From f70575805708cabdedea7498aaa3f710fde4d920 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 03:29:01 +0000
Subject: [PATCH] add lvds1024*800
---
kernel/drivers/leds/leds-lt3593.c | 96 ++++++------------------------------------------
1 files changed, 12 insertions(+), 84 deletions(-)
diff --git a/kernel/drivers/leds/leds-lt3593.c b/kernel/drivers/leds/leds-lt3593.c
index de3623e..7dab087 100644
--- a/kernel/drivers/leds/leds-lt3593.c
+++ b/kernel/drivers/leds/leds-lt3593.c
@@ -5,15 +5,14 @@
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/delay.h>
-#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/of.h>
-#include <uapi/linux/uleds.h>
+
+#define LED_LT3593_NAME "lt3593"
struct lt3593_led_data {
- char name[LED_MAX_NAME_SIZE];
struct led_classdev cdev;
struct gpio_desc *gpiod;
};
@@ -60,68 +59,16 @@
return 0;
}
-static struct lt3593_led_data *lt3593_led_probe_pdata(struct device *dev)
-{
- struct gpio_led_platform_data *pdata = dev_get_platdata(dev);
- const struct gpio_led *template = &pdata->leds[0];
- struct lt3593_led_data *led_data;
- int ret, state;
-
- if (pdata->num_leds != 1)
- return ERR_PTR(-EINVAL);
-
- led_data = devm_kzalloc(dev, sizeof(*led_data), GFP_KERNEL);
- if (!led_data)
- return ERR_PTR(-ENOMEM);
-
- led_data->cdev.name = template->name;
- led_data->cdev.default_trigger = template->default_trigger;
- led_data->cdev.brightness_set_blocking = lt3593_led_set;
-
- state = (template->default_state == LEDS_GPIO_DEFSTATE_ON);
- led_data->cdev.brightness = state ? LED_FULL : LED_OFF;
-
- if (!template->retain_state_suspended)
- led_data->cdev.flags |= LED_CORE_SUSPENDRESUME;
-
- ret = devm_gpio_request_one(dev, template->gpio, state ?
- GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW,
- template->name);
- if (ret < 0)
- return ERR_PTR(ret);
-
- led_data->gpiod = gpio_to_desc(template->gpio);
- if (!led_data->gpiod)
- return ERR_PTR(-EPROBE_DEFER);
-
- ret = devm_led_classdev_register(dev, &led_data->cdev);
- if (ret < 0)
- return ERR_PTR(ret);
-
- dev_info(dev, "registered LT3593 LED '%s' at GPIO %d\n",
- template->name, template->gpio);
-
- return led_data;
-}
-
static int lt3593_led_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct lt3593_led_data *led_data;
struct fwnode_handle *child;
int ret, state = LEDS_GPIO_DEFSTATE_OFF;
- enum gpiod_flags flags = GPIOD_OUT_LOW;
+ struct led_init_data init_data = {};
const char *tmp;
- if (dev_get_platdata(dev)) {
- led_data = lt3593_led_probe_pdata(dev);
- if (IS_ERR(led_data))
- return PTR_ERR(led_data);
-
- goto out;
- }
-
- if (!dev->of_node)
+ if (!dev_of_node(dev))
return -ENODEV;
led_data = devm_kzalloc(dev, sizeof(*led_data), GFP_KERNEL);
@@ -139,52 +86,33 @@
child = device_get_next_child_node(dev, NULL);
- ret = fwnode_property_read_string(child, "label", &tmp);
- if (ret < 0)
- snprintf(led_data->name, sizeof(led_data->name),
- "lt3593::");
- else
- snprintf(led_data->name, sizeof(led_data->name),
- "lt3593:%s", tmp);
-
- fwnode_property_read_string(child, "linux,default-trigger",
- &led_data->cdev.default_trigger);
-
if (!fwnode_property_read_string(child, "default-state", &tmp)) {
- if (!strcmp(tmp, "keep")) {
- state = LEDS_GPIO_DEFSTATE_KEEP;
- flags = GPIOD_ASIS;
- } else if (!strcmp(tmp, "on")) {
+ if (!strcmp(tmp, "on"))
state = LEDS_GPIO_DEFSTATE_ON;
- flags = GPIOD_OUT_HIGH;
- }
}
- led_data->cdev.name = led_data->name;
led_data->cdev.brightness_set_blocking = lt3593_led_set;
led_data->cdev.brightness = state ? LED_FULL : LED_OFF;
- ret = devm_led_classdev_register(dev, &led_data->cdev);
- if (ret < 0) {
- fwnode_handle_put(child);
+ init_data.fwnode = child;
+ init_data.devicename = LED_LT3593_NAME;
+ init_data.default_label = ":";
+
+ ret = devm_led_classdev_register_ext(dev, &led_data->cdev, &init_data);
+ fwnode_handle_put(child);
+ if (ret < 0)
return ret;
- }
- led_data->cdev.dev->of_node = dev->of_node;
-
-out:
platform_set_drvdata(pdev, led_data);
return 0;
}
-#ifdef CONFIG_OF
static const struct of_device_id of_lt3593_leds_match[] = {
{ .compatible = "lltc,lt3593", },
{},
};
MODULE_DEVICE_TABLE(of, of_lt3593_leds_match);
-#endif
static struct platform_driver lt3593_led_driver = {
.probe = lt3593_led_probe,
--
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