diff options
Diffstat (limited to 'drivers/gpio/gpio-kempld.c')
| -rw-r--r-- | drivers/gpio/gpio-kempld.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/drivers/gpio/gpio-kempld.c b/drivers/gpio/gpio-kempld.c index 7bb96f48ef76..923aad3ab4d4 100644 --- a/drivers/gpio/gpio-kempld.c +++ b/drivers/gpio/gpio-kempld.c @@ -1,17 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Kontron PLD GPIO driver * * Copyright (c) 2010-2013 Kontron Europe GmbH * Author: Michael Brunner <michael.brunner@kontron.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License 2 as published - * by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/init.h> @@ -71,7 +63,8 @@ static int kempld_gpio_get(struct gpio_chip *chip, unsigned offset) return !!kempld_gpio_get_bit(pld, KEMPLD_GPIO_LVL_NUM(offset), offset); } -static void kempld_gpio_set(struct gpio_chip *chip, unsigned offset, int value) +static int kempld_gpio_set(struct gpio_chip *chip, unsigned int offset, + int value) { struct kempld_gpio_data *gpio = gpiochip_get_data(chip); struct kempld_device_data *pld = gpio->pld; @@ -79,6 +72,8 @@ static void kempld_gpio_set(struct gpio_chip *chip, unsigned offset, int value) kempld_get_mutex(pld); kempld_gpio_bitop(pld, KEMPLD_GPIO_LVL_NUM(offset), offset, value); kempld_release_mutex(pld); + + return 0; } static int kempld_gpio_direction_input(struct gpio_chip *chip, unsigned offset) @@ -112,7 +107,10 @@ static int kempld_gpio_get_direction(struct gpio_chip *chip, unsigned offset) struct kempld_gpio_data *gpio = gpiochip_get_data(chip); struct kempld_device_data *pld = gpio->pld; - return !kempld_gpio_get_bit(pld, KEMPLD_GPIO_DIR_NUM(offset), offset); + if (kempld_gpio_get_bit(pld, KEMPLD_GPIO_DIR_NUM(offset), offset)) + return GPIO_LINE_DIRECTION_OUT; + + return GPIO_LINE_DIRECTION_IN; } static int kempld_gpio_pincount(struct kempld_device_data *pld) |