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Message-ID: <20151204143904.GA10784@rob-hp-laptop>
Date: Fri, 4 Dec 2015 08:39:04 -0600
From: Rob Herring <robh@...nel.org>
To: Chen-Yu Tsai <wens@...e.org>
Cc: Maxime Ripard <maxime.ripard@...e-electrons.com>,
Linus Walleij <linus.walleij@...aro.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>, linux-gpio@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH 1/7] pinctrl: sunxi: Add A80 special pin controller
On Tue, Dec 01, 2015 at 01:47:19PM +0800, Chen-Yu Tsai wrote:
> From: Maxime Ripard <maxime.ripard@...e-electrons.com>
>
> Like the previous designs, the A80 has a special pin controller for the
> critical pins, like the PMIC bus.
>
> Add a driver for this controller.
>
> Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
> [wens: Add A80 compatible strings to bindings doc; fix pin function
> names based on v1.3 datasheet; constify of_device_id table]
> Signed-off-by: Chen-Yu Tsai <wens@...e.org>
> ---
> .../bindings/pinctrl/allwinner,sunxi-pinctrl.txt | 2 +
For the binding:
Acked-by: Rob Herring <robh@...nel.org>
> drivers/pinctrl/sunxi/Kconfig | 5 +
> drivers/pinctrl/sunxi/Makefile | 1 +
> drivers/pinctrl/sunxi/pinctrl-sun9i-a80-r.c | 181 +++++++++++++++++++++
> 4 files changed, 189 insertions(+)
> create mode 100644 drivers/pinctrl/sunxi/pinctrl-sun9i-a80-r.c
>
> diff --git a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
> index b321b26780dc..b3b6c2f210d7 100644
> --- a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
> +++ b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
> @@ -18,6 +18,8 @@ Required properties:
> "allwinner,sun8i-a23-r-pinctrl"
> "allwinner,sun8i-a33-pinctrl"
> "allwinner,sun8i-a83t-pinctrl"
> + "allwinner,sun9i-a80-pinctrl"
> + "allwinner,sun9i-a80-r-pinctrl"
>
> - reg: Should contain the register physical address and length for the
> pin controller.
> diff --git a/drivers/pinctrl/sunxi/Kconfig b/drivers/pinctrl/sunxi/Kconfig
> index e68fd951129a..0252b3fa41ce 100644
> --- a/drivers/pinctrl/sunxi/Kconfig
> +++ b/drivers/pinctrl/sunxi/Kconfig
> @@ -55,4 +55,9 @@ config PINCTRL_SUN9I_A80
> def_bool MACH_SUN9I
> select PINCTRL_SUNXI_COMMON
>
> +config PINCTRL_SUN9I_A80_R
> + def_bool MACH_SUN9I
> + depends on RESET_CONTROLLER
> + select PINCTRL_SUNXI_COMMON
> +
> endif
> diff --git a/drivers/pinctrl/sunxi/Makefile b/drivers/pinctrl/sunxi/Makefile
> index e08029034510..0b4b827f314b 100644
> --- a/drivers/pinctrl/sunxi/Makefile
> +++ b/drivers/pinctrl/sunxi/Makefile
> @@ -14,3 +14,4 @@ obj-$(CONFIG_PINCTRL_SUN8I_A23_R) += pinctrl-sun8i-a23-r.o
> obj-$(CONFIG_PINCTRL_SUN8I_A33) += pinctrl-sun8i-a33.o
> obj-$(CONFIG_PINCTRL_SUN8I_A83T) += pinctrl-sun8i-a83t.o
> obj-$(CONFIG_PINCTRL_SUN9I_A80) += pinctrl-sun9i-a80.o
> +obj-$(CONFIG_PINCTRL_SUN9I_A80_R) += pinctrl-sun9i-a80-r.o
> diff --git a/drivers/pinctrl/sunxi/pinctrl-sun9i-a80-r.c b/drivers/pinctrl/sunxi/pinctrl-sun9i-a80-r.c
> new file mode 100644
> index 000000000000..42547ffa20a8
> --- /dev/null
> +++ b/drivers/pinctrl/sunxi/pinctrl-sun9i-a80-r.c
> @@ -0,0 +1,181 @@
> +/*
> + * Allwinner A80 SoCs special pins pinctrl driver.
> + *
> + * Copyright (C) 2014 Maxime Ripard
> + * Maxime Ripard <maxime.ripard@...e-electrons.com>
> + *
> + * This file is licensed under the terms of the GNU General Public
> + * License version 2. This program is licensed "as is" without any
> + * warranty of any kind, whether express or implied.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/of.h>
> +#include <linux/of_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +#include <linux/reset.h>
> +
> +#include "pinctrl-sunxi.h"
> +
> +static const struct sunxi_desc_pin sun9i_a80_r_pins[] = {
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 0),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x3, "s_uart"), /* TX */
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 0)), /* PL_EINT0 */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 1),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x3, "s_uart"), /* RX */
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 1)), /* PL_EINT1 */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 2),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x3, "s_jtag"), /* TMS */
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 2)), /* PL_EINT2 */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 3),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x3, "s_jtag"), /* TCK */
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 3)), /* PL_EINT3 */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 4),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x3, "s_jtag"), /* TDO */
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 4)), /* PL_EINT4 */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 5),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x3, "s_jtag"), /* TDI */
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 5)), /* PL_EINT5 */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 6),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x3, "s_cir_rx"),
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 6)), /* PL_EINT6 */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 7),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x3, "1wire"),
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 7)), /* PL_EINT7 */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 8),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x2, "s_ps2"), /* SCK1 */
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 8)), /* PL_EINT8 */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 9),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x2, "s_ps2"), /* SDA1 */
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 9)), /* PL_EINT9 */
> +
> + /* Hole */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 0),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 0)), /* PM_EINT0 */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 1),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 1)), /* PM_EINT1 */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 2),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 2)), /* PM_EINT2 */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 3),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 3)), /* PM_EINT3 */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 4),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x3, "s_i2s1"), /* LRCKR */
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 4)), /* PM_EINT4 */
> +
> + /* Hole */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 8),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x3, "s_i2c1"), /* SCK */
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 8)), /* PM_EINT8 */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 9),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x3, "s_i2c1"), /* SDA */
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 9)), /* PM_EINT9 */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 10),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x2, "s_i2s0"), /* MCLK */
> + SUNXI_FUNCTION(0x3, "s_i2s1")), /* MCLK */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 11),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x2, "s_i2s0"), /* BCLK */
> + SUNXI_FUNCTION(0x3, "s_i2s1")), /* BCLK */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 12),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x2, "s_i2s0"), /* LRCK */
> + SUNXI_FUNCTION(0x3, "s_i2s1")), /* LRCK */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 13),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x2, "s_i2s0"), /* DIN */
> + SUNXI_FUNCTION(0x3, "s_i2s1")), /* DIN */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 14),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x2, "s_i2s0"), /* DOUT */
> + SUNXI_FUNCTION(0x3, "s_i2s1")), /* DOUT */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 15),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 15)), /* PM_EINT15 */
> +
> + /* Hole */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(N, 0),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x2, "s_i2c0"), /* SCK */
> + SUNXI_FUNCTION(0x3, "s_rsb")), /* SCK */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(N, 1),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x2, "s_i2c0"), /* SDA */
> + SUNXI_FUNCTION(0x3, "s_rsb")), /* SDA */
> +};
> +
> +static const struct sunxi_pinctrl_desc sun9i_a80_r_pinctrl_data = {
> + .pins = sun9i_a80_r_pins,
> + .npins = ARRAY_SIZE(sun9i_a80_r_pins),
> + .pin_base = PL_BASE,
> + .irq_banks = 2,
> +};
> +
> +static int sun9i_a80_r_pinctrl_probe(struct platform_device *pdev)
> +{
> + return sunxi_pinctrl_init(pdev,
> + &sun9i_a80_r_pinctrl_data);
> +}
> +
> +static const struct of_device_id sun9i_a80_r_pinctrl_match[] = {
> + { .compatible = "allwinner,sun9i-a80-r-pinctrl", },
> + {}
> +};
> +MODULE_DEVICE_TABLE(of, sun9i_a80_r_pinctrl_match);
> +
> +static struct platform_driver sun9i_a80_r_pinctrl_driver = {
> + .probe = sun9i_a80_r_pinctrl_probe,
> + .driver = {
> + .name = "sun9i-a80-r-pinctrl",
> + .owner = THIS_MODULE,
> + .of_match_table = sun9i_a80_r_pinctrl_match,
> + },
> +};
> +module_platform_driver(sun9i_a80_r_pinctrl_driver);
> +
> +MODULE_AUTHOR("Maxime Ripard <maxime.ripard@...e-electrons.com");
> +MODULE_DESCRIPTION("Allwinner A80 R_PIO pinctrl driver");
> +MODULE_LICENSE("GPL");
> --
> 2.6.2
>
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