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authorBartosz Golaszewski <bartosz.golaszewski@linaro.org>2025-02-20 10:57:03 +0100
committerBartosz Golaszewski <bartosz.golaszewski@linaro.org>2025-02-26 11:17:39 +0100
commitfe69bedc77c119ffd4e27778eec03c89acb8e87b (patch)
treee03c80486711c3da615b758a878c86ff9548ff42
parent98ce1eb1fd87ea1b016e0913ef6836ab0139b5c4 (diff)
gpio: sim: use value returning setters
struct gpio_chip now has additional variants of the set(_multiple) driver callbacks that return an integer to indicate success or failure. Convert the driver to using them. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Link: https://lore.kernel.org/r/20250220-gpio-set-retval-v2-6-bc4cfd38dae3@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
-rw-r--r--drivers/gpio/gpio-sim.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/gpio/gpio-sim.c b/drivers/gpio/gpio-sim.c
index 758933fbd85b..f638219a7c4f 100644
--- a/drivers/gpio/gpio-sim.c
+++ b/drivers/gpio/gpio-sim.c
@@ -120,12 +120,14 @@ static int gpio_sim_get(struct gpio_chip *gc, unsigned int offset)
return !!test_bit(offset, chip->value_map);
}
-static void gpio_sim_set(struct gpio_chip *gc, unsigned int offset, int value)
+static int gpio_sim_set(struct gpio_chip *gc, unsigned int offset, int value)
{
struct gpio_sim_chip *chip = gpiochip_get_data(gc);
scoped_guard(mutex, &chip->lock)
__assign_bit(offset, chip->value_map, value);
+
+ return 0;
}
static int gpio_sim_get_multiple(struct gpio_chip *gc,
@@ -139,14 +141,16 @@ static int gpio_sim_get_multiple(struct gpio_chip *gc,
return 0;
}
-static void gpio_sim_set_multiple(struct gpio_chip *gc,
- unsigned long *mask, unsigned long *bits)
+static int gpio_sim_set_multiple(struct gpio_chip *gc,
+ unsigned long *mask, unsigned long *bits)
{
struct gpio_sim_chip *chip = gpiochip_get_data(gc);
scoped_guard(mutex, &chip->lock)
bitmap_replace(chip->value_map, chip->value_map, bits, mask,
gc->ngpio);
+
+ return 0;
}
static int gpio_sim_direction_output(struct gpio_chip *gc,
@@ -482,9 +486,9 @@ static int gpio_sim_add_bank(struct fwnode_handle *swnode, struct device *dev)
gc->parent = dev;
gc->fwnode = swnode;
gc->get = gpio_sim_get;
- gc->set = gpio_sim_set;
+ gc->set_rv = gpio_sim_set;
gc->get_multiple = gpio_sim_get_multiple;
- gc->set_multiple = gpio_sim_set_multiple;
+ gc->set_multiple_rv = gpio_sim_set_multiple;
gc->direction_output = gpio_sim_direction_output;
gc->direction_input = gpio_sim_direction_input;
gc->get_direction = gpio_sim_get_direction;