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authorThomas Richard <thomas.richard@bootlin.com>2025-08-11 16:25:45 +0300
committerBartosz Golaszewski <bartosz.golaszewski@linaro.org>2025-08-11 16:39:31 +0300
commit871c7cd54830c0bda15513238ea9d46fc1cae991 (patch)
tree92b944af754f511773fbf1426d7cf33178d934c6 /drivers/gpio/gpio-aggregator.c
parent181fe022ecf8a8e85def0e94852c631c59a8b3f6 (diff)
downloadlinux-871c7cd54830c0bda15513238ea9d46fc1cae991.tar.xz
gpio: aggregator: move GPIO forwarder allocation in a dedicated function
Move the GPIO forwarder allocation and static initialization in a dedicated function. Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Thomas Richard <thomas.richard@bootlin.com> Link: https://lore.kernel.org/r/20250811-aaeon-up-board-pinctrl-support-v9-2-29f0cbbdfb30@bootlin.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-aggregator.c')
-rw-r--r--drivers/gpio/gpio-aggregator.c50
1 files changed, 32 insertions, 18 deletions
diff --git a/drivers/gpio/gpio-aggregator.c b/drivers/gpio/gpio-aggregator.c
index af9d8b3a711d..75c8d0deef2f 100644
--- a/drivers/gpio/gpio-aggregator.c
+++ b/drivers/gpio/gpio-aggregator.c
@@ -475,6 +475,35 @@ static int gpiochip_fwd_setup_delay_line(struct device *dev, struct gpio_chip *c
}
#endif /* !CONFIG_OF_GPIO */
+static struct gpiochip_fwd *
+devm_gpiochip_fwd_alloc(struct device *dev, unsigned int ngpios)
+{
+ struct gpiochip_fwd *fwd;
+ struct gpio_chip *chip;
+
+ fwd = devm_kzalloc(dev, struct_size(fwd, tmp, fwd_tmp_size(ngpios)), GFP_KERNEL);
+ if (!fwd)
+ return ERR_PTR(-ENOMEM);
+
+ chip = &fwd->chip;
+
+ chip->label = dev_name(dev);
+ chip->parent = dev;
+ chip->owner = THIS_MODULE;
+ chip->get_direction = gpio_fwd_get_direction;
+ chip->direction_input = gpio_fwd_direction_input;
+ chip->direction_output = gpio_fwd_direction_output;
+ chip->get = gpio_fwd_get;
+ chip->get_multiple = gpio_fwd_get_multiple_locked;
+ chip->set = gpio_fwd_set;
+ chip->set_multiple = gpio_fwd_set_multiple_locked;
+ chip->to_irq = gpio_fwd_to_irq;
+ chip->base = -1;
+ chip->ngpio = ngpios;
+
+ return fwd;
+}
+
/**
* gpiochip_fwd_create() - Create a new GPIO forwarder
* @dev: Parent device pointer
@@ -495,16 +524,14 @@ static struct gpiochip_fwd *gpiochip_fwd_create(struct device *dev,
struct gpio_desc *descs[],
unsigned long features)
{
- const char *label = dev_name(dev);
struct gpiochip_fwd *fwd;
struct gpio_chip *chip;
unsigned int i;
int error;
- fwd = devm_kzalloc(dev, struct_size(fwd, tmp, fwd_tmp_size(ngpios)),
- GFP_KERNEL);
- if (!fwd)
- return ERR_PTR(-ENOMEM);
+ fwd = devm_gpiochip_fwd_alloc(dev, ngpios);
+ if (IS_ERR(fwd))
+ return fwd;
chip = &fwd->chip;
@@ -526,19 +553,6 @@ static struct gpiochip_fwd *gpiochip_fwd_create(struct device *dev,
chip->set_config = gpio_fwd_set_config;
}
- chip->label = label;
- chip->parent = dev;
- chip->owner = THIS_MODULE;
- chip->get_direction = gpio_fwd_get_direction;
- chip->direction_input = gpio_fwd_direction_input;
- chip->direction_output = gpio_fwd_direction_output;
- chip->get = gpio_fwd_get;
- chip->get_multiple = gpio_fwd_get_multiple_locked;
- chip->set = gpio_fwd_set;
- chip->set_multiple = gpio_fwd_set_multiple_locked;
- chip->to_irq = gpio_fwd_to_irq;
- chip->base = -1;
- chip->ngpio = ngpios;
fwd->descs = descs;
if (chip->can_sleep)