torvalds/linux
3
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-03-24 00:16:55 +08:00
Code Issues Packages Projects Releases Wiki Activity

gpio: em: use new line value setter callbacks

Browse Source 
struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20250407-gpiochip-set-rv-gpio-part1-v1-3-78399683ca38@linaro.org
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
This commit is contained in:
Bartosz Golaszewski
2025-04-07 09:13:12 +02:00
committed by Bartosz Golaszewski
parent 21d3c6531b
commit 097cf61ba5
1 changed files with 4 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpio/gpio-em.c
View File

@@ -204,13 +204,15 @@ static void __em_gio_set(struct gpio_chip *chip, unsigned int reg,
(BIT(shift + 16)) | (value << shift));
}
static void em_gio_set(struct gpio_chip *chip, unsigned offset, int value)
static int em_gio_set(struct gpio_chip *chip, unsigned int offset, int value)
{
/* output is split into two registers */
if (offset < 16)
__em_gio_set(chip, GIO_OL, offset, value);
else
__em_gio_set(chip, GIO_OH, offset - 16, value);
return 0;
}
static int em_gio_direction_output(struct gpio_chip *chip, unsigned offset,
@@ -304,7 +306,7 @@ static int em_gio_probe(struct platform_device *pdev)
gpio_chip->direction_input = em_gio_direction_input;
gpio_chip->get = em_gio_get;
gpio_chip->direction_output = em_gio_direction_output;
gpio_chip->set = em_gio_set;
gpio_chip->set_rv = em_gio_set;
gpio_chip->to_irq = em_gio_to_irq;
gpio_chip->request = pinctrl_gpio_request;
gpio_chip->free = em_gio_free;