diff options
Diffstat (limited to 'drivers/gpio/gpio-spear-spics.c')
| -rw-r--r-- | drivers/gpio/gpio-spear-spics.c | 24 |
1 files changed, 5 insertions, 19 deletions
diff --git a/drivers/gpio/gpio-spear-spics.c b/drivers/gpio/gpio-spear-spics.c index 49aac2bb8d2c..96a0e1211500 100644 --- a/drivers/gpio/gpio-spear-spics.c +++ b/drivers/gpio/gpio-spear-spics.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * SPEAr platform SPI chipselect abstraction over gpiolib * * Copyright (C) 2012 ST Microelectronics * Shiraz Hashim <shiraz.linux.kernel@gmail.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. */ #include <linux/err.h> @@ -54,13 +51,8 @@ struct spear_spics { struct gpio_chip chip; }; -/* gpio framework specific routines */ -static int spics_get_value(struct gpio_chip *chip, unsigned offset) -{ - return -ENXIO; -} - -static void spics_set_value(struct gpio_chip *chip, unsigned offset, int value) +static int spics_set_value(struct gpio_chip *chip, unsigned int offset, + int value) { struct spear_spics *spics = gpiochip_get_data(chip); u32 tmp; @@ -77,18 +69,14 @@ static void spics_set_value(struct gpio_chip *chip, unsigned offset, int value) tmp &= ~(0x1 << spics->cs_value_bit); tmp |= value << spics->cs_value_bit; writel_relaxed(tmp, spics->base + spics->perip_cfg); -} -static int spics_direction_input(struct gpio_chip *chip, unsigned offset) -{ - return -ENXIO; + return 0; } static int spics_direction_output(struct gpio_chip *chip, unsigned offset, int value) { - spics_set_value(chip, offset, value); - return 0; + return spics_set_value(chip, offset, value); } static int spics_request(struct gpio_chip *chip, unsigned offset) @@ -151,9 +139,7 @@ static int spics_gpio_probe(struct platform_device *pdev) spics->chip.base = -1; spics->chip.request = spics_request; spics->chip.free = spics_free; - spics->chip.direction_input = spics_direction_input; spics->chip.direction_output = spics_direction_output; - spics->chip.get = spics_get_value; spics->chip.set = spics_set_value; spics->chip.label = dev_name(&pdev->dev); spics->chip.parent = &pdev->dev; |