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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2020 Philippe Reynes <philippe.reynes@softathome.com>
*
* Based on led-uclass.c
*/
#include <common.h>
#include <button.h>
#include <dm.h>
#include <dm/uclass-internal.h>
int button_get_by_label(const char *label, struct udevice **devp)
{
struct udevice *dev;
struct uclass *uc;
uclass_id_foreach_dev(UCLASS_BUTTON, dev, uc) {
struct button_uc_plat *uc_plat = dev_get_uclass_platdata(dev);
/* Ignore the top-level button node */
if (uc_plat->label && !strcmp(label, uc_plat->label))
return uclass_get_device_tail(dev, 0, devp);
}
return -ENODEV;
}
enum button_state_t button_get_state(struct udevice *dev)
{
struct button_ops *ops = button_get_ops(dev);
if (!ops->get_state)
return -ENOSYS;
return ops->get_state(dev);
}
UCLASS_DRIVER(button) = {
.id = UCLASS_BUTTON,
.name = "button",
.per_device_platdata_auto_alloc_size = sizeof(struct button_uc_plat),
};
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