From 297b60346df8beafee954a0fd7c2d64f33f3b9bc Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 01:44:05 +0000
Subject: [PATCH] rtl8211F_led_control
---
kernel/drivers/leds/leds-is31fl319x.c | 41 +++++++++++++++++++++++------------------
1 files changed, 23 insertions(+), 18 deletions(-)
diff --git a/kernel/drivers/leds/leds-is31fl319x.c b/kernel/drivers/leds/leds-is31fl319x.c
index f123309..4161b9d 100644
--- a/kernel/drivers/leds/leds-is31fl319x.c
+++ b/kernel/drivers/leds/leds-is31fl319x.c
@@ -1,15 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright 2015-16 Golden Delicious Computers
*
* Author: Nikolaus Schaller <hns@goldelico.com>
*
- * This file is subject to the terms and conditions of version 2 of
- * the GNU General Public License. See the file COPYING in the main
- * directory of this archive for more details.
- *
* LED driver for the IS31FL319{0,1,3,6,9} to drive 1, 3, 6 or 9 light
* effect LEDs.
- *
*/
#include <linux/err.h>
@@ -20,6 +16,8 @@
#include <linux/of_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
/* register numbers */
#define IS31FL319X_SHUTDOWN 0x00
@@ -65,6 +63,7 @@
struct is31fl319x_chip {
const struct is31fl319x_chipdef *cdef;
struct i2c_client *client;
+ struct gpio_desc *shutdown_gpio;
struct regmap *regmap;
struct mutex lock;
u32 audio_gain_db;
@@ -203,26 +202,27 @@
static int is31fl319x_parse_dt(struct device *dev,
struct is31fl319x_chip *is31)
{
- struct device_node *np = dev->of_node, *child;
- const struct of_device_id *of_dev_id;
+ struct device_node *np = dev_of_node(dev), *child;
int count;
int ret;
if (!np)
return -ENODEV;
- of_dev_id = of_match_device(of_is31fl319x_match, dev);
- if (!of_dev_id) {
- dev_err(dev, "Failed to match device with supported chips\n");
- return -EINVAL;
+ is31->shutdown_gpio = devm_gpiod_get_optional(dev,
+ "shutdown",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(is31->shutdown_gpio)) {
+ ret = PTR_ERR(is31->shutdown_gpio);
+ dev_err(dev, "Failed to get shutdown gpio: %d\n", ret);
+ return ret;
}
- is31->cdef = of_dev_id->data;
+ is31->cdef = device_get_match_data(dev);
- count = of_get_child_count(np);
+ count = of_get_available_child_count(np);
- dev_dbg(dev, "probe %s with %d leds defined in DT\n",
- of_dev_id->compatible, count);
+ dev_dbg(dev, "probing with %d leds defined in DT\n", count);
if (!count || count > is31->cdef->num_leds) {
dev_err(dev, "Number of leds defined must be between 1 and %u\n",
@@ -230,7 +230,7 @@
return -ENODEV;
}
- for_each_child_of_node(np, child) {
+ for_each_available_child_of_node(np, child) {
struct is31fl319x_led *led;
u32 reg;
@@ -337,12 +337,11 @@
{
struct is31fl319x_chip *is31;
struct device *dev = &client->dev;
- struct i2c_adapter *adapter = to_i2c_adapter(dev->parent);
int err;
int i = 0;
u32 aggregated_led_microamp = IS31FL319X_CURRENT_MAX;
- if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
return -EIO;
is31 = devm_kzalloc(&client->dev, sizeof(*is31), GFP_KERNEL);
@@ -355,6 +354,12 @@
if (err)
goto free_mutex;
+ if (is31->shutdown_gpio) {
+ gpiod_direction_output(is31->shutdown_gpio, 0);
+ mdelay(5);
+ gpiod_direction_output(is31->shutdown_gpio, 1);
+ }
+
is31->client = client;
is31->regmap = devm_regmap_init_i2c(client, ®map_config);
if (IS_ERR(is31->regmap)) {
--
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