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Message-ID: <df93c3fd-bd2e-3ae7-441e-c1e09b6b08f5@arm.com>
Date: Thu, 16 Jan 2020 10:34:06 +0000
From: Robin Murphy <robin.murphy@....com>
To: Jianqun Xu <jay.xu@...k-chips.com>, linus.walleij@...aro.org,
heiko@...ech.de, david.wu@...k-chips.com, kever.yang@...k-chips.com
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH v3 RESEND] pinctrl: rockchip: split rockchip pinctrl
driver by SoC type
On 2020-01-16 7:47 am, Jianqun Xu wrote:
> The pinctrl-rockchip driver grows larger by adding support for
> each new SoC, that make the kernel Image size too large since
> it only under one config named PINCTRL_ROCKCHIP.
>
> This patch split driver in the form of core driver + soc driver,
> - pinctrl-rockchip.c defined an platform probe register function
> - pinctrl-rkxxxx.c init module by matching compatible name
>
> For rockchip_defconfig, it needs to select all PINCTRL_RKxxxx to
> keep same with old driver.
>
> For some special defconfig, it can only select one PINCTRL_RKxxxx.
>
> Reviewed-by: Kever Yang <kever.yang@...k-chips.com>
> Signed-off-by: Jianqun Xu <jay.xu@...k-chips.com>
> ---
> changes since v2:
> - remove rockchip_pinctrl_remove
> - rename rockchip_pinctrl_* to rockchip_pctrl_*
> - redule arguments for get_soc_data
> - add module author for each new driver files
> - add copyright for new driver files
>
> changes since v1:
> - add rockchip_pinctrl_remove
> - remove unused head files in pinctrl-rockchip.h
>
> drivers/pinctrl/Kconfig | 8 +-
> drivers/pinctrl/Makefile | 2 +-
> drivers/pinctrl/rockchip/Kconfig | 126 ++
> drivers/pinctrl/rockchip/Makefile | 16 +
> drivers/pinctrl/rockchip/pinctrl-px30.c | 224 ++
> drivers/pinctrl/rockchip/pinctrl-rk2928.c | 70 +
> drivers/pinctrl/rockchip/pinctrl-rk3036.c | 69 +
> drivers/pinctrl/rockchip/pinctrl-rk3066a.c | 72 +
> drivers/pinctrl/rockchip/pinctrl-rk3066b.c | 51 +
> drivers/pinctrl/rockchip/pinctrl-rk3128.c | 161 ++
> drivers/pinctrl/rockchip/pinctrl-rk3188.c | 147 ++
> drivers/pinctrl/rockchip/pinctrl-rk3228.c | 225 ++
> drivers/pinctrl/rockchip/pinctrl-rk3288.c | 210 ++
> drivers/pinctrl/rockchip/pinctrl-rk3308.c | 420 ++++
> drivers/pinctrl/rockchip/pinctrl-rk3328.c | 272 +++
> drivers/pinctrl/rockchip/pinctrl-rk3368.c | 125 ++
> drivers/pinctrl/rockchip/pinctrl-rk3399.c | 195 ++
> drivers/pinctrl/rockchip/pinctrl-rockchip.c | 2043 +++++++++++++++++++
> drivers/pinctrl/rockchip/pinctrl-rockchip.h | 387 ++++
> drivers/pinctrl/rockchip/pinctrl-rv1108.c | 214 ++
> 20 files changed, 5029 insertions(+), 8 deletions(-)
> create mode 100644 drivers/pinctrl/rockchip/Kconfig
> create mode 100644 drivers/pinctrl/rockchip/Makefile
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-px30.c
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk2928.c
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3036.c
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3066a.c
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3066b.c
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3128.c
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3188.c
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3228.c
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3288.c
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3308.c
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3328.c
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3368.c
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3399.c
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-rockchip.c
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-rockchip.h
> create mode 100644 drivers/pinctrl/rockchip/pinctrl-rv1108.c
Hmm, it looks like you're still leaving behind the old file as entirely
dead code, which doesn't seem particularly good.
FWIW, a nice way to make a change like this easy to review is to have an
initial patch that just moves the existing C file and config/build stuff
to the new subdirectory (use `git format-patch -M ...`), then one or
more further patches on top to split out the individual SoC options.
That way the diffs stay small and reviewers don't have to read the patch
side-by-side with the original file to confirm that the "new" code
really is identical to what was there before.
Robin.
> diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
> index 3bfbf2ff6e2b..17ce48220795 100644
> --- a/drivers/pinctrl/Kconfig
> +++ b/drivers/pinctrl/Kconfig
> @@ -186,13 +186,6 @@ config PINCTRL_OXNAS
> select GPIOLIB_IRQCHIP
> select MFD_SYSCON
>
> -config PINCTRL_ROCKCHIP
> - bool
> - select PINMUX
> - select GENERIC_PINCONF
> - select GENERIC_IRQ_CHIP
> - select MFD_SYSCON
> -
> config PINCTRL_RZA1
> bool "Renesas RZ/A1 gpio and pinctrl driver"
> depends on OF
> @@ -395,6 +388,7 @@ source "drivers/pinctrl/nomadik/Kconfig"
> source "drivers/pinctrl/nuvoton/Kconfig"
> source "drivers/pinctrl/pxa/Kconfig"
> source "drivers/pinctrl/qcom/Kconfig"
> +source "drivers/pinctrl/rockchip/Kconfig"
> source "drivers/pinctrl/samsung/Kconfig"
> source "drivers/pinctrl/sh-pfc/Kconfig"
> source "drivers/pinctrl/spear/Kconfig"
> diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
> index 879f312bfb75..262d1a515c10 100644
> --- a/drivers/pinctrl/Makefile
> +++ b/drivers/pinctrl/Makefile
> @@ -26,7 +26,6 @@ obj-$(CONFIG_PINCTRL_OXNAS) += pinctrl-oxnas.o
> obj-$(CONFIG_PINCTRL_PALMAS) += pinctrl-palmas.o
> obj-$(CONFIG_PINCTRL_PIC32) += pinctrl-pic32.o
> obj-$(CONFIG_PINCTRL_PISTACHIO) += pinctrl-pistachio.o
> -obj-$(CONFIG_PINCTRL_ROCKCHIP) += pinctrl-rockchip.o
> obj-$(CONFIG_PINCTRL_RZA1) += pinctrl-rza1.o
> obj-$(CONFIG_PINCTRL_RZA2) += pinctrl-rza2.o
> obj-$(CONFIG_PINCTRL_RZN1) += pinctrl-rzn1.o
> @@ -59,6 +58,7 @@ obj-y += nomadik/
> obj-$(CONFIG_ARCH_NPCM7XX) += nuvoton/
> obj-$(CONFIG_PINCTRL_PXA) += pxa/
> obj-$(CONFIG_ARCH_QCOM) += qcom/
> +obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip/
> obj-$(CONFIG_PINCTRL_SAMSUNG) += samsung/
> obj-$(CONFIG_PINCTRL_SH_PFC) += sh-pfc/
> obj-$(CONFIG_PINCTRL_SPEAR) += spear/
> diff --git a/drivers/pinctrl/rockchip/Kconfig b/drivers/pinctrl/rockchip/Kconfig
> new file mode 100644
> index 000000000000..4873a05108f8
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/Kconfig
> @@ -0,0 +1,126 @@
> +# SPDX-License-Identifier: GPL-2.0
> +
> +if (ARCH_ROCKCHIP || COMPILE_TEST)
> +
> +config PINCTRL_ROCKCHIP
> + bool
> + select PINMUX
> + select PINCONF
> + select GENERIC_PINCONF
> + select GPIOLIB_IRQCHIP
> + select GENERIC_IRQ_CHIP
> + select MFD_SYSCON
> +
> +config PINCTRL_PX30
> + tristate "PX30 pin controller driver"
> + depends on GPIOLIB && OF
> + select PINCTRL_ROCKCHIP
> + help
> + This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> + SoCs on Rockchip platform.
> +
> +config PINCTRL_RK2928
> + tristate "RK2928 pin controller driver"
> + depends on GPIOLIB && OF
> + select PINCTRL_ROCKCHIP
> + help
> + This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> + SoCs on Rockchip platform.
> +
> +config PINCTRL_RK3036
> + tristate "RK3036 pin controller driver"
> + depends on GPIOLIB && OF
> + select PINCTRL_ROCKCHIP
> + help
> + This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> + SoCs on Rockchip platform.
> +
> +config PINCTRL_RK3066A
> + tristate "RK3066A pin controller driver"
> + depends on GPIOLIB && OF
> + select PINCTRL_ROCKCHIP
> + help
> + This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> + SoCs on Rockchip platform.
> +
> +config PINCTRL_RK3066B
> + tristate "RK3066B pin controller driver"
> + depends on GPIOLIB && OF
> + select PINCTRL_ROCKCHIP
> + help
> + This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> + SoCs on Rockchip platform.
> +
> +config PINCTRL_RK3128
> + tristate "RK3128 pin controller driver"
> + depends on GPIOLIB && OF
> + select PINCTRL_ROCKCHIP
> + help
> + This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> + SoCs on Rockchip platform.
> +
> +config PINCTRL_RK3188
> + tristate "RK3188 pin controller driver"
> + depends on GPIOLIB && OF
> + select PINCTRL_ROCKCHIP
> + help
> + This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> + SoCs on Rockchip platform.
> +
> +config PINCTRL_RK3228
> + tristate "RK3228 pin controller driver"
> + depends on GPIOLIB && OF
> + select PINCTRL_ROCKCHIP
> + help
> + This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> + SoCs on Rockchip platform.
> +
> +config PINCTRL_RK3288
> + tristate "RK3288 pin controller driver"
> + depends on GPIOLIB && OF
> + select PINCTRL_ROCKCHIP
> + help
> + This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> + SoCs on Rockchip platform.
> +
> +config PINCTRL_RK3308
> + tristate "RK3308 pin controller driver"
> + depends on GPIOLIB && OF
> + select PINCTRL_ROCKCHIP
> + help
> + This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> + SoCs on Rockchip platform.
> +
> +config PINCTRL_RK3328
> + tristate "RK3328 pin controller driver"
> + depends on GPIOLIB && OF
> + select PINCTRL_ROCKCHIP
> + help
> + This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> + SoCs on Rockchip platform.
> +
> +config PINCTRL_RK3368
> + tristate "RK3368 pin controller driver"
> + depends on GPIOLIB && OF
> + select PINCTRL_ROCKCHIP
> + help
> + This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> + SoCs on Rockchip platform.
> +
> +config PINCTRL_RK3399
> + tristate "RK3399 pin controller driver"
> + depends on GPIOLIB && OF
> + select PINCTRL_ROCKCHIP
> + help
> + This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> + SoCs on Rockchip platform.
> +
> +config PINCTRL_RV1108
> + tristate "RV1108 pin controller driver"
> + depends on GPIOLIB && OF
> + select PINCTRL_ROCKCHIP
> + help
> + This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> + SoCs on Rockchip platform.
> +
> +endif
> diff --git a/drivers/pinctrl/rockchip/Makefile b/drivers/pinctrl/rockchip/Makefile
> new file mode 100644
> index 000000000000..a250b60631f5
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/Makefile
> @@ -0,0 +1,16 @@
> +# SPDX-License-Identifier: GPL-2.0
> +obj-$(CONFIG_PINCTRL_PX30) += pinctrl-px30.o
> +obj-$(CONFIG_PINCTRL_RK2928) += pinctrl-rk2928.o
> +obj-$(CONFIG_PINCTRL_RK3036) += pinctrl-rk3036.o
> +obj-$(CONFIG_PINCTRL_RK3066A) += pinctrl-rk3066a.o
> +obj-$(CONFIG_PINCTRL_RK3066B) += pinctrl-rk3066b.o
> +obj-$(CONFIG_PINCTRL_RK3128) += pinctrl-rk3128.o
> +obj-$(CONFIG_PINCTRL_RK3188) += pinctrl-rk3188.o
> +obj-$(CONFIG_PINCTRL_RK3228) += pinctrl-rk3228.o
> +obj-$(CONFIG_PINCTRL_RK3288) += pinctrl-rk3288.o
> +obj-$(CONFIG_PINCTRL_RK3308) += pinctrl-rk3308.o
> +obj-$(CONFIG_PINCTRL_RK3328) += pinctrl-rk3328.o
> +obj-$(CONFIG_PINCTRL_RK3368) += pinctrl-rk3368.o
> +obj-$(CONFIG_PINCTRL_RK3399) += pinctrl-rk3399.o
> +obj-$(CONFIG_PINCTRL_ROCKCHIP) += pinctrl-rockchip.o
> +obj-$(CONFIG_PINCTRL_RV1108) += pinctrl-rv1108.o
> diff --git a/drivers/pinctrl/rockchip/pinctrl-px30.c b/drivers/pinctrl/rockchip/pinctrl-px30.c
> new file mode 100644
> index 000000000000..d92563cdf957
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-px30.c
> @@ -0,0 +1,224 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +
> +#include "pinctrl-rockchip.h"
> +
> +#define PX30_PULL_PMU_OFFSET 0x10
> +#define PX30_PULL_GRF_OFFSET 0x60
> +#define PX30_PULL_BITS_PER_PIN 2
> +#define PX30_PULL_PINS_PER_REG 8
> +#define PX30_PULL_BANK_STRIDE 16
> +
> +#define PX30_DRV_PMU_OFFSET 0x20
> +#define PX30_DRV_GRF_OFFSET 0xf0
> +#define PX30_DRV_BITS_PER_PIN 2
> +#define PX30_DRV_PINS_PER_REG 8
> +#define PX30_DRV_BANK_STRIDE 16
> +
> +#define PX30_SCHMITT_PMU_OFFSET 0x38
> +#define PX30_SCHMITT_GRF_OFFSET 0xc0
> +#define PX30_SCHMITT_PINS_PER_PMU_REG 16
> +#define PX30_SCHMITT_BANK_STRIDE 16
> +#define PX30_SCHMITT_PINS_PER_GRF_REG 8
> +
> +static struct rockchip_mux_route_data px30_mux_route_data[] = {
> + {
> + /* cif-d2m0 */
> + .bank_num = 2,
> + .pin = 0,
> + .func = 1,
> + .route_offset = 0x184,
> + .route_val = BIT(16 + 7),
> + }, {
> + /* cif-d2m1 */
> + .bank_num = 3,
> + .pin = 3,
> + .func = 3,
> + .route_offset = 0x184,
> + .route_val = BIT(16 + 7) | BIT(7),
> + }, {
> + /* pdm-m0 */
> + .bank_num = 3,
> + .pin = 22,
> + .func = 2,
> + .route_offset = 0x184,
> + .route_val = BIT(16 + 8),
> + }, {
> + /* pdm-m1 */
> + .bank_num = 2,
> + .pin = 22,
> + .func = 1,
> + .route_offset = 0x184,
> + .route_val = BIT(16 + 8) | BIT(8),
> + }, {
> + /* uart2-rxm0 */
> + .bank_num = 1,
> + .pin = 27,
> + .func = 2,
> + .route_offset = 0x184,
> + .route_val = BIT(16 + 10),
> + }, {
> + /* uart2-rxm1 */
> + .bank_num = 2,
> + .pin = 14,
> + .func = 2,
> + .route_offset = 0x184,
> + .route_val = BIT(16 + 10) | BIT(10),
> + }, {
> + /* uart3-rxm0 */
> + .bank_num = 0,
> + .pin = 17,
> + .func = 2,
> + .route_offset = 0x184,
> + .route_val = BIT(16 + 9),
> + }, {
> + /* uart3-rxm1 */
> + .bank_num = 1,
> + .pin = 15,
> + .func = 2,
> + .route_offset = 0x184,
> + .route_val = BIT(16 + 9) | BIT(9),
> + },
> +};
> +
> +static void px30_calc_pull(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + /* The first 32 pins of the first bank are located in PMU */
> + if (bank->bank_num == 0) {
> + *regmap = info->regmap_pmu;
> + *reg = PX30_PULL_PMU_OFFSET;
> + } else {
> + *regmap = info->regmap_base;
> + *reg = PX30_PULL_GRF_OFFSET;
> +
> + /* correct the offset, as we're starting with the 2nd bank */
> + *reg -= 0x10;
> + *reg += bank->bank_num * PX30_PULL_BANK_STRIDE;
> + }
> +
> + *reg += ((pin_num / PX30_PULL_PINS_PER_REG) * 4);
> + *bit = (pin_num % PX30_PULL_PINS_PER_REG);
> + *bit *= PX30_PULL_BITS_PER_PIN;
> +}
> +
> +static void px30_calc_drv(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + /* The first 32 pins of the first bank are located in PMU */
> + if (bank->bank_num == 0) {
> + *regmap = info->regmap_pmu;
> + *reg = PX30_DRV_PMU_OFFSET;
> + } else {
> + *regmap = info->regmap_base;
> + *reg = PX30_DRV_GRF_OFFSET;
> +
> + /* correct the offset, as we're starting with the 2nd bank */
> + *reg -= 0x10;
> + *reg += bank->bank_num * PX30_DRV_BANK_STRIDE;
> + }
> +
> + *reg += ((pin_num / PX30_DRV_PINS_PER_REG) * 4);
> + *bit = (pin_num % PX30_DRV_PINS_PER_REG);
> + *bit *= PX30_DRV_BITS_PER_PIN;
> +}
> +
> +static int px30_calc_schmitt(struct rockchip_pin_bank *bank,
> + int pin_num,
> + struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> + int pins_per_reg;
> +
> + if (bank->bank_num == 0) {
> + *regmap = info->regmap_pmu;
> + *reg = PX30_SCHMITT_PMU_OFFSET;
> + pins_per_reg = PX30_SCHMITT_PINS_PER_PMU_REG;
> + } else {
> + *regmap = info->regmap_base;
> + *reg = PX30_SCHMITT_GRF_OFFSET;
> + pins_per_reg = PX30_SCHMITT_PINS_PER_GRF_REG;
> + *reg += (bank->bank_num - 1) * PX30_SCHMITT_BANK_STRIDE;
> + }
> +
> + *reg += ((pin_num / pins_per_reg) * 4);
> + *bit = pin_num % pins_per_reg;
> +
> + return 0;
> +}
> +
> +static struct rockchip_pin_bank px30_pin_banks[] = {
> + PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0",
> + IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU),
> + PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1",
> + IOMUX_WIDTH_4BIT,
> + IOMUX_WIDTH_4BIT,
> + IOMUX_WIDTH_4BIT,
> + IOMUX_WIDTH_4BIT),
> + PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2",
> + IOMUX_WIDTH_4BIT,
> + IOMUX_WIDTH_4BIT,
> + IOMUX_WIDTH_4BIT,
> + IOMUX_WIDTH_4BIT),
> + PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3",
> + IOMUX_WIDTH_4BIT,
> + IOMUX_WIDTH_4BIT,
> + IOMUX_WIDTH_4BIT,
> + IOMUX_WIDTH_4BIT),
> +};
> +
> +static struct rockchip_pin_ctrl px30_pin_ctrl = {
> + .pin_banks = px30_pin_banks,
> + .nr_banks = ARRAY_SIZE(px30_pin_banks),
> + .label = "PX30-GPIO",
> + .type = PX30,
> + .grf_mux_offset = 0x0,
> + .pmu_mux_offset = 0x0,
> + .iomux_routes = px30_mux_route_data,
> + .niomux_routes = ARRAY_SIZE(px30_mux_route_data),
> + .pull_calc_reg = px30_calc_pull,
> + .drv_calc_reg = px30_calc_drv,
> + .schmitt_calc_reg = px30_calc_schmitt,
> +};
> +
> +static const struct of_device_id px30_pinctrl_dt_match[] = {
> + { .compatible = "rockchip,px30-pinctrl",
> + .data = &px30_pin_ctrl },
> + {},
> +};
> +
> +static struct platform_driver px30_pinctrl_driver = {
> + .probe = rockchip_pctrl_probe,
> + .driver = {
> + .name = "px30-pinctrl",
> + .pm = &rockchip_pctrl_dev_pm_ops,
> + .of_match_table = px30_pinctrl_dt_match,
> + },
> +};
> +
> +static int __init px30_pinctrl_init(void)
> +{
> + return platform_driver_register(&px30_pinctrl_driver);
> +}
> +postcore_initcall(px30_pinctrl_init);
> +
> +MODULE_DESCRIPTION("PX30 pin control and GPIO driver");
> +MODULE_AUTHOR("Jianqun Xu <jay.xu@...k-chips.com>");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/pinctrl/rockchip/pinctrl-rk2928.c b/drivers/pinctrl/rockchip/pinctrl-rk2928.c
> new file mode 100644
> index 000000000000..14bca5b427da
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-rk2928.c
> @@ -0,0 +1,70 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +
> +#include "pinctrl-rockchip.h"
> +
> +#define RK2928_PULL_OFFSET 0x118
> +#define RK2928_PULL_PINS_PER_REG 16
> +#define RK2928_PULL_BANK_STRIDE 8
> +
> +static void rk2928_calc_pull(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + *regmap = info->regmap_base;
> + *reg = RK2928_PULL_OFFSET;
> + *reg += bank->bank_num * RK2928_PULL_BANK_STRIDE;
> + *reg += (pin_num / RK2928_PULL_PINS_PER_REG) * 4;
> +
> + *bit = pin_num % RK2928_PULL_PINS_PER_REG;
> +};
> +
> +static struct rockchip_pin_bank rk2928_pin_banks[] = {
> + PIN_BANK(0, 32, "gpio0"),
> + PIN_BANK(1, 32, "gpio1"),
> + PIN_BANK(2, 32, "gpio2"),
> + PIN_BANK(3, 32, "gpio3"),
> +};
> +
> +static struct rockchip_pin_ctrl rk2928_pin_ctrl = {
> + .pin_banks = rk2928_pin_banks,
> + .nr_banks = ARRAY_SIZE(rk2928_pin_banks),
> + .label = "RK2928-GPIO",
> + .type = RK2928,
> + .grf_mux_offset = 0xa8,
> + .pull_calc_reg = rk2928_calc_pull,
> +};
> +
> +static const struct of_device_id rk2928_pinctrl_dt_match[] = {
> + { .compatible = "rockchip,rk2928-pinctrl",
> + .data = &rk2928_pin_ctrl },
> + {},
> +};
> +
> +static struct platform_driver rk2928_pinctrl_driver = {
> + .probe = rockchip_pctrl_probe,
> + .driver = {
> + .name = "rk2928-pinctrl",
> + .pm = &rockchip_pctrl_dev_pm_ops,
> + .of_match_table = rk2928_pinctrl_dt_match,
> + },
> +};
> +
> +static int __init rk2928_pinctrl_init(void)
> +{
> + return platform_driver_register(&rk2928_pinctrl_driver);
> +}
> +postcore_initcall(rk2928_pinctrl_init);
> +
> +MODULE_DESCRIPTION("RK2928 pin control and GPIO driver");
> +MODULE_AUTHOR("Jianqun Xu <jay.xu@...k-chips.com>");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3036.c b/drivers/pinctrl/rockchip/pinctrl-rk3036.c
> new file mode 100644
> index 000000000000..78363fc892de
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-rk3036.c
> @@ -0,0 +1,69 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +
> +#include "pinctrl-rockchip.h"
> +
> +#define RK3036_PULL_OFFSET 0x118
> +#define RK3036_PULL_PINS_PER_REG 16
> +#define RK3036_PULL_BANK_STRIDE 8
> +
> +static void rk3036_calc_pull(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + *regmap = info->regmap_base;
> + *reg = RK3036_PULL_OFFSET;
> + *reg += bank->bank_num * RK3036_PULL_BANK_STRIDE;
> + *reg += (pin_num / RK3036_PULL_PINS_PER_REG) * 4;
> +
> + *bit = pin_num % RK3036_PULL_PINS_PER_REG;
> +};
> +
> +static struct rockchip_pin_bank rk3036_pin_banks[] = {
> + PIN_BANK(0, 32, "gpio0"),
> + PIN_BANK(1, 32, "gpio1"),
> + PIN_BANK(2, 32, "gpio2"),
> +};
> +
> +static struct rockchip_pin_ctrl rk3036_pin_ctrl = {
> + .pin_banks = rk3036_pin_banks,
> + .nr_banks = ARRAY_SIZE(rk3036_pin_banks),
> + .label = "RK3036-GPIO",
> + .type = RK2928,
> + .grf_mux_offset = 0xa8,
> + .pull_calc_reg = rk3036_calc_pull,
> +};
> +
> +static const struct of_device_id rk3036_pinctrl_dt_match[] = {
> + { .compatible = "rockchip,rk3036-pinctrl",
> + .data = &rk3036_pin_ctrl },
> + {},
> +};
> +
> +static struct platform_driver rk3036_pinctrl_driver = {
> + .probe = rockchip_pctrl_probe,
> + .driver = {
> + .name = "rk3036-pinctrl",
> + .pm = &rockchip_pctrl_dev_pm_ops,
> + .of_match_table = rk3036_pinctrl_dt_match,
> + },
> +};
> +
> +static int __init rk3036_pinctrl_init(void)
> +{
> + return platform_driver_register(&rk3036_pinctrl_driver);
> +}
> +postcore_initcall(rk3036_pinctrl_init);
> +
> +MODULE_DESCRIPTION("RK3036 pin control and GPIO driver");
> +MODULE_AUTHOR("Jianqun Xu <jay.xu@...k-chips.com>");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3066a.c b/drivers/pinctrl/rockchip/pinctrl-rk3066a.c
> new file mode 100644
> index 000000000000..476e7b2d738e
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-rk3066a.c
> @@ -0,0 +1,72 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +
> +#include "pinctrl-rockchip.h"
> +
> +#define RK3066A_PULL_GRF_OFFSET 0x118
> +#define RK3066A_PULL_PINS_PER_REG 16
> +#define RK3066A_PULL_BANK_STRIDE 8
> +
> +static void rk3066a_calc_pull(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + *regmap = info->regmap_base;
> + *reg = RK3066A_PULL_GRF_OFFSET;
> + *reg += bank->bank_num * RK3066A_PULL_BANK_STRIDE;
> + *reg += (pin_num / RK3066A_PULL_PINS_PER_REG) * 4;
> +
> + *bit = pin_num % RK3066A_PULL_PINS_PER_REG;
> +};
> +
> +static struct rockchip_pin_bank rk3066a_pin_banks[] = {
> + PIN_BANK(0, 32, "gpio0"),
> + PIN_BANK(1, 32, "gpio1"),
> + PIN_BANK(2, 32, "gpio2"),
> + PIN_BANK(3, 32, "gpio3"),
> + PIN_BANK(4, 32, "gpio4"),
> + PIN_BANK(6, 16, "gpio6"),
> +};
> +
> +static struct rockchip_pin_ctrl rk3066a_pin_ctrl = {
> + .pin_banks = rk3066a_pin_banks,
> + .nr_banks = ARRAY_SIZE(rk3066a_pin_banks),
> + .label = "RK3066-GPIO",
> + .type = RK2928,
> + .grf_mux_offset = 0xa8,
> + .pull_calc_reg = rk3066a_calc_pull,
> +};
> +
> +static const struct of_device_id rk3066a_pinctrl_dt_match[] = {
> + { .compatible = "rockchip,rk3066a-pinctrl",
> + .data = &rk3066a_pin_ctrl },
> + {},
> +};
> +
> +static struct platform_driver rk3066a_pinctrl_driver = {
> + .probe = rockchip_pctrl_probe,
> + .driver = {
> + .name = "rk3066a-pinctrl",
> + .pm = &rockchip_pctrl_dev_pm_ops,
> + .of_match_table = rk3066a_pinctrl_dt_match,
> + },
> +};
> +
> +static int __init rk3066a_pinctrl_init(void)
> +{
> + return platform_driver_register(&rk3066a_pinctrl_driver);
> +}
> +postcore_initcall(rk3066a_pinctrl_init);
> +
> +MODULE_DESCRIPTION("RK3066A pin control and GPIO driver");
> +MODULE_AUTHOR("Jianqun Xu <jay.xu@...k-chips.com>");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3066b.c b/drivers/pinctrl/rockchip/pinctrl-rk3066b.c
> new file mode 100644
> index 000000000000..7353cc8caa37
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-rk3066b.c
> @@ -0,0 +1,51 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +
> +#include "pinctrl-rockchip.h"
> +
> +static struct rockchip_pin_bank rk3066b_pin_banks[] = {
> + PIN_BANK(0, 32, "gpio0"),
> + PIN_BANK(1, 32, "gpio1"),
> + PIN_BANK(2, 32, "gpio2"),
> + PIN_BANK(3, 32, "gpio3"),
> +};
> +
> +static struct rockchip_pin_ctrl rk3066b_pin_ctrl = {
> + .pin_banks = rk3066b_pin_banks,
> + .nr_banks = ARRAY_SIZE(rk3066b_pin_banks),
> + .label = "RK3066b-GPIO",
> + .type = RK3066B,
> + .grf_mux_offset = 0x60,
> +};
> +
> +static const struct of_device_id rk3066b_pinctrl_dt_match[] = {
> + { .compatible = "rockchip,rk3066b-pinctrl",
> + .data = &rk3066b_pin_ctrl },
> + {},
> +};
> +
> +static struct platform_driver rk3066b_pinctrl_driver = {
> + .probe = rockchip_pctrl_probe,
> + .driver = {
> + .name = "rk3066b-pinctrl",
> + .pm = &rockchip_pctrl_dev_pm_ops,
> + .of_match_table = rk3066b_pinctrl_dt_match,
> + },
> +};
> +
> +static int __init rk3066b_pinctrl_init(void)
> +{
> + return platform_driver_register(&rk3066b_pinctrl_driver);
> +}
> +postcore_initcall(rk3066b_pinctrl_init);
> +
> +MODULE_DESCRIPTION("RK3066B pin control and GPIO driver");
> +MODULE_AUTHOR("Jianqun Xu <jay.xu@...k-chips.com>");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3128.c b/drivers/pinctrl/rockchip/pinctrl-rk3128.c
> new file mode 100644
> index 000000000000..da289019fd9c
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-rk3128.c
> @@ -0,0 +1,161 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +
> +#include "pinctrl-rockchip.h"
> +
> +#define RK3128_PULL_GRF_OFFSET 0x118
> +#define RK3128_PULL_PINS_PER_REG 16
> +#define RK3128_PULL_BANK_STRIDE 8
> +
> +static struct rockchip_mux_route_data rk3128_mux_route_data[] = {
> + {
> + /* spi-0 */
> + .bank_num = 1,
> + .pin = 10,
> + .func = 1,
> + .route_offset = 0x144,
> + .route_val = BIT(16 + 3) | BIT(16 + 4),
> + }, {
> + /* spi-1 */
> + .bank_num = 1,
> + .pin = 27,
> + .func = 3,
> + .route_offset = 0x144,
> + .route_val = BIT(16 + 3) | BIT(16 + 4) | BIT(3),
> + }, {
> + /* spi-2 */
> + .bank_num = 0,
> + .pin = 13,
> + .func = 2,
> + .route_offset = 0x144,
> + .route_val = BIT(16 + 3) | BIT(16 + 4) | BIT(4),
> + }, {
> + /* i2s-0 */
> + .bank_num = 1,
> + .pin = 5,
> + .func = 1,
> + .route_offset = 0x144,
> + .route_val = BIT(16 + 5),
> + }, {
> + /* i2s-1 */
> + .bank_num = 0,
> + .pin = 14,
> + .func = 1,
> + .route_offset = 0x144,
> + .route_val = BIT(16 + 5) | BIT(5),
> + }, {
> + /* emmc-0 */
> + .bank_num = 1,
> + .pin = 22,
> + .func = 2,
> + .route_offset = 0x144,
> + .route_val = BIT(16 + 6),
> + }, {
> + /* emmc-1 */
> + .bank_num = 2,
> + .pin = 4,
> + .func = 2,
> + .route_offset = 0x144,
> + .route_val = BIT(16 + 6) | BIT(6),
> + },
> +};
> +
> +static struct rockchip_mux_recalced_data rk3128_mux_recalced_data[] = {
> + {
> + .num = 2,
> + .pin = 20,
> + .reg = 0xe8,
> + .bit = 0,
> + .mask = 0x7
> + }, {
> + .num = 2,
> + .pin = 21,
> + .reg = 0xe8,
> + .bit = 4,
> + .mask = 0x7
> + }, {
> + .num = 2,
> + .pin = 22,
> + .reg = 0xe8,
> + .bit = 8,
> + .mask = 0x7
> + }, {
> + .num = 2,
> + .pin = 23,
> + .reg = 0xe8,
> + .bit = 12,
> + .mask = 0x7
> + }, {
> + .num = 2,
> + .pin = 24,
> + .reg = 0xd4,
> + .bit = 12,
> + .mask = 0x7
> + },
> +};
> +
> +static void rk3128_calc_pull(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + *regmap = info->regmap_base;
> + *reg = RK3128_PULL_GRF_OFFSET;
> + *reg += bank->bank_num * RK3128_PULL_BANK_STRIDE;
> + *reg += ((pin_num / RK3128_PULL_PINS_PER_REG) * 4);
> +
> + *bit = pin_num % RK3128_PULL_PINS_PER_REG;
> +}
> +
> +static struct rockchip_pin_bank rk3128_pin_banks[] = {
> + PIN_BANK(0, 32, "gpio0"),
> + PIN_BANK(1, 32, "gpio1"),
> + PIN_BANK(2, 32, "gpio2"),
> + PIN_BANK(3, 32, "gpio3"),
> +};
> +
> +static struct rockchip_pin_ctrl rk3128_pin_ctrl = {
> + .pin_banks = rk3128_pin_banks,
> + .nr_banks = ARRAY_SIZE(rk3128_pin_banks),
> + .label = "RK3128-GPIO",
> + .type = RK3128,
> + .grf_mux_offset = 0xa8,
> + .iomux_recalced = rk3128_mux_recalced_data,
> + .niomux_recalced = ARRAY_SIZE(rk3128_mux_recalced_data),
> + .iomux_routes = rk3128_mux_route_data,
> + .niomux_routes = ARRAY_SIZE(rk3128_mux_route_data),
> + .pull_calc_reg = rk3128_calc_pull,
> +};
> +
> +static const struct of_device_id rk3128_pinctrl_dt_match[] = {
> + { .compatible = "rockchip,rk3128-pinctrl",
> + .data = &rk3128_pin_ctrl },
> + {},
> +};
> +
> +static struct platform_driver rk3128_pinctrl_driver = {
> + .probe = rockchip_pctrl_probe,
> + .driver = {
> + .name = "rk3128-pinctrl",
> + .pm = &rockchip_pctrl_dev_pm_ops,
> + .of_match_table = rk3128_pinctrl_dt_match,
> + },
> +};
> +
> +static int __init rk3128_pinctrl_init(void)
> +{
> + return platform_driver_register(&rk3128_pinctrl_driver);
> +}
> +postcore_initcall(rk3128_pinctrl_init);
> +
> +MODULE_DESCRIPTION("RK3128 pin control and GPIO driver");
> +MODULE_AUTHOR("Jianqun Xu <jay.xu@...k-chips.com>");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3188.c b/drivers/pinctrl/rockchip/pinctrl-rk3188.c
> new file mode 100644
> index 000000000000..802e3791f8b4
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-rk3188.c
> @@ -0,0 +1,147 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +
> +#include "pinctrl-rockchip.h"
> +
> +#define RK3188_PULL_GRF_OFFSET 0x164
> +#define RK3188_PULL_PMU_OFFSET 0x64
> +#define RK3188_PULL_BITS_PER_PIN 2
> +#define RK3188_PULL_PINS_PER_REG 8
> +#define RK3188_PULL_BANK_STRIDE 16
> +
> +static void rk3188_calc_pull(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + /* The first 12 pins of the first bank are located elsewhere */
> + if (bank->bank_num == 0 && pin_num < 12) {
> + *regmap = info->regmap_pmu ? info->regmap_pmu
> + : bank->regmap_pull;
> + *reg = info->regmap_pmu ? RK3188_PULL_PMU_OFFSET : 0;
> + *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
> + *bit = pin_num % RK3188_PULL_PINS_PER_REG;
> + *bit *= RK3188_PULL_BITS_PER_PIN;
> + } else {
> + *regmap = info->regmap_pull ? info->regmap_pull
> + : info->regmap_base;
> + *reg = info->regmap_pull ? 0 : RK3188_PULL_GRF_OFFSET;
> +
> + /* correct the offset, as it is the second pull register */
> + *reg -= 4;
> + *reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
> + *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
> +
> + /*
> + * The bits in these registers have an inverse ordering
> + * with the lowest pin being in bits 15:14 and the highest
> + * pin in bits 1:0
> + */
> + *bit = 7 - (pin_num % RK3188_PULL_PINS_PER_REG);
> + *bit *= RK3188_PULL_BITS_PER_PIN;
> + }
> +}
> +
> +static struct rockchip_pin_bank rk3188_pin_banks[] = {
> + PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_GPIO_ONLY, 0, 0, 0),
> + PIN_BANK(1, 32, "gpio1"),
> + PIN_BANK(2, 32, "gpio2"),
> + PIN_BANK(3, 32, "gpio3"),
> +};
> +
> +static struct rockchip_pin_ctrl rk3188_pin_ctrl = {
> + .pin_banks = rk3188_pin_banks,
> + .nr_banks = ARRAY_SIZE(rk3188_pin_banks),
> + .label = "RK3188-GPIO",
> + .type = RK3188,
> + .grf_mux_offset = 0x60,
> + .pull_calc_reg = rk3188_calc_pull,
> +};
> +
> +static struct regmap_config rockchip_regmap_config = {
> + .reg_bits = 32,
> + .val_bits = 32,
> + .reg_stride = 4,
> +};
> +
> +static int rk3188_pinctrl_probe(struct platform_device *pdev)
> +{
> + struct rockchip_pinctrl *info;
> + int ret;
> +
> + ret = rockchip_pctrl_probe(pdev);
> + if (ret)
> + return ret;
> +
> + info = platform_get_drvdata(pdev);
> + if (!info)
> + return -EINVAL;
> +
> + if (IS_ERR_OR_NULL(info->regmap_base)) {
> + struct resource *res;
> + void __iomem *base;
> +
> + res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> + base = devm_ioremap_resource(&pdev->dev, res);
> + if (IS_ERR(base))
> + return PTR_ERR(base);
> +
> + rockchip_regmap_config.max_register = resource_size(res) - 4;
> + rockchip_regmap_config.name = "rockchip,pinctrl";
> + info->regmap_base =
> + devm_regmap_init_mmio(&pdev->dev, base,
> + &rockchip_regmap_config);
> +
> + /* to check for the old dt-bindings */
> + info->reg_size = resource_size(res);
> +
> + /* Honor the old binding, with pull registers as 2nd resource */
> + res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
> + base = devm_ioremap_resource(&pdev->dev, res);
> + if (IS_ERR(base))
> + return PTR_ERR(base);
> +
> + rockchip_regmap_config.max_register =
> + resource_size(res) - 4;
> + rockchip_regmap_config.name = "rockchip,pinctrl-pull";
> + info->regmap_pull =
> + devm_regmap_init_mmio(&pdev->dev,
> + base,
> + &rockchip_regmap_config);
> + }
> +
> + return 0;
> +}
> +
> +static const struct of_device_id rk3188_pinctrl_dt_match[] = {
> + { .compatible = "rockchip,rk3188-pinctrl",
> + .data = &rk3188_pin_ctrl },
> + {},
> +};
> +
> +static struct platform_driver rk3188_pinctrl_driver = {
> + .probe = rk3188_pinctrl_probe,
> + .driver = {
> + .name = "rk3188-pinctrl",
> + .pm = &rockchip_pctrl_dev_pm_ops,
> + .of_match_table = rk3188_pinctrl_dt_match,
> + },
> +};
> +
> +static int __init rk3188_pinctrl_init(void)
> +{
> + return platform_driver_register(&rk3188_pinctrl_driver);
> +}
> +postcore_initcall(rk3188_pinctrl_init);
> +
> +MODULE_DESCRIPTION("RK3188 pin control and GPIO driver");
> +MODULE_AUTHOR("Jianqun Xu <jay.xu@...k-chips.com>");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3228.c b/drivers/pinctrl/rockchip/pinctrl-rk3228.c
> new file mode 100644
> index 000000000000..2a4e14f7dc6c
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-rk3228.c
> @@ -0,0 +1,225 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +
> +#include "pinctrl-rockchip.h"
> +
> +#define RK3228_PULL_GRF_OFFSET 0x100
> +#define RK3228_PULL_BITS_PER_PIN 2
> +#define RK3228_PULL_PINS_PER_REG 8
> +#define RK3228_PULL_BANK_STRIDE 16
> +
> +#define RK3228_DRV_GRF_OFFSET 0x200
> +#define RK3228_DRV_BITS_PER_PIN 2
> +#define RK3228_DRV_PINS_PER_REG 8
> +#define RK3228_DRV_BANK_STRIDE 16
> +
> +static struct rockchip_mux_route_data rk3228_mux_route_data[] = {
> + {
> + /* pwm0-0 */
> + .bank_num = 0,
> + .pin = 26,
> + .func = 1,
> + .route_offset = 0x50,
> + .route_val = BIT(16),
> + }, {
> + /* pwm0-1 */
> + .bank_num = 3,
> + .pin = 21,
> + .func = 1,
> + .route_offset = 0x50,
> + .route_val = BIT(16) | BIT(0),
> + }, {
> + /* pwm1-0 */
> + .bank_num = 0,
> + .pin = 27,
> + .func = 1,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 1),
> + }, {
> + /* pwm1-1 */
> + .bank_num = 0,
> + .pin = 30,
> + .func = 2,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 1) | BIT(1),
> + }, {
> + /* pwm2-0 */
> + .bank_num = 0,
> + .pin = 28,
> + .func = 1,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 2),
> + }, {
> + /* pwm2-1 */
> + .bank_num = 1,
> + .pin = 12,
> + .func = 2,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 2) | BIT(2),
> + }, {
> + /* pwm3-0 */
> + .bank_num = 3,
> + .pin = 26,
> + .func = 1,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 3),
> + }, {
> + /* pwm3-1 */
> + .bank_num = 1,
> + .pin = 11,
> + .func = 2,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 3) | BIT(3),
> + }, {
> + /* sdio-0_d0 */
> + .bank_num = 1,
> + .pin = 1,
> + .func = 1,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 4),
> + }, {
> + /* sdio-1_d0 */
> + .bank_num = 3,
> + .pin = 2,
> + .func = 1,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 4) | BIT(4),
> + }, {
> + /* spi-0_rx */
> + .bank_num = 0,
> + .pin = 13,
> + .func = 2,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 5),
> + }, {
> + /* spi-1_rx */
> + .bank_num = 2,
> + .pin = 0,
> + .func = 2,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 5) | BIT(5),
> + }, {
> + /* emmc-0_cmd */
> + .bank_num = 1,
> + .pin = 22,
> + .func = 2,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 7),
> + }, {
> + /* emmc-1_cmd */
> + .bank_num = 2,
> + .pin = 4,
> + .func = 2,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 7) | BIT(7),
> + }, {
> + /* uart2-0_rx */
> + .bank_num = 1,
> + .pin = 19,
> + .func = 2,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 8),
> + }, {
> + /* uart2-1_rx */
> + .bank_num = 1,
> + .pin = 10,
> + .func = 2,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 8) | BIT(8),
> + }, {
> + /* uart1-0_rx */
> + .bank_num = 1,
> + .pin = 10,
> + .func = 1,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 11),
> + }, {
> + /* uart1-1_rx */
> + .bank_num = 3,
> + .pin = 13,
> + .func = 1,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 11) | BIT(11),
> + },
> +};
> +
> +static void rk3228_calc_pull(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + *regmap = info->regmap_base;
> + *reg = RK3228_PULL_GRF_OFFSET;
> + *reg += bank->bank_num * RK3228_PULL_BANK_STRIDE;
> + *reg += ((pin_num / RK3228_PULL_PINS_PER_REG) * 4);
> +
> + *bit = (pin_num % RK3228_PULL_PINS_PER_REG);
> + *bit *= RK3228_PULL_BITS_PER_PIN;
> +}
> +
> +static void rk3228_calc_drv(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + *regmap = info->regmap_base;
> + *reg = RK3228_DRV_GRF_OFFSET;
> + *reg += bank->bank_num * RK3228_DRV_BANK_STRIDE;
> + *reg += ((pin_num / RK3228_DRV_PINS_PER_REG) * 4);
> +
> + *bit = (pin_num % RK3228_DRV_PINS_PER_REG);
> + *bit *= RK3228_DRV_BITS_PER_PIN;
> +}
> +
> +static struct rockchip_pin_bank rk3228_pin_banks[] = {
> + PIN_BANK(0, 32, "gpio0"),
> + PIN_BANK(1, 32, "gpio1"),
> + PIN_BANK(2, 32, "gpio2"),
> + PIN_BANK(3, 32, "gpio3"),
> +};
> +
> +static struct rockchip_pin_ctrl rk3228_pin_ctrl = {
> + .pin_banks = rk3228_pin_banks,
> + .nr_banks = ARRAY_SIZE(rk3228_pin_banks),
> + .label = "RK3228-GPIO",
> + .type = RK3288,
> + .grf_mux_offset = 0x0,
> + .iomux_routes = rk3228_mux_route_data,
> + .niomux_routes = ARRAY_SIZE(rk3228_mux_route_data),
> + .pull_calc_reg = rk3228_calc_pull,
> + .drv_calc_reg = rk3228_calc_drv,
> +};
> +
> +static const struct of_device_id rk3228_pinctrl_dt_match[] = {
> + { .compatible = "rockchip,rk3228-pinctrl",
> + .data = &rk3228_pin_ctrl },
> + {},
> +};
> +
> +static struct platform_driver rk3228_pinctrl_driver = {
> + .probe = rockchip_pctrl_probe,
> + .driver = {
> + .name = "rk3228-pinctrl",
> + .pm = &rockchip_pctrl_dev_pm_ops,
> + .of_match_table = rk3228_pinctrl_dt_match,
> + },
> +};
> +
> +static int __init rk3228_pinctrl_init(void)
> +{
> + return platform_driver_register(&rk3228_pinctrl_driver);
> +}
> +postcore_initcall(rk3228_pinctrl_init);
> +
> +MODULE_DESCRIPTION("RK3228 pin control and GPIO driver");
> +MODULE_AUTHOR("Jianqun Xu <jay.xu@...k-chips.com>");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3288.c b/drivers/pinctrl/rockchip/pinctrl-rk3288.c
> new file mode 100644
> index 000000000000..d1a37833a758
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-rk3288.c
> @@ -0,0 +1,210 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +
> +#include "pinctrl-rockchip.h"
> +
> +#define RK3288_PULL_GRF_OFFSET 0x140
> +#define RK3288_PULL_PMU_OFFSET 0x64
> +#define RK3288_PULL_BITS_PER_PIN 2
> +#define RK3288_PULL_PINS_PER_REG 8
> +#define RK3288_PULL_BANK_STRIDE 16
> +
> +#define RK3288_DRV_PMU_OFFSET 0x70
> +#define RK3288_DRV_GRF_OFFSET 0x1c0
> +#define RK3288_DRV_BITS_PER_PIN 2
> +#define RK3288_DRV_PINS_PER_REG 8
> +#define RK3288_DRV_BANK_STRIDE 16
> +
> +#define RK3288_GRF_GPIO6C_IOMUX 0x64
> +#define GPIO6C6_SEL_WRITE_ENABLE BIT(28)
> +
> +static u32 rk3288_grf_gpio6c_iomux;
> +
> +static struct rockchip_mux_route_data rk3288_mux_route_data[] = {
> + {
> + /* edphdmi_cecinoutt1 */
> + .bank_num = 7,
> + .pin = 16,
> + .func = 2,
> + .route_offset = 0x264,
> + .route_val = BIT(16 + 12) | BIT(12),
> + }, {
> + /* edphdmi_cecinout */
> + .bank_num = 7,
> + .pin = 23,
> + .func = 4,
> + .route_offset = 0x264,
> + .route_val = BIT(16 + 12),
> + },
> +};
> +
> +static void rk3288_calc_pull(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + /* The first 24 pins of the first bank are located in PMU */
> + if (bank->bank_num == 0) {
> + *regmap = info->regmap_pmu;
> + *reg = RK3288_PULL_PMU_OFFSET;
> +
> + *reg += ((pin_num / RK3288_PULL_PINS_PER_REG) * 4);
> + *bit = pin_num % RK3288_PULL_PINS_PER_REG;
> + *bit *= RK3288_PULL_BITS_PER_PIN;
> + } else {
> + *regmap = info->regmap_base;
> + *reg = RK3288_PULL_GRF_OFFSET;
> +
> + /* correct the offset, as we're starting with the 2nd bank */
> + *reg -= 0x10;
> + *reg += bank->bank_num * RK3288_PULL_BANK_STRIDE;
> + *reg += ((pin_num / RK3288_PULL_PINS_PER_REG) * 4);
> +
> + *bit = (pin_num % RK3288_PULL_PINS_PER_REG);
> + *bit *= RK3288_PULL_BITS_PER_PIN;
> + }
> +}
> +
> +static void rk3288_calc_drv(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + /* The first 24 pins of the first bank are located in PMU */
> + if (bank->bank_num == 0) {
> + *regmap = info->regmap_pmu;
> + *reg = RK3288_DRV_PMU_OFFSET;
> +
> + *reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
> + *bit = pin_num % RK3288_DRV_PINS_PER_REG;
> + *bit *= RK3288_DRV_BITS_PER_PIN;
> + } else {
> + *regmap = info->regmap_base;
> + *reg = RK3288_DRV_GRF_OFFSET;
> +
> + /* correct the offset, as we're starting with the 2nd bank */
> + *reg -= 0x10;
> + *reg += bank->bank_num * RK3288_DRV_BANK_STRIDE;
> + *reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
> +
> + *bit = (pin_num % RK3288_DRV_PINS_PER_REG);
> + *bit *= RK3288_DRV_BITS_PER_PIN;
> + }
> +}
> +
> +static struct rockchip_pin_bank rk3288_pin_banks[] = {
> + PIN_BANK_IOMUX_FLAGS(0, 24, "gpio0",
> + IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU,
> + IOMUX_UNROUTED),
> + PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1",
> + IOMUX_UNROUTED,
> + IOMUX_UNROUTED,
> + IOMUX_UNROUTED,
> + 0),
> + PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0, 0, 0,
> + IOMUX_UNROUTED),
> + PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", 0, 0, 0,
> + IOMUX_WIDTH_4BIT),
> + PIN_BANK_IOMUX_FLAGS(4, 32, "gpio4",
> + IOMUX_WIDTH_4BIT,
> + IOMUX_WIDTH_4BIT,
> + 0, 0),
> + PIN_BANK_IOMUX_FLAGS(5, 32, "gpio5",
> + IOMUX_UNROUTED,
> + 0, 0,
> + IOMUX_UNROUTED),
> + PIN_BANK_IOMUX_FLAGS(6, 32, "gpio6", 0, 0, 0,
> + IOMUX_UNROUTED),
> + PIN_BANK_IOMUX_FLAGS(7, 32, "gpio7", 0, 0,
> + IOMUX_WIDTH_4BIT,
> + IOMUX_UNROUTED),
> + PIN_BANK(8, 16, "gpio8"),
> +};
> +
> +static struct rockchip_pin_ctrl rk3288_pin_ctrl = {
> + .pin_banks = rk3288_pin_banks,
> + .nr_banks = ARRAY_SIZE(rk3288_pin_banks),
> + .label = "RK3288-GPIO",
> + .type = RK3288,
> + .grf_mux_offset = 0x0,
> + .pmu_mux_offset = 0x84,
> + .iomux_routes = rk3288_mux_route_data,
> + .niomux_routes = ARRAY_SIZE(rk3288_mux_route_data),
> + .pull_calc_reg = rk3288_calc_pull,
> + .drv_calc_reg = rk3288_calc_drv,
> +};
> +
> +static int rk3288_pinctrl_suspend(struct device *dev)
> +{
> + struct rockchip_pinctrl *info = dev_get_drvdata(dev);
> + int ret = pinctrl_force_sleep(info->pctl_dev);
> +
> + if (ret)
> + return ret;
> +
> + /*
> + * RK3288 GPIO6_C6 mux would be modified by Maskrom when resume, so save
> + * the setting here, and restore it at resume.
> + */
> + ret = regmap_read(info->regmap_base, RK3288_GRF_GPIO6C_IOMUX,
> + &rk3288_grf_gpio6c_iomux);
> + if (ret) {
> + pinctrl_force_default(info->pctl_dev);
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static int rk3288_pinctrl_resume(struct device *dev)
> +{
> + struct rockchip_pinctrl *info = dev_get_drvdata(dev);
> + int ret = regmap_write(info->regmap_base, RK3288_GRF_GPIO6C_IOMUX,
> + rk3288_grf_gpio6c_iomux |
> + GPIO6C6_SEL_WRITE_ENABLE);
> +
> + if (ret)
> + return ret;
> +
> + return pinctrl_force_default(info->pctl_dev);
> +}
> +
> +SIMPLE_DEV_PM_OPS(rk3288_pinctrl_dev_pm_ops,
> + rk3288_pinctrl_suspend,
> + rk3288_pinctrl_resume);
> +
> +static const struct of_device_id rk3288_pinctrl_dt_match[] = {
> + { .compatible = "rockchip,rk3288-pinctrl",
> + .data = &rk3288_pin_ctrl },
> + {},
> +};
> +
> +static struct platform_driver rk3288_pinctrl_driver = {
> + .probe = rockchip_pctrl_probe,
> + .driver = {
> + .name = "rk3288-pinctrl",
> + .pm = &rk3288_pinctrl_dev_pm_ops,
> + .of_match_table = rk3288_pinctrl_dt_match,
> + },
> +};
> +
> +static int __init rk3288_pinctrl_init(void)
> +{
> + return platform_driver_register(&rk3288_pinctrl_driver);
> +}
> +postcore_initcall(rk3288_pinctrl_init);
> +
> +MODULE_DESCRIPTION("RK3288 pin control and GPIO driver");
> +MODULE_AUTHOR("Jianqun Xu <jay.xu@...k-chips.com>");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3308.c b/drivers/pinctrl/rockchip/pinctrl-rk3308.c
> new file mode 100644
> index 000000000000..7c9bf608c431
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-rk3308.c
> @@ -0,0 +1,420 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +
> +#include "pinctrl-rockchip.h"
> +
> +#define RK3308_PULL_GRF_OFFSET 0xa0
> +#define RK3308_PULL_BITS_PER_PIN 2
> +#define RK3308_PULL_PINS_PER_REG 8
> +#define RK3308_PULL_BANK_STRIDE 16
> +
> +#define RK3308_DRV_GRF_OFFSET 0x100
> +#define RK3308_DRV_BITS_PER_PIN 2
> +#define RK3308_DRV_PINS_PER_REG 8
> +#define RK3308_DRV_BANK_STRIDE 16
> +
> +#define RK3308_SCHMITT_PINS_PER_REG 8
> +#define RK3308_SCHMITT_BANK_STRIDE 16
> +#define RK3308_SCHMITT_GRF_OFFSET 0x1a0
> +
> +static struct rockchip_mux_route_data rk3308_mux_route_data[] = {
> + {
> + /* rtc_clk */
> + .bank_num = 0,
> + .pin = 19,
> + .func = 1,
> + .route_offset = 0x314,
> + .route_val = BIT(16 + 0) | BIT(0),
> + }, {
> + /* uart2_rxm0 */
> + .bank_num = 1,
> + .pin = 22,
> + .func = 2,
> + .route_offset = 0x314,
> + .route_val = BIT(16 + 2) | BIT(16 + 3),
> + }, {
> + /* uart2_rxm1 */
> + .bank_num = 4,
> + .pin = 26,
> + .func = 2,
> + .route_offset = 0x314,
> + .route_val = BIT(16 + 2) | BIT(16 + 3) | BIT(2),
> + }, {
> + /* i2c3_sdam0 */
> + .bank_num = 0,
> + .pin = 15,
> + .func = 2,
> + .route_offset = 0x608,
> + .route_val = BIT(16 + 8) | BIT(16 + 9),
> + }, {
> + /* i2c3_sdam1 */
> + .bank_num = 3,
> + .pin = 12,
> + .func = 2,
> + .route_offset = 0x608,
> + .route_val = BIT(16 + 8) | BIT(16 + 9) | BIT(8),
> + }, {
> + /* i2c3_sdam2 */
> + .bank_num = 2,
> + .pin = 0,
> + .func = 3,
> + .route_offset = 0x608,
> + .route_val = BIT(16 + 8) | BIT(16 + 9) | BIT(9),
> + }, {
> + /* i2s-8ch-1-sclktxm0 */
> + .bank_num = 1,
> + .pin = 3,
> + .func = 2,
> + .route_offset = 0x308,
> + .route_val = BIT(16 + 3),
> + }, {
> + /* i2s-8ch-1-sclkrxm0 */
> + .bank_num = 1,
> + .pin = 4,
> + .func = 2,
> + .route_offset = 0x308,
> + .route_val = BIT(16 + 3),
> + }, {
> + /* i2s-8ch-1-sclktxm1 */
> + .bank_num = 1,
> + .pin = 13,
> + .func = 2,
> + .route_offset = 0x308,
> + .route_val = BIT(16 + 3) | BIT(3),
> + }, {
> + /* i2s-8ch-1-sclkrxm1 */
> + .bank_num = 1,
> + .pin = 14,
> + .func = 2,
> + .route_offset = 0x308,
> + .route_val = BIT(16 + 3) | BIT(3),
> + }, {
> + /* pdm-clkm0 */
> + .bank_num = 1,
> + .pin = 4,
> + .func = 3,
> + .route_offset = 0x308,
> + .route_val = BIT(16 + 12) | BIT(16 + 13),
> + }, {
> + /* pdm-clkm1 */
> + .bank_num = 1,
> + .pin = 14,
> + .func = 4,
> + .route_offset = 0x308,
> + .route_val = BIT(16 + 12) | BIT(16 + 13) | BIT(12),
> + }, {
> + /* pdm-clkm2 */
> + .bank_num = 2,
> + .pin = 6,
> + .func = 2,
> + .route_offset = 0x308,
> + .route_val = BIT(16 + 12) | BIT(16 + 13) | BIT(13),
> + }, {
> + /* pdm-clkm-m2 */
> + .bank_num = 2,
> + .pin = 4,
> + .func = 3,
> + .route_offset = 0x600,
> + .route_val = BIT(16 + 2) | BIT(2),
> + }, {
> + /* spi1_miso */
> + .bank_num = 3,
> + .pin = 10,
> + .func = 3,
> + .route_offset = 0x314,
> + .route_val = BIT(16 + 9),
> + }, {
> + /* spi1_miso_m1 */
> + .bank_num = 2,
> + .pin = 4,
> + .func = 2,
> + .route_offset = 0x314,
> + .route_val = BIT(16 + 9) | BIT(9),
> + }, {
> + /* owire_m0 */
> + .bank_num = 0,
> + .pin = 11,
> + .func = 3,
> + .route_offset = 0x314,
> + .route_val = BIT(16 + 10) | BIT(16 + 11),
> + }, {
> + /* owire_m1 */
> + .bank_num = 1,
> + .pin = 22,
> + .func = 7,
> + .route_offset = 0x314,
> + .route_val = BIT(16 + 10) | BIT(16 + 11) | BIT(10),
> + }, {
> + /* owire_m2 */
> + .bank_num = 2,
> + .pin = 2,
> + .func = 5,
> + .route_offset = 0x314,
> + .route_val = BIT(16 + 10) | BIT(16 + 11) | BIT(11),
> + }, {
> + /* can_rxd_m0 */
> + .bank_num = 0,
> + .pin = 11,
> + .func = 2,
> + .route_offset = 0x314,
> + .route_val = BIT(16 + 12) | BIT(16 + 13),
> + }, {
> + /* can_rxd_m1 */
> + .bank_num = 1,
> + .pin = 22,
> + .func = 5,
> + .route_offset = 0x314,
> + .route_val = BIT(16 + 12) | BIT(16 + 13) | BIT(12),
> + }, {
> + /* can_rxd_m2 */
> + .bank_num = 2,
> + .pin = 2,
> + .func = 4,
> + .route_offset = 0x314,
> + .route_val = BIT(16 + 12) | BIT(16 + 13) | BIT(13),
> + }, {
> + /* mac_rxd0_m0 */
> + .bank_num = 1,
> + .pin = 20,
> + .func = 3,
> + .route_offset = 0x314,
> + .route_val = BIT(16 + 14),
> + }, {
> + /* mac_rxd0_m1 */
> + .bank_num = 4,
> + .pin = 2,
> + .func = 2,
> + .route_offset = 0x314,
> + .route_val = BIT(16 + 14) | BIT(14),
> + }, {
> + /* uart3_rx */
> + .bank_num = 3,
> + .pin = 12,
> + .func = 4,
> + .route_offset = 0x314,
> + .route_val = BIT(16 + 15),
> + }, {
> + /* uart3_rx_m1 */
> + .bank_num = 0,
> + .pin = 17,
> + .func = 3,
> + .route_offset = 0x314,
> + .route_val = BIT(16 + 15) | BIT(15),
> + },
> +};
> +
> +static struct rockchip_mux_recalced_data rk3308_mux_recalced_data[] = {
> + {
> + .num = 1,
> + .pin = 14,
> + .reg = 0x28,
> + .bit = 12,
> + .mask = 0xf
> + }, {
> + .num = 1,
> + .pin = 15,
> + .reg = 0x2c,
> + .bit = 0,
> + .mask = 0x3
> + }, {
> + .num = 1,
> + .pin = 18,
> + .reg = 0x30,
> + .bit = 4,
> + .mask = 0xf
> + }, {
> + .num = 1,
> + .pin = 19,
> + .reg = 0x30,
> + .bit = 8,
> + .mask = 0xf
> + }, {
> + .num = 1,
> + .pin = 20,
> + .reg = 0x30,
> + .bit = 12,
> + .mask = 0xf
> + }, {
> + .num = 1,
> + .pin = 21,
> + .reg = 0x34,
> + .bit = 0,
> + .mask = 0xf
> + }, {
> + .num = 1,
> + .pin = 22,
> + .reg = 0x34,
> + .bit = 4,
> + .mask = 0xf
> + }, {
> + .num = 1,
> + .pin = 23,
> + .reg = 0x34,
> + .bit = 8,
> + .mask = 0xf
> + }, {
> + .num = 3,
> + .pin = 12,
> + .reg = 0x68,
> + .bit = 8,
> + .mask = 0xf
> + }, {
> + .num = 3,
> + .pin = 13,
> + .reg = 0x68,
> + .bit = 12,
> + .mask = 0xf
> + }, {
> + .num = 2,
> + .pin = 2,
> + .reg = 0x608,
> + .bit = 0,
> + .mask = 0x7
> + }, {
> + .num = 2,
> + .pin = 3,
> + .reg = 0x608,
> + .bit = 4,
> + .mask = 0x7
> + }, {
> + .num = 2,
> + .pin = 16,
> + .reg = 0x610,
> + .bit = 8,
> + .mask = 0x7
> + }, {
> + .num = 3,
> + .pin = 10,
> + .reg = 0x610,
> + .bit = 0,
> + .mask = 0x7
> + }, {
> + .num = 3,
> + .pin = 11,
> + .reg = 0x610,
> + .bit = 4,
> + .mask = 0x7
> + },
> +};
> +
> +static void rk3308_calc_pull(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + *regmap = info->regmap_base;
> + *reg = RK3308_PULL_GRF_OFFSET;
> + *reg += bank->bank_num * RK3308_PULL_BANK_STRIDE;
> + *reg += ((pin_num / RK3308_PULL_PINS_PER_REG) * 4);
> +
> + *bit = (pin_num % RK3308_PULL_PINS_PER_REG);
> + *bit *= RK3308_PULL_BITS_PER_PIN;
> +}
> +
> +static void rk3308_calc_drv(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + *regmap = info->regmap_base;
> + *reg = RK3308_DRV_GRF_OFFSET;
> + *reg += bank->bank_num * RK3308_DRV_BANK_STRIDE;
> + *reg += ((pin_num / RK3308_DRV_PINS_PER_REG) * 4);
> +
> + *bit = (pin_num % RK3308_DRV_PINS_PER_REG);
> + *bit *= RK3308_DRV_BITS_PER_PIN;
> +}
> +
> +static int rk3308_calc_schmitt(struct rockchip_pin_bank *bank,
> + int pin_num,
> + struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + *regmap = info->regmap_base;
> + *reg = RK3308_SCHMITT_GRF_OFFSET;
> +
> + *reg += bank->bank_num * RK3308_SCHMITT_BANK_STRIDE;
> + *reg += ((pin_num / RK3308_SCHMITT_PINS_PER_REG) * 4);
> + *bit = pin_num % RK3308_SCHMITT_PINS_PER_REG;
> +
> + return 0;
> +}
> +
> +static struct rockchip_pin_bank rk3308_pin_banks[] = {
> + PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0",
> + IOMUX_WIDTH_2BIT,
> + IOMUX_WIDTH_2BIT,
> + IOMUX_WIDTH_2BIT,
> + IOMUX_WIDTH_2BIT),
> + PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1",
> + IOMUX_WIDTH_2BIT,
> + IOMUX_WIDTH_2BIT,
> + IOMUX_WIDTH_2BIT,
> + IOMUX_WIDTH_2BIT),
> + PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2",
> + IOMUX_WIDTH_2BIT,
> + IOMUX_WIDTH_2BIT,
> + IOMUX_WIDTH_2BIT,
> + IOMUX_WIDTH_2BIT),
> + PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3",
> + IOMUX_WIDTH_2BIT,
> + IOMUX_WIDTH_2BIT,
> + IOMUX_WIDTH_2BIT,
> + IOMUX_WIDTH_2BIT),
> + PIN_BANK_IOMUX_FLAGS(4, 32, "gpio4",
> + IOMUX_WIDTH_2BIT,
> + IOMUX_WIDTH_2BIT,
> + IOMUX_WIDTH_2BIT,
> + IOMUX_WIDTH_2BIT),
> +};
> +
> +static struct rockchip_pin_ctrl rk3308_pin_ctrl = {
> + .pin_banks = rk3308_pin_banks,
> + .nr_banks = ARRAY_SIZE(rk3308_pin_banks),
> + .label = "RK3308-GPIO",
> + .type = RK3308,
> + .grf_mux_offset = 0x0,
> + .iomux_recalced = rk3308_mux_recalced_data,
> + .niomux_recalced = ARRAY_SIZE(rk3308_mux_recalced_data),
> + .iomux_routes = rk3308_mux_route_data,
> + .niomux_routes = ARRAY_SIZE(rk3308_mux_route_data),
> + .pull_calc_reg = rk3308_calc_pull,
> + .drv_calc_reg = rk3308_calc_drv,
> + .schmitt_calc_reg = rk3308_calc_schmitt,
> +};
> +
> +static const struct of_device_id rk3308_pinctrl_dt_match[] = {
> + { .compatible = "rockchip,rk3308-pinctrl",
> + .data = &rk3308_pin_ctrl },
> + {},
> +};
> +
> +static struct platform_driver rk3308_pinctrl_driver = {
> + .probe = rockchip_pctrl_probe,
> + .driver = {
> + .name = "rk3308-pinctrl",
> + .pm = &rockchip_pctrl_dev_pm_ops,
> + .of_match_table = rk3308_pinctrl_dt_match,
> + },
> +};
> +
> +static int __init rk3308_pinctrl_init(void)
> +{
> + return platform_driver_register(&rk3308_pinctrl_driver);
> +}
> +postcore_initcall(rk3308_pinctrl_init);
> +
> +MODULE_DESCRIPTION("RK3308 pin control and GPIO driver");
> +MODULE_AUTHOR("Jianqun Xu <jay.xu@...k-chips.com>");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3328.c b/drivers/pinctrl/rockchip/pinctrl-rk3328.c
> new file mode 100644
> index 000000000000..4eedddf10fbc
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-rk3328.c
> @@ -0,0 +1,272 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +
> +#include "pinctrl-rockchip.h"
> +
> +#define RK3328_PULL_GRF_OFFSET 0x100
> +#define RK3328_PULL_BITS_PER_PIN 2
> +#define RK3328_PULL_PINS_PER_REG 8
> +#define RK3328_PULL_BANK_STRIDE 16
> +
> +#define RK3328_DRV_GRF_OFFSET 0x200
> +#define RK3328_DRV_BITS_PER_PIN 2
> +#define RK3328_DRV_PINS_PER_REG 8
> +#define RK3328_DRV_BANK_STRIDE 16
> +
> +#define RK3328_SCHMITT_GRF_OFFSET 0x380
> +#define RK3328_SCHMITT_BITS_PER_PIN 1
> +#define RK3328_SCHMITT_PINS_PER_REG 16
> +#define RK3328_SCHMITT_BANK_STRIDE 8
> +
> +static struct rockchip_mux_route_data rk3328_mux_route_data[] = {
> + {
> + /* uart2dbg_rxm0 */
> + .bank_num = 1,
> + .pin = 1,
> + .func = 2,
> + .route_offset = 0x50,
> + .route_val = BIT(16) | BIT(16 + 1),
> + }, {
> + /* uart2dbg_rxm1 */
> + .bank_num = 2,
> + .pin = 1,
> + .func = 1,
> + .route_offset = 0x50,
> + .route_val = BIT(16) | BIT(16 + 1) | BIT(0),
> + }, {
> + /* gmac-m1_rxd0 */
> + .bank_num = 1,
> + .pin = 11,
> + .func = 2,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 2) | BIT(2),
> + }, {
> + /* gmac-m1-optimized_rxd3 */
> + .bank_num = 1,
> + .pin = 14,
> + .func = 2,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 10) | BIT(10),
> + }, {
> + /* pdm_sdi0m0 */
> + .bank_num = 2,
> + .pin = 19,
> + .func = 2,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 3),
> + }, {
> + /* pdm_sdi0m1 */
> + .bank_num = 1,
> + .pin = 23,
> + .func = 3,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 3) | BIT(3),
> + }, {
> + /* spi_rxdm2 */
> + .bank_num = 3,
> + .pin = 2,
> + .func = 4,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 4) | BIT(16 + 5) | BIT(5),
> + }, {
> + /* i2s2_sdim0 */
> + .bank_num = 1,
> + .pin = 24,
> + .func = 1,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 6),
> + }, {
> + /* i2s2_sdim1 */
> + .bank_num = 3,
> + .pin = 2,
> + .func = 6,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 6) | BIT(6),
> + }, {
> + /* card_iom1 */
> + .bank_num = 2,
> + .pin = 22,
> + .func = 3,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 7) | BIT(7),
> + }, {
> + /* tsp_d5m1 */
> + .bank_num = 2,
> + .pin = 16,
> + .func = 3,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 8) | BIT(8),
> + }, {
> + /* cif_data5m1 */
> + .bank_num = 2,
> + .pin = 16,
> + .func = 4,
> + .route_offset = 0x50,
> + .route_val = BIT(16 + 9) | BIT(9),
> + },
> +};
> +
> +static struct rockchip_mux_recalced_data rk3328_mux_recalced_data[] = {
> + {
> + .num = 2,
> + .pin = 8,
> + .reg = 0x24,
> + .bit = 0,
> + .mask = 0x3
> + }, {
> + .num = 2,
> + .pin = 9,
> + .reg = 0x24,
> + .bit = 2,
> + .mask = 0x3
> + }, {
> + .num = 2,
> + .pin = 10,
> + .reg = 0x24,
> + .bit = 4,
> + .mask = 0x3
> + }, {
> + .num = 2,
> + .pin = 11,
> + .reg = 0x24,
> + .bit = 6,
> + .mask = 0x3
> + }, {
> + .num = 2,
> + .pin = 12,
> + .reg = 0x24,
> + .bit = 8,
> + .mask = 0x3
> + }, {
> + .num = 2,
> + .pin = 13,
> + .reg = 0x24,
> + .bit = 10,
> + .mask = 0x3
> + }, {
> + .num = 2,
> + .pin = 14,
> + .reg = 0x24,
> + .bit = 12,
> + .mask = 0x3
> + }, {
> + .num = 2,
> + .pin = 15,
> + .reg = 0x28,
> + .bit = 0,
> + .mask = 0x7
> + }, {
> + .num = 2,
> + .pin = 23,
> + .reg = 0x30,
> + .bit = 14,
> + .mask = 0x3
> + },
> +};
> +
> +static void rk3328_calc_pull(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + *regmap = info->regmap_base;
> + *reg = RK3328_PULL_GRF_OFFSET;
> + *reg += bank->bank_num * RK3328_PULL_BANK_STRIDE;
> + *reg += ((pin_num / RK3328_PULL_PINS_PER_REG) * 4);
> +
> + *bit = (pin_num % RK3328_PULL_PINS_PER_REG);
> + *bit *= RK3328_PULL_BITS_PER_PIN;
> +}
> +
> +static void rk3328_calc_drv(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + *regmap = info->regmap_base;
> + *reg = RK3328_DRV_GRF_OFFSET;
> + *reg += bank->bank_num * RK3328_DRV_BANK_STRIDE;
> + *reg += ((pin_num / RK3328_DRV_PINS_PER_REG) * 4);
> +
> + *bit = (pin_num % RK3328_DRV_PINS_PER_REG);
> + *bit *= RK3328_DRV_BITS_PER_PIN;
> +}
> +
> +static int rk3328_calc_schmitt(struct rockchip_pin_bank *bank,
> + int pin_num,
> + struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + *regmap = info->regmap_base;
> + *reg = RK3328_SCHMITT_GRF_OFFSET;
> +
> + *reg += bank->bank_num * RK3328_SCHMITT_BANK_STRIDE;
> + *reg += ((pin_num / RK3328_SCHMITT_PINS_PER_REG) * 4);
> + *bit = pin_num % RK3328_SCHMITT_PINS_PER_REG;
> +
> + return 0;
> +}
> +
> +static struct rockchip_pin_bank rk3328_pin_banks[] = {
> + PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", 0, 0, 0, 0),
> + PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", 0, 0, 0, 0),
> + PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0,
> + IOMUX_WIDTH_3BIT,
> + IOMUX_WIDTH_3BIT,
> + 0),
> + PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3",
> + IOMUX_WIDTH_3BIT,
> + IOMUX_WIDTH_3BIT,
> + 0, 0),
> +};
> +
> +static struct rockchip_pin_ctrl rk3328_pin_ctrl = {
> + .pin_banks = rk3328_pin_banks,
> + .nr_banks = ARRAY_SIZE(rk3328_pin_banks),
> + .label = "RK3328-GPIO",
> + .type = RK3288,
> + .grf_mux_offset = 0x0,
> + .iomux_recalced = rk3328_mux_recalced_data,
> + .niomux_recalced = ARRAY_SIZE(rk3328_mux_recalced_data),
> + .iomux_routes = rk3328_mux_route_data,
> + .niomux_routes = ARRAY_SIZE(rk3328_mux_route_data),
> + .pull_calc_reg = rk3328_calc_pull,
> + .drv_calc_reg = rk3328_calc_drv,
> + .schmitt_calc_reg = rk3328_calc_schmitt,
> +};
> +
> +static const struct of_device_id rk3328_pinctrl_dt_match[] = {
> + { .compatible = "rockchip,rk3328-pinctrl",
> + .data = &rk3328_pin_ctrl },
> + {},
> +};
> +
> +static struct platform_driver rk3328_pinctrl_driver = {
> + .probe = rockchip_pctrl_probe,
> + .driver = {
> + .name = "rk3328-pinctrl",
> + .pm = &rockchip_pctrl_dev_pm_ops,
> + .of_match_table = rk3328_pinctrl_dt_match,
> + },
> +};
> +
> +static int __init rk3328_pinctrl_init(void)
> +{
> + return platform_driver_register(&rk3328_pinctrl_driver);
> +}
> +postcore_initcall(rk3328_pinctrl_init);
> +
> +MODULE_DESCRIPTION("RK3328 pin control and GPIO driver");
> +MODULE_AUTHOR("Jianqun Xu <jay.xu@...k-chips.com>");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3368.c b/drivers/pinctrl/rockchip/pinctrl-rk3368.c
> new file mode 100644
> index 000000000000..f1bc71673fd2
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-rk3368.c
> @@ -0,0 +1,125 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +
> +#include "pinctrl-rockchip.h"
> +
> +#define RK3368_PULL_GRF_OFFSET 0x100
> +#define RK3368_PULL_PMU_OFFSET 0x10
> +#define RK3368_PULL_BITS_PER_PIN 2
> +#define RK3368_PULL_PINS_PER_REG 8
> +#define RK3368_PULL_BANK_STRIDE 16
> +
> +#define RK3368_DRV_GRF_OFFSET 0x200
> +#define RK3368_DRV_PMU_OFFSET 0x20
> +#define RK3368_DRV_BITS_PER_PIN 2
> +#define RK3368_DRV_PINS_PER_REG 8
> +#define RK3368_DRV_BANK_STRIDE 16
> +
> +static void rk3368_calc_pull(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + /* The first 32 pins of the first bank are located in PMU */
> + if (bank->bank_num == 0) {
> + *regmap = info->regmap_pmu;
> + *reg = RK3368_PULL_PMU_OFFSET;
> +
> + *reg += ((pin_num / RK3368_PULL_PINS_PER_REG) * 4);
> + *bit = pin_num % RK3368_PULL_PINS_PER_REG;
> + *bit *= RK3368_PULL_BITS_PER_PIN;
> + } else {
> + *regmap = info->regmap_base;
> + *reg = RK3368_PULL_GRF_OFFSET;
> +
> + /* correct the offset, as we're starting with the second bank */
> + *reg -= 0x10;
> + *reg += bank->bank_num * RK3368_PULL_BANK_STRIDE;
> + *reg += ((pin_num / RK3368_PULL_PINS_PER_REG) * 4);
> +
> + *bit = (pin_num % RK3368_PULL_PINS_PER_REG);
> + *bit *= RK3368_PULL_BITS_PER_PIN;
> + }
> +}
> +
> +static void rk3368_calc_drv(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + /* The first 32 pins of the first bank are located in PMU */
> + if (bank->bank_num == 0) {
> + *regmap = info->regmap_pmu;
> + *reg = RK3368_DRV_PMU_OFFSET;
> +
> + *reg += ((pin_num / RK3368_DRV_PINS_PER_REG) * 4);
> + *bit = pin_num % RK3368_DRV_PINS_PER_REG;
> + *bit *= RK3368_DRV_BITS_PER_PIN;
> + } else {
> + *regmap = info->regmap_base;
> + *reg = RK3368_DRV_GRF_OFFSET;
> +
> + /* correct the offset, as we're starting with the second bank */
> + *reg -= 0x10;
> + *reg += bank->bank_num * RK3368_DRV_BANK_STRIDE;
> + *reg += ((pin_num / RK3368_DRV_PINS_PER_REG) * 4);
> +
> + *bit = (pin_num % RK3368_DRV_PINS_PER_REG);
> + *bit *= RK3368_DRV_BITS_PER_PIN;
> + }
> +}
> +
> +static struct rockchip_pin_bank rk3368_pin_banks[] = {
> + PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU),
> + PIN_BANK(1, 32, "gpio1"),
> + PIN_BANK(2, 32, "gpio2"),
> + PIN_BANK(3, 32, "gpio3"),
> +};
> +
> +static struct rockchip_pin_ctrl rk3368_pin_ctrl = {
> + .pin_banks = rk3368_pin_banks,
> + .nr_banks = ARRAY_SIZE(rk3368_pin_banks),
> + .label = "RK3368-GPIO",
> + .type = RK3368,
> + .grf_mux_offset = 0x0,
> + .pmu_mux_offset = 0x0,
> + .pull_calc_reg = rk3368_calc_pull,
> + .drv_calc_reg = rk3368_calc_drv,
> +};
> +
> +static const struct of_device_id rk3368_pinctrl_dt_match[] = {
> + { .compatible = "rockchip,rk3368-pinctrl",
> + .data = &rk3368_pin_ctrl },
> + {},
> +};
> +
> +static struct platform_driver rk3368_pinctrl_driver = {
> + .probe = rockchip_pctrl_probe,
> + .driver = {
> + .name = "rk3368-pinctrl",
> + .pm = &rockchip_pctrl_dev_pm_ops,
> + .of_match_table = rk3368_pinctrl_dt_match,
> + },
> +};
> +
> +static int __init rk3368_pinctrl_init(void)
> +{
> + return platform_driver_register(&rk3368_pinctrl_driver);
> +}
> +postcore_initcall(rk3368_pinctrl_init);
> +
> +MODULE_DESCRIPTION("RK3368 pin control and GPIO driver");
> +MODULE_AUTHOR("Jianqun Xu <jay.xu@...k-chips.com>");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3399.c b/drivers/pinctrl/rockchip/pinctrl-rk3399.c
> new file mode 100644
> index 000000000000..3c23806037f4
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-rk3399.c
> @@ -0,0 +1,195 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +
> +#include "pinctrl-rockchip.h"
> +
> +#define RK3399_PULL_GRF_OFFSET 0xe040
> +#define RK3399_PULL_PMU_OFFSET 0x40
> +#define RK3399_PULL_BITS_PER_PIN 2
> +#define RK3399_PULL_PINS_PER_REG 8
> +#define RK3399_PULL_BANK_STRIDE 16
> +
> +static struct rockchip_mux_route_data rk3399_mux_route_data[] = {
> + {
> + /* uart2dbga_rx */
> + .bank_num = 4,
> + .pin = 8,
> + .func = 2,
> + .route_offset = 0xe21c,
> + .route_val = BIT(16 + 10) | BIT(16 + 11),
> + }, {
> + /* uart2dbgb_rx */
> + .bank_num = 4,
> + .pin = 16,
> + .func = 2,
> + .route_offset = 0xe21c,
> + .route_val = BIT(16 + 10) | BIT(16 + 11) | BIT(10),
> + }, {
> + /* uart2dbgc_rx */
> + .bank_num = 4,
> + .pin = 19,
> + .func = 1,
> + .route_offset = 0xe21c,
> + .route_val = BIT(16 + 10) | BIT(16 + 11) | BIT(11),
> + }, {
> + /* pcie_clkreqn */
> + .bank_num = 2,
> + .pin = 26,
> + .func = 2,
> + .route_offset = 0xe21c,
> + .route_val = BIT(16 + 14),
> + }, {
> + /* pcie_clkreqnb */
> + .bank_num = 4,
> + .pin = 24,
> + .func = 1,
> + .route_offset = 0xe21c,
> + .route_val = BIT(16 + 14) | BIT(14),
> + },
> +};
> +
> +static void rk3399_calc_pull(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + /* The bank0:16 and bank1:32 pins are located in PMU */
> + if (bank->bank_num == 0 || bank->bank_num == 1) {
> + *regmap = info->regmap_pmu;
> + *reg = RK3399_PULL_PMU_OFFSET;
> +
> + *reg += bank->bank_num * RK3399_PULL_BANK_STRIDE;
> +
> + *reg += ((pin_num / RK3399_PULL_PINS_PER_REG) * 4);
> + *bit = pin_num % RK3399_PULL_PINS_PER_REG;
> + *bit *= RK3399_PULL_BITS_PER_PIN;
> + } else {
> + *regmap = info->regmap_base;
> + *reg = RK3399_PULL_GRF_OFFSET;
> +
> + /* correct the offset, as we're starting with the 3rd bank */
> + *reg -= 0x20;
> + *reg += bank->bank_num * RK3399_PULL_BANK_STRIDE;
> + *reg += ((pin_num / RK3399_PULL_PINS_PER_REG) * 4);
> +
> + *bit = (pin_num % RK3399_PULL_PINS_PER_REG);
> + *bit *= RK3399_PULL_BITS_PER_PIN;
> + }
> +}
> +
> +static void rk3399_calc_drv(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> + int drv_num = (pin_num / 8);
> +
> + /* The bank0:16 and bank1:32 pins are located in PMU */
> + if (bank->bank_num == 0 || bank->bank_num == 1)
> + *regmap = info->regmap_pmu;
> + else
> + *regmap = info->regmap_base;
> +
> + *reg = bank->drv[drv_num].offset;
> + if (bank->drv[drv_num].drv_type == DRV_TYPE_IO_1V8_3V0_AUTO ||
> + bank->drv[drv_num].drv_type == DRV_TYPE_IO_3V3_ONLY)
> + *bit = (pin_num % 8) * 3;
> + else
> + *bit = (pin_num % 8) * 2;
> +}
> +
> +static struct rockchip_pin_bank rk3399_pin_banks[] = {
> + PIN_BANK_IOMUX_FLAGS_DRV_FLAGS_OFFSET_PULL_FLAGS(0, 32, "gpio0",
> + IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU,
> + DRV_TYPE_IO_1V8_ONLY,
> + DRV_TYPE_IO_1V8_ONLY,
> + DRV_TYPE_IO_DEFAULT,
> + DRV_TYPE_IO_DEFAULT,
> + 0x80,
> + 0x88,
> + -1,
> + -1,
> + PULL_TYPE_IO_1V8_ONLY,
> + PULL_TYPE_IO_1V8_ONLY,
> + PULL_TYPE_IO_DEFAULT,
> + PULL_TYPE_IO_DEFAULT),
> + PIN_BANK_IOMUX_DRV_FLAGS_OFFSET(1, 32, "gpio1", IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU,
> + DRV_TYPE_IO_1V8_OR_3V0,
> + DRV_TYPE_IO_1V8_OR_3V0,
> + DRV_TYPE_IO_1V8_OR_3V0,
> + DRV_TYPE_IO_1V8_OR_3V0,
> + 0xa0,
> + 0xa8,
> + 0xb0,
> + 0xb8),
> + PIN_BANK_DRV_FLAGS_PULL_FLAGS(2, 32, "gpio2", DRV_TYPE_IO_1V8_OR_3V0,
> + DRV_TYPE_IO_1V8_OR_3V0,
> + DRV_TYPE_IO_1V8_ONLY,
> + DRV_TYPE_IO_1V8_ONLY,
> + PULL_TYPE_IO_DEFAULT,
> + PULL_TYPE_IO_DEFAULT,
> + PULL_TYPE_IO_1V8_ONLY,
> + PULL_TYPE_IO_1V8_ONLY),
> + PIN_BANK_DRV_FLAGS(3, 32, "gpio3", DRV_TYPE_IO_3V3_ONLY,
> + DRV_TYPE_IO_3V3_ONLY,
> + DRV_TYPE_IO_3V3_ONLY,
> + DRV_TYPE_IO_1V8_OR_3V0),
> + PIN_BANK_DRV_FLAGS(4, 32, "gpio4", DRV_TYPE_IO_1V8_OR_3V0,
> + DRV_TYPE_IO_1V8_3V0_AUTO,
> + DRV_TYPE_IO_1V8_OR_3V0,
> + DRV_TYPE_IO_1V8_OR_3V0),
> +};
> +
> +static struct rockchip_pin_ctrl rk3399_pin_ctrl = {
> + .pin_banks = rk3399_pin_banks,
> + .nr_banks = ARRAY_SIZE(rk3399_pin_banks),
> + .label = "RK3399-GPIO",
> + .type = RK3399,
> + .grf_mux_offset = 0xe000,
> + .pmu_mux_offset = 0x0,
> + .grf_drv_offset = 0xe100,
> + .pmu_drv_offset = 0x80,
> + .iomux_routes = rk3399_mux_route_data,
> + .niomux_routes = ARRAY_SIZE(rk3399_mux_route_data),
> + .pull_calc_reg = rk3399_calc_pull,
> + .drv_calc_reg = rk3399_calc_drv,
> +};
> +
> +static const struct of_device_id rk3399_pinctrl_dt_match[] = {
> + { .compatible = "rockchip,rk3399-pinctrl",
> + .data = &rk3399_pin_ctrl },
> + {},
> +};
> +
> +static struct platform_driver rk3399_pinctrl_driver = {
> + .probe = rockchip_pctrl_probe,
> + .driver = {
> + .name = "rk3399-pinctrl",
> + .pm = &rockchip_pctrl_dev_pm_ops,
> + .of_match_table = rk3399_pinctrl_dt_match,
> + },
> +};
> +
> +static int __init rk3399_pinctrl_init(void)
> +{
> + return platform_driver_register(&rk3399_pinctrl_driver);
> +}
> +postcore_initcall(rk3399_pinctrl_init);
> +
> +MODULE_DESCRIPTION("RK3399 pin control and GPIO driver");
> +MODULE_AUTHOR("Jianqun Xu <jay.xu@...k-chips.com>");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/pinctrl/rockchip/pinctrl-rockchip.c b/drivers/pinctrl/rockchip/pinctrl-rockchip.c
> new file mode 100644
> index 000000000000..16b013026fda
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-rockchip.c
> @@ -0,0 +1,2043 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + *
> + * Pinctrl driver for Rockchip SoCs
> + *
> + * Copyright (c) 2013 MundoReader S.L.
> + * Author: Heiko Stuebner <heiko@...ech.de>
> + *
> + * With some ideas taken from pinctrl-samsung:
> + * Copyright (c) 2012 Samsung Electronics Co., Ltd.
> + * http://www.samsung.com
> + * Copyright (c) 2012 Linaro Ltd
> + * http://www.linaro.org
> + *
> + * and pinctrl-at91:
> + * Copyright (C) 2011-2012 Jean-Christophe
> + * PLAGNIOL-VILLARD <plagnioj@...osoft.com>
> + */
> +
> +#include "pinctrl-rockchip.h"
> +
> +/* GPIO control registers */
> +#define GPIO_SWPORT_DR 0x00
> +#define GPIO_SWPORT_DDR 0x04
> +#define GPIO_INTEN 0x30
> +#define GPIO_INTMASK 0x34
> +#define GPIO_INTTYPE_LEVEL 0x38
> +#define GPIO_INT_POLARITY 0x3c
> +#define GPIO_INT_STATUS 0x40
> +#define GPIO_INT_RAWSTATUS 0x44
> +#define GPIO_DEBOUNCE 0x48
> +#define GPIO_PORTS_EOI 0x4c
> +#define GPIO_EXT_PORT 0x50
> +#define GPIO_LS_SYNC 0x60
> +
> +#define RK3188_PULL_BITS_PER_PIN 2
> +#define RK3288_DRV_BITS_PER_PIN 2
> +#define RK3399_DRV_3BITS_PER_PIN 3
> +
> +static struct regmap_config rockchip_regmap_config = {
> + .reg_bits = 32,
> + .val_bits = 32,
> + .reg_stride = 4,
> +};
> +
> +static inline const struct rockchip_pin_group *
> +pinctrl_name_to_group(const struct rockchip_pinctrl *info,
> + const char *name)
> +{
> + int i;
> +
> + for (i = 0; i < info->ngroups; i++) {
> + if (!strcmp(info->groups[i].name, name))
> + return &info->groups[i];
> + }
> +
> + return NULL;
> +}
> +
> +/*
> + * given a pin number that is local to a pin controller, find out the pin bank
> + * and the register base of the pin bank.
> + */
> +static struct rockchip_pin_bank *pin_to_bank(struct rockchip_pinctrl *info,
> + unsigned int pin)
> +{
> + struct rockchip_pin_bank *b = info->ctrl->pin_banks;
> +
> + while (pin >= (b->pin_base + b->nr_pins))
> + b++;
> +
> + return b;
> +}
> +
> +static struct rockchip_pin_bank *
> +bank_num_to_bank(struct rockchip_pinctrl *info, unsigned int num)
> +{
> + struct rockchip_pin_bank *b = info->ctrl->pin_banks;
> + int i;
> +
> + for (i = 0; i < info->ctrl->nr_banks; i++, b++) {
> + if (b->bank_num == num)
> + return b;
> + }
> +
> + return ERR_PTR(-EINVAL);
> +}
> +
> +/*
> + * Pinctrl_ops handling
> + */
> +
> +static int rockchip_get_groups_count(struct pinctrl_dev *pctldev)
> +{
> + struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
> +
> + return info->ngroups;
> +}
> +
> +static const char *rockchip_get_group_name(struct pinctrl_dev *pctldev,
> + unsigned int selector)
> +{
> + struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
> +
> + return info->groups[selector].name;
> +}
> +
> +static int rockchip_get_group_pins(struct pinctrl_dev *pctldev,
> + unsigned int selector,
> + const unsigned int **pins,
> + unsigned int *npins)
> +{
> + struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
> +
> + if (selector >= info->ngroups)
> + return -EINVAL;
> +
> + *pins = info->groups[selector].pins;
> + *npins = info->groups[selector].npins;
> +
> + return 0;
> +}
> +
> +static int rockchip_dt_node_to_map(struct pinctrl_dev *pctldev,
> + struct device_node *np,
> + struct pinctrl_map **map,
> + unsigned int *num_maps)
> +{
> + struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
> + const struct rockchip_pin_group *grp;
> + struct pinctrl_map *new_map;
> + struct device_node *parent;
> + int map_num = 1;
> + int i;
> +
> + /*
> + * first find the group of this node and check if we need to create
> + * config maps for pins
> + */
> + grp = pinctrl_name_to_group(info, np->name);
> + if (!grp) {
> + dev_err(info->dev, "unable to find group for node %pOFn\n",
> + np);
> + return -EINVAL;
> + }
> +
> + map_num += grp->npins;
> + new_map = devm_kcalloc(pctldev->dev, map_num, sizeof(*new_map),
> + GFP_KERNEL);
> + if (!new_map)
> + return -ENOMEM;
> +
> + *map = new_map;
> + *num_maps = map_num;
> +
> + /* create mux map */
> + parent = of_get_parent(np);
> + if (!parent) {
> + devm_kfree(pctldev->dev, new_map);
> + return -EINVAL;
> + }
> + new_map[0].type = PIN_MAP_TYPE_MUX_GROUP;
> + new_map[0].data.mux.function = parent->name;
> + new_map[0].data.mux.group = np->name;
> + of_node_put(parent);
> +
> + /* create config map */
> + new_map++;
> + for (i = 0; i < grp->npins; i++) {
> + new_map[i].type = PIN_MAP_TYPE_CONFIGS_PIN;
> + new_map[i].data.configs.group_or_pin =
> + pin_get_name(pctldev, grp->pins[i]);
> + new_map[i].data.configs.configs = grp->data[i].configs;
> + new_map[i].data.configs.num_configs = grp->data[i].nconfigs;
> + }
> +
> + dev_dbg(pctldev->dev, "maps: function %s group %s num %d\n",
> + (*map)->data.mux.function, (*map)->data.mux.group, map_num);
> +
> + return 0;
> +}
> +
> +static void rockchip_dt_free_map(struct pinctrl_dev *pctldev,
> + struct pinctrl_map *map,
> + unsigned int num_maps)
> +{
> +}
> +
> +static const struct pinctrl_ops rockchip_pctrl_ops = {
> + .get_groups_count = rockchip_get_groups_count,
> + .get_group_name = rockchip_get_group_name,
> + .get_group_pins = rockchip_get_group_pins,
> + .dt_node_to_map = rockchip_dt_node_to_map,
> + .dt_free_map = rockchip_dt_free_map,
> +};
> +
> +static void rockchip_get_recalced_mux(struct rockchip_pin_bank *bank, int pin,
> + int *reg, u8 *bit, int *mask)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> + struct rockchip_pin_ctrl *ctrl = info->ctrl;
> + struct rockchip_mux_recalced_data *data;
> + int i;
> +
> + for (i = 0; i < ctrl->niomux_recalced; i++) {
> + data = &ctrl->iomux_recalced[i];
> + if (data->num == bank->bank_num &&
> + data->pin == pin)
> + break;
> + }
> +
> + if (i >= ctrl->niomux_recalced)
> + return;
> +
> + *reg = data->reg;
> + *mask = data->mask;
> + *bit = data->bit;
> +}
> +
> +static bool rockchip_get_mux_route(struct rockchip_pin_bank *bank, int pin,
> + int mux, u32 *loc, u32 *reg, u32 *value)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> + struct rockchip_pin_ctrl *ctrl = info->ctrl;
> + struct rockchip_mux_route_data *data;
> + int i;
> +
> + for (i = 0; i < ctrl->niomux_routes; i++) {
> + data = &ctrl->iomux_routes[i];
> + if (data->bank_num == bank->bank_num &&
> + data->pin == pin && data->func == mux)
> + break;
> + }
> +
> + if (i >= ctrl->niomux_routes)
> + return false;
> +
> + *loc = data->route_location;
> + *reg = data->route_offset;
> + *value = data->route_val;
> +
> + return true;
> +}
> +
> +static int rockchip_get_mux(struct rockchip_pin_bank *bank, int pin)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> + int iomux_num = (pin / 8);
> + struct regmap *regmap;
> + unsigned int val;
> + int reg, ret, mask, mux_type;
> + u8 bit;
> +
> + if (iomux_num > 3)
> + return -EINVAL;
> +
> + if (bank->iomux[iomux_num].type & IOMUX_UNROUTED) {
> + dev_err(info->dev, "pin %d is unrouted\n", pin);
> + return -EINVAL;
> + }
> +
> + if (bank->iomux[iomux_num].type & IOMUX_GPIO_ONLY)
> + return RK_FUNC_GPIO;
> +
> + regmap = (bank->iomux[iomux_num].type & IOMUX_SOURCE_PMU)
> + ? info->regmap_pmu : info->regmap_base;
> +
> + /* get basic quadrupel of mux registers and the correct reg inside */
> + mux_type = bank->iomux[iomux_num].type;
> + reg = bank->iomux[iomux_num].offset;
> + if (mux_type & IOMUX_WIDTH_4BIT) {
> + if ((pin % 8) >= 4)
> + reg += 0x4;
> + bit = (pin % 4) * 4;
> + mask = 0xf;
> + } else if (mux_type & IOMUX_WIDTH_3BIT) {
> + if ((pin % 8) >= 5)
> + reg += 0x4;
> + bit = (pin % 8 % 5) * 3;
> + mask = 0x7;
> + } else {
> + bit = (pin % 8) * 2;
> + mask = 0x3;
> + }
> +
> + if (bank->recalced_mask & BIT(pin))
> + rockchip_get_recalced_mux(bank, pin, ®, &bit, &mask);
> +
> + ret = regmap_read(regmap, reg, &val);
> + if (ret)
> + return ret;
> +
> + return ((val >> bit) & mask);
> +}
> +
> +static int rockchip_verify_mux(struct rockchip_pin_bank *bank,
> + int pin, int mux)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> + int iomux_num = (pin / 8);
> +
> + if (iomux_num > 3)
> + return -EINVAL;
> +
> + if (bank->iomux[iomux_num].type & IOMUX_UNROUTED) {
> + dev_err(info->dev, "pin %d is unrouted\n", pin);
> + return -EINVAL;
> + }
> +
> + if (bank->iomux[iomux_num].type & IOMUX_GPIO_ONLY) {
> + if (mux != RK_FUNC_GPIO) {
> + dev_err(info->dev,
> + "pin %d only supports a gpio mux\n", pin);
> + return -ENOTSUPP;
> + }
> + }
> +
> + return 0;
> +}
> +
> +/*
> + * Set a new mux function for a pin.
> + *
> + * The register is divided into the upper and lower 16 bit. When changing
> + * a value, the previous register value is not read and changed. Instead
> + * it seems the changed bits are marked in the upper 16 bit, while the
> + * changed value gets set in the same offset in the lower 16 bit.
> + * All pin settings seem to be 2 bit wide in both the upper and lower
> + * parts.
> + * @bank: pin bank to change
> + * @pin: pin to change
> + * @mux: new mux function to set
> + */
> +static int rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> + int iomux_num = (pin / 8);
> + struct regmap *regmap;
> + int reg, ret, mask, mux_type;
> + u8 bit;
> + u32 data, rmask, route_location, route_reg, route_val;
> +
> + ret = rockchip_verify_mux(bank, pin, mux);
> + if (ret < 0)
> + return ret;
> +
> + if (bank->iomux[iomux_num].type & IOMUX_GPIO_ONLY)
> + return 0;
> +
> + dev_dbg(info->dev, "setting mux of GPIO%d-%d to %d\n",
> + bank->bank_num, pin, mux);
> +
> + regmap = (bank->iomux[iomux_num].type & IOMUX_SOURCE_PMU)
> + ? info->regmap_pmu : info->regmap_base;
> +
> + /* get basic quadrupel of mux registers and the correct reg inside */
> + mux_type = bank->iomux[iomux_num].type;
> + reg = bank->iomux[iomux_num].offset;
> + if (mux_type & IOMUX_WIDTH_4BIT) {
> + if ((pin % 8) >= 4)
> + reg += 0x4;
> + bit = (pin % 4) * 4;
> + mask = 0xf;
> + } else if (mux_type & IOMUX_WIDTH_3BIT) {
> + if ((pin % 8) >= 5)
> + reg += 0x4;
> + bit = (pin % 8 % 5) * 3;
> + mask = 0x7;
> + } else {
> + bit = (pin % 8) * 2;
> + mask = 0x3;
> + }
> +
> + if (bank->recalced_mask & BIT(pin))
> + rockchip_get_recalced_mux(bank, pin, ®, &bit, &mask);
> +
> + if (bank->route_mask & BIT(pin)) {
> + if (rockchip_get_mux_route(bank, pin, mux, &route_location,
> + &route_reg, &route_val)) {
> + struct regmap *route_regmap = regmap;
> +
> + /* handle special locations */
> + switch (route_location) {
> + case ROCKCHIP_ROUTE_PMU:
> + route_regmap = info->regmap_pmu;
> + break;
> + case ROCKCHIP_ROUTE_GRF:
> + route_regmap = info->regmap_base;
> + break;
> + }
> +
> + ret = regmap_write(route_regmap, route_reg, route_val);
> + if (ret)
> + return ret;
> + }
> + }
> +
> + data = (mask << (bit + 16));
> + rmask = data | (data >> 16);
> + data |= (mux & mask) << bit;
> + ret = regmap_update_bits(regmap, reg, rmask, data);
> +
> + return ret;
> +}
> +
> +static int rockchip_perpin_drv_list[DRV_TYPE_MAX][8] = {
> + { 2, 4, 8, 12, -1, -1, -1, -1 },
> + { 3, 6, 9, 12, -1, -1, -1, -1 },
> + { 5, 10, 15, 20, -1, -1, -1, -1 },
> + { 4, 6, 8, 10, 12, 14, 16, 18 },
> + { 4, 7, 10, 13, 16, 19, 22, 26 }
> +};
> +
> +static int rockchip_get_drive_perpin(struct rockchip_pin_bank *bank,
> + int pin_num)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> + struct rockchip_pin_ctrl *ctrl = info->ctrl;
> + struct regmap *regmap;
> + int reg, ret;
> + u32 data, temp, rmask_bits;
> + u8 bit;
> + int drv_type = bank->drv[pin_num / 8].drv_type;
> +
> + ctrl->drv_calc_reg(bank, pin_num, ®map, ®, &bit);
> +
> + switch (drv_type) {
> + case DRV_TYPE_IO_1V8_3V0_AUTO:
> + case DRV_TYPE_IO_3V3_ONLY:
> + rmask_bits = RK3399_DRV_3BITS_PER_PIN;
> + switch (bit) {
> + case 0 ... 12:
> + /* regular case, nothing to do */
> + break;
> + case 15:
> + /*
> + * drive-strength offset is special, as it is
> + * spread over 2 registers
> + */
> + ret = regmap_read(regmap, reg, &data);
> + if (ret)
> + return ret;
> +
> + ret = regmap_read(regmap, reg + 0x4, &temp);
> + if (ret)
> + return ret;
> +
> + /*
> + * the bit data[15] contains bit 0 of the value
> + * while temp[1:0] contains bits 2 and 1
> + */
> + data >>= 15;
> + temp &= 0x3;
> + temp <<= 1;
> + data |= temp;
> +
> + return rockchip_perpin_drv_list[drv_type][data];
> + case 18 ... 21:
> + /* setting fully enclosed in the second register */
> + reg += 4;
> + bit -= 16;
> + break;
> + default:
> + dev_err(info->dev, "unsupported bit: %d for pinctrl drive type: %d\n",
> + bit, drv_type);
> + return -EINVAL;
> + }
> +
> + break;
> + case DRV_TYPE_IO_DEFAULT:
> + case DRV_TYPE_IO_1V8_OR_3V0:
> + case DRV_TYPE_IO_1V8_ONLY:
> + rmask_bits = RK3288_DRV_BITS_PER_PIN;
> + break;
> + default:
> + dev_err(info->dev, "unsupported pinctrl drive type: %d\n",
> + drv_type);
> + return -EINVAL;
> + }
> +
> + ret = regmap_read(regmap, reg, &data);
> + if (ret)
> + return ret;
> +
> + data >>= bit;
> + data &= (1 << rmask_bits) - 1;
> +
> + return rockchip_perpin_drv_list[drv_type][data];
> +}
> +
> +static int rockchip_set_drive_perpin(struct rockchip_pin_bank *bank,
> + int pin_num, int strength)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> + struct rockchip_pin_ctrl *ctrl = info->ctrl;
> + struct regmap *regmap;
> + int reg, ret, i;
> + u32 data, rmask, rmask_bits, temp;
> + u8 bit;
> + int drv_type = bank->drv[pin_num / 8].drv_type;
> +
> + dev_dbg(info->dev, "setting drive of GPIO%d-%d to %d\n",
> + bank->bank_num, pin_num, strength);
> +
> + ctrl->drv_calc_reg(bank, pin_num, ®map, ®, &bit);
> +
> + ret = -EINVAL;
> + for (i = 0; i < ARRAY_SIZE(rockchip_perpin_drv_list[drv_type]); i++) {
> + if (rockchip_perpin_drv_list[drv_type][i] == strength) {
> + ret = i;
> + break;
> + } else if (rockchip_perpin_drv_list[drv_type][i] < 0) {
> + ret = rockchip_perpin_drv_list[drv_type][i];
> + break;
> + }
> + }
> +
> + if (ret < 0) {
> + dev_err(info->dev, "unsupported driver strength %d\n",
> + strength);
> + return ret;
> + }
> +
> + switch (drv_type) {
> + case DRV_TYPE_IO_1V8_3V0_AUTO:
> + case DRV_TYPE_IO_3V3_ONLY:
> + rmask_bits = RK3399_DRV_3BITS_PER_PIN;
> + switch (bit) {
> + case 0 ... 12:
> + /* regular case, nothing to do */
> + break;
> + case 15:
> + /*
> + * drive-strength offset is special, as it is spread
> + * over 2 registers, the bit data[15] contains bit 0
> + * of the value while temp[1:0] contains bits 2 and 1
> + */
> + data = (ret & 0x1) << 15;
> + temp = (ret >> 0x1) & 0x3;
> +
> + rmask = BIT(15) | BIT(31);
> + data |= BIT(31);
> + ret = regmap_update_bits(regmap, reg, rmask, data);
> + if (ret)
> + return ret;
> +
> + rmask = 0x3 | (0x3 << 16);
> + temp |= (0x3 << 16);
> + reg += 0x4;
> + ret = regmap_update_bits(regmap, reg, rmask, temp);
> +
> + return ret;
> + case 18 ... 21:
> + /* setting fully enclosed in the second register */
> + reg += 4;
> + bit -= 16;
> + break;
> + default:
> + dev_err(info->dev, "unsupported bit: %d for pinctrl drive type: %d\n",
> + bit, drv_type);
> + return -EINVAL;
> + }
> + break;
> + case DRV_TYPE_IO_DEFAULT:
> + case DRV_TYPE_IO_1V8_OR_3V0:
> + case DRV_TYPE_IO_1V8_ONLY:
> + rmask_bits = RK3288_DRV_BITS_PER_PIN;
> + break;
> + default:
> + dev_err(info->dev, "unsupported pinctrl drive type: %d\n",
> + drv_type);
> + return -EINVAL;
> + }
> +
> + /* enable the write to the equivalent lower bits */
> + data = ((1 << rmask_bits) - 1) << (bit + 16);
> + rmask = data | (data >> 16);
> + data |= (ret << bit);
> +
> + ret = regmap_update_bits(regmap, reg, rmask, data);
> +
> + return ret;
> +}
> +
> +static int rockchip_pull_list[PULL_TYPE_MAX][4] = {
> + {
> + PIN_CONFIG_BIAS_DISABLE,
> + PIN_CONFIG_BIAS_PULL_UP,
> + PIN_CONFIG_BIAS_PULL_DOWN,
> + PIN_CONFIG_BIAS_BUS_HOLD
> + },
> + {
> + PIN_CONFIG_BIAS_DISABLE,
> + PIN_CONFIG_BIAS_PULL_DOWN,
> + PIN_CONFIG_BIAS_DISABLE,
> + PIN_CONFIG_BIAS_PULL_UP
> + },
> +};
> +
> +static int rockchip_get_pull(struct rockchip_pin_bank *bank, int pin_num)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> + struct rockchip_pin_ctrl *ctrl = info->ctrl;
> + struct regmap *regmap;
> + int reg, ret, pull_type;
> + u8 bit;
> + u32 data;
> +
> + /* rk3066b does support any pulls */
> + if (ctrl->type == RK3066B)
> + return PIN_CONFIG_BIAS_DISABLE;
> +
> + ctrl->pull_calc_reg(bank, pin_num, ®map, ®, &bit);
> +
> + ret = regmap_read(regmap, reg, &data);
> + if (ret)
> + return ret;
> +
> + switch (ctrl->type) {
> + case RK2928:
> + case RK3128:
> + return !(data & BIT(bit))
> + ? PIN_CONFIG_BIAS_PULL_PIN_DEFAULT
> + : PIN_CONFIG_BIAS_DISABLE;
> + case PX30:
> + case RV1108:
> + case RK3188:
> + case RK3288:
> + case RK3308:
> + case RK3368:
> + case RK3399:
> + pull_type = bank->pull_type[pin_num / 8];
> + data >>= bit;
> + data &= (1 << RK3188_PULL_BITS_PER_PIN) - 1;
> +
> + return rockchip_pull_list[pull_type][data];
> + default:
> + dev_err(info->dev, "unsupported pinctrl type\n");
> + return -EINVAL;
> + };
> +}
> +
> +static int rockchip_set_pull(struct rockchip_pin_bank *bank,
> + int pin_num, int pull)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> + struct rockchip_pin_ctrl *ctrl = info->ctrl;
> + struct regmap *regmap;
> + int reg, ret, i, pull_type;
> + u8 bit;
> + u32 data, rmask;
> +
> + dev_dbg(info->dev, "setting pull of GPIO%d-%d to %d\n",
> + bank->bank_num, pin_num, pull);
> +
> + /* rk3066b does support any pulls */
> + if (ctrl->type == RK3066B)
> + return pull ? -EINVAL : 0;
> +
> + ctrl->pull_calc_reg(bank, pin_num, ®map, ®, &bit);
> +
> + switch (ctrl->type) {
> + case RK2928:
> + case RK3128:
> + data = BIT(bit + 16);
> + if (pull == PIN_CONFIG_BIAS_DISABLE)
> + data |= BIT(bit);
> + ret = regmap_write(regmap, reg, data);
> + break;
> + case PX30:
> + case RV1108:
> + case RK3188:
> + case RK3288:
> + case RK3308:
> + case RK3368:
> + case RK3399:
> + pull_type = bank->pull_type[pin_num / 8];
> + ret = -EINVAL;
> + for (i = 0; i < ARRAY_SIZE(rockchip_pull_list[pull_type]);
> + i++) {
> + if (rockchip_pull_list[pull_type][i] == pull) {
> + ret = i;
> + break;
> + }
> + }
> +
> + if (ret < 0) {
> + dev_err(info->dev, "unsupported pull setting %d\n",
> + pull);
> + return ret;
> + }
> +
> + /* enable the write to the equivalent lower bits */
> + data = ((1 << RK3188_PULL_BITS_PER_PIN) - 1) << (bit + 16);
> + rmask = data | (data >> 16);
> + data |= (ret << bit);
> +
> + ret = regmap_update_bits(regmap, reg, rmask, data);
> + break;
> + default:
> + dev_err(info->dev, "unsupported pinctrl type\n");
> + return -EINVAL;
> + }
> +
> + return ret;
> +}
> +
> +static int rockchip_get_schmitt(struct rockchip_pin_bank *bank, int pin_num)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> + struct rockchip_pin_ctrl *ctrl = info->ctrl;
> + struct regmap *regmap;
> + int reg, ret;
> + u8 bit;
> + u32 data;
> +
> + ret = ctrl->schmitt_calc_reg(bank, pin_num, ®map, ®, &bit);
> + if (ret)
> + return ret;
> +
> + ret = regmap_read(regmap, reg, &data);
> + if (ret)
> + return ret;
> +
> + data >>= bit;
> + return data & 0x1;
> +}
> +
> +static int rockchip_set_schmitt(struct rockchip_pin_bank *bank,
> + int pin_num, int enable)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> + struct rockchip_pin_ctrl *ctrl = info->ctrl;
> + struct regmap *regmap;
> + int reg, ret;
> + u8 bit;
> + u32 data, rmask;
> +
> + dev_dbg(info->dev, "setting input schmitt of GPIO%d-%d to %d\n",
> + bank->bank_num, pin_num, enable);
> +
> + ret = ctrl->schmitt_calc_reg(bank, pin_num, ®map, ®, &bit);
> + if (ret)
> + return ret;
> +
> + /* enable the write to the equivalent lower bits */
> + data = BIT(bit + 16) | (enable << bit);
> + rmask = BIT(bit + 16) | BIT(bit);
> +
> + return regmap_update_bits(regmap, reg, rmask, data);
> +}
> +
> +/*
> + * Pinmux_ops handling
> + */
> +
> +static int rockchip_pmx_get_funcs_count(struct pinctrl_dev *pctldev)
> +{
> + struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
> +
> + return info->nfunctions;
> +}
> +
> +static const char *rockchip_pmx_get_func_name(struct pinctrl_dev *pctldev,
> + unsigned int selector)
> +{
> + struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
> +
> + return info->functions[selector].name;
> +}
> +
> +static int rockchip_pmx_get_groups(struct pinctrl_dev *pctldev,
> + unsigned int selector,
> + const char * const **groups,
> + unsigned int * const num_groups)
> +{
> + struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
> +
> + *groups = info->functions[selector].groups;
> + *num_groups = info->functions[selector].ngroups;
> +
> + return 0;
> +}
> +
> +static int rockchip_pmx_set(struct pinctrl_dev *pctldev, unsigned int selector,
> + unsigned int group)
> +{
> + struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
> + const unsigned int *pins = info->groups[group].pins;
> + const struct rockchip_pin_config *data = info->groups[group].data;
> + struct rockchip_pin_bank *bank;
> + int cnt, ret = 0;
> +
> + dev_dbg(info->dev, "enable function %s group %s\n",
> + info->functions[selector].name, info->groups[group].name);
> +
> + /*
> + * for each pin in the pin group selected, program the corresponding
> + * pin function number in the config register.
> + */
> + for (cnt = 0; cnt < info->groups[group].npins; cnt++) {
> + bank = pin_to_bank(info, pins[cnt]);
> + ret = rockchip_set_mux(bank, pins[cnt] - bank->pin_base,
> + data[cnt].func);
> + if (ret)
> + break;
> + }
> +
> + if (ret) {
> + /* revert the already done pin settings */
> + for (cnt--; cnt >= 0; cnt--)
> + rockchip_set_mux(bank, pins[cnt] - bank->pin_base, 0);
> +
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static int rockchip_gpio_get_direction(struct gpio_chip *chip,
> + unsigned int offset)
> +{
> + struct rockchip_pin_bank *bank = gpiochip_get_data(chip);
> + u32 data;
> + int ret;
> +
> + ret = clk_enable(bank->clk);
> + if (ret < 0) {
> + dev_err(bank->drvdata->dev,
> + "failed to enable clock for bank %s\n", bank->name);
> + return ret;
> + }
> + data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
> + clk_disable(bank->clk);
> +
> + return !(data & BIT(offset));
> +}
> +
> +/*
> + * The calls to gpio_direction_output() and gpio_direction_input()
> + * leads to this function call (via the pinctrl_gpio_direction_{input|output}()
> + * function called from the gpiolib interface).
> + */
> +static int _rockchip_pmx_gpio_set_direction(struct gpio_chip *chip,
> + int pin, bool input)
> +{
> + struct rockchip_pin_bank *bank;
> + int ret;
> + unsigned long flags;
> + u32 data;
> +
> + bank = gpiochip_get_data(chip);
> +
> + ret = rockchip_set_mux(bank, pin, RK_FUNC_GPIO);
> + if (ret < 0)
> + return ret;
> +
> + clk_enable(bank->clk);
> + raw_spin_lock_irqsave(&bank->slock, flags);
> +
> + data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
> + /* set bit to 1 for output, 0 for input */
> + if (!input)
> + data |= BIT(pin);
> + else
> + data &= ~BIT(pin);
> + writel_relaxed(data, bank->reg_base + GPIO_SWPORT_DDR);
> +
> + raw_spin_unlock_irqrestore(&bank->slock, flags);
> + clk_disable(bank->clk);
> +
> + return 0;
> +}
> +
> +static int rockchip_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
> + struct pinctrl_gpio_range *range,
> + unsigned int offset, bool input)
> +{
> + struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
> + struct gpio_chip *chip;
> + int pin;
> +
> + chip = range->gc;
> + pin = offset - chip->base;
> + dev_dbg(info->dev, "gpio_direction for pin %u as %s-%d to %s\n",
> + offset, range->name, pin, input ? "input" : "output");
> +
> + return _rockchip_pmx_gpio_set_direction(chip, offset - chip->base,
> + input);
> +}
> +
> +static const struct pinmux_ops rockchip_pmx_ops = {
> + .get_functions_count = rockchip_pmx_get_funcs_count,
> + .get_function_name = rockchip_pmx_get_func_name,
> + .get_function_groups = rockchip_pmx_get_groups,
> + .set_mux = rockchip_pmx_set,
> + .gpio_set_direction = rockchip_pmx_gpio_set_direction,
> +};
> +
> +/*
> + * Pinconf_ops handling
> + */
> +
> +static bool rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl *ctrl,
> + enum pin_config_param pull)
> +{
> + switch (ctrl->type) {
> + case RK2928:
> + case RK3128:
> + return (pull == PIN_CONFIG_BIAS_PULL_PIN_DEFAULT ||
> + pull == PIN_CONFIG_BIAS_DISABLE);
> + case RK3066B:
> + return pull ? false : true;
> + case PX30:
> + case RV1108:
> + case RK3188:
> + case RK3288:
> + case RK3308:
> + case RK3368:
> + case RK3399:
> + return (pull != PIN_CONFIG_BIAS_PULL_PIN_DEFAULT);
> + }
> +
> + return false;
> +}
> +
> +static void rockchip_gpio_set(struct gpio_chip *gc, unsigned int offset,
> + int value);
> +static int rockchip_gpio_get(struct gpio_chip *gc, unsigned int offset);
> +
> +/* set the pin config settings for a specified pin */
> +static int rockchip_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
> + unsigned long *configs,
> + unsigned int num_configs)
> +{
> + struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
> + struct rockchip_pin_bank *bank = pin_to_bank(info, pin);
> + enum pin_config_param param;
> + u32 arg;
> + int i;
> + int rc;
> +
> + for (i = 0; i < num_configs; i++) {
> + param = pinconf_to_config_param(configs[i]);
> + arg = pinconf_to_config_argument(configs[i]);
> +
> + switch (param) {
> + case PIN_CONFIG_BIAS_DISABLE:
> + rc = rockchip_set_pull(bank, pin - bank->pin_base,
> + param);
> + if (rc)
> + return rc;
> + break;
> + case PIN_CONFIG_BIAS_PULL_UP:
> + case PIN_CONFIG_BIAS_PULL_DOWN:
> + case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
> + case PIN_CONFIG_BIAS_BUS_HOLD:
> + if (!rockchip_pinconf_pull_valid(info->ctrl, param))
> + return -ENOTSUPP;
> +
> + if (!arg)
> + return -EINVAL;
> +
> + rc = rockchip_set_pull(bank, pin - bank->pin_base,
> + param);
> + if (rc)
> + return rc;
> + break;
> + case PIN_CONFIG_OUTPUT:
> + rockchip_gpio_set(&bank->gpio_chip,
> + pin - bank->pin_base, arg);
> + rc =
> + _rockchip_pmx_gpio_set_direction(&bank->gpio_chip,
> + pin - bank->pin_base,
> + false);
> + if (rc)
> + return rc;
> + break;
> + case PIN_CONFIG_DRIVE_STRENGTH:
> + /* rk3288 is the first with per-pin drive-strength */
> + if (!info->ctrl->drv_calc_reg)
> + return -ENOTSUPP;
> +
> + rc =
> + rockchip_set_drive_perpin(bank,
> + pin - bank->pin_base, arg);
> + if (rc < 0)
> + return rc;
> + break;
> + case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
> + if (!info->ctrl->schmitt_calc_reg)
> + return -ENOTSUPP;
> +
> + rc = rockchip_set_schmitt(bank,
> + pin - bank->pin_base, arg);
> + if (rc < 0)
> + return rc;
> + break;
> + default:
> + return -ENOTSUPP;
> + }
> + } /* for each config */
> +
> + return 0;
> +}
> +
> +/* get the pin config settings for a specified pin */
> +static int rockchip_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
> + unsigned long *config)
> +{
> + struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
> + struct rockchip_pin_bank *bank = pin_to_bank(info, pin);
> + enum pin_config_param param = pinconf_to_config_param(*config);
> + u16 arg;
> + int rc;
> +
> + switch (param) {
> + case PIN_CONFIG_BIAS_DISABLE:
> + if (rockchip_get_pull(bank, pin - bank->pin_base) != param)
> + return -EINVAL;
> +
> + arg = 0;
> + break;
> + case PIN_CONFIG_BIAS_PULL_UP:
> + case PIN_CONFIG_BIAS_PULL_DOWN:
> + case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
> + case PIN_CONFIG_BIAS_BUS_HOLD:
> + if (!rockchip_pinconf_pull_valid(info->ctrl, param))
> + return -ENOTSUPP;
> +
> + if (rockchip_get_pull(bank, pin - bank->pin_base) != param)
> + return -EINVAL;
> +
> + arg = 1;
> + break;
> + case PIN_CONFIG_OUTPUT:
> + rc = rockchip_get_mux(bank, pin - bank->pin_base);
> + if (rc != RK_FUNC_GPIO)
> + return -EINVAL;
> +
> + rc = rockchip_gpio_get(&bank->gpio_chip, pin - bank->pin_base);
> + if (rc < 0)
> + return rc;
> +
> + arg = rc ? 1 : 0;
> + break;
> + case PIN_CONFIG_DRIVE_STRENGTH:
> + /* rk3288 is the first with per-pin drive-strength */
> + if (!info->ctrl->drv_calc_reg)
> + return -ENOTSUPP;
> +
> + rc = rockchip_get_drive_perpin(bank, pin - bank->pin_base);
> + if (rc < 0)
> + return rc;
> +
> + arg = rc;
> + break;
> + case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
> + if (!info->ctrl->schmitt_calc_reg)
> + return -ENOTSUPP;
> +
> + rc = rockchip_get_schmitt(bank, pin - bank->pin_base);
> + if (rc < 0)
> + return rc;
> +
> + arg = rc;
> + break;
> + default:
> + return -ENOTSUPP;
> + }
> +
> + *config = pinconf_to_config_packed(param, arg);
> +
> + return 0;
> +}
> +
> +static const struct pinconf_ops rockchip_pinconf_ops = {
> + .pin_config_get = rockchip_pinconf_get,
> + .pin_config_set = rockchip_pinconf_set,
> + .is_generic = true,
> +};
> +
> +static const struct of_device_id rockchip_bank_match[] = {
> + { .compatible = "rockchip,gpio-bank" },
> + { .compatible = "rockchip,rk3188-gpio-bank0" },
> + {},
> +};
> +
> +static void rockchip_pctrl_child_count(struct rockchip_pinctrl *info,
> + struct device_node *np)
> +{
> + struct device_node *child;
> +
> + for_each_child_of_node(np, child) {
> + if (of_match_node(rockchip_bank_match, child))
> + continue;
> +
> + info->nfunctions++;
> + info->ngroups += of_get_child_count(child);
> + }
> +}
> +
> +static int rockchip_pctrl_parse_groups(struct device_node *np,
> + struct rockchip_pin_group *grp,
> + struct rockchip_pinctrl *info,
> + u32 index)
> +{
> + struct rockchip_pin_bank *bank;
> + int size;
> + const __be32 *list;
> + int num;
> + int i, j;
> + int ret;
> +
> + dev_dbg(info->dev, "group(%d): %pOFn\n", index, np);
> +
> + /* Initialise group */
> + grp->name = np->name;
> +
> + /*
> + * the binding format is rockchip,pins = <bank pin mux CONFIG>,
> + * do sanity check and calculate pins number
> + */
> + list = of_get_property(np, "rockchip,pins", &size);
> + /* we do not check return since it's safe node passed down */
> + size /= sizeof(*list);
> + if (!size || size % 4) {
> + dev_err(info->dev, "wrong pins number or pins and configs should be by 4\n");
> + return -EINVAL;
> + }
> +
> + grp->npins = size / 4;
> +
> + grp->pins = devm_kcalloc(info->dev, grp->npins, sizeof(unsigned int),
> + GFP_KERNEL);
> + grp->data = devm_kcalloc(info->dev,
> + grp->npins,
> + sizeof(struct rockchip_pin_config),
> + GFP_KERNEL);
> + if (!grp->pins || !grp->data)
> + return -ENOMEM;
> +
> + for (i = 0, j = 0; i < size; i += 4, j++) {
> + const __be32 *phandle;
> + struct device_node *np_config;
> +
> + num = be32_to_cpu(*list++);
> + bank = bank_num_to_bank(info, num);
> + if (IS_ERR(bank))
> + return PTR_ERR(bank);
> +
> + grp->pins[j] = bank->pin_base + be32_to_cpu(*list++);
> + grp->data[j].func = be32_to_cpu(*list++);
> +
> + phandle = list++;
> + if (!phandle)
> + return -EINVAL;
> +
> + np_config = of_find_node_by_phandle(be32_to_cpup(phandle));
> + ret = pinconf_generic_parse_dt_config(np_config, NULL,
> + &grp->data[j].configs,
> + &grp->data[j].nconfigs);
> + if (ret)
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static int rockchip_pctrl_parse_functions(struct device_node *np,
> + struct rockchip_pinctrl *info,
> + u32 index)
> +{
> + struct device_node *child;
> + struct rockchip_pmx_func *func;
> + struct rockchip_pin_group *grp;
> + int ret;
> + static u32 grp_index;
> + u32 i = 0;
> +
> + dev_dbg(info->dev, "parse function(%d): %pOFn\n", index, np);
> +
> + func = &info->functions[index];
> +
> + /* Initialise function */
> + func->name = np->name;
> + func->ngroups = of_get_child_count(np);
> + if (func->ngroups <= 0)
> + return 0;
> +
> + func->groups = devm_kcalloc(info->dev, func->ngroups,
> + sizeof(char *), GFP_KERNEL);
> + if (!func->groups)
> + return -ENOMEM;
> +
> + for_each_child_of_node(np, child) {
> + func->groups[i] = child->name;
> + grp = &info->groups[grp_index++];
> + ret = rockchip_pctrl_parse_groups(child, grp, info, i++);
> + if (ret) {
> + of_node_put(child);
> + return ret;
> + }
> + }
> +
> + return 0;
> +}
> +
> +static int rockchip_pctrl_parse_dt(struct platform_device *pdev,
> + struct rockchip_pinctrl *info)
> +{
> + struct device *dev = &pdev->dev;
> + struct device_node *np = dev->of_node;
> + struct device_node *child;
> + int ret;
> + int i;
> +
> + rockchip_pctrl_child_count(info, np);
> +
> + dev_dbg(&pdev->dev, "nfunctions = %d\n", info->nfunctions);
> + dev_dbg(&pdev->dev, "ngroups = %d\n", info->ngroups);
> +
> + info->functions = devm_kcalloc(dev, info->nfunctions,
> + sizeof(struct rockchip_pmx_func),
> + GFP_KERNEL);
> + if (!info->functions)
> + return -EINVAL;
> +
> + info->groups = devm_kcalloc(dev, info->ngroups,
> + sizeof(struct rockchip_pin_group),
> + GFP_KERNEL);
> + if (!info->groups)
> + return -EINVAL;
> +
> + i = 0;
> +
> + for_each_child_of_node(np, child) {
> + if (of_match_node(rockchip_bank_match, child))
> + continue;
> +
> + ret = rockchip_pctrl_parse_functions(child, info, i++);
> + if (ret) {
> + dev_err(&pdev->dev, "failed to parse function\n");
> + of_node_put(child);
> + return ret;
> + }
> + }
> +
> + return 0;
> +}
> +
> +static int rockchip_pctrl_register(struct platform_device *pdev,
> + struct rockchip_pinctrl *info)
> +{
> + struct pinctrl_desc *ctrldesc = &info->pctl;
> + struct pinctrl_pin_desc *pindesc, *pdesc;
> + struct rockchip_pin_bank *pin_bank;
> + int pin, bank, ret;
> + int k;
> +
> + ctrldesc->name = "rockchip-pinctrl";
> + ctrldesc->owner = THIS_MODULE;
> + ctrldesc->pctlops = &rockchip_pctrl_ops;
> + ctrldesc->pmxops = &rockchip_pmx_ops;
> + ctrldesc->confops = &rockchip_pinconf_ops;
> +
> + pindesc = devm_kcalloc(&pdev->dev,
> + info->ctrl->nr_pins, sizeof(*pindesc),
> + GFP_KERNEL);
> + if (!pindesc)
> + return -ENOMEM;
> +
> + ctrldesc->pins = pindesc;
> + ctrldesc->npins = info->ctrl->nr_pins;
> +
> + pdesc = pindesc;
> + for (bank = 0, k = 0; bank < info->ctrl->nr_banks; bank++) {
> + pin_bank = &info->ctrl->pin_banks[bank];
> + for (pin = 0; pin < pin_bank->nr_pins; pin++, k++) {
> + pdesc->number = k;
> + pdesc->name = kasprintf(GFP_KERNEL, "%s-%d",
> + pin_bank->name, pin);
> + pdesc++;
> + }
> + }
> +
> + ret = rockchip_pctrl_parse_dt(pdev, info);
> + if (ret)
> + return ret;
> +
> + info->pctl_dev = devm_pinctrl_register(&pdev->dev, ctrldesc, info);
> + if (IS_ERR(info->pctl_dev)) {
> + dev_err(&pdev->dev, "could not register pinctrl driver\n");
> + return PTR_ERR(info->pctl_dev);
> + }
> +
> + for (bank = 0; bank < info->ctrl->nr_banks; ++bank) {
> + pin_bank = &info->ctrl->pin_banks[bank];
> + pin_bank->grange.name = pin_bank->name;
> + pin_bank->grange.id = bank;
> + pin_bank->grange.pin_base = pin_bank->pin_base;
> + pin_bank->grange.base = pin_bank->gpio_chip.base;
> + pin_bank->grange.npins = pin_bank->gpio_chip.ngpio;
> + pin_bank->grange.gc = &pin_bank->gpio_chip;
> + pinctrl_add_gpio_range(info->pctl_dev, &pin_bank->grange);
> + }
> +
> + return 0;
> +}
> +
> +/*
> + * GPIO handling
> + */
> +
> +static void rockchip_gpio_set(struct gpio_chip *gc, unsigned int offset,
> + int value)
> +{
> + struct rockchip_pin_bank *bank = gpiochip_get_data(gc);
> + void __iomem *reg = bank->reg_base + GPIO_SWPORT_DR;
> + unsigned long flags;
> + u32 data;
> +
> + clk_enable(bank->clk);
> + raw_spin_lock_irqsave(&bank->slock, flags);
> +
> + data = readl(reg);
> + data &= ~BIT(offset);
> + if (value)
> + data |= BIT(offset);
> + writel(data, reg);
> +
> + raw_spin_unlock_irqrestore(&bank->slock, flags);
> + clk_disable(bank->clk);
> +}
> +
> +/*
> + * Returns the level of the pin for input direction and setting of the DR
> + * register for output gpios.
> + */
> +static int rockchip_gpio_get(struct gpio_chip *gc, unsigned int offset)
> +{
> + struct rockchip_pin_bank *bank = gpiochip_get_data(gc);
> + u32 data;
> +
> + clk_enable(bank->clk);
> + data = readl(bank->reg_base + GPIO_EXT_PORT);
> + clk_disable(bank->clk);
> + data >>= offset;
> + data &= 1;
> + return data;
> +}
> +
> +/*
> + * gpiolib gpio_direction_input callback function. The setting of the pin
> + * mux function as 'gpio input' will be handled by the pinctrl subsystem
> + * interface.
> + */
> +static int rockchip_gpio_direction_input(struct gpio_chip *gc,
> + unsigned int offset)
> +{
> + return pinctrl_gpio_direction_input(gc->base + offset);
> +}
> +
> +/*
> + * gpiolib gpio_direction_output callback function. The setting of the pin
> + * mux function as 'gpio output' will be handled by the pinctrl subsystem
> + * interface.
> + */
> +static int rockchip_gpio_direction_output(struct gpio_chip *gc,
> + unsigned int offset, int value)
> +{
> + rockchip_gpio_set(gc, offset, value);
> + return pinctrl_gpio_direction_output(gc->base + offset);
> +}
> +
> +static void rockchip_gpio_set_debounce(struct gpio_chip *gc,
> + unsigned int offset, bool enable)
> +{
> + struct rockchip_pin_bank *bank = gpiochip_get_data(gc);
> + void __iomem *reg = bank->reg_base + GPIO_DEBOUNCE;
> + unsigned long flags;
> + u32 data;
> +
> + clk_enable(bank->clk);
> + raw_spin_lock_irqsave(&bank->slock, flags);
> +
> + data = readl(reg);
> + if (enable)
> + data |= BIT(offset);
> + else
> + data &= ~BIT(offset);
> + writel(data, reg);
> +
> + raw_spin_unlock_irqrestore(&bank->slock, flags);
> + clk_disable(bank->clk);
> +}
> +
> +/*
> + * gpiolib set_config callback function. The setting of the pin
> + * mux function as 'gpio output' will be handled by the pinctrl subsystem
> + * interface.
> + */
> +static int rockchip_gpio_set_config(struct gpio_chip *gc, unsigned int offset,
> + unsigned long config)
> +{
> + enum pin_config_param param = pinconf_to_config_param(config);
> +
> + switch (param) {
> + /*
> + * Rockchip's gpio could only support up to one period
> + * of the debounce clock(pclk), which is far away from
> + * satisftying the requirement, as pclk is usually near
> + * 100MHz shared by all peripherals. So the fact is it
> + * has crippled debounce capability could only be useful
> + * to prevent any spurious glitches from waking up the system
> + * if the gpio is conguired as wakeup interrupt source. Let's
> + * still return -ENOTSUPP as before, to make sure the caller
> + * of gpiod_set_debounce won't change its behaviour.
> + */
> + case PIN_CONFIG_INPUT_DEBOUNCE:
> + rockchip_gpio_set_debounce(gc, offset, true);
> + return -ENOTSUPP;
> + default:
> + return -ENOTSUPP;
> + }
> +}
> +
> +/*
> + * gpiolib gpio_to_irq callback function. Creates a mapping between a GPIO pin
> + * and a virtual IRQ, if not already present.
> + */
> +static int rockchip_gpio_to_irq(struct gpio_chip *gc, unsigned int offset)
> +{
> + struct rockchip_pin_bank *bank = gpiochip_get_data(gc);
> + unsigned int virq;
> +
> + if (!bank->domain)
> + return -ENXIO;
> +
> + virq = irq_create_mapping(bank->domain, offset);
> +
> + return (virq) ? : -ENXIO;
> +}
> +
> +static const struct gpio_chip rockchip_gpiolib_chip = {
> + .request = gpiochip_generic_request,
> + .free = gpiochip_generic_free,
> + .set = rockchip_gpio_set,
> + .get = rockchip_gpio_get,
> + .get_direction = rockchip_gpio_get_direction,
> + .direction_input = rockchip_gpio_direction_input,
> + .direction_output = rockchip_gpio_direction_output,
> + .set_config = rockchip_gpio_set_config,
> + .to_irq = rockchip_gpio_to_irq,
> + .owner = THIS_MODULE,
> +};
> +
> +/*
> + * Interrupt handling
> + */
> +
> +static void rockchip_irq_demux(struct irq_desc *desc)
> +{
> + struct irq_chip *chip = irq_desc_get_chip(desc);
> + struct rockchip_pin_bank *bank = irq_desc_get_handler_data(desc);
> + u32 pend;
> +
> + dev_dbg(bank->drvdata->dev, "got irq for bank %s\n", bank->name);
> +
> + chained_irq_enter(chip, desc);
> +
> + pend = readl_relaxed(bank->reg_base + GPIO_INT_STATUS);
> +
> + while (pend) {
> + unsigned int irq, virq;
> +
> + irq = __ffs(pend);
> + pend &= ~BIT(irq);
> + virq = irq_linear_revmap(bank->domain, irq);
> +
> + if (!virq) {
> + dev_err(bank->drvdata->dev, "unmapped irq %d\n", irq);
> + continue;
> + }
> +
> + dev_dbg(bank->drvdata->dev, "handling irq %d\n", irq);
> +
> + /*
> + * Triggering IRQ on both rising and falling edge
> + * needs manual intervention.
> + */
> + if (bank->toggle_edge_mode & BIT(irq)) {
> + u32 data, data_old, polarity;
> + unsigned long flags;
> +
> + data = readl_relaxed(bank->reg_base + GPIO_EXT_PORT);
> + do {
> + raw_spin_lock_irqsave(&bank->slock, flags);
> +
> + polarity = readl_relaxed(bank->reg_base +
> + GPIO_INT_POLARITY);
> + if (data & BIT(irq))
> + polarity &= ~BIT(irq);
> + else
> + polarity |= BIT(irq);
> + writel(polarity,
> + bank->reg_base + GPIO_INT_POLARITY);
> +
> + raw_spin_unlock_irqrestore(&bank->slock, flags);
> +
> + data_old = data;
> + data = readl_relaxed(bank->reg_base +
> + GPIO_EXT_PORT);
> + } while ((data & BIT(irq)) != (data_old & BIT(irq)));
> + }
> +
> + generic_handle_irq(virq);
> + }
> +
> + chained_irq_exit(chip, desc);
> +}
> +
> +static int rockchip_irq_set_type(struct irq_data *d, unsigned int type)
> +{
> + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
> + struct rockchip_pin_bank *bank = gc->private;
> + u32 mask = BIT(d->hwirq);
> + u32 polarity;
> + u32 level;
> + u32 data;
> + unsigned long flags;
> + int ret;
> +
> + /* make sure the pin is configured as gpio input */
> + ret = rockchip_set_mux(bank, d->hwirq, RK_FUNC_GPIO);
> + if (ret < 0)
> + return ret;
> +
> + clk_enable(bank->clk);
> + raw_spin_lock_irqsave(&bank->slock, flags);
> +
> + data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
> + data &= ~mask;
> + writel_relaxed(data, bank->reg_base + GPIO_SWPORT_DDR);
> +
> + raw_spin_unlock_irqrestore(&bank->slock, flags);
> +
> + if (type & IRQ_TYPE_EDGE_BOTH)
> + irq_set_handler_locked(d, handle_edge_irq);
> + else
> + irq_set_handler_locked(d, handle_level_irq);
> +
> + raw_spin_lock_irqsave(&bank->slock, flags);
> + irq_gc_lock(gc);
> +
> + level = readl_relaxed(gc->reg_base + GPIO_INTTYPE_LEVEL);
> + polarity = readl_relaxed(gc->reg_base + GPIO_INT_POLARITY);
> +
> + switch (type) {
> + case IRQ_TYPE_EDGE_BOTH:
> + bank->toggle_edge_mode |= mask;
> + level |= mask;
> +
> + /*
> + * Determine gpio state. If 1 next interrupt should be falling
> + * otherwise rising.
> + */
> + data = readl(bank->reg_base + GPIO_EXT_PORT);
> + if (data & mask)
> + polarity &= ~mask;
> + else
> + polarity |= mask;
> + break;
> + case IRQ_TYPE_EDGE_RISING:
> + bank->toggle_edge_mode &= ~mask;
> + level |= mask;
> + polarity |= mask;
> + break;
> + case IRQ_TYPE_EDGE_FALLING:
> + bank->toggle_edge_mode &= ~mask;
> + level |= mask;
> + polarity &= ~mask;
> + break;
> + case IRQ_TYPE_LEVEL_HIGH:
> + bank->toggle_edge_mode &= ~mask;
> + level &= ~mask;
> + polarity |= mask;
> + break;
> + case IRQ_TYPE_LEVEL_LOW:
> + bank->toggle_edge_mode &= ~mask;
> + level &= ~mask;
> + polarity &= ~mask;
> + break;
> + default:
> + irq_gc_unlock(gc);
> + raw_spin_unlock_irqrestore(&bank->slock, flags);
> + clk_disable(bank->clk);
> + return -EINVAL;
> + }
> +
> + writel_relaxed(level, gc->reg_base + GPIO_INTTYPE_LEVEL);
> + writel_relaxed(polarity, gc->reg_base + GPIO_INT_POLARITY);
> +
> + irq_gc_unlock(gc);
> + raw_spin_unlock_irqrestore(&bank->slock, flags);
> + clk_disable(bank->clk);
> +
> + return 0;
> +}
> +
> +static void rockchip_irq_suspend(struct irq_data *d)
> +{
> + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
> + struct rockchip_pin_bank *bank = gc->private;
> +
> + clk_enable(bank->clk);
> + bank->saved_masks = irq_reg_readl(gc, GPIO_INTMASK);
> + irq_reg_writel(gc, ~gc->wake_active, GPIO_INTMASK);
> + clk_disable(bank->clk);
> +}
> +
> +static void rockchip_irq_resume(struct irq_data *d)
> +{
> + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
> + struct rockchip_pin_bank *bank = gc->private;
> +
> + clk_enable(bank->clk);
> + irq_reg_writel(gc, bank->saved_masks, GPIO_INTMASK);
> + clk_disable(bank->clk);
> +}
> +
> +static void rockchip_irq_enable(struct irq_data *d)
> +{
> + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
> + struct rockchip_pin_bank *bank = gc->private;
> +
> + clk_enable(bank->clk);
> + irq_gc_mask_clr_bit(d);
> +}
> +
> +static void rockchip_irq_disable(struct irq_data *d)
> +{
> + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
> + struct rockchip_pin_bank *bank = gc->private;
> +
> + irq_gc_mask_set_bit(d);
> + clk_disable(bank->clk);
> +}
> +
> +static int rockchip_interrupts_register(struct platform_device *pdev,
> + struct rockchip_pinctrl *info)
> +{
> + struct rockchip_pin_ctrl *ctrl = info->ctrl;
> + struct rockchip_pin_bank *bank = ctrl->pin_banks;
> + unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
> + struct irq_chip_generic *gc;
> + int ret;
> + int i, j;
> +
> + for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
> + if (!bank->valid) {
> + dev_warn(&pdev->dev, "bank %s is not valid\n",
> + bank->name);
> + continue;
> + }
> +
> + ret = clk_enable(bank->clk);
> + if (ret) {
> + dev_err(&pdev->dev, "failed to enable clock for bank %s\n",
> + bank->name);
> + continue;
> + }
> +
> + bank->domain = irq_domain_add_linear(bank->of_node, 32,
> + &irq_generic_chip_ops,
> + NULL);
> + if (!bank->domain) {
> + dev_warn(&pdev->dev, "could not initialize irq domain for bank %s\n",
> + bank->name);
> + clk_disable(bank->clk);
> + continue;
> + }
> +
> + ret = irq_alloc_domain_generic_chips(bank->domain, 32, 1,
> + "rockchip_gpio_irq",
> + handle_level_irq,
> + clr, 0,
> + IRQ_GC_INIT_MASK_CACHE);
> + if (ret) {
> + dev_err(&pdev->dev, "could not alloc generic chips for bank %s\n",
> + bank->name);
> + irq_domain_remove(bank->domain);
> + clk_disable(bank->clk);
> + continue;
> + }
> +
> + /*
> + * Linux assumes that all interrupts start out disabled/masked.
> + * Our driver only uses the concept of masked and always keeps
> + * things enabled, so for us that's all masked and all enabled.
> + */
> + writel_relaxed(0xffffffff, bank->reg_base + GPIO_INTMASK);
> + writel_relaxed(0xffffffff, bank->reg_base + GPIO_INTEN);
> +
> + gc = irq_get_domain_generic_chip(bank->domain, 0);
> + gc->reg_base = bank->reg_base;
> + gc->private = bank;
> + gc->chip_types[0].regs.mask = GPIO_INTMASK;
> + gc->chip_types[0].regs.ack = GPIO_PORTS_EOI;
> + gc->chip_types[0].chip.irq_ack = irq_gc_ack_set_bit;
> + gc->chip_types[0].chip.irq_mask = irq_gc_mask_set_bit;
> + gc->chip_types[0].chip.irq_unmask = irq_gc_mask_clr_bit;
> + gc->chip_types[0].chip.irq_enable = rockchip_irq_enable;
> + gc->chip_types[0].chip.irq_disable = rockchip_irq_disable;
> + gc->chip_types[0].chip.irq_set_wake = irq_gc_set_wake;
> + gc->chip_types[0].chip.irq_suspend = rockchip_irq_suspend;
> + gc->chip_types[0].chip.irq_resume = rockchip_irq_resume;
> + gc->chip_types[0].chip.irq_set_type = rockchip_irq_set_type;
> + gc->wake_enabled = IRQ_MSK(bank->nr_pins);
> +
> + irq_set_chained_handler_and_data(bank->irq,
> + rockchip_irq_demux, bank);
> +
> + /* map the gpio irqs here, when the clock is still running */
> + for (j = 0 ; j < 32 ; j++)
> + irq_create_mapping(bank->domain, j);
> +
> + clk_disable(bank->clk);
> + }
> +
> + return 0;
> +}
> +
> +static int rockchip_gpiolib_register(struct platform_device *pdev,
> + struct rockchip_pinctrl *info)
> +{
> + struct rockchip_pin_ctrl *ctrl = info->ctrl;
> + struct rockchip_pin_bank *bank = ctrl->pin_banks;
> + struct gpio_chip *gc;
> + int ret;
> + int i;
> +
> + for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
> + if (!bank->valid) {
> + dev_warn(&pdev->dev, "bank %s is not valid\n",
> + bank->name);
> + continue;
> + }
> +
> + bank->gpio_chip = rockchip_gpiolib_chip;
> +
> + gc = &bank->gpio_chip;
> + gc->base = bank->pin_base;
> + gc->ngpio = bank->nr_pins;
> + gc->parent = &pdev->dev;
> + gc->of_node = bank->of_node;
> + gc->label = bank->name;
> +
> + ret = gpiochip_add_data(gc, bank);
> + if (ret) {
> + dev_err(&pdev->dev, "failed to register gpio_chip %s, error code: %d\n",
> + gc->label, ret);
> + goto fail;
> + }
> + }
> +
> + rockchip_interrupts_register(pdev, info);
> +
> + return 0;
> +
> +fail:
> + for (--i, --bank; i >= 0; --i, --bank) {
> + if (!bank->valid)
> + continue;
> + gpiochip_remove(&bank->gpio_chip);
> + }
> + return ret;
> +}
> +
> +static int rockchip_pctrl_get_bank_data(struct rockchip_pin_bank *bank,
> + struct rockchip_pinctrl *info)
> +{
> + struct resource res;
> + void __iomem *base;
> +
> + if (of_address_to_resource(bank->of_node, 0, &res)) {
> + dev_err(info->dev, "cannot find IO resource for bank\n");
> + return -ENOENT;
> + }
> +
> + bank->reg_base = devm_ioremap_resource(info->dev, &res);
> + if (IS_ERR(bank->reg_base))
> + return PTR_ERR(bank->reg_base);
> +
> + /*
> + * special case, where parts of the pull setting-registers are
> + * part of the PMU register space
> + */
> + if (of_device_is_compatible(bank->of_node,
> + "rockchip,rk3188-gpio-bank0")) {
> + struct device_node *node;
> +
> + node = of_parse_phandle(bank->of_node->parent,
> + "rockchip,pmu", 0);
> + if (!node) {
> + if (of_address_to_resource(bank->of_node, 1, &res)) {
> + dev_err(info->dev, "cannot find IO resource for bank\n");
> + return -ENOENT;
> + }
> +
> + base = devm_ioremap_resource(info->dev, &res);
> + if (IS_ERR(base))
> + return PTR_ERR(base);
> + rockchip_regmap_config.max_register =
> + resource_size(&res) - 4;
> + rockchip_regmap_config.name =
> + "rockchip,rk3188-gpio-bank0-pull";
> + bank->regmap_pull =
> + devm_regmap_init_mmio(info->dev,
> + base,
> + &rockchip_regmap_config);
> + }
> + of_node_put(node);
> + }
> +
> + bank->irq = irq_of_parse_and_map(bank->of_node, 0);
> +
> + bank->clk = of_clk_get(bank->of_node, 0);
> + if (IS_ERR(bank->clk))
> + return PTR_ERR(bank->clk);
> +
> + return clk_prepare(bank->clk);
> +}
> +
> +/* retrieve the soc specific data */
> +static int rockchip_pctrl_get_soc_data(struct platform_device *pdev)
> +{
> + struct rockchip_pinctrl *d = platform_get_drvdata(pdev);
> + struct rockchip_pin_ctrl *ctrl = d->ctrl;
> + struct device_node *np = pdev->dev.of_node;
> + struct device_node *child;
> + struct rockchip_pin_bank *bank;
> + int grf_offs, pmu_offs, drv_grf_offs, drv_pmu_offs, i, j;
> +
> + for_each_child_of_node(np, child) {
> + if (!of_find_property(child, "gpio-controller", NULL))
> + continue;
> +
> + bank = ctrl->pin_banks;
> + for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
> + if (!strcmp(bank->name, child->name)) {
> + bank->of_node = child;
> +
> + if (!rockchip_pctrl_get_bank_data(bank, d))
> + bank->valid = true;
> +
> + break;
> + }
> + }
> + }
> +
> + grf_offs = ctrl->grf_mux_offset;
> + pmu_offs = ctrl->pmu_mux_offset;
> + drv_pmu_offs = ctrl->pmu_drv_offset;
> + drv_grf_offs = ctrl->grf_drv_offset;
> + bank = ctrl->pin_banks;
> + for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
> + int bank_pins = 0;
> +
> + raw_spin_lock_init(&bank->slock);
> + bank->drvdata = d;
> + bank->pin_base = ctrl->nr_pins;
> + ctrl->nr_pins += bank->nr_pins;
> +
> + /* calculate iomux and drv offsets */
> + for (j = 0; j < 4; j++) {
> + struct rockchip_iomux *iom = &bank->iomux[j];
> + struct rockchip_drv *drv = &bank->drv[j];
> + int inc;
> +
> + if (bank_pins >= bank->nr_pins)
> + break;
> +
> + /* preset iomux offset value, set new start value */
> + if (iom->offset >= 0) {
> + if (iom->type & IOMUX_SOURCE_PMU)
> + pmu_offs = iom->offset;
> + else
> + grf_offs = iom->offset;
> + } else { /* set current iomux offset */
> + iom->offset = (iom->type & IOMUX_SOURCE_PMU) ?
> + pmu_offs : grf_offs;
> + }
> +
> + /* preset drv offset value, set new start value */
> + if (drv->offset >= 0) {
> + if (iom->type & IOMUX_SOURCE_PMU)
> + drv_pmu_offs = drv->offset;
> + else
> + drv_grf_offs = drv->offset;
> + } else { /* set current drv offset */
> + drv->offset = (iom->type & IOMUX_SOURCE_PMU) ?
> + drv_pmu_offs : drv_grf_offs;
> + }
> +
> + dev_dbg(d->dev, "bank %d, iomux %d has iom_offset 0x%x drv_offset 0x%x\n",
> + i, j, iom->offset, drv->offset);
> +
> + /*
> + * Increase offset according to iomux width.
> + * 4bit iomux'es are spread over two registers.
> + */
> + inc = (iom->type & (IOMUX_WIDTH_4BIT |
> + IOMUX_WIDTH_3BIT |
> + IOMUX_WIDTH_2BIT)) ? 8 : 4;
> + if (iom->type & IOMUX_SOURCE_PMU)
> + pmu_offs += inc;
> + else
> + grf_offs += inc;
> +
> + /*
> + * Increase offset according to drv width.
> + * 3bit drive-strength'es are spread over two registers.
> + */
> + if (drv->drv_type == DRV_TYPE_IO_1V8_3V0_AUTO ||
> + drv->drv_type == DRV_TYPE_IO_3V3_ONLY)
> + inc = 8;
> + else
> + inc = 4;
> +
> + if (iom->type & IOMUX_SOURCE_PMU)
> + drv_pmu_offs += inc;
> + else
> + drv_grf_offs += inc;
> +
> + bank_pins += 8;
> + }
> +
> + /* calculate the per-bank recalced_mask */
> + for (j = 0; j < ctrl->niomux_recalced; j++) {
> + int pin = 0;
> +
> + if (ctrl->iomux_recalced[j].num == bank->bank_num) {
> + pin = ctrl->iomux_recalced[j].pin;
> + bank->recalced_mask |= BIT(pin);
> + }
> + }
> +
> + /* calculate the per-bank route_mask */
> + for (j = 0; j < ctrl->niomux_routes; j++) {
> + int pin = 0;
> +
> + if (ctrl->iomux_routes[j].bank_num == bank->bank_num) {
> + pin = ctrl->iomux_routes[j].pin;
> + bank->route_mask |= BIT(pin);
> + }
> + }
> + }
> +
> + return 0;
> +}
> +
> +static int rockchip_pctrl_suspend(struct device *dev)
> +{
> + struct rockchip_pinctrl *info = dev_get_drvdata(dev);
> +
> + if (!info)
> + return -EINVAL;
> +
> + return pinctrl_force_sleep(info->pctl_dev);
> +}
> +
> +static int rockchip_pctrl_resume(struct device *dev)
> +{
> + struct rockchip_pinctrl *info = dev_get_drvdata(dev);
> +
> + if (!info)
> + return -EINVAL;
> +
> + return pinctrl_force_default(info->pctl_dev);
> +}
> +
> +SIMPLE_DEV_PM_OPS(rockchip_pctrl_dev_pm_ops,
> + rockchip_pctrl_suspend,
> + rockchip_pctrl_resume);
> +
> +int rockchip_pctrl_probe(struct platform_device *pdev)
> +{
> + struct device_node *np = pdev->dev.of_node;
> + struct device_node *child;
> + const struct of_device_id *match;
> + struct device *dev = &pdev->dev;
> + struct rockchip_pinctrl *info;
> + int ret;
> +
> + if (!np)
> + return -EINVAL;
> +
> + match = of_match_device(dev->driver->of_match_table, dev);
> + if (!match || !match->data)
> + return -EINVAL;
> +
> + info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
> + if (!info)
> + return -ENOMEM;
> +
> + info->dev = dev;
> + info->ctrl = (struct rockchip_pin_ctrl *)match->data;
> +
> + platform_set_drvdata(pdev, info);
> +
> + ret = rockchip_pctrl_get_soc_data(pdev);
> + if (ret) {
> + dev_err(dev, "driver data not available\n");
> + return -EINVAL;
> + }
> +
> + child = of_parse_phandle(np, "rockchip,grf", 0);
> + if (child) {
> + info->regmap_base = syscon_node_to_regmap(child);
> + if (IS_ERR(info->regmap_base))
> + return PTR_ERR(info->regmap_base);
> + }
> +
> + child = of_parse_phandle(np, "rockchip,pmu", 0);
> + if (child) {
> + info->regmap_pmu = syscon_node_to_regmap(child);
> + if (IS_ERR(info->regmap_pmu))
> + return PTR_ERR(info->regmap_pmu);
> + }
> +
> + ret = rockchip_pctrl_register(pdev, info);
> + if (ret)
> + return ret;
> +
> + ret = rockchip_gpiolib_register(pdev, info);
> + if (ret)
> + return ret;
> +
> + return 0;
> +}
> +
> diff --git a/drivers/pinctrl/rockchip/pinctrl-rockchip.h b/drivers/pinctrl/rockchip/pinctrl-rockchip.h
> new file mode 100644
> index 000000000000..cbf6958206cd
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-rockchip.h
> @@ -0,0 +1,387 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + */
> +
> +#ifndef __PINCTRL_ROCKCHIP_H__
> +#define __PINCTRL_ROCKCHIP_H__
> +
> +#include <linux/init.h>
> +#include <linux/platform_device.h>
> +#include <linux/io.h>
> +#include <linux/gpio.h>
> +#include <linux/of.h>
> +#include <linux/of_address.h>
> +#include <linux/of_device.h>
> +#include <linux/of_irq.h>
> +#include <linux/pinctrl/machine.h>
> +#include <linux/pinctrl/pinconf.h>
> +#include <linux/pinctrl/pinctrl.h>
> +#include <linux/pinctrl/pinmux.h>
> +#include <linux/pinctrl/pinconf-generic.h>
> +#include <linux/irqchip/chained_irq.h>
> +#include <linux/clk.h>
> +#include <linux/regmap.h>
> +#include <linux/mfd/syscon.h>
> +#include <dt-bindings/pinctrl/rockchip.h>
> +#include <linux/irq.h>
> +
> +#include "../core.h"
> +#include "../pinconf.h"
> +
> +enum rockchip_pinctrl_type {
> + PX30,
> + RV1108,
> + RK2928,
> + RK3066B,
> + RK3128,
> + RK3188,
> + RK3288,
> + RK3308,
> + RK3368,
> + RK3399,
> +};
> +
> +/**
> + * Encode variants of iomux registers into a type variable
> + */
> +#define IOMUX_GPIO_ONLY BIT(0)
> +#define IOMUX_WIDTH_4BIT BIT(1)
> +#define IOMUX_SOURCE_PMU BIT(2)
> +#define IOMUX_UNROUTED BIT(3)
> +#define IOMUX_WIDTH_3BIT BIT(4)
> +#define IOMUX_WIDTH_2BIT BIT(5)
> +
> +/**
> + * @type: iomux variant using IOMUX_* constants
> + * @offset: if initialized to -1 it will be autocalculated, by specifying
> + * an initial offset value the relevant source offset can be reset
> + * to a new value for autocalculating the following iomux registers.
> + */
> +struct rockchip_iomux {
> + int type;
> + int offset;
> +};
> +
> +/**
> + * enum type index corresponding to rockchip_perpin_drv_list arrays index.
> + */
> +enum rockchip_pin_drv_type {
> + DRV_TYPE_IO_DEFAULT = 0,
> + DRV_TYPE_IO_1V8_OR_3V0,
> + DRV_TYPE_IO_1V8_ONLY,
> + DRV_TYPE_IO_1V8_3V0_AUTO,
> + DRV_TYPE_IO_3V3_ONLY,
> + DRV_TYPE_MAX
> +};
> +
> +/**
> + * enum type index corresponding to rockchip_pull_list arrays index.
> + */
> +enum rockchip_pin_pull_type {
> + PULL_TYPE_IO_DEFAULT = 0,
> + PULL_TYPE_IO_1V8_ONLY,
> + PULL_TYPE_MAX
> +};
> +
> +/**
> + * @drv_type: drive strength variant using rockchip_perpin_drv_type
> + * @offset: if initialized to -1 it will be autocalculated, by specifying
> + * an initial offset value the relevant source offset can be reset
> + * to a new value for autocalculating the following drive strength
> + * registers. if used chips own cal_drv func instead to calculate
> + * registers offset, the variant could be ignored.
> + */
> +struct rockchip_drv {
> + enum rockchip_pin_drv_type drv_type;
> + int offset;
> +};
> +
> +/**
> + * @reg_base: register base of the gpio bank
> + * @reg_pull: optional separate register for additional pull settings
> + * @clk: clock of the gpio bank
> + * @irq: interrupt of the gpio bank
> + * @saved_masks: Saved content of GPIO_INTEN at suspend time.
> + * @pin_base: first pin number
> + * @nr_pins: number of pins in this bank
> + * @name: name of the bank
> + * @bank_num: number of the bank, to account for holes
> + * @iomux: array describing the 4 iomux sources of the bank
> + * @drv: array describing the 4 drive strength sources of the bank
> + * @pull_type: array describing the 4 pull type sources of the bank
> + * @valid: is all necessary information present
> + * @of_node: dt node of this bank
> + * @drvdata: common pinctrl basedata
> + * @domain: irqdomain of the gpio bank
> + * @gpio_chip: gpiolib chip
> + * @grange: gpio range
> + * @slock: spinlock for the gpio bank
> + * @route_mask: bits describing the routing pins of per bank
> + */
> +struct rockchip_pin_bank {
> + void __iomem *reg_base;
> + struct regmap *regmap_pull;
> + struct clk *clk;
> + int irq;
> + u32 saved_masks;
> + u32 pin_base;
> + u8 nr_pins;
> + char *name;
> + u8 bank_num;
> + struct rockchip_iomux iomux[4];
> + struct rockchip_drv drv[4];
> + enum rockchip_pin_pull_type pull_type[4];
> + bool valid;
> + struct device_node *of_node;
> + struct rockchip_pinctrl *drvdata;
> + struct irq_domain *domain;
> + struct gpio_chip gpio_chip;
> + struct pinctrl_gpio_range grange;
> + raw_spinlock_t slock;
> + u32 toggle_edge_mode;
> + u32 recalced_mask;
> + u32 route_mask;
> +};
> +
> +#define PIN_BANK(id, pins, label) \
> + { \
> + .bank_num = id, \
> + .nr_pins = pins, \
> + .name = label, \
> + .iomux = { \
> + { .offset = -1 }, \
> + { .offset = -1 }, \
> + { .offset = -1 }, \
> + { .offset = -1 }, \
> + }, \
> + }
> +
> +#define PIN_BANK_IOMUX_FLAGS(id, pins, label, iom0, iom1, iom2, iom3) \
> + { \
> + .bank_num = id, \
> + .nr_pins = pins, \
> + .name = label, \
> + .iomux = { \
> + { .type = iom0, .offset = -1 }, \
> + { .type = iom1, .offset = -1 }, \
> + { .type = iom2, .offset = -1 }, \
> + { .type = iom3, .offset = -1 }, \
> + }, \
> + }
> +
> +#define PIN_BANK_DRV_FLAGS(id, pins, label, type0, type1, type2, type3) \
> + { \
> + .bank_num = id, \
> + .nr_pins = pins, \
> + .name = label, \
> + .iomux = { \
> + { .offset = -1 }, \
> + { .offset = -1 }, \
> + { .offset = -1 }, \
> + { .offset = -1 }, \
> + }, \
> + .drv = { \
> + { .drv_type = type0, .offset = -1 }, \
> + { .drv_type = type1, .offset = -1 }, \
> + { .drv_type = type2, .offset = -1 }, \
> + { .drv_type = type3, .offset = -1 }, \
> + }, \
> + }
> +
> +#define PIN_BANK_DRV_FLAGS_PULL_FLAGS(id, pins, label, drv0, drv1, \
> + drv2, drv3, pull0, pull1, \
> + pull2, pull3) \
> + { \
> + .bank_num = id, \
> + .nr_pins = pins, \
> + .name = label, \
> + .iomux = { \
> + { .offset = -1 }, \
> + { .offset = -1 }, \
> + { .offset = -1 }, \
> + { .offset = -1 }, \
> + }, \
> + .drv = { \
> + { .drv_type = drv0, .offset = -1 }, \
> + { .drv_type = drv1, .offset = -1 }, \
> + { .drv_type = drv2, .offset = -1 }, \
> + { .drv_type = drv3, .offset = -1 }, \
> + }, \
> + .pull_type[0] = pull0, \
> + .pull_type[1] = pull1, \
> + .pull_type[2] = pull2, \
> + .pull_type[3] = pull3, \
> + }
> +
> +#define PIN_BANK_IOMUX_DRV_FLAGS_OFFSET(id, pins, label, iom0, iom1, \
> + iom2, iom3, drv0, drv1, drv2, \
> + drv3, offset0, offset1, \
> + offset2, offset3) \
> + { \
> + .bank_num = id, \
> + .nr_pins = pins, \
> + .name = label, \
> + .iomux = { \
> + { .type = iom0, .offset = -1 }, \
> + { .type = iom1, .offset = -1 }, \
> + { .type = iom2, .offset = -1 }, \
> + { .type = iom3, .offset = -1 }, \
> + }, \
> + .drv = { \
> + { .drv_type = drv0, .offset = offset0 }, \
> + { .drv_type = drv1, .offset = offset1 }, \
> + { .drv_type = drv2, .offset = offset2 }, \
> + { .drv_type = drv3, .offset = offset3 }, \
> + }, \
> + }
> +
> +#define PIN_BANK_IOMUX_FLAGS_DRV_FLAGS_OFFSET_PULL_FLAGS(id, pins, \
> + label, iom0, iom1, iom2, \
> + iom3, drv0, drv1, drv2, \
> + drv3, offset0, offset1, \
> + offset2, offset3, pull0, \
> + pull1, pull2, pull3) \
> + { \
> + .bank_num = id, \
> + .nr_pins = pins, \
> + .name = label, \
> + .iomux = { \
> + { .type = iom0, .offset = -1 }, \
> + { .type = iom1, .offset = -1 }, \
> + { .type = iom2, .offset = -1 }, \
> + { .type = iom3, .offset = -1 }, \
> + }, \
> + .drv = { \
> + { .drv_type = drv0, .offset = offset0 }, \
> + { .drv_type = drv1, .offset = offset1 }, \
> + { .drv_type = drv2, .offset = offset2 }, \
> + { .drv_type = drv3, .offset = offset3 }, \
> + }, \
> + .pull_type[0] = pull0, \
> + .pull_type[1] = pull1, \
> + .pull_type[2] = pull2, \
> + .pull_type[3] = pull3, \
> + }
> +
> +/**
> + * struct rockchip_mux_recalced_data: represent a pin iomux data.
> + * @num: bank number.
> + * @pin: pin number.
> + * @bit: index at register.
> + * @reg: register offset.
> + * @mask: mask bit
> + */
> +struct rockchip_mux_recalced_data {
> + u8 num;
> + u8 pin;
> + u32 reg;
> + u8 bit;
> + u8 mask;
> +};
> +
> +enum rockchip_mux_route_location {
> + ROCKCHIP_ROUTE_SAME = 0,
> + ROCKCHIP_ROUTE_PMU,
> + ROCKCHIP_ROUTE_GRF,
> +};
> +
> +/**
> + * struct rockchip_mux_recalced_data: represent a pin iomux data.
> + * @bank_num: bank number.
> + * @pin: index at register or used to calc index.
> + * @func: the min pin.
> + * @route_offset: the max pin.
> + * @route_val: the register offset.
> + */
> +struct rockchip_mux_route_data {
> + u8 bank_num;
> + u8 pin;
> + u8 func;
> + enum rockchip_mux_route_location route_location;
> + u32 route_offset;
> + u32 route_val;
> +};
> +
> +/**
> + */
> +struct rockchip_pin_ctrl {
> + struct rockchip_pin_bank *pin_banks;
> + u32 nr_banks;
> + u32 nr_pins;
> + char *label;
> + enum rockchip_pinctrl_type type;
> + int grf_mux_offset;
> + int pmu_mux_offset;
> + int grf_drv_offset;
> + int pmu_drv_offset;
> + struct rockchip_mux_recalced_data *iomux_recalced;
> + u32 niomux_recalced;
> + struct rockchip_mux_route_data *iomux_routes;
> + u32 niomux_routes;
> +
> + void (*pull_calc_reg)(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit);
> + void (*drv_calc_reg)(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit);
> + int (*schmitt_calc_reg)(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit);
> +};
> +
> +struct rockchip_pin_config {
> + unsigned int func;
> + unsigned long *configs;
> + unsigned int nconfigs;
> +};
> +
> +/**
> + * struct rockchip_pin_group: represent group of pins of a pinmux function.
> + * @name: name of the pin group, used to lookup the group.
> + * @pins: the pins included in this group.
> + * @npins: number of pins included in this group.
> + * @func: the mux function number to be programmed when selected.
> + * @configs: the config values to be set for each pin
> + * @nconfigs: number of configs for each pin
> + */
> +struct rockchip_pin_group {
> + const char *name;
> + unsigned int npins;
> + unsigned int *pins;
> + struct rockchip_pin_config *data;
> +};
> +
> +/**
> + * struct rockchip_pmx_func: represent a pin function.
> + * @name: name of the pin function, used to lookup the function.
> + * @groups: one or more names of pin groups that provide this function.
> + * @num_groups: number of groups included in @groups.
> + */
> +struct rockchip_pmx_func {
> + const char *name;
> + const char **groups;
> + u8 ngroups;
> +};
> +
> +struct rockchip_pinctrl {
> + struct regmap *regmap_base;
> + int reg_size;
> + struct regmap *regmap_pull;
> + struct regmap *regmap_pmu;
> + struct device *dev;
> + struct rockchip_pin_ctrl *ctrl;
> + struct pinctrl_desc pctl;
> + struct pinctrl_dev *pctl_dev;
> + struct rockchip_pin_group *groups;
> + unsigned int ngroups;
> + struct rockchip_pmx_func *functions;
> + unsigned int nfunctions;
> +};
> +
> +extern const struct dev_pm_ops rockchip_pctrl_dev_pm_ops;
> +
> +int rockchip_pctrl_probe(struct platform_device *pdev);
> +
> +#endif
> diff --git a/drivers/pinctrl/rockchip/pinctrl-rv1108.c b/drivers/pinctrl/rockchip/pinctrl-rv1108.c
> new file mode 100644
> index 000000000000..947b65db860b
> --- /dev/null
> +++ b/drivers/pinctrl/rockchip/pinctrl-rv1108.c
> @@ -0,0 +1,214 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +
> +#include "pinctrl-rockchip.h"
> +
> +#define RV1108_PULL_PMU_OFFSET 0x10
> +#define RV1108_PULL_OFFSET 0x110
> +#define RV1108_PULL_PINS_PER_REG 8
> +#define RV1108_PULL_BITS_PER_PIN 2
> +#define RV1108_PULL_BANK_STRIDE 16
> +
> +#define RV1108_DRV_PMU_OFFSET 0x20
> +#define RV1108_DRV_GRF_OFFSET 0x210
> +#define RV1108_DRV_BITS_PER_PIN 2
> +#define RV1108_DRV_PINS_PER_REG 8
> +#define RV1108_DRV_BANK_STRIDE 16
> +
> +#define RV1108_SCHMITT_PMU_OFFSET 0x30
> +#define RV1108_SCHMITT_GRF_OFFSET 0x388
> +#define RV1108_SCHMITT_BANK_STRIDE 8
> +#define RV1108_SCHMITT_PINS_PER_GRF_REG 16
> +#define RV1108_SCHMITT_PINS_PER_PMU_REG 8
> +
> +static struct rockchip_mux_recalced_data rv1108_mux_recalced_data[] = {
> + {
> + .num = 1,
> + .pin = 0,
> + .reg = 0x418,
> + .bit = 0,
> + .mask = 0x3
> + }, {
> + .num = 1,
> + .pin = 1,
> + .reg = 0x418,
> + .bit = 2,
> + .mask = 0x3
> + }, {
> + .num = 1,
> + .pin = 2,
> + .reg = 0x418,
> + .bit = 4,
> + .mask = 0x3
> + }, {
> + .num = 1,
> + .pin = 3,
> + .reg = 0x418,
> + .bit = 6,
> + .mask = 0x3
> + }, {
> + .num = 1,
> + .pin = 4,
> + .reg = 0x418,
> + .bit = 8,
> + .mask = 0x3
> + }, {
> + .num = 1,
> + .pin = 5,
> + .reg = 0x418,
> + .bit = 10,
> + .mask = 0x3
> + }, {
> + .num = 1,
> + .pin = 6,
> + .reg = 0x418,
> + .bit = 12,
> + .mask = 0x3
> + }, {
> + .num = 1,
> + .pin = 7,
> + .reg = 0x418,
> + .bit = 14,
> + .mask = 0x3
> + }, {
> + .num = 1,
> + .pin = 8,
> + .reg = 0x41c,
> + .bit = 0,
> + .mask = 0x3
> + }, {
> + .num = 1,
> + .pin = 9,
> + .reg = 0x41c,
> + .bit = 2,
> + .mask = 0x3
> + },
> +};
> +
> +static void rv1108_calc_pull(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + /* The first 24 pins of the first bank are located in PMU */
> + if (bank->bank_num == 0) {
> + *regmap = info->regmap_pmu;
> + *reg = RV1108_PULL_PMU_OFFSET;
> + } else {
> + *reg = RV1108_PULL_OFFSET;
> + *regmap = info->regmap_base;
> + /* correct the offset, as we're starting with the secnod bank */
> + *reg -= 0x10;
> + *reg += bank->bank_num * RV1108_PULL_BANK_STRIDE;
> + }
> +
> + *reg += ((pin_num / RV1108_PULL_PINS_PER_REG) * 4);
> + *bit = (pin_num % RV1108_PULL_PINS_PER_REG);
> + *bit *= RV1108_PULL_BITS_PER_PIN;
> +}
> +
> +static void rv1108_calc_drv(struct rockchip_pin_bank *bank,
> + int pin_num, struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> +
> + /* The first 24 pins of the first bank are located in PMU */
> + if (bank->bank_num == 0) {
> + *regmap = info->regmap_pmu;
> + *reg = RV1108_DRV_PMU_OFFSET;
> + } else {
> + *regmap = info->regmap_base;
> + *reg = RV1108_DRV_GRF_OFFSET;
> +
> + /* correct the offset, as we're starting with the second bank */
> + *reg -= 0x10;
> + *reg += bank->bank_num * RV1108_DRV_BANK_STRIDE;
> + }
> +
> + *reg += ((pin_num / RV1108_DRV_PINS_PER_REG) * 4);
> + *bit = pin_num % RV1108_DRV_PINS_PER_REG;
> + *bit *= RV1108_DRV_BITS_PER_PIN;
> +}
> +
> +static int rv1108_calc_schmitt(struct rockchip_pin_bank *bank,
> + int pin_num,
> + struct regmap **regmap,
> + int *reg, u8 *bit)
> +{
> + struct rockchip_pinctrl *info = bank->drvdata;
> + int pins_per_reg;
> +
> + if (bank->bank_num == 0) {
> + *regmap = info->regmap_pmu;
> + *reg = RV1108_SCHMITT_PMU_OFFSET;
> + pins_per_reg = RV1108_SCHMITT_PINS_PER_PMU_REG;
> + } else {
> + *regmap = info->regmap_base;
> + *reg = RV1108_SCHMITT_GRF_OFFSET;
> + pins_per_reg = RV1108_SCHMITT_PINS_PER_GRF_REG;
> + *reg += (bank->bank_num - 1) * RV1108_SCHMITT_BANK_STRIDE;
> + }
> + *reg += ((pin_num / pins_per_reg) * 4);
> + *bit = pin_num % pins_per_reg;
> +
> + return 0;
> +}
> +
> +static struct rockchip_pin_bank rv1108_pin_banks[] = {
> + PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0",
> + IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU,
> + IOMUX_SOURCE_PMU),
> + PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", 0, 0, 0, 0),
> + PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0, 0, 0, 0),
> + PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", 0, 0, 0, 0),
> +};
> +
> +static struct rockchip_pin_ctrl rv1108_pin_ctrl = {
> + .pin_banks = rv1108_pin_banks,
> + .nr_banks = ARRAY_SIZE(rv1108_pin_banks),
> + .label = "RV1108-GPIO",
> + .type = RV1108,
> + .grf_mux_offset = 0x10,
> + .pmu_mux_offset = 0x0,
> + .iomux_recalced = rv1108_mux_recalced_data,
> + .niomux_recalced = ARRAY_SIZE(rv1108_mux_recalced_data),
> + .pull_calc_reg = rv1108_calc_pull,
> + .drv_calc_reg = rv1108_calc_drv,
> + .schmitt_calc_reg = rv1108_calc_schmitt,
> +};
> +
> +static const struct of_device_id rv1108_pinctrl_dt_match[] = {
> + { .compatible = "rockchip,rv1108-pinctrl",
> + .data = &rv1108_pin_ctrl },
> + {},
> +};
> +
> +static struct platform_driver rv1108_pinctrl_driver = {
> + .probe = rockchip_pctrl_probe,
> + .driver = {
> + .name = "rv1108-pinctrl",
> + .pm = &rockchip_pctrl_dev_pm_ops,
> + .of_match_table = rv1108_pinctrl_dt_match,
> + },
> +};
> +
> +static int __init rv1108_pinctrl_init(void)
> +{
> + return platform_driver_register(&rv1108_pinctrl_driver);
> +}
> +postcore_initcall(rv1108_pinctrl_init);
> +
> +MODULE_DESCRIPTION("RV1108 pin control and GPIO driver");
> +MODULE_AUTHOR("Jianqun Xu <jay.xu@...k-chips.com>");
> +MODULE_LICENSE("GPL v2");
>
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