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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
138 lines
2.8 KiB
C
138 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2015 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#define LOG_CATEGORY UCLASS_LED
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <led.h>
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#include <dm/device-internal.h>
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#include <dm/lists.h>
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#include <dm/root.h>
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#include <dm/uclass-internal.h>
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int led_bind_generic(struct udevice *parent, const char *driver_name)
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{
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struct udevice *dev;
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ofnode node;
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int ret;
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dev_for_each_subnode(node, parent) {
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ret = device_bind_driver_to_node(parent, driver_name,
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ofnode_get_name(node),
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node, &dev);
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if (ret)
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return ret;
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}
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return 0;
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}
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int led_get_by_label(const char *label, struct udevice **devp)
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{
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struct udevice *dev;
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struct uclass *uc;
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int ret;
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ret = uclass_get(UCLASS_LED, &uc);
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if (ret)
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return ret;
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uclass_foreach_dev(dev, uc) {
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struct led_uc_plat *uc_plat = dev_get_uclass_plat(dev);
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/* Ignore the top-level LED node */
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if (uc_plat->label && !strcmp(label, uc_plat->label))
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return uclass_get_device_tail(dev, 0, devp);
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}
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return -ENODEV;
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}
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int led_set_state(struct udevice *dev, enum led_state_t state)
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{
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struct led_ops *ops = led_get_ops(dev);
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if (!ops->set_state)
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return -ENOSYS;
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return ops->set_state(dev, state);
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}
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enum led_state_t led_get_state(struct udevice *dev)
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{
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struct led_ops *ops = led_get_ops(dev);
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if (!ops->get_state)
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return -ENOSYS;
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return ops->get_state(dev);
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}
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#ifdef CONFIG_LED_BLINK
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int led_set_period(struct udevice *dev, int period_ms)
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{
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struct led_ops *ops = led_get_ops(dev);
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if (!ops->set_period)
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return -ENOSYS;
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return ops->set_period(dev, period_ms);
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}
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#endif
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static int led_post_bind(struct udevice *dev)
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{
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struct led_uc_plat *uc_plat = dev_get_uclass_plat(dev);
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const char *default_state;
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if (!uc_plat->label)
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uc_plat->label = dev_read_string(dev, "label");
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if (!uc_plat->label && !dev_read_string(dev, "compatible"))
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uc_plat->label = ofnode_get_name(dev_ofnode(dev));
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uc_plat->default_state = LEDST_COUNT;
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default_state = dev_read_string(dev, "default-state");
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if (!default_state)
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return 0;
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if (!strncmp(default_state, "on", 2))
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uc_plat->default_state = LEDST_ON;
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else if (!strncmp(default_state, "off", 3))
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uc_plat->default_state = LEDST_OFF;
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else
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return 0;
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/*
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* In case the LED has default-state DT property, trigger
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* probe() to configure its default state during startup.
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*/
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dev_or_flags(dev, DM_FLAG_PROBE_AFTER_BIND);
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return 0;
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}
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static int led_post_probe(struct udevice *dev)
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{
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struct led_uc_plat *uc_plat = dev_get_uclass_plat(dev);
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if (uc_plat->default_state == LEDST_ON ||
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uc_plat->default_state == LEDST_OFF)
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led_set_state(dev, uc_plat->default_state);
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return 0;
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}
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UCLASS_DRIVER(led) = {
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.id = UCLASS_LED,
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.name = "led",
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.per_device_plat_auto = sizeof(struct led_uc_plat),
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.post_bind = led_post_bind,
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.post_probe = led_post_probe,
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};
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