diff options
Diffstat (limited to 'drivers/gpio/gpio-tps65910.c')
| -rw-r--r-- | drivers/gpio/gpio-tps65910.c | 56 |
1 files changed, 23 insertions, 33 deletions
diff --git a/drivers/gpio/gpio-tps65910.c b/drivers/gpio/gpio-tps65910.c index e63d7dabf78b..25e9f41efe78 100644 --- a/drivers/gpio/gpio-tps65910.c +++ b/drivers/gpio/gpio-tps65910.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * TI TPS6591x GPIO driver * @@ -5,22 +6,16 @@ * * Author: Graeme Gregory <gg@slimlogic.co.uk> * Author: Jorge Eduardo Candelaria <jedu@slimlogic.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. - * */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/errno.h> -#include <linux/gpio.h> +#include <linux/gpio/driver.h> #include <linux/i2c.h> #include <linux/platform_device.h> #include <linux/mfd/tps65910.h> -#include <linux/of_device.h> +#include <linux/of.h> struct tps65910_gpio { struct gpio_chip gpio_chip; @@ -33,7 +28,7 @@ static int tps65910_gpio_get(struct gpio_chip *gc, unsigned offset) struct tps65910 *tps65910 = tps65910_gpio->tps65910; unsigned int val; - tps65910_reg_read(tps65910, TPS65910_GPIO0 + offset, &val); + regmap_read(tps65910->regmap, TPS65910_GPIO0 + offset, &val); if (val & GPIO_STS_MASK) return 1; @@ -41,18 +36,18 @@ static int tps65910_gpio_get(struct gpio_chip *gc, unsigned offset) return 0; } -static void tps65910_gpio_set(struct gpio_chip *gc, unsigned offset, - int value) +static int tps65910_gpio_set(struct gpio_chip *gc, unsigned int offset, + int value) { struct tps65910_gpio *tps65910_gpio = gpiochip_get_data(gc); struct tps65910 *tps65910 = tps65910_gpio->tps65910; if (value) - tps65910_reg_set_bits(tps65910, TPS65910_GPIO0 + offset, - GPIO_SET_MASK); - else - tps65910_reg_clear_bits(tps65910, TPS65910_GPIO0 + offset, - GPIO_SET_MASK); + return regmap_set_bits(tps65910->regmap, + TPS65910_GPIO0 + offset, GPIO_SET_MASK); + + return regmap_clear_bits(tps65910->regmap, TPS65910_GPIO0 + offset, + GPIO_SET_MASK); } static int tps65910_gpio_output(struct gpio_chip *gc, unsigned offset, @@ -60,11 +55,14 @@ static int tps65910_gpio_output(struct gpio_chip *gc, unsigned offset, { struct tps65910_gpio *tps65910_gpio = gpiochip_get_data(gc); struct tps65910 *tps65910 = tps65910_gpio->tps65910; + int ret; /* Set the initial value */ - tps65910_gpio_set(gc, offset, value); + ret = tps65910_gpio_set(gc, offset, value); + if (ret) + return ret; - return tps65910_reg_set_bits(tps65910, TPS65910_GPIO0 + offset, + return regmap_set_bits(tps65910->regmap, TPS65910_GPIO0 + offset, GPIO_CFG_MASK); } @@ -73,7 +71,7 @@ static int tps65910_gpio_input(struct gpio_chip *gc, unsigned offset) struct tps65910_gpio *tps65910_gpio = gpiochip_get_data(gc); struct tps65910 *tps65910 = tps65910_gpio->tps65910; - return tps65910_reg_clear_bits(tps65910, TPS65910_GPIO0 + offset, + return regmap_clear_bits(tps65910->regmap, TPS65910_GPIO0 + offset, GPIO_CFG_MASK); } @@ -116,6 +114,8 @@ static int tps65910_gpio_probe(struct platform_device *pdev) int ret; int i; + device_set_node(&pdev->dev, dev_fwnode(pdev->dev.parent)); + tps65910_gpio = devm_kzalloc(&pdev->dev, sizeof(*tps65910_gpio), GFP_KERNEL); if (!tps65910_gpio) @@ -142,9 +142,7 @@ static int tps65910_gpio_probe(struct platform_device *pdev) tps65910_gpio->gpio_chip.set = tps65910_gpio_set; tps65910_gpio->gpio_chip.get = tps65910_gpio_get; tps65910_gpio->gpio_chip.parent = &pdev->dev; -#ifdef CONFIG_OF_GPIO - tps65910_gpio->gpio_chip.of_node = tps65910->dev->of_node; -#endif + if (pdata && pdata->gpio_base) tps65910_gpio->gpio_chip.base = pdata->gpio_base; else @@ -162,7 +160,7 @@ static int tps65910_gpio_probe(struct platform_device *pdev) if (!pdata->en_gpio_sleep[i]) continue; - ret = tps65910_reg_set_bits(tps65910, + ret = regmap_set_bits(tps65910->regmap, TPS65910_GPIO0 + i, GPIO_SLEEP_MASK); if (ret < 0) dev_warn(tps65910->dev, @@ -170,16 +168,8 @@ static int tps65910_gpio_probe(struct platform_device *pdev) } skip_init: - ret = devm_gpiochip_add_data(&pdev->dev, &tps65910_gpio->gpio_chip, - tps65910_gpio); - if (ret < 0) { - dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret); - return ret; - } - - platform_set_drvdata(pdev, tps65910_gpio); - - return ret; + return devm_gpiochip_add_data(&pdev->dev, &tps65910_gpio->gpio_chip, + tps65910_gpio); } static struct platform_driver tps65910_gpio_driver = { |