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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>
110 lines
2.1 KiB
C
110 lines
2.1 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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#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 <log.h>
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#include <malloc.h>
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#include <asm/gpio.h>
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struct led_gpio_priv {
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struct gpio_desc gpio;
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};
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static int gpio_led_set_state(struct udevice *dev, enum led_state_t state)
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{
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struct led_gpio_priv *priv = dev_get_priv(dev);
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int ret;
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if (!dm_gpio_is_valid(&priv->gpio))
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return -EREMOTEIO;
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switch (state) {
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case LEDST_OFF:
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case LEDST_ON:
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break;
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case LEDST_TOGGLE:
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ret = dm_gpio_get_value(&priv->gpio);
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if (ret < 0)
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return ret;
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state = !ret;
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break;
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default:
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return -ENOSYS;
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}
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return dm_gpio_set_value(&priv->gpio, state);
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}
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static enum led_state_t gpio_led_get_state(struct udevice *dev)
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{
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struct led_gpio_priv *priv = dev_get_priv(dev);
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int ret;
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if (!dm_gpio_is_valid(&priv->gpio))
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return -EREMOTEIO;
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ret = dm_gpio_get_value(&priv->gpio);
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if (ret < 0)
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return ret;
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return ret ? LEDST_ON : LEDST_OFF;
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}
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static int led_gpio_probe(struct udevice *dev)
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{
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struct led_gpio_priv *priv = dev_get_priv(dev);
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return gpio_request_by_name(dev, "gpios", 0, &priv->gpio, GPIOD_IS_OUT);
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}
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static int led_gpio_remove(struct udevice *dev)
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{
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/*
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* The GPIO driver may have already been removed. We will need to
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* address this more generally.
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*/
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#ifndef CONFIG_SANDBOX
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struct led_gpio_priv *priv = dev_get_priv(dev);
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if (dm_gpio_is_valid(&priv->gpio))
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dm_gpio_free(dev, &priv->gpio);
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#endif
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return 0;
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}
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static int led_gpio_bind(struct udevice *parent)
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{
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return led_bind_generic(parent, "gpio_led");
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}
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static const struct led_ops gpio_led_ops = {
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.set_state = gpio_led_set_state,
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.get_state = gpio_led_get_state,
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};
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U_BOOT_DRIVER(led_gpio) = {
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.name = "gpio_led",
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.id = UCLASS_LED,
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.ops = &gpio_led_ops,
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.priv_auto = sizeof(struct led_gpio_priv),
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.probe = led_gpio_probe,
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.remove = led_gpio_remove,
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};
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static const struct udevice_id led_gpio_ids[] = {
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{ .compatible = "gpio-leds" },
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{ }
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};
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U_BOOT_DRIVER(led_gpio_wrap) = {
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.name = "gpio_led_wrap",
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.id = UCLASS_NOP,
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.of_match = led_gpio_ids,
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.bind = led_gpio_bind,
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};
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