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Date: Sun, 20 Sep 2015 05:16:44 +0100
From: Lee Jones <lee.jones@...aro.org>
To: "Andrew F. Davis" <afd@...com>
Cc: Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
Linus Walleij <linus.walleij@...aro.org>,
Alexandre Courbot <gnurou@...il.com>,
Samuel Ortiz <sameo@...ux.intel.com>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>, devicetree@...r.kernel.org,
linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] mfd: tps65912: Rewrite driver adding DT support and
using regmap
On Tue, 15 Sep 2015, Andrew F. Davis wrote:
> The old driver does not support DT. Rewrite the driver adding DT support
> and use modern kernel features such as regmap and related helpers.
>
> Signed-off-by: Andrew F. Davis <afd@...com>
> ---
> drivers/gpio/gpio-tps65912.c | 291 ++++++------
> drivers/mfd/Kconfig | 20 +-
> drivers/mfd/Makefile | 3 +-
> drivers/mfd/tps65912-core.c | 288 +++++-------
> drivers/mfd/tps65912-i2c.c | 233 ++++------
> drivers/mfd/tps65912-irq.c | 217 ---------
> drivers/mfd/tps65912-spi.c | 236 ++++------
> drivers/regulator/tps65912-regulator.c | 783 ++++++++++-----------------------
> include/linux/mfd/tps65912.h | 256 +++++++----
> 9 files changed, 854 insertions(+), 1473 deletions(-)
> rewrite drivers/gpio/gpio-tps65912.c (68%)
> rewrite drivers/mfd/tps65912-core.c (96%)
> rewrite drivers/mfd/tps65912-i2c.c (92%)
> delete mode 100644 drivers/mfd/tps65912-irq.c
> rewrite drivers/mfd/tps65912-spi.c (91%)
> rewrite drivers/regulator/tps65912-regulator.c (94%)
Is there really no other way to split this up?
> diff --git a/drivers/gpio/gpio-tps65912.c b/drivers/gpio/gpio-tps65912.c
> dissimilarity index 68%
> index 9cdbc0c..a15d4e7 100644
> --- a/drivers/gpio/gpio-tps65912.c
> +++ b/drivers/gpio/gpio-tps65912.c
> @@ -1,153 +1,138 @@
> -/*
> - * Copyright 2011 Texas Instruments Inc.
> - *
> - * Author: Margarita Olaya <magi@...mlogic.co.uk>
> - *
> - * This program is free software; you can redistribute it and/or modify it
> - * under the terms of the GNU General Public License as published by the
> - * Free Software Foundation; either version 2 of the License, or (at your
> - * option) any later version.
> - *
> - * This driver is based on wm8350 implementation.
> - */
> -
> -#include <linux/kernel.h>
> -#include <linux/module.h>
> -#include <linux/errno.h>
> -#include <linux/gpio.h>
> -#include <linux/mfd/core.h>
> -#include <linux/platform_device.h>
> -#include <linux/seq_file.h>
> -#include <linux/slab.h>
> -#include <linux/mfd/tps65912.h>
> -
> -struct tps65912_gpio_data {
> - struct tps65912 *tps65912;
> - struct gpio_chip gpio_chip;
> -};
> -
> -#define to_tgd(gc) container_of(gc, struct tps65912_gpio_data, gpio_chip)
> -
> -static int tps65912_gpio_get(struct gpio_chip *gc, unsigned offset)
> -{
> - struct tps65912_gpio_data *tps65912_gpio = to_tgd(gc);
> - struct tps65912 *tps65912 = tps65912_gpio->tps65912;
> - int val;
> -
> - val = tps65912_reg_read(tps65912, TPS65912_GPIO1 + offset);
> -
> - if (val & GPIO_STS_MASK)
> - return 1;
> -
> - return 0;
> -}
> -
> -static void tps65912_gpio_set(struct gpio_chip *gc, unsigned offset,
> - int value)
> -{
> - struct tps65912_gpio_data *tps65912_gpio = to_tgd(gc);
> - struct tps65912 *tps65912 = tps65912_gpio->tps65912;
> -
> - if (value)
> - tps65912_set_bits(tps65912, TPS65912_GPIO1 + offset,
> - GPIO_SET_MASK);
> - else
> - tps65912_clear_bits(tps65912, TPS65912_GPIO1 + offset,
> - GPIO_SET_MASK);
> -}
> -
> -static int tps65912_gpio_output(struct gpio_chip *gc, unsigned offset,
> - int value)
> -{
> - struct tps65912_gpio_data *tps65912_gpio = to_tgd(gc);
> - struct tps65912 *tps65912 = tps65912_gpio->tps65912;
> -
> - /* Set the initial value */
> - tps65912_gpio_set(gc, offset, value);
> -
> - return tps65912_set_bits(tps65912, TPS65912_GPIO1 + offset,
> - GPIO_CFG_MASK);
> -}
> -
> -static int tps65912_gpio_input(struct gpio_chip *gc, unsigned offset)
> -{
> - struct tps65912_gpio_data *tps65912_gpio = to_tgd(gc);
> - struct tps65912 *tps65912 = tps65912_gpio->tps65912;
> -
> - return tps65912_clear_bits(tps65912, TPS65912_GPIO1 + offset,
> - GPIO_CFG_MASK);
> -}
> -
> -static struct gpio_chip template_chip = {
> - .label = "tps65912",
> - .owner = THIS_MODULE,
> - .direction_input = tps65912_gpio_input,
> - .direction_output = tps65912_gpio_output,
> - .get = tps65912_gpio_get,
> - .set = tps65912_gpio_set,
> - .can_sleep = true,
> - .ngpio = 5,
> - .base = -1,
> -};
> -
> -static int tps65912_gpio_probe(struct platform_device *pdev)
> -{
> - struct tps65912 *tps65912 = dev_get_drvdata(pdev->dev.parent);
> - struct tps65912_board *pdata = dev_get_platdata(tps65912->dev);
> - struct tps65912_gpio_data *tps65912_gpio;
> - int ret;
> -
> - tps65912_gpio = devm_kzalloc(&pdev->dev, sizeof(*tps65912_gpio),
> - GFP_KERNEL);
> - if (tps65912_gpio == NULL)
> - return -ENOMEM;
> -
> - tps65912_gpio->tps65912 = tps65912;
> - tps65912_gpio->gpio_chip = template_chip;
> - tps65912_gpio->gpio_chip.dev = &pdev->dev;
> - if (pdata && pdata->gpio_base)
> - tps65912_gpio->gpio_chip.base = pdata->gpio_base;
> -
> - ret = gpiochip_add(&tps65912_gpio->gpio_chip);
> - if (ret < 0) {
> - dev_err(&pdev->dev, "Failed to register gpiochip, %d\n", ret);
> - return ret;
> - }
> -
> - platform_set_drvdata(pdev, tps65912_gpio);
> -
> - return ret;
> -}
> -
> -static int tps65912_gpio_remove(struct platform_device *pdev)
> -{
> - struct tps65912_gpio_data *tps65912_gpio = platform_get_drvdata(pdev);
> -
> - gpiochip_remove(&tps65912_gpio->gpio_chip);
> - return 0;
> -}
> -
> -static struct platform_driver tps65912_gpio_driver = {
> - .driver = {
> - .name = "tps65912-gpio",
> - },
> - .probe = tps65912_gpio_probe,
> - .remove = tps65912_gpio_remove,
> -};
> -
> -static int __init tps65912_gpio_init(void)
> -{
> - return platform_driver_register(&tps65912_gpio_driver);
> -}
> -subsys_initcall(tps65912_gpio_init);
> -
> -static void __exit tps65912_gpio_exit(void)
> -{
> - platform_driver_unregister(&tps65912_gpio_driver);
> -}
> -module_exit(tps65912_gpio_exit);
> -
> -MODULE_AUTHOR("Margarita Olaya Cabrera <magi@...mlogic.co.uk>");
> -MODULE_DESCRIPTION("GPIO interface for TPS65912 PMICs");
> -MODULE_LICENSE("GPL v2");
> -MODULE_ALIAS("platform:tps65912-gpio");
> +/*
> + * gpio-tps65912.c -- TI TPS65912x GPIO Driver
> + *
> + * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
> + *
> + * Author: Andrew F. Davis <afd@...com>
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any
> + * kind, whether expressed or implied; without even the implied warranty
> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License version 2 for more details.
> + *
> + * Based on the Arizona GPIO driver and the previous TPS65912 driver by
> + * Margarita Olaya Cabrera <magi@...mlogic.co.uk>
> + */
> +
> +#include <linux/gpio.h>
> +#include <linux/module.h>
> +#include <linux/of_device.h>
> +
> +#include <linux/mfd/tps65912.h>
> +
> +struct tps65912_gpio {
> + struct tps65912 *tps;
> + struct gpio_chip gpio_chip;
> +};
> +
> +#define to_gpio(gc) container_of(gc, struct tps65912_gpio, gpio_chip)
> +
> +static int tps65912_gpio_get(struct gpio_chip *gc, unsigned offset)
> +{
> + struct tps65912_gpio *gpio = to_gpio(gc);
> + int ret, val;
> +
> + ret = regmap_read(gpio->tps->regmap, TPS65912_GPIO1 + offset, &val);
> + if (ret < 0)
> + return ret;
> +
> + return val & GPIO_STS_MASK;
> +}
> +
> +static void tps65912_gpio_set(struct gpio_chip *gc, unsigned offset,
> + int value)
> +{
> + struct tps65912_gpio *gpio = to_gpio(gc);
> +
> + regmap_update_bits(gpio->tps->regmap, TPS65912_GPIO1 + offset,
> + GPIO_SET_MASK, value ? GPIO_SET_MASK : 0);
> +}
> +
> +static int tps65912_gpio_output(struct gpio_chip *gc, unsigned offset,
> + int value)
> +{
> + struct tps65912_gpio *gpio = to_gpio(gc);
> +
> + /* Set the initial value */
> + tps65912_gpio_set(gc, offset, value);
> +
> + return regmap_update_bits(gpio->tps->regmap, TPS65912_GPIO1 + offset,
> + GPIO_CFG_MASK, GPIO_CFG_MASK);
> +}
> +
> +static int tps65912_gpio_input(struct gpio_chip *gc, unsigned offset)
> +{
> + struct tps65912_gpio *gpio = to_gpio(gc);
> +
> + return regmap_update_bits(gpio->tps->regmap, TPS65912_GPIO1 + offset,
> + GPIO_CFG_MASK, 0);
> +}
> +
> +static const struct of_device_id tps65912_gpio_of_match_table[] = {
> + { .compatible = "ti,tps65912-gpio", },
> + { /*sentinel*/ },
> +};
> +MODULE_DEVICE_TABLE(of, tps65912_gpio_of_match_table);
> +
> +static struct gpio_chip template_chip = {
> + .label = "tps65912-gpio",
> + .owner = THIS_MODULE,
> + .direction_input = tps65912_gpio_input,
> + .direction_output = tps65912_gpio_output,
> + .get = tps65912_gpio_get,
> + .set = tps65912_gpio_set,
> + .can_sleep = true,
> + .ngpio = 5,
> + .base = -1,
> +};
> +
> +static int tps65912_gpio_probe(struct platform_device *pdev)
> +{
> + struct tps65912_gpio *gpio;
> + int ret;
> +
> + gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);
> + if (!gpio)
> + return -ENOMEM;
> +
> + gpio->tps = dev_get_drvdata(pdev->dev.parent);
> + gpio->gpio_chip = template_chip;
> + ret = gpiochip_add(&gpio->gpio_chip);
> + if (ret < 0) {
> + dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
> + return ret;
> + }
> +
> + platform_set_drvdata(pdev, gpio);
> +
> + return 0;
> +}
> +
> +static int tps65912_gpio_remove(struct platform_device *pdev)
> +{
> + struct tps65912_gpio *gpio = platform_get_drvdata(pdev);
> +
> + gpiochip_remove(&gpio->gpio_chip);
> +
> + return 0;
> +}
> +
> +static struct platform_driver tps65912_gpio_driver = {
> + .driver = {
> + .name = "tps65912-gpio",
> + .of_match_table = tps65912_gpio_of_match_table,
> + },
> + .probe = tps65912_gpio_probe,
> + .remove = tps65912_gpio_remove,
> +};
> +
> +module_platform_driver(tps65912_gpio_driver);
> +
> +MODULE_AUTHOR("Andrew F. Davis <afd@...com>");
> +MODULE_DESCRIPTION("TPS65912 GPIO driver");
> +MODULE_ALIAS("platform:tps65912-gpio");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 99d6367..3a36b37 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -1168,27 +1168,25 @@ config MFD_TPS65910
> Power Management chips.
>
> config MFD_TPS65912
> - bool "TI TPS65912 Power Management chip"
> - depends on GPIOLIB
> + select REGMAP
> + select REGMAP_IRQ
> select MFD_CORE
> - help
> - If you say yes here you get support for the TPS65912 series of
> - PM chips.
> + tristate
Better to put this at the top, as excepted.
> config MFD_TPS65912_I2C
> - bool "TI TPS65912 Power Management chip with I2C"
> - select MFD_CORE
> + tristate "TI TPS65912 Power Management chip with I2C"
> select MFD_TPS65912
> - depends on I2C=y && GPIOLIB
> + select REGMAP_I2C
> + depends on I2C
> help
> If you say yes here you get support for the TPS65912 series of
> PM chips with I2C interface.
>
> config MFD_TPS65912_SPI
> - bool "TI TPS65912 Power Management chip with SPI"
> - select MFD_CORE
> + tristate "TI TPS65912 Power Management chip with SPI"
> select MFD_TPS65912
> - depends on SPI_MASTER && GPIOLIB
> + select REGMAP_SPI
> + depends on SPI_MASTER
> help
> If you say yes here you get support for the TPS65912 series of
> PM chips with SPI interface.
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index a59e3fc..49c3530 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -69,8 +69,7 @@ obj-$(CONFIG_TPS6507X) += tps6507x.o
> obj-$(CONFIG_MFD_TPS65217) += tps65217.o
> obj-$(CONFIG_MFD_TPS65218) += tps65218.o
> obj-$(CONFIG_MFD_TPS65910) += tps65910.o
> -tps65912-objs := tps65912-core.o tps65912-irq.o
> -obj-$(CONFIG_MFD_TPS65912) += tps65912.o
> +obj-$(CONFIG_MFD_TPS65912) += tps65912-core.o
> obj-$(CONFIG_MFD_TPS65912_I2C) += tps65912-i2c.o
> obj-$(CONFIG_MFD_TPS65912_SPI) += tps65912-spi.o
> obj-$(CONFIG_MFD_TPS80031) += tps80031.o
> diff --git a/drivers/mfd/tps65912-core.c b/drivers/mfd/tps65912-core.c
> dissimilarity index 96%
> index 1f82d60..06b27f5 100644
> --- a/drivers/mfd/tps65912-core.c
> +++ b/drivers/mfd/tps65912-core.c
> @@ -1,175 +1,113 @@
> -/*
> - * tps65912-core.c -- TI TPS65912x
> - *
> - * Copyright 2011 Texas Instruments Inc.
> - *
> - * Author: Margarita Olaya Cabrera <magi@...mlogic.co.uk>
> - *
> - * This program is free software; you can redistribute it and/or modify it
> - * under the terms of the GNU General Public License as published by the
> - * Free Software Foundation; either version 2 of the License, or (at your
> - * option) any later version.
> - *
> - * This driver is based on wm8350 implementation.
> - */
> -
> -#include <linux/module.h>
> -#include <linux/moduleparam.h>
> -#include <linux/slab.h>
> -#include <linux/gpio.h>
> -#include <linux/mfd/core.h>
> -#include <linux/mfd/tps65912.h>
> -
> -static const struct mfd_cell tps65912s[] = {
> - {
> - .name = "tps65912-pmic",
> - },
> -};
> -
> -int tps65912_set_bits(struct tps65912 *tps65912, u8 reg, u8 mask)
> -{
> - u8 data;
> - int err;
> -
> - mutex_lock(&tps65912->io_mutex);
> -
> - err = tps65912->read(tps65912, reg, 1, &data);
> - if (err) {
> - dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg);
> - goto out;
> - }
> -
> - data |= mask;
> - err = tps65912->write(tps65912, reg, 1, &data);
> - if (err)
> - dev_err(tps65912->dev, "Write to reg 0x%x failed\n", reg);
> -
> -out:
> - mutex_unlock(&tps65912->io_mutex);
> - return err;
> -}
> -EXPORT_SYMBOL_GPL(tps65912_set_bits);
> -
> -int tps65912_clear_bits(struct tps65912 *tps65912, u8 reg, u8 mask)
> -{
> - u8 data;
> - int err;
> -
> - mutex_lock(&tps65912->io_mutex);
> - err = tps65912->read(tps65912, reg, 1, &data);
> - if (err) {
> - dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg);
> - goto out;
> - }
> -
> - data &= ~mask;
> - err = tps65912->write(tps65912, reg, 1, &data);
> - if (err)
> - dev_err(tps65912->dev, "Write to reg 0x%x failed\n", reg);
> -
> -out:
> - mutex_unlock(&tps65912->io_mutex);
> - return err;
> -}
> -EXPORT_SYMBOL_GPL(tps65912_clear_bits);
> -
> -static inline int tps65912_read(struct tps65912 *tps65912, u8 reg)
> -{
> - u8 val;
> - int err;
> -
> - err = tps65912->read(tps65912, reg, 1, &val);
> - if (err < 0)
> - return err;
> -
> - return val;
> -}
> -
> -static inline int tps65912_write(struct tps65912 *tps65912, u8 reg, u8 val)
> -{
> - return tps65912->write(tps65912, reg, 1, &val);
> -}
> -
> -int tps65912_reg_read(struct tps65912 *tps65912, u8 reg)
> -{
> - int data;
> -
> - mutex_lock(&tps65912->io_mutex);
> -
> - data = tps65912_read(tps65912, reg);
> - if (data < 0)
> - dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg);
> -
> - mutex_unlock(&tps65912->io_mutex);
> - return data;
> -}
> -EXPORT_SYMBOL_GPL(tps65912_reg_read);
> -
> -int tps65912_reg_write(struct tps65912 *tps65912, u8 reg, u8 val)
> -{
> - int err;
> -
> - mutex_lock(&tps65912->io_mutex);
> -
> - err = tps65912_write(tps65912, reg, val);
> - if (err < 0)
> - dev_err(tps65912->dev, "Write for reg 0x%x failed\n", reg);
> -
> - mutex_unlock(&tps65912->io_mutex);
> - return err;
> -}
> -EXPORT_SYMBOL_GPL(tps65912_reg_write);
> -
> -int tps65912_device_init(struct tps65912 *tps65912)
> -{
> - struct tps65912_board *pmic_plat_data = dev_get_platdata(tps65912->dev);
> - struct tps65912_platform_data *init_data;
> - int ret, dcdc_avs, value;
> -
> - init_data = kzalloc(sizeof(struct tps65912_platform_data), GFP_KERNEL);
> - if (init_data == NULL)
> - return -ENOMEM;
> -
> - mutex_init(&tps65912->io_mutex);
> - dev_set_drvdata(tps65912->dev, tps65912);
> -
> - dcdc_avs = (pmic_plat_data->is_dcdc1_avs << 0 |
> - pmic_plat_data->is_dcdc2_avs << 1 |
> - pmic_plat_data->is_dcdc3_avs << 2 |
> - pmic_plat_data->is_dcdc4_avs << 3);
> - if (dcdc_avs) {
> - tps65912->read(tps65912, TPS65912_I2C_SPI_CFG, 1, &value);
> - dcdc_avs |= value;
> - tps65912->write(tps65912, TPS65912_I2C_SPI_CFG, 1, &dcdc_avs);
> - }
> -
> - ret = mfd_add_devices(tps65912->dev, -1,
> - tps65912s, ARRAY_SIZE(tps65912s),
> - NULL, 0, NULL);
> - if (ret < 0)
> - goto err;
> -
> - init_data->irq = pmic_plat_data->irq;
> - init_data->irq_base = pmic_plat_data->irq_base;
> - ret = tps65912_irq_init(tps65912, init_data->irq, init_data);
> - if (ret < 0)
> - goto err;
> -
> - kfree(init_data);
> - return ret;
> -
> -err:
> - kfree(init_data);
> - mfd_remove_devices(tps65912->dev);
> - return ret;
> -}
> -
> -void tps65912_device_exit(struct tps65912 *tps65912)
> -{
> - mfd_remove_devices(tps65912->dev);
> - tps65912_irq_exit(tps65912);
> -}
> -
> -MODULE_AUTHOR("Margarita Olaya <magi@...mlogic.co.uk>");
> -MODULE_DESCRIPTION("TPS65912x chip family multi-function driver");
> -MODULE_LICENSE("GPL");
> +/*
> + * tps65912-i2c.c -- Core functions for TI TPS65912x PMIC
Please remove the filename, as these have a habit of becoming
incorrect. I think it's even wrong here isn't it?
> + * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
> + *
> + * Author: Andrew F. Davis <afd@...com>
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any
> + * kind, whether expressed or implied; without even the implied warranty
> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License version 2 for more details.
> + *
> + * Based on the TPS65218 driver and the previous TPS65912 driver by
> + * Margarita Olaya Cabrera <magi@...mlogic.co.uk>
> + */
> +
> +#include <linux/interrupt.h>
> +#include <linux/module.h>
> +#include <linux/of_device.h>
> +
No need for the '\n'.
> +#include <linux/mfd/tps65912.h>
> +
> +#define TPS65912_IRQ(_name, _reg, _offset) \
> + [TPS65912_IRQ_ ## _name] = { \
> + .mask = TPS65912_ ## _reg ## _ ## _name, \
> + .reg_offset = _offset, \
> + }
If you find this useful, then others will too.
Please submit this to Mark Brown.
> +static const struct regmap_irq tps65912_irqs[] = {
> + /* INT_STS IRQs */
> + TPS65912_IRQ(PWRHOLD_F, INT_STS, 0),
> + TPS65912_IRQ(VMON, INT_STS, 0),
> + TPS65912_IRQ(PWRON, INT_STS, 0),
> + TPS65912_IRQ(PWRON_LP, INT_STS, 0),
> + TPS65912_IRQ(PWRHOLD_R, INT_STS, 0),
> + TPS65912_IRQ(HOTDIE, INT_STS, 0),
> + TPS65912_IRQ(GPIO1_R, INT_STS, 0),
> + TPS65912_IRQ(GPIO1_F, INT_STS, 0),
> + /* INT_STS2 IRQs */
> + TPS65912_IRQ(GPIO2_R, INT_STS2, 1),
> + TPS65912_IRQ(GPIO2_F, INT_STS2, 1),
> + TPS65912_IRQ(GPIO3_R, INT_STS2, 1),
> + TPS65912_IRQ(GPIO3_F, INT_STS2, 1),
> + TPS65912_IRQ(GPIO4_R, INT_STS2, 1),
> + TPS65912_IRQ(GPIO4_F, INT_STS2, 1),
> + TPS65912_IRQ(GPIO5_R, INT_STS2, 1),
> + TPS65912_IRQ(GPIO5_F, INT_STS2, 1),
> + /* INT_STS3 IRQs */
> + TPS65912_IRQ(PGOOD_DCDC1, INT_STS3, 2),
> + TPS65912_IRQ(PGOOD_DCDC2, INT_STS3, 2),
> + TPS65912_IRQ(PGOOD_DCDC3, INT_STS3, 2),
> + TPS65912_IRQ(PGOOD_DCDC4, INT_STS3, 2),
> + TPS65912_IRQ(PGOOD_LDO1, INT_STS3, 2),
> + TPS65912_IRQ(PGOOD_LDO2, INT_STS3, 2),
> + TPS65912_IRQ(PGOOD_LDO3, INT_STS3, 2),
> + TPS65912_IRQ(PGOOD_LDO4, INT_STS3, 2),
> + /* INT_STS4 IRQs */
> + TPS65912_IRQ(PGOOD_LDO5, INT_STS4, 3),
> + TPS65912_IRQ(PGOOD_LDO6, INT_STS4, 3),
> + TPS65912_IRQ(PGOOD_LDO7, INT_STS4, 3),
> + TPS65912_IRQ(PGOOD_LDO8, INT_STS4, 3),
> + TPS65912_IRQ(PGOOD_LDO9, INT_STS4, 3),
> + TPS65912_IRQ(PGOOD_LDO10, INT_STS4, 3),
> +};
> +
> +static struct regmap_irq_chip tps65912_irq_chip = {
> + .name = "tps65912",
> + .irqs = tps65912_irqs,
> + .num_irqs = ARRAY_SIZE(tps65912_irqs),
> +
Rid the '\n' please.
> + .num_regs = 4,
Why do you have 2 num_regs entries?
> + .irq_reg_stride = 2,
> + .mask_base = TPS65912_INT_MSK,
> + .status_base = TPS65912_INT_STS,
> + .ack_base = TPS65912_INT_STS,
> + .init_ack_masked = true,
> +};
> +
> +int tps65912_device_init(struct tps65912 *tps)
> +{
> + int ret;
> +
> + ret = regmap_add_irq_chip(tps->regmap, tps->irq, IRQF_ONESHOT, 0,
> + &tps65912_irq_chip, &tps->irq_data);
> + if (ret < 0)
> + return ret;
> +
> + ret = of_platform_populate(tps->dev->of_node, NULL, NULL, tps->dev);
> + if (ret < 0)
> + goto err_irq;
> +
> + return 0;
> +
> +err_irq:
> + regmap_del_irq_chip(tps->irq, tps->irq_data);
> +
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(tps65912_device_init);
> +
> +void tps65912_device_exit(struct tps65912 *tps)
> +{
> + regmap_del_irq_chip(tps->irq, tps->irq_data);
> +}
> +EXPORT_SYMBOL_GPL(tps65912_device_exit);
> +
> +MODULE_AUTHOR("Andrew F. Davis <afd@...com>");
> +MODULE_DESCRIPTION("TPS65912x MFD Driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/mfd/tps65912-i2c.c b/drivers/mfd/tps65912-i2c.c
> dissimilarity index 92%
> index 7e55640..feb1e5a 100644
> --- a/drivers/mfd/tps65912-i2c.c
> +++ b/drivers/mfd/tps65912-i2c.c
> @@ -1,139 +1,94 @@
> -/*
> - * tps65912-i2c.c -- I2C access for TI TPS65912x PMIC
> - *
> - * Copyright 2011 Texas Instruments Inc.
> - *
> - * Author: Margarita Olaya Cabrera <magi@...mlogic.co.uk>
> - *
> - * This program is free software; you can redistribute it and/or modify it
> - * under the terms of the GNU General Public License as published by the
> - * Free Software Foundation; either version 2 of the License, or (at your
> - * option) any later version.
> - *
> - * This driver is based on wm8350 implementation.
> - */
> -
> -#include <linux/module.h>
> -#include <linux/moduleparam.h>
> -#include <linux/init.h>
> -#include <linux/slab.h>
> -#include <linux/gpio.h>
> -#include <linux/i2c.h>
> -#include <linux/mfd/core.h>
> -#include <linux/mfd/tps65912.h>
> -
> -static int tps65912_i2c_read(struct tps65912 *tps65912, u8 reg,
> - int bytes, void *dest)
> -{
> - struct i2c_client *i2c = tps65912->control_data;
> - struct i2c_msg xfer[2];
> - int ret;
> -
> - /* Write register */
> - xfer[0].addr = i2c->addr;
> - xfer[0].flags = 0;
> - xfer[0].len = 1;
> - xfer[0].buf = ®
> -
> - /* Read data */
> - xfer[1].addr = i2c->addr;
> - xfer[1].flags = I2C_M_RD;
> - xfer[1].len = bytes;
> - xfer[1].buf = dest;
> -
> - ret = i2c_transfer(i2c->adapter, xfer, 2);
> - if (ret == 2)
> - ret = 0;
> - else if (ret >= 0)
> - ret = -EIO;
> - return ret;
> -}
> -
> -static int tps65912_i2c_write(struct tps65912 *tps65912, u8 reg,
> - int bytes, void *src)
> -{
> - struct i2c_client *i2c = tps65912->control_data;
> - /* we add 1 byte for device register */
> - u8 msg[TPS6591X_MAX_REGISTER + 1];
> - int ret;
> -
> - if (bytes > TPS6591X_MAX_REGISTER)
> - return -EINVAL;
> -
> - msg[0] = reg;
> - memcpy(&msg[1], src, bytes);
> -
> - ret = i2c_master_send(i2c, msg, bytes + 1);
> - if (ret < 0)
> - return ret;
> - if (ret != bytes + 1)
> - return -EIO;
> -
> - return 0;
> -}
> -
> -static int tps65912_i2c_probe(struct i2c_client *i2c,
> - const struct i2c_device_id *id)
> -{
> - struct tps65912 *tps65912;
> -
> - tps65912 = devm_kzalloc(&i2c->dev,
> - sizeof(struct tps65912), GFP_KERNEL);
> - if (tps65912 == NULL)
> - return -ENOMEM;
> -
> - i2c_set_clientdata(i2c, tps65912);
> - tps65912->dev = &i2c->dev;
> - tps65912->control_data = i2c;
> - tps65912->read = tps65912_i2c_read;
> - tps65912->write = tps65912_i2c_write;
> -
> - return tps65912_device_init(tps65912);
> -}
> -
> -static int tps65912_i2c_remove(struct i2c_client *i2c)
> -{
> - struct tps65912 *tps65912 = i2c_get_clientdata(i2c);
> -
> - tps65912_device_exit(tps65912);
> -
> - return 0;
> -}
> -
> -static const struct i2c_device_id tps65912_i2c_id[] = {
> - {"tps65912", 0 },
> - { }
> -};
> -MODULE_DEVICE_TABLE(i2c, tps65912_i2c_id);
> -
> -static struct i2c_driver tps65912_i2c_driver = {
> - .driver = {
> - .name = "tps65912",
> - },
> - .probe = tps65912_i2c_probe,
> - .remove = tps65912_i2c_remove,
> - .id_table = tps65912_i2c_id,
> -};
> -
> -static int __init tps65912_i2c_init(void)
> -{
> - int ret;
> -
> - ret = i2c_add_driver(&tps65912_i2c_driver);
> - if (ret != 0)
> - pr_err("Failed to register TPS65912 I2C driver: %d\n", ret);
> -
> - return ret;
> -}
> -/* init early so consumer devices can complete system boot */
> -subsys_initcall(tps65912_i2c_init);
> -
> -static void __exit tps65912_i2c_exit(void)
> -{
> - i2c_del_driver(&tps65912_i2c_driver);
> -}
> -module_exit(tps65912_i2c_exit);
> -
> -MODULE_AUTHOR("Margarita Olaya <magi@...mlogic.co.uk>");
> -MODULE_DESCRIPTION("TPS6591x chip family multi-function driver");
> -MODULE_LICENSE("GPL");
> +/*
> + * tps65912-i2c.c -- I2C access driver for TI TPS65912x PMIC
Remove the filename please.
> + * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
> + *
> + * Author: Andrew F. Davis <afd@...com>
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any
> + * kind, whether expressed or implied; without even the implied warranty
> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License version 2 for more details.
> + *
> + * Based on the TPS65218 driver and the previous TPS65912 driver by
> + * Margarita Olaya Cabrera <magi@...mlogic.co.uk>
> + */
> +
> +#include <linux/i2c.h>
> +#include <linux/module.h>
> +#include <linux/of_device.h>
> +#include <linux/regmap.h>
> +
Remove the '\n'.
> +#include <linux/mfd/tps65912.h>
> +
> +static const struct of_device_id tps65912_i2c_of_match_table[] = {
> + { .compatible = "ti,tps65912", },
> + { /*sentinel*/ }
No need for this comment. We know what { } does.
> +};
> +
> +static int tps65912_i2c_probe(struct i2c_client *client,
> + const struct i2c_device_id *ids)
> +{
> + struct tps65912 *tps;
> + const struct of_device_id *match;
> +
> + match = of_match_device(tps65912_i2c_of_match_table, &client->dev);
> + if (!match) {
> + dev_err(&client->dev, "Failed to find matching DT id\n");
> + return -EINVAL;
> + }
Why are you matching?
> + tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
> + if (!tps)
> + return -ENOMEM;
> +
> + i2c_set_clientdata(client, tps);
> + tps->dev = &client->dev;
> + tps->irq = client->irq;
> +
> + tps->regmap = devm_regmap_init_i2c(client, &tps65912_regmap_config);
> + if (IS_ERR(tps->regmap)) {
> + int ret = PTR_ERR(tps->regmap);
Neater just to declare 'int ret' up the top like we always do.
> + dev_err(tps->dev, "Failed to allocate register map: %d\n",
> + ret);
> + return ret;
> + }
> +
> + return tps65912_device_init(tps);
> +}
> +
> +static int tps65912_i2c_remove(struct i2c_client *client)
> +{
> + struct tps65912 *tps = i2c_get_clientdata(client);
> +
> + tps65912_device_exit(tps);
Why don't you have tps65912_device_exit() provide an error code and do:
return tps65912_device_exit(tps);
> + return 0;
> +}
> +
> +static const struct i2c_device_id tps65912_i2c_id_table[] = {
> + { "tps65912", TPS65912 },
This doesn't appear to be used?
> + { /*sentinel*/ },
As before.
> +};
> +MODULE_DEVICE_TABLE(i2c, tps65912_i2c_id_table);
> +
> +static struct i2c_driver tps65912_i2c_driver = {
> + .driver = {
> + .name = "tps65912",
> + .of_match_table = tps65912_i2c_of_match_table,
> + },
> + .probe = tps65912_i2c_probe,
> + .remove = tps65912_i2c_remove,
> + .id_table = tps65912_i2c_id_table,
> +};
> +
> +module_i2c_driver(tps65912_i2c_driver);
> +
> +MODULE_AUTHOR("Andrew F. Davis <afd@...com>");
> +MODULE_DESCRIPTION("TPS65912x I2C Interface Driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/mfd/tps65912-irq.c b/drivers/mfd/tps65912-irq.c
> deleted file mode 100644
> index db2c29c..0000000
> --- a/drivers/mfd/tps65912-irq.c
> +++ /dev/null
> @@ -1,217 +0,0 @@
> -/*
> - * tps65912-irq.c -- TI TPS6591x
> - *
> - * Copyright 2011 Texas Instruments Inc.
> - *
> - * Author: Margarita Olaya <magi@...mlogic.co.uk>
> - *
> - * This program is free software; you can redistribute it and/or modify it
> - * under the terms of the GNU General Public License as published by the
> - * Free Software Foundation; either version 2 of the License, or (at your
> - * option) any later version.
> - *
> - * This driver is based on wm8350 implementation.
> - */
> -
> -#include <linux/kernel.h>
> -#include <linux/module.h>
> -#include <linux/bug.h>
> -#include <linux/device.h>
> -#include <linux/interrupt.h>
> -#include <linux/irq.h>
> -#include <linux/gpio.h>
> -#include <linux/mfd/tps65912.h>
> -
> -static inline int irq_to_tps65912_irq(struct tps65912 *tps65912,
> - int irq)
> -{
> - return irq - tps65912->irq_base;
> -}
> -
> -/*
> - * This is a threaded IRQ handler so can access I2C/SPI. Since the
> - * IRQ handler explicitly clears the IRQ it handles the IRQ line
> - * will be reasserted and the physical IRQ will be handled again if
> - * another interrupt is asserted while we run - in the normal course
> - * of events this is a rare occurrence so we save I2C/SPI reads. We're
> - * also assuming that it's rare to get lots of interrupts firing
> - * simultaneously so try to minimise I/O.
> - */
> -static irqreturn_t tps65912_irq(int irq, void *irq_data)
> -{
> - struct tps65912 *tps65912 = irq_data;
> - u32 irq_sts;
> - u32 irq_mask;
> - u8 reg;
> - int i;
> -
> -
> - tps65912->read(tps65912, TPS65912_INT_STS, 1, ®);
> - irq_sts = reg;
> - tps65912->read(tps65912, TPS65912_INT_STS2, 1, ®);
> - irq_sts |= reg << 8;
> - tps65912->read(tps65912, TPS65912_INT_STS3, 1, ®);
> - irq_sts |= reg << 16;
> - tps65912->read(tps65912, TPS65912_INT_STS4, 1, ®);
> - irq_sts |= reg << 24;
> -
> - tps65912->read(tps65912, TPS65912_INT_MSK, 1, ®);
> - irq_mask = reg;
> - tps65912->read(tps65912, TPS65912_INT_MSK2, 1, ®);
> - irq_mask |= reg << 8;
> - tps65912->read(tps65912, TPS65912_INT_MSK3, 1, ®);
> - irq_mask |= reg << 16;
> - tps65912->read(tps65912, TPS65912_INT_MSK4, 1, ®);
> - irq_mask |= reg << 24;
> -
> - irq_sts &= ~irq_mask;
> - if (!irq_sts)
> - return IRQ_NONE;
> -
> - for (i = 0; i < tps65912->irq_num; i++) {
> - if (!(irq_sts & (1 << i)))
> - continue;
> -
> - handle_nested_irq(tps65912->irq_base + i);
> - }
> -
> - /* Write the STS register back to clear IRQs we handled */
> - reg = irq_sts & 0xFF;
> - irq_sts >>= 8;
> - if (reg)
> - tps65912->write(tps65912, TPS65912_INT_STS, 1, ®);
> - reg = irq_sts & 0xFF;
> - irq_sts >>= 8;
> - if (reg)
> - tps65912->write(tps65912, TPS65912_INT_STS2, 1, ®);
> - reg = irq_sts & 0xFF;
> - irq_sts >>= 8;
> - if (reg)
> - tps65912->write(tps65912, TPS65912_INT_STS3, 1, ®);
> - reg = irq_sts & 0xFF;
> - if (reg)
> - tps65912->write(tps65912, TPS65912_INT_STS4, 1, ®);
> -
> - return IRQ_HANDLED;
> -}
> -
> -static void tps65912_irq_lock(struct irq_data *data)
> -{
> - struct tps65912 *tps65912 = irq_data_get_irq_chip_data(data);
> -
> - mutex_lock(&tps65912->irq_lock);
> -}
> -
> -static void tps65912_irq_sync_unlock(struct irq_data *data)
> -{
> - struct tps65912 *tps65912 = irq_data_get_irq_chip_data(data);
> - u32 reg_mask;
> - u8 reg;
> -
> - tps65912->read(tps65912, TPS65912_INT_MSK, 1, ®);
> - reg_mask = reg;
> - tps65912->read(tps65912, TPS65912_INT_MSK2, 1, ®);
> - reg_mask |= reg << 8;
> - tps65912->read(tps65912, TPS65912_INT_MSK3, 1, ®);
> - reg_mask |= reg << 16;
> - tps65912->read(tps65912, TPS65912_INT_MSK4, 1, ®);
> - reg_mask |= reg << 24;
> -
> - if (tps65912->irq_mask != reg_mask) {
> - reg = tps65912->irq_mask & 0xFF;
> - tps65912->write(tps65912, TPS65912_INT_MSK, 1, ®);
> - reg = tps65912->irq_mask >> 8 & 0xFF;
> - tps65912->write(tps65912, TPS65912_INT_MSK2, 1, ®);
> - reg = tps65912->irq_mask >> 16 & 0xFF;
> - tps65912->write(tps65912, TPS65912_INT_MSK3, 1, ®);
> - reg = tps65912->irq_mask >> 24 & 0xFF;
> - tps65912->write(tps65912, TPS65912_INT_MSK4, 1, ®);
> - }
> -
> - mutex_unlock(&tps65912->irq_lock);
> -}
> -
> -static void tps65912_irq_enable(struct irq_data *data)
> -{
> - struct tps65912 *tps65912 = irq_data_get_irq_chip_data(data);
> -
> - tps65912->irq_mask &= ~(1 << irq_to_tps65912_irq(tps65912, data->irq));
> -}
> -
> -static void tps65912_irq_disable(struct irq_data *data)
> -{
> - struct tps65912 *tps65912 = irq_data_get_irq_chip_data(data);
> -
> - tps65912->irq_mask |= (1 << irq_to_tps65912_irq(tps65912, data->irq));
> -}
> -
> -static struct irq_chip tps65912_irq_chip = {
> - .name = "tps65912",
> - .irq_bus_lock = tps65912_irq_lock,
> - .irq_bus_sync_unlock = tps65912_irq_sync_unlock,
> - .irq_disable = tps65912_irq_disable,
> - .irq_enable = tps65912_irq_enable,
> -};
> -
> -int tps65912_irq_init(struct tps65912 *tps65912, int irq,
> - struct tps65912_platform_data *pdata)
> -{
> - int ret, cur_irq;
> - int flags = IRQF_ONESHOT;
> - u8 reg;
> -
> - if (!irq) {
> - dev_warn(tps65912->dev, "No interrupt support, no core IRQ\n");
> - return 0;
> - }
> -
> - if (!pdata || !pdata->irq_base) {
> - dev_warn(tps65912->dev, "No interrupt support, no IRQ base\n");
> - return 0;
> - }
> -
> - /* Clear unattended interrupts */
> - tps65912->read(tps65912, TPS65912_INT_STS, 1, ®);
> - tps65912->write(tps65912, TPS65912_INT_STS, 1, ®);
> - tps65912->read(tps65912, TPS65912_INT_STS2, 1, ®);
> - tps65912->write(tps65912, TPS65912_INT_STS2, 1, ®);
> - tps65912->read(tps65912, TPS65912_INT_STS3, 1, ®);
> - tps65912->write(tps65912, TPS65912_INT_STS3, 1, ®);
> - tps65912->read(tps65912, TPS65912_INT_STS4, 1, ®);
> - tps65912->write(tps65912, TPS65912_INT_STS4, 1, ®);
> -
> - /* Mask top level interrupts */
> - tps65912->irq_mask = 0xFFFFFFFF;
> -
> - mutex_init(&tps65912->irq_lock);
> - tps65912->chip_irq = irq;
> - tps65912->irq_base = pdata->irq_base;
> -
> - tps65912->irq_num = TPS65912_NUM_IRQ;
> -
> - /* Register with genirq */
> - for (cur_irq = tps65912->irq_base;
> - cur_irq < tps65912->irq_num + tps65912->irq_base;
> - cur_irq++) {
> - irq_set_chip_data(cur_irq, tps65912);
> - irq_set_chip_and_handler(cur_irq, &tps65912_irq_chip,
> - handle_edge_irq);
> - irq_set_nested_thread(cur_irq, 1);
> - irq_clear_status_flags(cur_irq, IRQ_NOREQUEST | IRQ_NOPROBE);
> - }
> -
> - ret = request_threaded_irq(irq, NULL, tps65912_irq, flags,
> - "tps65912", tps65912);
> -
> - irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
> - if (ret != 0)
> - dev_err(tps65912->dev, "Failed to request IRQ: %d\n", ret);
> -
> - return ret;
> -}
> -
> -int tps65912_irq_exit(struct tps65912 *tps65912)
> -{
> - free_irq(tps65912->chip_irq, tps65912);
> - return 0;
> -}
> diff --git a/drivers/mfd/tps65912-spi.c b/drivers/mfd/tps65912-spi.c
> dissimilarity index 91%
> index de60ad9..d6ab929 100644
> --- a/drivers/mfd/tps65912-spi.c
> +++ b/drivers/mfd/tps65912-spi.c
> @@ -1,141 +1,95 @@
> -/*
> - * tps65912-spi.c -- SPI access for TI TPS65912x PMIC
> - *
> - * Copyright 2011 Texas Instruments Inc.
> - *
> - * Author: Margarita Olaya Cabrera <magi@...mlogic.co.uk>
> - *
> - * This program is free software; you can redistribute it and/or modify it
> - * under the terms of the GNU General Public License as published by the
> - * Free Software Foundation; either version 2 of the License, or (at your
> - * option) any later version.
> - *
> - * This driver is based on wm8350 implementation.
> - */
> -
> -#include <linux/module.h>
> -#include <linux/moduleparam.h>
> -#include <linux/init.h>
> -#include <linux/slab.h>
> -#include <linux/gpio.h>
> -#include <linux/spi/spi.h>
> -#include <linux/mfd/core.h>
> -#include <linux/mfd/tps65912.h>
> -
> -static int tps65912_spi_write(struct tps65912 *tps65912, u8 addr,
> - int bytes, void *src)
> -{
> - struct spi_device *spi = tps65912->control_data;
> - u8 *data = (u8 *) src;
> - int ret;
> - /* bit 23 is the read/write bit */
> - unsigned long spi_data = 1 << 23 | addr << 15 | *data;
> - struct spi_transfer xfer;
> - struct spi_message msg;
> - u32 tx_buf;
> -
> - tx_buf = spi_data;
> -
> - xfer.tx_buf = &tx_buf;
> - xfer.rx_buf = NULL;
> - xfer.len = sizeof(unsigned long);
> - xfer.bits_per_word = 24;
> -
> - spi_message_init(&msg);
> - spi_message_add_tail(&xfer, &msg);
> -
> - ret = spi_sync(spi, &msg);
> - return ret;
> -}
> -
> -static int tps65912_spi_read(struct tps65912 *tps65912, u8 addr,
> - int bytes, void *dest)
> -{
> - struct spi_device *spi = tps65912->control_data;
> - /* bit 23 is the read/write bit */
> - unsigned long spi_data = 0 << 23 | addr << 15;
> - struct spi_transfer xfer;
> - struct spi_message msg;
> - int ret;
> - u8 *data = (u8 *) dest;
> - u32 tx_buf, rx_buf;
> -
> - tx_buf = spi_data;
> - rx_buf = 0;
> -
> - xfer.tx_buf = &tx_buf;
> - xfer.rx_buf = &rx_buf;
> - xfer.len = sizeof(unsigned long);
> - xfer.bits_per_word = 24;
> -
> - spi_message_init(&msg);
> - spi_message_add_tail(&xfer, &msg);
> -
> - if (spi == NULL)
> - return 0;
> -
> - ret = spi_sync(spi, &msg);
> - if (ret == 0)
> - *data = (u8) (rx_buf & 0xFF);
> - return ret;
> -}
> -
> -static int tps65912_spi_probe(struct spi_device *spi)
> -{
> - struct tps65912 *tps65912;
> -
> - tps65912 = devm_kzalloc(&spi->dev,
> - sizeof(struct tps65912), GFP_KERNEL);
> - if (tps65912 == NULL)
> - return -ENOMEM;
> -
> - tps65912->dev = &spi->dev;
> - tps65912->control_data = spi;
> - tps65912->read = tps65912_spi_read;
> - tps65912->write = tps65912_spi_write;
> -
> - spi_set_drvdata(spi, tps65912);
> -
> - return tps65912_device_init(tps65912);
> -}
> -
> -static int tps65912_spi_remove(struct spi_device *spi)
> -{
> - struct tps65912 *tps65912 = spi_get_drvdata(spi);
> -
> - tps65912_device_exit(tps65912);
> -
> - return 0;
> -}
> -
> -static struct spi_driver tps65912_spi_driver = {
> - .driver = {
> - .name = "tps65912",
> - .owner = THIS_MODULE,
> - },
> - .probe = tps65912_spi_probe,
> - .remove = tps65912_spi_remove,
> -};
> -
> -static int __init tps65912_spi_init(void)
> -{
> - int ret;
> -
> - ret = spi_register_driver(&tps65912_spi_driver);
> - if (ret != 0)
> - pr_err("Failed to register TPS65912 SPI driver: %d\n", ret);
> -
> - return 0;
> -}
> -/* init early so consumer devices can complete system boot */
> -subsys_initcall(tps65912_spi_init);
> -
> -static void __exit tps65912_spi_exit(void)
> -{
> - spi_unregister_driver(&tps65912_spi_driver);
> -}
> -module_exit(tps65912_spi_exit);
> -
> -MODULE_AUTHOR("Margarita Olaya <magi@...mlogic.co.uk>");
> -MODULE_DESCRIPTION("SPI support for TPS65912 chip family mfd");
> -MODULE_LICENSE("GPL");
> +/*
> + * tps65912-spi.c -- SPI access driver for TI TPS65912x PMIC
All the same comments as the other files -- I'll not labour them.
Same goes for the rest of the file.
> + * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
> + *
> + * Author: Andrew F. Davis <afd@...com>
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any
> + * kind, whether expressed or implied; without even the implied warranty
> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License version 2 for more details.
> + *
> + * Based on the TPS65218 driver and the previous TPS65912 driver by
> + * Margarita Olaya Cabrera <magi@...mlogic.co.uk>
> + */
> +
> +#include <linux/spi/spi.h>
> +#include <linux/module.h>
> +#include <linux/of_device.h>
> +#include <linux/regmap.h>
Alphabetical.
> +#include <linux/mfd/tps65912.h>
> +
> +static const struct of_device_id tps65912_spi_of_match_table[] = {
> + { .compatible = "ti,tps65912", },
> + { /*sentinel*/ }
> +};
> +
> +static int tps65912_spi_probe(struct spi_device *spi)
> +{
> + struct tps65912 *tps;
> + const struct of_device_id *match;
> +
> + match = of_match_device(tps65912_spi_of_match_table, &spi->dev);
> + if (!match) {
> + dev_err(&spi->dev, "Failed to find matching DT id\n");
> + return -EINVAL;
> + }
Why are you matching?
> + tps = devm_kzalloc(&spi->dev, sizeof(*tps), GFP_KERNEL);
> + if (!tps)
> + return -ENOMEM;
> +
> + spi_set_drvdata(spi, tps);
> + tps->dev = &spi->dev;
> + tps->irq = spi->irq;
> +
> + tps->regmap = devm_regmap_init_spi(spi, &tps65912_regmap_config);
> + if (IS_ERR(tps->regmap)) {
> + int ret = PTR_ERR(tps->regmap);
> +
> + dev_err(tps->dev, "Failed to allocate register map: %d\n",
> + ret);
> +
> + return ret;
> + }
> +
> + return tps65912_device_init(tps);
> +}
> +
> +static int tps65912_spi_remove(struct spi_device *client)
> +{
> + struct tps65912 *tps = spi_get_drvdata(client);
> +
> + tps65912_device_exit(tps);
> +
> + return 0;
> +}
> +
> +static const struct spi_device_id tps65912_spi_id_table[] = {
> + { "tps65912", TPS65912 },
> + { /*sentinel*/ },
> +};
> +MODULE_DEVICE_TABLE(spi, tps65912_spi_id_table);
> +
> +static struct spi_driver tps65912_spi_driver = {
> + .driver = {
> + .name = "tps65912",
> + .owner = THIS_MODULE,
Remove this line.
> + .of_match_table = tps65912_spi_of_match_table,
> + },
> + .probe = tps65912_spi_probe,
> + .remove = tps65912_spi_remove,
> + .id_table = tps65912_spi_id_table,
> +};
> +
> +module_spi_driver(tps65912_spi_driver);
> +
> +MODULE_AUTHOR("Andrew F. Davis <afd@...com>");
> +MODULE_DESCRIPTION("TPS65912x SPI Interface Driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/regulator/tps65912-regulator.c b/drivers/regulator/tps65912-regulator.c
> dissimilarity index 94%
> index 9503d54..3d72f6f 100644
> --- a/drivers/regulator/tps65912-regulator.c
> +++ b/drivers/regulator/tps65912-regulator.c
> @@ -1,541 +1,242 @@
> -/*
> - * tps65912.c -- TI tps65912
> - *
> - * Copyright 2011 Texas Instruments Inc.
> - *
> - * Author: Margarita Olaya Cabrera <magi@...mlogic.co.uk>
> - *
> - * This program is free software; you can redistribute it and/or modify it
> - * under the terms of the GNU General Public License as published by the
> - * Free Software Foundation; either version 2 of the License, or (at your
> - * option) any later version.
> - *
> - * This driver is based on wm8350 implementation.
> - */
> -
> -#include <linux/kernel.h>
> -#include <linux/module.h>
> -#include <linux/init.h>
> -#include <linux/err.h>
> -#include <linux/platform_device.h>
> -#include <linux/regulator/driver.h>
> -#include <linux/regulator/machine.h>
> -#include <linux/slab.h>
> -#include <linux/gpio.h>
> -#include <linux/mfd/tps65912.h>
> -
> -/* DCDC's */
> -#define TPS65912_REG_DCDC1 0
> -#define TPS65912_REG_DCDC2 1
> -#define TPS65912_REG_DCDC3 2
> -#define TPS65912_REG_DCDC4 3
> -
> -/* LDOs */
> -#define TPS65912_REG_LDO1 4
> -#define TPS65912_REG_LDO2 5
> -#define TPS65912_REG_LDO3 6
> -#define TPS65912_REG_LDO4 7
> -#define TPS65912_REG_LDO5 8
> -#define TPS65912_REG_LDO6 9
> -#define TPS65912_REG_LDO7 10
> -#define TPS65912_REG_LDO8 11
> -#define TPS65912_REG_LDO9 12
> -#define TPS65912_REG_LDO10 13
> -
> -/* Number of step-down converters available */
> -#define TPS65912_NUM_DCDC 4
> -
> -/* Number of LDO voltage regulators available */
> -#define TPS65912_NUM_LDO 10
> -
> -/* Number of total regulators available */
> -#define TPS65912_NUM_REGULATOR (TPS65912_NUM_DCDC + TPS65912_NUM_LDO)
> -
> -#define TPS65912_REG_ENABLED 0x80
> -#define OP_SELREG_MASK 0x40
> -#define OP_SELREG_SHIFT 6
> -
> -struct tps_info {
> - const char *name;
> -};
> -
> -static struct tps_info tps65912_regs[] = {
> - {
> - .name = "DCDC1",
> - },
> - {
> - .name = "DCDC2",
> - },
> - {
> - .name = "DCDC3",
> - },
> - {
> - .name = "DCDC4",
> - },
> - {
> - .name = "LDO1",
> - },
> - {
> - .name = "LDO2",
> - },
> - {
> - .name = "LDO3",
> - },
> - {
> - .name = "LDO4",
> - },
> - {
> - .name = "LDO5",
> - },
> - {
> - .name = "LDO6",
> - },
> - {
> - .name = "LDO7",
> - },
> - {
> - .name = "LDO8",
> - },
> - {
> - .name = "LDO9",
> - },
> - {
> - .name = "LDO10",
> - },
> -};
> -
> -struct tps65912_reg {
> - struct regulator_desc desc[TPS65912_NUM_REGULATOR];
> - struct tps65912 *mfd;
> - struct regulator_dev *rdev[TPS65912_NUM_REGULATOR];
> - struct tps_info *info[TPS65912_NUM_REGULATOR];
> - /* for read/write access */
> - struct mutex io_lock;
> - int mode;
> - int (*get_ctrl_reg)(int);
> - int dcdc_range[TPS65912_NUM_DCDC];
> - int pwm_mode_reg;
> - int eco_reg;
> -};
> -
> -static const struct regulator_linear_range tps65912_ldo_ranges[] = {
> - REGULATOR_LINEAR_RANGE(800000, 0, 32, 25000),
> - REGULATOR_LINEAR_RANGE(1650000, 33, 60, 50000),
> - REGULATOR_LINEAR_RANGE(3100000, 61, 63, 100000),
> -};
> -
> -static int tps65912_get_range(struct tps65912_reg *pmic, int id)
> -{
> - struct tps65912 *mfd = pmic->mfd;
> - int range;
> -
> - switch (id) {
> - case TPS65912_REG_DCDC1:
> - range = tps65912_reg_read(mfd, TPS65912_DCDC1_LIMIT);
> - break;
> - case TPS65912_REG_DCDC2:
> - range = tps65912_reg_read(mfd, TPS65912_DCDC2_LIMIT);
> - break;
> - case TPS65912_REG_DCDC3:
> - range = tps65912_reg_read(mfd, TPS65912_DCDC3_LIMIT);
> - break;
> - case TPS65912_REG_DCDC4:
> - range = tps65912_reg_read(mfd, TPS65912_DCDC4_LIMIT);
> - break;
> - default:
> - return 0;
> - }
> -
> - if (range >= 0)
> - range = (range & DCDC_LIMIT_RANGE_MASK)
> - >> DCDC_LIMIT_RANGE_SHIFT;
> -
> - pmic->dcdc_range[id] = range;
> - return range;
> -}
> -
> -static unsigned long tps65912_vsel_to_uv_range0(u8 vsel)
> -{
> - unsigned long uv;
> -
> - uv = ((vsel * 12500) + 500000);
> - return uv;
> -}
> -
> -static unsigned long tps65912_vsel_to_uv_range1(u8 vsel)
> -{
> - unsigned long uv;
> -
> - uv = ((vsel * 12500) + 700000);
> - return uv;
> -}
> -
> -static unsigned long tps65912_vsel_to_uv_range2(u8 vsel)
> -{
> - unsigned long uv;
> -
> - uv = ((vsel * 25000) + 500000);
> - return uv;
> -}
> -
> -static unsigned long tps65912_vsel_to_uv_range3(u8 vsel)
> -{
> - unsigned long uv;
> -
> - if (vsel == 0x3f)
> - uv = 3800000;
> - else
> - uv = ((vsel * 50000) + 500000);
> -
> - return uv;
> -}
> -
> -static int tps65912_get_ctrl_register(int id)
> -{
> - if (id >= TPS65912_REG_DCDC1 && id <= TPS65912_REG_LDO4)
> - return id * 3 + TPS65912_DCDC1_AVS;
> - else if (id >= TPS65912_REG_LDO5 && id <= TPS65912_REG_LDO10)
> - return id - TPS65912_REG_LDO5 + TPS65912_LDO5;
> - else
> - return -EINVAL;
> -}
> -
> -static int tps65912_get_sel_register(struct tps65912_reg *pmic, int id)
> -{
> - struct tps65912 *mfd = pmic->mfd;
> - int opvsel;
> - u8 reg = 0;
> -
> - if (id >= TPS65912_REG_DCDC1 && id <= TPS65912_REG_LDO4) {
> - opvsel = tps65912_reg_read(mfd, id * 3 + TPS65912_DCDC1_OP);
> - if (opvsel & OP_SELREG_MASK)
> - reg = id * 3 + TPS65912_DCDC1_AVS;
> - else
> - reg = id * 3 + TPS65912_DCDC1_OP;
> - } else if (id >= TPS65912_REG_LDO5 && id <= TPS65912_REG_LDO10) {
> - reg = id - TPS65912_REG_LDO5 + TPS65912_LDO5;
> - } else {
> - return -EINVAL;
> - }
> -
> - return reg;
> -}
> -
> -static int tps65912_get_mode_regiters(struct tps65912_reg *pmic, int id)
> -{
> - switch (id) {
> - case TPS65912_REG_DCDC1:
> - pmic->pwm_mode_reg = TPS65912_DCDC1_CTRL;
> - pmic->eco_reg = TPS65912_DCDC1_AVS;
> - break;
> - case TPS65912_REG_DCDC2:
> - pmic->pwm_mode_reg = TPS65912_DCDC2_CTRL;
> - pmic->eco_reg = TPS65912_DCDC2_AVS;
> - break;
> - case TPS65912_REG_DCDC3:
> - pmic->pwm_mode_reg = TPS65912_DCDC3_CTRL;
> - pmic->eco_reg = TPS65912_DCDC3_AVS;
> - break;
> - case TPS65912_REG_DCDC4:
> - pmic->pwm_mode_reg = TPS65912_DCDC4_CTRL;
> - pmic->eco_reg = TPS65912_DCDC4_AVS;
> - break;
> - default:
> - return -EINVAL;
> - }
> -
> - return 0;
> -}
> -
> -static int tps65912_reg_is_enabled(struct regulator_dev *dev)
> -{
> - struct tps65912_reg *pmic = rdev_get_drvdata(dev);
> - struct tps65912 *mfd = pmic->mfd;
> - int reg, value, id = rdev_get_id(dev);
> -
> - if (id < TPS65912_REG_DCDC1 || id > TPS65912_REG_LDO10)
> - return -EINVAL;
> -
> - reg = pmic->get_ctrl_reg(id);
> - if (reg < 0)
> - return reg;
> -
> - value = tps65912_reg_read(mfd, reg);
> - if (value < 0)
> - return value;
> -
> - return value & TPS65912_REG_ENABLED;
> -}
> -
> -static int tps65912_reg_enable(struct regulator_dev *dev)
> -{
> - struct tps65912_reg *pmic = rdev_get_drvdata(dev);
> - struct tps65912 *mfd = pmic->mfd;
> - int id = rdev_get_id(dev);
> - int reg;
> -
> - if (id < TPS65912_REG_DCDC1 || id > TPS65912_REG_LDO10)
> - return -EINVAL;
> -
> - reg = pmic->get_ctrl_reg(id);
> - if (reg < 0)
> - return reg;
> -
> - return tps65912_set_bits(mfd, reg, TPS65912_REG_ENABLED);
> -}
> -
> -static int tps65912_reg_disable(struct regulator_dev *dev)
> -{
> - struct tps65912_reg *pmic = rdev_get_drvdata(dev);
> - struct tps65912 *mfd = pmic->mfd;
> - int id = rdev_get_id(dev), reg;
> -
> - reg = pmic->get_ctrl_reg(id);
> - if (reg < 0)
> - return reg;
> -
> - return tps65912_clear_bits(mfd, reg, TPS65912_REG_ENABLED);
> -}
> -
> -static int tps65912_set_mode(struct regulator_dev *dev, unsigned int mode)
> -{
> - struct tps65912_reg *pmic = rdev_get_drvdata(dev);
> - struct tps65912 *mfd = pmic->mfd;
> - int pwm_mode, eco, id = rdev_get_id(dev);
> -
> - tps65912_get_mode_regiters(pmic, id);
> -
> - pwm_mode = tps65912_reg_read(mfd, pmic->pwm_mode_reg);
> - eco = tps65912_reg_read(mfd, pmic->eco_reg);
> -
> - pwm_mode &= DCDCCTRL_DCDC_MODE_MASK;
> - eco &= DCDC_AVS_ECO_MASK;
> -
> - switch (mode) {
> - case REGULATOR_MODE_FAST:
> - /* Verify if mode alredy set */
> - if (pwm_mode && !eco)
> - break;
> - tps65912_set_bits(mfd, pmic->pwm_mode_reg, DCDCCTRL_DCDC_MODE_MASK);
> - tps65912_clear_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK);
> - break;
> - case REGULATOR_MODE_NORMAL:
> - case REGULATOR_MODE_IDLE:
> - if (!pwm_mode && !eco)
> - break;
> - tps65912_clear_bits(mfd, pmic->pwm_mode_reg, DCDCCTRL_DCDC_MODE_MASK);
> - tps65912_clear_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK);
> - break;
> - case REGULATOR_MODE_STANDBY:
> - if (!pwm_mode && eco)
> - break;
> - tps65912_clear_bits(mfd, pmic->pwm_mode_reg, DCDCCTRL_DCDC_MODE_MASK);
> - tps65912_set_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK);
> - break;
> - default:
> - return -EINVAL;
> - }
> -
> - return 0;
> -}
> -
> -static unsigned int tps65912_get_mode(struct regulator_dev *dev)
> -{
> - struct tps65912_reg *pmic = rdev_get_drvdata(dev);
> - struct tps65912 *mfd = pmic->mfd;
> - int pwm_mode, eco, mode = 0, id = rdev_get_id(dev);
> -
> - tps65912_get_mode_regiters(pmic, id);
> -
> - pwm_mode = tps65912_reg_read(mfd, pmic->pwm_mode_reg);
> - eco = tps65912_reg_read(mfd, pmic->eco_reg);
> -
> - pwm_mode &= DCDCCTRL_DCDC_MODE_MASK;
> - eco &= DCDC_AVS_ECO_MASK;
> -
> - if (pwm_mode && !eco)
> - mode = REGULATOR_MODE_FAST;
> - else if (!pwm_mode && !eco)
> - mode = REGULATOR_MODE_NORMAL;
> - else if (!pwm_mode && eco)
> - mode = REGULATOR_MODE_STANDBY;
> -
> - return mode;
> -}
> -
> -static int tps65912_list_voltage(struct regulator_dev *dev, unsigned selector)
> -{
> - struct tps65912_reg *pmic = rdev_get_drvdata(dev);
> - int range, voltage = 0, id = rdev_get_id(dev);
> -
> - if (id > TPS65912_REG_DCDC4)
> - return -EINVAL;
> -
> - range = pmic->dcdc_range[id];
> -
> - switch (range) {
> - case 0:
> - /* 0.5 - 1.2875V in 12.5mV steps */
> - voltage = tps65912_vsel_to_uv_range0(selector);
> - break;
> - case 1:
> - /* 0.7 - 1.4875V in 12.5mV steps */
> - voltage = tps65912_vsel_to_uv_range1(selector);
> - break;
> - case 2:
> - /* 0.5 - 2.075V in 25mV steps */
> - voltage = tps65912_vsel_to_uv_range2(selector);
> - break;
> - case 3:
> - /* 0.5 - 3.8V in 50mV steps */
> - voltage = tps65912_vsel_to_uv_range3(selector);
> - break;
> - }
> - return voltage;
> -}
> -
> -static int tps65912_get_voltage_sel(struct regulator_dev *dev)
> -{
> - struct tps65912_reg *pmic = rdev_get_drvdata(dev);
> - struct tps65912 *mfd = pmic->mfd;
> - int id = rdev_get_id(dev);
> - int reg, vsel;
> -
> - reg = tps65912_get_sel_register(pmic, id);
> - if (reg < 0)
> - return reg;
> -
> - vsel = tps65912_reg_read(mfd, reg);
> - vsel &= 0x3F;
> -
> - return vsel;
> -}
> -
> -static int tps65912_set_voltage_sel(struct regulator_dev *dev,
> - unsigned selector)
> -{
> - struct tps65912_reg *pmic = rdev_get_drvdata(dev);
> - struct tps65912 *mfd = pmic->mfd;
> - int id = rdev_get_id(dev);
> - int value;
> - u8 reg;
> -
> - reg = tps65912_get_sel_register(pmic, id);
> - value = tps65912_reg_read(mfd, reg);
> - value &= 0xC0;
> - return tps65912_reg_write(mfd, reg, selector | value);
> -}
> -
> -/* Operations permitted on DCDCx */
> -static struct regulator_ops tps65912_ops_dcdc = {
> - .is_enabled = tps65912_reg_is_enabled,
> - .enable = tps65912_reg_enable,
> - .disable = tps65912_reg_disable,
> - .set_mode = tps65912_set_mode,
> - .get_mode = tps65912_get_mode,
> - .get_voltage_sel = tps65912_get_voltage_sel,
> - .set_voltage_sel = tps65912_set_voltage_sel,
> - .list_voltage = tps65912_list_voltage,
> -};
> -
> -/* Operations permitted on LDOx */
> -static struct regulator_ops tps65912_ops_ldo = {
> - .is_enabled = tps65912_reg_is_enabled,
> - .enable = tps65912_reg_enable,
> - .disable = tps65912_reg_disable,
> - .get_voltage_sel = tps65912_get_voltage_sel,
> - .set_voltage_sel = tps65912_set_voltage_sel,
> - .list_voltage = regulator_list_voltage_linear_range,
> - .map_voltage = regulator_map_voltage_linear_range,
> -};
> -
> -static int tps65912_probe(struct platform_device *pdev)
> -{
> - struct tps65912 *tps65912 = dev_get_drvdata(pdev->dev.parent);
> - struct regulator_config config = { };
> - struct tps_info *info;
> - struct regulator_init_data *reg_data;
> - struct regulator_dev *rdev;
> - struct tps65912_reg *pmic;
> - struct tps65912_board *pmic_plat_data;
> - int i;
> -
> - pmic_plat_data = dev_get_platdata(tps65912->dev);
> - if (!pmic_plat_data)
> - return -EINVAL;
> -
> - reg_data = pmic_plat_data->tps65912_pmic_init_data;
> -
> - pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
> - if (!pmic)
> - return -ENOMEM;
> -
> - mutex_init(&pmic->io_lock);
> - pmic->mfd = tps65912;
> - platform_set_drvdata(pdev, pmic);
> -
> - pmic->get_ctrl_reg = &tps65912_get_ctrl_register;
> - info = tps65912_regs;
> -
> - for (i = 0; i < TPS65912_NUM_REGULATOR; i++, info++, reg_data++) {
> - int range = 0;
> - /* Register the regulators */
> - pmic->info[i] = info;
> -
> - pmic->desc[i].name = info->name;
> - pmic->desc[i].id = i;
> - pmic->desc[i].n_voltages = 64;
> - if (i > TPS65912_REG_DCDC4) {
> - pmic->desc[i].ops = &tps65912_ops_ldo;
> - pmic->desc[i].linear_ranges = tps65912_ldo_ranges;
> - pmic->desc[i].n_linear_ranges =
> - ARRAY_SIZE(tps65912_ldo_ranges);
> - } else {
> - pmic->desc[i].ops = &tps65912_ops_dcdc;
> - }
> - pmic->desc[i].type = REGULATOR_VOLTAGE;
> - pmic->desc[i].owner = THIS_MODULE;
> - range = tps65912_get_range(pmic, i);
> -
> - config.dev = tps65912->dev;
> - config.init_data = reg_data;
> - config.driver_data = pmic;
> -
> - rdev = devm_regulator_register(&pdev->dev, &pmic->desc[i],
> - &config);
> - if (IS_ERR(rdev)) {
> - dev_err(tps65912->dev,
> - "failed to register %s regulator\n",
> - pdev->name);
> - return PTR_ERR(rdev);
> - }
> -
> - /* Save regulator for cleanup */
> - pmic->rdev[i] = rdev;
> - }
> - return 0;
> -}
> -
> -static struct platform_driver tps65912_driver = {
> - .driver = {
> - .name = "tps65912-pmic",
> - },
> - .probe = tps65912_probe,
> -};
> -
> -static int __init tps65912_init(void)
> -{
> - return platform_driver_register(&tps65912_driver);
> -}
> -subsys_initcall(tps65912_init);
> -
> -static void __exit tps65912_cleanup(void)
> -{
> - platform_driver_unregister(&tps65912_driver);
> -}
> -module_exit(tps65912_cleanup);
> -
> -MODULE_AUTHOR("Margarita Olaya Cabrera <magi@...mlogic.co.uk>");
> -MODULE_DESCRIPTION("TPS65912 voltage regulator driver");
> -MODULE_LICENSE("GPL v2");
> -MODULE_ALIAS("platform:tps65912-pmic");
> +/*
> + * tps65912-regulator.c
> + *
> + * Regulator driver for TPS65912 PMIC
> + *
> + * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
> + *
> + * Author: Andrew F. Davis <afd@...com>
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any
> + * kind, whether expressed or implied; without even the implied warranty
> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License version 2 for more details.
> + *
> + * Based on the TPS65218 driver and the previous TPS65912 driver by
> + * Margarita Olaya Cabrera <magi@...mlogic.co.uk>
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of_device.h>
> +#include <linux/platform_device.h>
> +#include <linux/regulator/driver.h>
> +#include <linux/regulator/of_regulator.h>
> +
> +#include <linux/mfd/tps65912.h>
> +
> +enum tps65912_regulators { DCDC1, DCDC2, DCDC3, DCDC4, LDO1, LDO2, LDO3,
> + LDO4, LDO5, LDO6, LDO7, LDO8, LDO9, LDO10 };
> +
> +#define TPS65912_REGULATOR(_name, _id, _ops, _vr, _er, _lr, _nlr) \
> + { \
> + .name = _name, \
> + .id = _id, \
> + .ops = &_ops, \
> + .n_voltages = 64, \
> + .type = REGULATOR_VOLTAGE, \
> + .owner = THIS_MODULE, \
> + .vsel_reg = _vr, \
> + .vsel_mask = 0x3f, \
> + .enable_reg = _er, \
> + .enable_mask = BIT(7), \
> + .volt_table = NULL, \
> + .linear_ranges = _lr, \
> + .n_linear_ranges = _nlr, \
> + } \
> +
> +#define TPS65912_INFO(_id, _nm, _min, _max) \
> + [_id] = { \
> + .id = _id, \
> + .name = _nm, \
> + .min_uV = _min, \
> + .max_uV = _max, \
> + }
> +
> +static const struct regulator_linear_range tps65912_dcdc_ranges[] = {
> + REGULATOR_LINEAR_RANGE(500000, 0x0, 0x3f, 50000),
> +};
> +
> +static const struct regulator_linear_range tps65912_ldo_ranges[] = {
> + REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 25000),
> + REGULATOR_LINEAR_RANGE(1650000, 0x21, 0x3c, 50000),
> + REGULATOR_LINEAR_RANGE(3100000, 0x3d, 0x3f, 100000),
> +};
> +
> +static struct tps_info tps65912_pmic_regs[] = {
> + TPS65912_INFO(DCDC1, "DCDC1", 500000, 3800000),
> + TPS65912_INFO(DCDC2, "DCDC2", 500000, 3800000),
> + TPS65912_INFO(DCDC3, "DCDC3", 500000, 3800000),
> + TPS65912_INFO(DCDC4, "DCDC4", 500000, 3800000),
> + TPS65912_INFO(LDO1, "LDO1", 800000, 3300000),
> + TPS65912_INFO(LDO2, "LDO2", 800000, 3300000),
> + TPS65912_INFO(LDO3, "LDO3", 800000, 3300000),
> + TPS65912_INFO(LDO4, "LDO4", 1600000, 3300000),
> + TPS65912_INFO(LDO5, "LDO5", 1600000, 3300000),
> + TPS65912_INFO(LDO6, "LDO6", 800000, 3300000),
> + TPS65912_INFO(LDO7, "LDO7", 800000, 3300000),
> + TPS65912_INFO(LDO8, "LDO8", 800000, 3300000),
> + TPS65912_INFO(LDO9, "LDO9", 800000, 3300000),
> + TPS65912_INFO(LDO10, "LDO10", 800000, 3300000),
> +};
> +
> +#define TPS65912_OF_MATCH(comp, label) \
> + { \
> + .compatible = comp, \
> + .data = &label, \
> + }
> +
> +static const struct of_device_id tps65912_regulator_of_match_table[] = {
> + TPS65912_OF_MATCH("ti,tps65912-dcdc1", tps65912_pmic_regs[DCDC1]),
> + TPS65912_OF_MATCH("ti,tps65912-dcdc2", tps65912_pmic_regs[DCDC2]),
> + TPS65912_OF_MATCH("ti,tps65912-dcdc3", tps65912_pmic_regs[DCDC3]),
> + TPS65912_OF_MATCH("ti,tps65912-dcdc4", tps65912_pmic_regs[DCDC4]),
> + TPS65912_OF_MATCH("ti,tps65912-ldo1", tps65912_pmic_regs[LDO1]),
> + TPS65912_OF_MATCH("ti,tps65912-ldo2", tps65912_pmic_regs[LDO2]),
> + TPS65912_OF_MATCH("ti,tps65912-ldo3", tps65912_pmic_regs[LDO3]),
> + TPS65912_OF_MATCH("ti,tps65912-ldo4", tps65912_pmic_regs[LDO4]),
> + TPS65912_OF_MATCH("ti,tps65912-ldo5", tps65912_pmic_regs[LDO5]),
> + TPS65912_OF_MATCH("ti,tps65912-ldo6", tps65912_pmic_regs[LDO6]),
> + TPS65912_OF_MATCH("ti,tps65912-ldo7", tps65912_pmic_regs[LDO7]),
> + TPS65912_OF_MATCH("ti,tps65912-ldo8", tps65912_pmic_regs[LDO8]),
> + TPS65912_OF_MATCH("ti,tps65912-ldo9", tps65912_pmic_regs[LDO9]),
> + TPS65912_OF_MATCH("ti,tps65912-ldo10", tps65912_pmic_regs[LDO10]),
> + { /*sentinel*/ },
> +};
> +MODULE_DEVICE_TABLE(of, tps65912_regulator_of_match_table);
> +
> +/* Operations permitted on DCDCx */
> +static struct regulator_ops tps65912_ops_dcdc = {
> + .is_enabled = regulator_is_enabled_regmap,
> + .enable = regulator_enable_regmap,
> + .disable = regulator_disable_regmap,
> + .get_voltage_sel = regulator_get_voltage_sel_regmap,
> + .set_voltage_sel = regulator_set_voltage_sel_regmap,
> + .list_voltage = regulator_list_voltage_linear_range,
> +};
> +
> +/* Operations permitted on LDOx */
> +static struct regulator_ops tps65912_ops_ldo = {
> + .is_enabled = regulator_is_enabled_regmap,
> + .enable = regulator_enable_regmap,
> + .disable = regulator_disable_regmap,
> + .get_voltage_sel = regulator_get_voltage_sel_regmap,
> + .set_voltage_sel = regulator_set_voltage_sel_regmap,
> + .list_voltage = regulator_list_voltage_linear_range,
> + .map_voltage = regulator_map_voltage_linear_range,
> +};
> +
> +static const struct regulator_desc regulators[] = {
> + TPS65912_REGULATOR("DCDC1", TPS65912_DCDC_1, tps65912_ops_dcdc,
> + TPS65912_DCDC1_OP, TPS65912_DCDC1_CTRL,
> + tps65912_dcdc_ranges,
> + ARRAY_SIZE(tps65912_dcdc_ranges)),
> + TPS65912_REGULATOR("DCDC2", TPS65912_DCDC_2, tps65912_ops_dcdc,
> + TPS65912_DCDC2_OP, TPS65912_DCDC2_CTRL,
> + tps65912_dcdc_ranges,
> + ARRAY_SIZE(tps65912_dcdc_ranges)),
> + TPS65912_REGULATOR("DCDC3", TPS65912_DCDC_3, tps65912_ops_dcdc,
> + TPS65912_DCDC3_OP, TPS65912_DCDC3_CTRL,
> + tps65912_dcdc_ranges,
> + ARRAY_SIZE(tps65912_dcdc_ranges)),
> + TPS65912_REGULATOR("DCDC4", TPS65912_DCDC_4, tps65912_ops_dcdc,
> + TPS65912_DCDC4_OP, TPS65912_DCDC4_CTRL,
> + tps65912_dcdc_ranges,
> + ARRAY_SIZE(tps65912_dcdc_ranges)),
> + TPS65912_REGULATOR("LDO1", TPS65912_LDO_1, tps65912_ops_ldo,
> + TPS65912_LDO1_OP, TPS65912_LDO1_AVS,
> + tps65912_ldo_ranges,
> + ARRAY_SIZE(tps65912_ldo_ranges)),
> + TPS65912_REGULATOR("LDO2", TPS65912_LDO_2, tps65912_ops_ldo,
> + TPS65912_LDO2_OP, TPS65912_LDO2_AVS,
> + tps65912_ldo_ranges,
> + ARRAY_SIZE(tps65912_ldo_ranges)),
> + TPS65912_REGULATOR("LDO3", TPS65912_LDO_3, tps65912_ops_ldo,
> + TPS65912_LDO3_OP, TPS65912_LDO3_AVS,
> + tps65912_ldo_ranges,
> + ARRAY_SIZE(tps65912_ldo_ranges)),
> + TPS65912_REGULATOR("LDO4", TPS65912_LDO_4, tps65912_ops_ldo,
> + TPS65912_LDO4_OP, TPS65912_LDO4_AVS,
> + tps65912_ldo_ranges,
> + ARRAY_SIZE(tps65912_ldo_ranges)),
> + TPS65912_REGULATOR("LDO5", TPS65912_LDO_5, tps65912_ops_ldo,
> + TPS65912_LDO5, TPS65912_LDO5,
> + tps65912_ldo_ranges,
> + ARRAY_SIZE(tps65912_ldo_ranges)),
> + TPS65912_REGULATOR("LDO6", TPS65912_LDO_6, tps65912_ops_ldo,
> + TPS65912_LDO6, TPS65912_LDO6,
> + tps65912_ldo_ranges,
> + ARRAY_SIZE(tps65912_ldo_ranges)),
> + TPS65912_REGULATOR("LDO7", TPS65912_LDO_7, tps65912_ops_ldo,
> + TPS65912_LDO7, TPS65912_LDO7,
> + tps65912_ldo_ranges,
> + ARRAY_SIZE(tps65912_ldo_ranges)),
> + TPS65912_REGULATOR("LDO8", TPS65912_LDO_8, tps65912_ops_ldo,
> + TPS65912_LDO8, TPS65912_LDO8,
> + tps65912_ldo_ranges,
> + ARRAY_SIZE(tps65912_ldo_ranges)),
> + TPS65912_REGULATOR("LDO9", TPS65912_LDO_9, tps65912_ops_ldo,
> + TPS65912_LDO9, TPS65912_LDO9,
> + tps65912_ldo_ranges,
> + ARRAY_SIZE(tps65912_ldo_ranges)),
> + TPS65912_REGULATOR("LDO10", TPS65912_LDO_10, tps65912_ops_ldo,
> + TPS65912_LDO10, TPS65912_LDO10,
> + tps65912_ldo_ranges,
> + ARRAY_SIZE(tps65912_ldo_ranges)),
> +};
> +
> +static int tps65912_regulator_probe(struct platform_device *pdev)
> +{
> + struct tps65912 *tps = dev_get_drvdata(pdev->dev.parent);
> + struct regulator_init_data *init_data;
> + const struct tps_info *template;
> + struct regulator_dev *rdev;
> + const struct of_device_id *match;
> + struct regulator_config config = { };
> + int id;
> +
> + match = of_match_device(tps65912_regulator_of_match_table, &pdev->dev);
> + if (!match)
> + return -ENODEV;
> +
> + template = match->data;
> + id = template->id;
> + init_data = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node,
> + ®ulators[id]);
> +
> + platform_set_drvdata(pdev, tps);
> +
> + tps->info[id] = &tps65912_pmic_regs[id];
> + config.dev = &pdev->dev;
> + config.init_data = init_data;
> + config.driver_data = tps;
> + config.regmap = tps->regmap;
> + config.of_node = pdev->dev.of_node;
> +
> + rdev = devm_regulator_register(&pdev->dev, ®ulators[id], &config);
> + if (IS_ERR(rdev)) {
> + dev_err(tps->dev, "failed to register %s regulator\n",
> + pdev->name);
> + return PTR_ERR(rdev);
> + }
> +
> + return 0;
> +}
> +
> +static struct platform_driver tps65912_regulator_driver = {
> + .driver = {
> + .name = "tps65912-pmic",
> + .of_match_table = tps65912_regulator_of_match_table,
> + },
> + .probe = tps65912_regulator_probe,
> +};
> +
> +module_platform_driver(tps65912_regulator_driver);
> +
> +MODULE_AUTHOR("Andrew F. Davis <afd@...com>");
> +MODULE_DESCRIPTION("TPS65912 voltage regulator driver");
> +MODULE_ALIAS("platform:tps65912-pmic");
> +MODULE_LICENSE("GPL v2");
> diff --git a/include/linux/mfd/tps65912.h b/include/linux/mfd/tps65912.h
> index 6d30903..ab91c12 100644
> --- a/include/linux/mfd/tps65912.h
> +++ b/include/linux/mfd/tps65912.h
> @@ -1,28 +1,34 @@
> /*
> - * tps65912.h -- TI TPS6591x
> + * tps65912.h -- TI TPS65912x
> *
> - * Copyright 2011 Texas Instruments Inc.
> + * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
> *
> - * Author: Margarita Olaya <magi@...mlogic.co.uk>
> + * Author: Andrew F. Davis <afd@...com>
> *
> - * This program is free software; you can redistribute it and/or modify it
> - * under the terms of the GNU General Public License as published by the
> - * Free Software Foundation; either version 2 of the License, or (at your
> - * option) any later version.
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> *
> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any
> + * kind, whether expressed or implied; without even the implied warranty
> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License version 2 for more details.
> + *
> + * Based on the TPS65218 driver and the previous TPS65912 driver by
> + * Margarita Olaya Cabrera <magi@...mlogic.co.uk>
> */
>
> #ifndef __LINUX_MFD_TPS65912_H
> #define __LINUX_MFD_TPS65912_H
>
> -/* TPS regulator type list */
> -#define REGULATOR_LDO 0
> -#define REGULATOR_DCDC 1
> +#include <linux/device.h>
> +#include <linux/regmap.h>
> +#include <linux/regulator/driver.h>
>
> -/*
> - * List of registers for TPS65912
> - */
> +/* TPS chip id list */
> +#define TPS65912 0x00
>
> +/* List of registers for TPS65912 */
> #define TPS65912_DCDC1_CTRL 0x00
> #define TPS65912_DCDC2_CTRL 0x01
> #define TPS65912_DCDC3_CTRL 0x02
> @@ -126,41 +132,45 @@
> #define TPS65912_VERNUM 0x64
> #define TPS6591X_MAX_REGISTER 0x64
>
> -/* IRQ Definitions */
> -#define TPS65912_IRQ_PWRHOLD_F 0
> -#define TPS65912_IRQ_VMON 1
> -#define TPS65912_IRQ_PWRON 2
> -#define TPS65912_IRQ_PWRON_LP 3
> -#define TPS65912_IRQ_PWRHOLD_R 4
> -#define TPS65912_IRQ_HOTDIE 5
> -#define TPS65912_IRQ_GPIO1_R 6
> -#define TPS65912_IRQ_GPIO1_F 7
> -#define TPS65912_IRQ_GPIO2_R 8
> -#define TPS65912_IRQ_GPIO2_F 9
> -#define TPS65912_IRQ_GPIO3_R 10
> -#define TPS65912_IRQ_GPIO3_F 11
> -#define TPS65912_IRQ_GPIO4_R 12
> -#define TPS65912_IRQ_GPIO4_F 13
> -#define TPS65912_IRQ_GPIO5_R 14
> -#define TPS65912_IRQ_GPIO5_F 15
> -#define TPS65912_IRQ_PGOOD_DCDC1 16
> -#define TPS65912_IRQ_PGOOD_DCDC2 17
> -#define TPS65912_IRQ_PGOOD_DCDC3 18
> -#define TPS65912_IRQ_PGOOD_DCDC4 19
> -#define TPS65912_IRQ_PGOOD_LDO1 20
> -#define TPS65912_IRQ_PGOOD_LDO2 21
> -#define TPS65912_IRQ_PGOOD_LDO3 22
> -#define TPS65912_IRQ_PGOOD_LDO4 23
> -#define TPS65912_IRQ_PGOOD_LDO5 24
> -#define TPS65912_IRQ_PGOOD_LDO6 25
> -#define TPS65912_IRQ_PGOOD_LDO7 26
> -#define TPS65912_IRQ_PGOOD_LD08 27
> -#define TPS65912_IRQ_PGOOD_LDO9 28
> -#define TPS65912_IRQ_PGOOD_LDO10 29
> +/* INT_STS Register field definitions */
> +#define TPS65912_INT_STS_PWRHOLD_F BIT(0)
> +#define TPS65912_INT_STS_VMON BIT(1)
> +#define TPS65912_INT_STS_PWRON BIT(2)
> +#define TPS65912_INT_STS_PWRON_LP BIT(3)
> +#define TPS65912_INT_STS_PWRHOLD_R BIT(4)
> +#define TPS65912_INT_STS_HOTDIE BIT(5)
> +#define TPS65912_INT_STS_GPIO1_R BIT(6)
> +#define TPS65912_INT_STS_GPIO1_F BIT(7)
>
> -#define TPS65912_NUM_IRQ 30
> +/* INT_STS Register field definitions */
> +#define TPS65912_INT_STS2_GPIO2_R BIT(0)
> +#define TPS65912_INT_STS2_GPIO2_F BIT(1)
> +#define TPS65912_INT_STS2_GPIO3_R BIT(2)
> +#define TPS65912_INT_STS2_GPIO3_F BIT(3)
> +#define TPS65912_INT_STS2_GPIO4_R BIT(4)
> +#define TPS65912_INT_STS2_GPIO4_F BIT(5)
> +#define TPS65912_INT_STS2_GPIO5_R BIT(6)
> +#define TPS65912_INT_STS2_GPIO5_F BIT(7)
>
> -/* GPIO 1 and 2 Register Definitions */
> +/* INT_STS Register field definitions */
> +#define TPS65912_INT_STS3_PGOOD_DCDC1 BIT(0)
> +#define TPS65912_INT_STS3_PGOOD_DCDC2 BIT(1)
> +#define TPS65912_INT_STS3_PGOOD_DCDC3 BIT(2)
> +#define TPS65912_INT_STS3_PGOOD_DCDC4 BIT(3)
> +#define TPS65912_INT_STS3_PGOOD_LDO1 BIT(4)
> +#define TPS65912_INT_STS3_PGOOD_LDO2 BIT(5)
> +#define TPS65912_INT_STS3_PGOOD_LDO3 BIT(6)
> +#define TPS65912_INT_STS3_PGOOD_LDO4 BIT(7)
> +
> +/* INT_STS Register field definitions */
> +#define TPS65912_INT_STS4_PGOOD_LDO5 BIT(0)
> +#define TPS65912_INT_STS4_PGOOD_LDO6 BIT(1)
> +#define TPS65912_INT_STS4_PGOOD_LDO7 BIT(2)
> +#define TPS65912_INT_STS4_PGOOD_LDO8 BIT(3)
> +#define TPS65912_INT_STS4_PGOOD_LDO9 BIT(4)
> +#define TPS65912_INT_STS4_PGOOD_LDO10 BIT(5)
> +
> +/* GPIO 1 and 2 Register field definitions */
> #define GPIO_SLEEP_MASK 0x80
> #define GPIO_SLEEP_SHIFT 7
> #define GPIO_DEB_MASK 0x10
> @@ -172,7 +182,7 @@
> #define GPIO_SET_MASK 0x01
> #define GPIO_SET_SHIFT 0
>
> -/* GPIO 3 Register Definitions */
> +/* GPIO 3 Register field definitions */
> #define GPIO3_SLEEP_MASK 0x80
> #define GPIO3_SLEEP_SHIFT 7
> #define GPIO3_SEL_MASK 0x40
> @@ -190,7 +200,7 @@
> #define GPIO3_SET_MASK 0x01
> #define GPIO3_SET_SHIFT 0
>
> -/* GPIO 4 Register Definitions */
> +/* GPIO 4 Register field definitions */
> #define GPIO4_SLEEP_MASK 0x80
> #define GPIO4_SLEEP_SHIFT 7
> #define GPIO4_SEL_MASK 0x40
> @@ -264,65 +274,123 @@
> #define DCDC_LIMIT_MAX_SEL_MASK 0x3F
> #define DCDC_LIMIT_MAX_SEL_SHIFT 0
>
> -/**
> - * struct tps65912_board
> - * Board platform dat may be used to initialize regulators.
> - */
> -struct tps65912_board {
> - int is_dcdc1_avs;
> - int is_dcdc2_avs;
> - int is_dcdc3_avs;
> - int is_dcdc4_avs;
> - int irq;
> - int irq_base;
> - int gpio_base;
> - struct regulator_init_data *tps65912_pmic_init_data;
> +enum tps65912_regulator_id {
> + /* DCDC's */
> + TPS65912_DCDC_1,
> + TPS65912_DCDC_2,
> + TPS65912_DCDC_3,
> + TPS65912_DCDC_4,
> + /* LDOs */
> + TPS65912_LDO_1,
> + TPS65912_LDO_2,
> + TPS65912_LDO_3,
> + TPS65912_LDO_4,
> + TPS65912_LDO_5,
> + TPS65912_LDO_6,
> + TPS65912_LDO_7,
> + TPS65912_LDO_8,
> + TPS65912_LDO_9,
> + TPS65912_LDO_10,
> +};
> +
> +#define TPS65912_MAX_REG_ID TPS65912_LDO_10
> +
> +/* Number of step-down converters available */
> +#define TPS65912_NUM_DCDC 4
> +/* Number of LDO voltage regulators available */
> +#define TPS65912_NUM_LDO 10
> +/* Number of total regulators available */
> +#define TPS65912_NUM_REGULATOR (TPS65912_NUM_DCDC + TPS65912_NUM_LDO)
> +
> +/* Define the TPS65912 IRQ numbers */
> +enum tps65912_irqs {
> + /* INT_STS registers */
> + TPS65912_IRQ_PWRHOLD_F,
> + TPS65912_IRQ_VMON,
> + TPS65912_IRQ_PWRON,
> + TPS65912_IRQ_PWRON_LP,
> + TPS65912_IRQ_PWRHOLD_R,
> + TPS65912_IRQ_HOTDIE,
> + TPS65912_IRQ_GPIO1_R,
> + TPS65912_IRQ_GPIO1_F,
> + /* INT_STS2 registers */
> + TPS65912_IRQ_GPIO2_R,
> + TPS65912_IRQ_GPIO2_F,
> + TPS65912_IRQ_GPIO3_R,
> + TPS65912_IRQ_GPIO3_F,
> + TPS65912_IRQ_GPIO4_R,
> + TPS65912_IRQ_GPIO4_F,
> + TPS65912_IRQ_GPIO5_R,
> + TPS65912_IRQ_GPIO5_F,
> + /* INT_STS3 registers */
> + TPS65912_IRQ_PGOOD_DCDC1,
> + TPS65912_IRQ_PGOOD_DCDC2,
> + TPS65912_IRQ_PGOOD_DCDC3,
> + TPS65912_IRQ_PGOOD_DCDC4,
> + TPS65912_IRQ_PGOOD_LDO1,
> + TPS65912_IRQ_PGOOD_LDO2,
> + TPS65912_IRQ_PGOOD_LDO3,
> + TPS65912_IRQ_PGOOD_LDO4,
> + /* INT_STS4 registers */
> + TPS65912_IRQ_PGOOD_LDO5,
> + TPS65912_IRQ_PGOOD_LDO6,
> + TPS65912_IRQ_PGOOD_LDO7,
> + TPS65912_IRQ_PGOOD_LDO8,
> + TPS65912_IRQ_PGOOD_LDO9,
> + TPS65912_IRQ_PGOOD_LDO10,
> };
>
> -/**
> - * struct tps65912 - tps65912 sub-driver chip access routines
> +/*
> + * struct tps_info - packages regulator constraints
> + * @id: Id of the regulator
> + * @name: Voltage regulator name
> + * @min_uV: Minimum micro volts
> + * @max_uV: Minimum micro volts
> + *
> + * This data is used to check the regualtor voltage limits while setting.
> */
> +struct tps_info {
> + int id;
> + const char *name;
> + int min_uV;
> + int max_uV;
> +};
>
> +/*
> + * struct tps65912 - state holder for the tps65912 driver
> + *
> + * Device data may be used to access the TPS65912 chip
> + */
> struct tps65912 {
> struct device *dev;
> - /* for read/write acces */
> - struct mutex io_mutex;
> -
> - /* For device IO interfaces: I2C or SPI */
> - void *control_data;
> + unsigned int id;
>
> - int (*read)(struct tps65912 *tps65912, u8 reg, int size, void *dest);
> - int (*write)(struct tps65912 *tps65912, u8 reg, int size, void *src);
> -
> - /* Client devices */
> - struct tps65912_pmic *pmic;
> + /* IRQ Data */
> + int irq;
> + struct regmap_irq_chip_data *irq_data;
>
> - /* GPIO Handling */
> - struct gpio_chip gpio;
> + struct regulator_desc desc[TPS65912_NUM_REGULATOR];
> + struct tps_info *info[TPS65912_NUM_REGULATOR];
> + struct regmap *regmap;
> +};
>
> - /* IRQ Handling */
> - struct mutex irq_lock;
> - int chip_irq;
> - int irq_base;
> - int irq_num;
> - u32 irq_mask;
> +static const struct regmap_range tps65912_yes_ranges[] = {
> + regmap_reg_range(TPS65912_INT_STS, TPS65912_GPIO5),
> };
>
> -struct tps65912_platform_data {
> - int irq;
> - int irq_base;
> +static const struct regmap_access_table tps65912_volatile_table = {
> + .yes_ranges = tps65912_yes_ranges,
> + .n_yes_ranges = ARRAY_SIZE(tps65912_yes_ranges),
> };
>
> -unsigned int tps_chip(void);
> +static const struct regmap_config tps65912_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .cache_type = REGCACHE_RBTREE,
> + .volatile_table = &tps65912_volatile_table,
> +};
>
> -int tps65912_set_bits(struct tps65912 *tps65912, u8 reg, u8 mask);
> -int tps65912_clear_bits(struct tps65912 *tps65912, u8 reg, u8 mask);
> -int tps65912_reg_read(struct tps65912 *tps65912, u8 reg);
> -int tps65912_reg_write(struct tps65912 *tps65912, u8 reg, u8 val);
> -int tps65912_device_init(struct tps65912 *tps65912);
> -void tps65912_device_exit(struct tps65912 *tps65912);
> -int tps65912_irq_init(struct tps65912 *tps65912, int irq,
> - struct tps65912_platform_data *pdata);
> -int tps65912_irq_exit(struct tps65912 *tps65912);
> +int tps65912_device_init(struct tps65912 *tps);
> +void tps65912_device_exit(struct tps65912 *tps);
>
> #endif /* __LINUX_MFD_TPS65912_H */
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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