diff options
Diffstat (limited to 'drivers/gpio/gpio-da9055.c')
| -rw-r--r-- | drivers/gpio/gpio-da9055.c | 30 |
1 files changed, 6 insertions, 24 deletions
diff --git a/drivers/gpio/gpio-da9055.c b/drivers/gpio/gpio-da9055.c index 2f1b5d23b10c..a09bd6eb93cf 100644 --- a/drivers/gpio/gpio-da9055.c +++ b/drivers/gpio/gpio-da9055.c @@ -1,15 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * GPIO Driver for Dialog DA9055 PMICs. * * Copyright(c) 2012 Dialog Semiconductor Ltd. * * Author: David Dajun Chen <dchen@diasemi.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. - * */ #include <linux/module.h> #include <linux/platform_device.h> @@ -64,14 +59,12 @@ static int da9055_gpio_get(struct gpio_chip *gc, unsigned offset) } -static void da9055_gpio_set(struct gpio_chip *gc, unsigned offset, int value) +static int da9055_gpio_set(struct gpio_chip *gc, unsigned int offset, int value) { struct da9055_gpio *gpio = gpiochip_get_data(gc); - da9055_reg_update(gpio->da9055, - DA9055_REG_GPIO_MODE0_2, - 1 << offset, - value << offset); + return da9055_reg_update(gpio->da9055, DA9055_REG_GPIO_MODE0_2, + 1 << offset, value << offset); } static int da9055_gpio_direction_input(struct gpio_chip *gc, unsigned offset) @@ -107,9 +100,7 @@ static int da9055_gpio_direction_output(struct gpio_chip *gc, if (ret < 0) return ret; - da9055_gpio_set(gc, offset, value); - - return 0; + return da9055_gpio_set(gc, offset, value); } static int da9055_gpio_to_irq(struct gpio_chip *gc, u32 offset) @@ -138,7 +129,6 @@ static int da9055_gpio_probe(struct platform_device *pdev) { struct da9055_gpio *gpio; struct da9055_pdata *pdata; - int ret; gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL); if (!gpio) @@ -151,15 +141,7 @@ static int da9055_gpio_probe(struct platform_device *pdev) if (pdata && pdata->gpio_base) gpio->gp.base = pdata->gpio_base; - ret = devm_gpiochip_add_data(&pdev->dev, &gpio->gp, gpio); - if (ret < 0) { - dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret); - return ret; - } - - platform_set_drvdata(pdev, gpio); - - return 0; + return devm_gpiochip_add_data(&pdev->dev, &gpio->gp, gpio); } static struct platform_driver da9055_gpio_driver = { |