mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-25 14:10:43 +00:00
69245e406e
This function is empty, drop it. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Patrice Chotard <patrice.chotard@foss.st.com> Cc: Patrick Delaunay <patrick.delaunay@foss.st.com> Cc: Sean Anderson <seanga2@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Steven Lawrance <steven.lawrance@softathome.com> Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
117 lines
2.4 KiB
C
117 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (c) 2015 Google, Inc
|
|
* Written by Simon Glass <sjg@chromium.org>
|
|
*/
|
|
|
|
#define LOG_CATEGORY UCLASS_LED
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <errno.h>
|
|
#include <led.h>
|
|
#include <dm/device-internal.h>
|
|
#include <dm/root.h>
|
|
#include <dm/uclass-internal.h>
|
|
|
|
int led_get_by_label(const char *label, struct udevice **devp)
|
|
{
|
|
struct udevice *dev;
|
|
struct uclass *uc;
|
|
int ret;
|
|
|
|
ret = uclass_get(UCLASS_LED, &uc);
|
|
if (ret)
|
|
return ret;
|
|
uclass_foreach_dev(dev, uc) {
|
|
struct led_uc_plat *uc_plat = dev_get_uclass_plat(dev);
|
|
|
|
/* Ignore the top-level LED node */
|
|
if (uc_plat->label && !strcmp(label, uc_plat->label))
|
|
return uclass_get_device_tail(dev, 0, devp);
|
|
}
|
|
|
|
return -ENODEV;
|
|
}
|
|
|
|
int led_set_state(struct udevice *dev, enum led_state_t state)
|
|
{
|
|
struct led_ops *ops = led_get_ops(dev);
|
|
|
|
if (!ops->set_state)
|
|
return -ENOSYS;
|
|
|
|
return ops->set_state(dev, state);
|
|
}
|
|
|
|
enum led_state_t led_get_state(struct udevice *dev)
|
|
{
|
|
struct led_ops *ops = led_get_ops(dev);
|
|
|
|
if (!ops->get_state)
|
|
return -ENOSYS;
|
|
|
|
return ops->get_state(dev);
|
|
}
|
|
|
|
#ifdef CONFIG_LED_BLINK
|
|
int led_set_period(struct udevice *dev, int period_ms)
|
|
{
|
|
struct led_ops *ops = led_get_ops(dev);
|
|
|
|
if (!ops->set_period)
|
|
return -ENOSYS;
|
|
|
|
return ops->set_period(dev, period_ms);
|
|
}
|
|
#endif
|
|
|
|
static int led_post_bind(struct udevice *dev)
|
|
{
|
|
struct led_uc_plat *uc_plat = dev_get_uclass_plat(dev);
|
|
const char *default_state;
|
|
|
|
uc_plat->label = dev_read_string(dev, "label");
|
|
if (!uc_plat->label)
|
|
uc_plat->label = ofnode_get_name(dev_ofnode(dev));
|
|
|
|
uc_plat->default_state = LEDST_COUNT;
|
|
|
|
default_state = dev_read_string(dev, "default-state");
|
|
if (!default_state)
|
|
return 0;
|
|
|
|
if (!strncmp(default_state, "on", 2))
|
|
uc_plat->default_state = LEDST_ON;
|
|
else if (!strncmp(default_state, "off", 3))
|
|
uc_plat->default_state = LEDST_OFF;
|
|
else
|
|
return 0;
|
|
|
|
/*
|
|
* In case the LED has default-state DT property, trigger
|
|
* probe() to configure its default state during startup.
|
|
*/
|
|
dev_or_flags(dev, DM_FLAG_PROBE_AFTER_BIND);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int led_post_probe(struct udevice *dev)
|
|
{
|
|
struct led_uc_plat *uc_plat = dev_get_uclass_plat(dev);
|
|
|
|
if (uc_plat->default_state == LEDST_ON ||
|
|
uc_plat->default_state == LEDST_OFF)
|
|
led_set_state(dev, uc_plat->default_state);
|
|
|
|
return 0;
|
|
}
|
|
|
|
UCLASS_DRIVER(led) = {
|
|
.id = UCLASS_LED,
|
|
.name = "led",
|
|
.per_device_plat_auto = sizeof(struct led_uc_plat),
|
|
.post_bind = led_post_bind,
|
|
.post_probe = led_post_probe,
|
|
};
|