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Message-ID: <20160630074317.GD1707@dell>
Date: Thu, 30 Jun 2016 08:43:17 +0100
From: Lee Jones <lee.jones@...aro.org>
To: Mark Brown <broonie@...nel.org>
Cc: Stefan Agner <stefan@...er.ch>, Rob Herring <robh@...nel.org>,
lgirdwood@...il.com, khilman@...libre.com, carlo@...one.org,
b.galvani@...il.com, max.oss.09@...il.com, marcel@...wiler.com,
linux@...linux.org.uk, galak@...eaurora.org,
ijc+devicetree@...lion.org.uk, mark.rutland@....com,
pawel.moll@....com, robh+dt@...nel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-amlogic@...ts.infradead.org
Subject: Re: Applied "mfd: rn5t618: Add Ricoh RN5T567 PMIC support" to the
regulator tree
On Wed, 29 Jun 2016, Mark Brown wrote:
> The patch
>
> mfd: rn5t618: Add Ricoh RN5T567 PMIC support
Are all of these 'applied' emails because you merged my PR?
> has been applied to the regulator tree at
>
> git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git
>
> All being well this means that it will be integrated into the linux-next
> tree (usually sometime in the next 24 hours) and sent to Linus during
> the next merge window (or sooner if it is a bug fix), however if
> problems are discovered then the patch may be dropped or reverted.
>
> You may get further e-mails resulting from automated or manual testing
> and review of the tree, please engage with people reporting problems and
> send followup patches addressing any issues that are reported if needed.
>
> If any updates are required or you are submitting further changes they
> should be sent as incremental updates against current git, existing
> patches will not be replaced.
>
> Please add any relevant lists and maintainers to the CCs when replying
> to this mail.
>
> Thanks,
> Mark
>
> From a99ab50dbbb1f982d076d19e0a9959fe2efa3126 Mon Sep 17 00:00:00 2001
> From: Stefan Agner <stefan@...er.ch>
> Date: Tue, 28 Jun 2016 22:53:19 -0700
> Subject: [PATCH] mfd: rn5t618: Add Ricoh RN5T567 PMIC support
>
> The Ricoh RN5T567 is from the same family as the Ricoh RN5T618 is,
> the differences are:
>
> + DCDC4
> + Slightly different output voltage/currents
> + 32kHz Output
> - ADC/Charger capabilities
>
> Signed-off-by: Stefan Agner <stefan@...er.ch>
> Reviewed-by: Marcel Ziswiler <marcel.ziswiler@...adex.com>
> Acked-by: Rob Herring <robh@...nel.org>
> Signed-off-by: Lee Jones <lee.jones@...aro.org>
> ---
> Documentation/devicetree/bindings/mfd/rn5t618.txt | 19 +++++++++--------
> drivers/mfd/Kconfig | 7 ++++---
> drivers/mfd/rn5t618.c | 25 ++++++++++++++++-------
> include/linux/mfd/rn5t618.h | 12 +++++++++++
> 4 files changed, 45 insertions(+), 18 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/mfd/rn5t618.txt b/Documentation/devicetree/bindings/mfd/rn5t618.txt
> index 937785a3eddc..9e6770b105c9 100644
> --- a/Documentation/devicetree/bindings/mfd/rn5t618.txt
> +++ b/Documentation/devicetree/bindings/mfd/rn5t618.txt
> @@ -1,18 +1,21 @@
> -* Ricoh RN5T618 PMIC
> +* Ricoh RN5T567/RN5T618 PMIC
>
> -Ricoh RN5T618 is a power management IC which integrates 3 step-down
> -DCDC converters, 7 low-dropout regulators, a Li-ion battery charger,
> -fuel gauge, ADC, GPIOs and a watchdog timer. It can be controlled
> -through a I2C interface.
> +Ricoh RN5T567/RN5T618 is a power management IC family which integrates
> +3 to 4 step-down DCDC converters, 7 low-dropout regulators, GPIOs and
> +a watchdog timer. The RN5T618 provides additionally a Li-ion battery
> +charger, fuel gauge and an ADC. It can be controlled through an I2C
> +interface.
>
> Required properties:
> - - compatible: should be "ricoh,rn5t618"
> + - compatible: must be one of
> + "ricoh,rn5t567"
> + "ricoh,rn5t618"
> - reg: the I2C slave address of the device
>
> Sub-nodes:
> - regulators: the node is required if the regulator functionality is
> - needed. The valid regulator names are: DCDC1, DCDC2, DCDC3, LDO1,
> - LDO2, LDO3, LDO4, LDO5, LDORTC1 and LDORTC2.
> + needed. The valid regulator names are: DCDC1, DCDC2, DCDC3, DCDC4
> + (RN5T567), LDO1, LDO2, LDO3, LDO4, LDO5, LDORTC1 and LDORTC2.
> The common bindings for each individual regulator can be found in:
> Documentation/devicetree/bindings/regulator/regulator.txt
>
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 1bcf601de5bc..ff031a7735a5 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -852,13 +852,14 @@ config MFD_RK808
> including interrupts, RTC, LDO & DCDC regulators, and onkey.
>
> config MFD_RN5T618
> - tristate "Ricoh RN5T5618 PMIC"
> + tristate "Ricoh RN5T567/618 PMIC"
> depends on I2C
> + depends on OF
> select MFD_CORE
> select REGMAP_I2C
> help
> - Say yes here to add support for the Ricoh RN5T618 PMIC. This
> - driver provides common support for accessing the device,
> + Say yes here to add support for the Ricoh RN5T567 or R5T618 PMIC.
> + This driver provides common support for accessing the device,
> additional drivers must be enabled in order to use the
> functionality of the device.
>
> diff --git a/drivers/mfd/rn5t618.c b/drivers/mfd/rn5t618.c
> index 0ad51d792feb..c86160d3a773 100644
> --- a/drivers/mfd/rn5t618.c
> +++ b/drivers/mfd/rn5t618.c
> @@ -2,6 +2,7 @@
> * MFD core driver for Ricoh RN5T618 PMIC
> *
> * Copyright (C) 2014 Beniamino Galvani <b.galvani@...il.com>
> + * Copyright (C) 2016 Toradex AG
> *
> * This program is free software; you can redistribute it and/or
> * modify it under the terms of the GNU General Public License
> @@ -15,6 +16,7 @@
> #include <linux/mfd/core.h>
> #include <linux/mfd/rn5t618.h>
> #include <linux/module.h>
> +#include <linux/of_device.h>
> #include <linux/regmap.h>
>
> static const struct mfd_cell rn5t618_cells[] = {
> @@ -59,17 +61,32 @@ static void rn5t618_power_off(void)
> RN5T618_SLPCNT_SWPWROFF, RN5T618_SLPCNT_SWPWROFF);
> }
>
> +static const struct of_device_id rn5t618_of_match[] = {
> + { .compatible = "ricoh,rn5t567", .data = (void *)RN5T567 },
> + { .compatible = "ricoh,rn5t618", .data = (void *)RN5T618 },
> + { }
> +};
> +MODULE_DEVICE_TABLE(of, rn5t618_of_match);
> +
> static int rn5t618_i2c_probe(struct i2c_client *i2c,
> const struct i2c_device_id *id)
> {
> + const struct of_device_id *of_id;
> struct rn5t618 *priv;
> int ret;
>
> + of_id = of_match_device(rn5t618_of_match, &i2c->dev);
> + if (!of_id) {
> + dev_err(&i2c->dev, "Failed to find matching DT ID\n");
> + return -EINVAL;
> + }
> +
> priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
> if (!priv)
> return -ENOMEM;
>
> i2c_set_clientdata(i2c, priv);
> + priv->variant = (long)of_id->data;
>
> priv->regmap = devm_regmap_init_i2c(i2c, &rn5t618_regmap_config);
> if (IS_ERR(priv->regmap)) {
> @@ -105,12 +122,6 @@ static int rn5t618_i2c_remove(struct i2c_client *i2c)
> return 0;
> }
>
> -static const struct of_device_id rn5t618_of_match[] = {
> - { .compatible = "ricoh,rn5t618" },
> - { }
> -};
> -MODULE_DEVICE_TABLE(of, rn5t618_of_match);
> -
> static const struct i2c_device_id rn5t618_i2c_id[] = {
> { }
> };
> @@ -129,5 +140,5 @@ static struct i2c_driver rn5t618_i2c_driver = {
> module_i2c_driver(rn5t618_i2c_driver);
>
> MODULE_AUTHOR("Beniamino Galvani <b.galvani@...il.com>");
> -MODULE_DESCRIPTION("Ricoh RN5T618 MFD driver");
> +MODULE_DESCRIPTION("Ricoh RN5T567/618 MFD driver");
> MODULE_LICENSE("GPL v2");
> diff --git a/include/linux/mfd/rn5t618.h b/include/linux/mfd/rn5t618.h
> index c72d5344f3b3..54179c2577ae 100644
> --- a/include/linux/mfd/rn5t618.h
> +++ b/include/linux/mfd/rn5t618.h
> @@ -20,6 +20,7 @@
> #define RN5T618_OTPVER 0x01
> #define RN5T618_IODAC 0x02
> #define RN5T618_VINDAC 0x03
> +#define RN5T618_OUT32KEN 0x05
> #define RN5T618_CPUCNT 0x06
> #define RN5T618_PSWR 0x07
> #define RN5T618_PONHIS 0x09
> @@ -38,6 +39,7 @@
> #define RN5T618_DC1_SLOT 0x16
> #define RN5T618_DC2_SLOT 0x17
> #define RN5T618_DC3_SLOT 0x18
> +#define RN5T618_DC4_SLOT 0x19
> #define RN5T618_LDO1_SLOT 0x1b
> #define RN5T618_LDO2_SLOT 0x1c
> #define RN5T618_LDO3_SLOT 0x1d
> @@ -54,12 +56,16 @@
> #define RN5T618_DC2CTL2 0x2f
> #define RN5T618_DC3CTL 0x30
> #define RN5T618_DC3CTL2 0x31
> +#define RN5T618_DC4CTL 0x32
> +#define RN5T618_DC4CTL2 0x33
> #define RN5T618_DC1DAC 0x36
> #define RN5T618_DC2DAC 0x37
> #define RN5T618_DC3DAC 0x38
> +#define RN5T618_DC4DAC 0x39
> #define RN5T618_DC1DAC_SLP 0x3b
> #define RN5T618_DC2DAC_SLP 0x3c
> #define RN5T618_DC3DAC_SLP 0x3d
> +#define RN5T618_DC4DAC_SLP 0x3e
> #define RN5T618_DCIREN 0x40
> #define RN5T618_DCIRQ 0x41
> #define RN5T618_DCIRMON 0x42
> @@ -221,8 +227,14 @@ enum {
> RN5T618_REG_NUM,
> };
>
> +enum {
> + RN5T567 = 0,
> + RN5T618,
> +};
> +
> struct rn5t618 {
> struct regmap *regmap;
> + long variant;
> };
>
> #endif /* __LINUX_MFD_RN5T618_H */
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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