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led: introduce led_bind_generic()

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All existing drivers in drivers/led/ contain a .bind method that does
exactly the same thing, with just the actual driver name
differing. Create a helper so all those individual methods can be
changed to one-liners.

Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
This commit is contained in:
Rasmus Villemoes 2023-11-17 12:38:08 +01:00 • committed by Tom Rini
parent 067e4ce35b
commit 3bf0515a07
2 changed files with 26 additions and 0 deletions
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18
drivers/led/led-uclass.c
View file

@ -11,9 +11,27 @@
#include <errno.h>
#include <led.h>
#include <dm/device-internal.h>
#include <dm/lists.h>
#include <dm/root.h>
#include <dm/uclass-internal.h>
int led_bind_generic(struct udevice *parent, const char *driver_name)
{
struct udevice *dev;
ofnode node;
int ret;
dev_for_each_subnode(node, parent) {
ret = device_bind_driver_to_node(parent, driver_name,
ofnode_get_name(node),
node, &dev);
if (ret)
return ret;
}
return 0;
}
int led_get_by_label(const char *label, struct udevice **devp)
{
struct udevice *dev;

8
include/led.h
View file

@ -110,4 +110,12 @@ enum led_state_t led_get_state(struct udevice *dev);
*/
int led_set_period(struct udevice *dev, int period_ms);
/**
* led_bind_generic() - bind children of parent to given driver
*
* @parent: Top-level LED device
* @driver_name: Driver for handling individual child nodes
*/
int led_bind_generic(struct udevice *parent, const char *driver_name);
#endif