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gpiolib: Extract gpiochip_choose_fwnode() for wider use

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Extract gpiochip_choose_fwnode() for the future use in another function.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Reviewed-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250213195621.3133406-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Andy Shevchenko
2025-02-13 21:48:46 +02:00
committed by Bartosz Golaszewski
parent 63cdf6241a
commit 375790f183
1 changed files with 16 additions and 8 deletions
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24
drivers/gpio/gpiolib.c
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@@ -883,6 +883,21 @@ void *gpiochip_get_data(struct gpio_chip *gc)
}
EXPORT_SYMBOL_GPL(gpiochip_get_data);
/*
* If the calling driver provides the specific firmware node,
* use it. Otherwise use the one from the parent device, if any.
*/
static struct fwnode_handle *gpiochip_choose_fwnode(struct gpio_chip *gc)
{
if (gc->fwnode)
return gc->fwnode;
if (gc->parent)
return dev_fwnode(gc->parent);
return NULL;
}
int gpiochip_get_ngpios(struct gpio_chip *gc, struct device *dev)
{
u32 ngpios = gc->ngpio;
@@ -942,14 +957,7 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
gc->gpiodev = gdev;
gpiochip_set_data(gc, data);
/*
* If the calling driver did not initialize firmware node,
* do it here using the parent device, if any.
*/
if (gc->fwnode)
device_set_node(&gdev->dev, gc->fwnode);
else if (gc->parent)
device_set_node(&gdev->dev, dev_fwnode(gc->parent));
device_set_node(&gdev->dev, gpiochip_choose_fwnode(gc));
gdev->id = ida_alloc(&gpio_ida, GFP_KERNEL);
if (gdev->id < 0) {