From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/mfd/ti-lmu.c | 122 +++++++++++++++-------------------------
1 files changed, 47 insertions(+), 75 deletions(-)
diff --git a/kernel/drivers/mfd/ti-lmu.c b/kernel/drivers/mfd/ti-lmu.c
index cfb411c..fd6e8c4 100644
--- a/kernel/drivers/mfd/ti-lmu.c
+++ b/kernel/drivers/mfd/ti-lmu.c
@@ -1,18 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* TI LMU (Lighting Management Unit) Core Driver
*
* Copyright 2017 Texas Instruments
*
* Author: Milo Kim <milo.kim@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/delay.h>
#include <linux/err.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/mfd/core.h>
@@ -21,28 +18,18 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
-#include <linux/of_gpio.h>
#include <linux/slab.h>
struct ti_lmu_data {
- struct mfd_cell *cells;
+ const struct mfd_cell *cells;
int num_cells;
unsigned int max_register;
};
static int ti_lmu_enable_hw(struct ti_lmu *lmu, enum ti_lmu_id id)
{
- int ret;
-
- if (gpio_is_valid(lmu->en_gpio)) {
- ret = devm_gpio_request_one(lmu->dev, lmu->en_gpio,
- GPIOF_OUT_INIT_HIGH, "lmu_hwen");
- if (ret) {
- dev_err(lmu->dev, "Can not request enable GPIO: %d\n",
- ret);
- return ret;
- }
- }
+ if (lmu->en_gpio)
+ gpiod_set_value(lmu->en_gpio, 1);
/* Delay about 1ms after HW enable pin control */
usleep_range(1000, 1500);
@@ -57,19 +44,12 @@
return 0;
}
-static void ti_lmu_disable_hw(struct ti_lmu *lmu)
+static void ti_lmu_disable_hw(void *data)
{
- if (gpio_is_valid(lmu->en_gpio))
- gpio_set_value(lmu->en_gpio, 0);
+ struct ti_lmu *lmu = data;
+ if (lmu->en_gpio)
+ gpiod_set_value(lmu->en_gpio, 0);
}
-
-static struct mfd_cell lm3532_devices[] = {
- {
- .name = "ti-lmu-backlight",
- .id = LM3532,
- .of_compatible = "ti,lm3532-backlight",
- },
-};
#define LM363X_REGULATOR(_id) \
{ \
@@ -78,7 +58,7 @@
.of_compatible = "ti,lm363x-regulator", \
} \
-static struct mfd_cell lm3631_devices[] = {
+static const struct mfd_cell lm3631_devices[] = {
LM363X_REGULATOR(LM3631_BOOST),
LM363X_REGULATOR(LM3631_LDO_CONT),
LM363X_REGULATOR(LM3631_LDO_OREF),
@@ -91,7 +71,7 @@
},
};
-static struct mfd_cell lm3632_devices[] = {
+static const struct mfd_cell lm3632_devices[] = {
LM363X_REGULATOR(LM3632_BOOST),
LM363X_REGULATOR(LM3632_LDO_POS),
LM363X_REGULATOR(LM3632_LDO_NEG),
@@ -102,7 +82,7 @@
},
};
-static struct mfd_cell lm3633_devices[] = {
+static const struct mfd_cell lm3633_devices[] = {
{
.name = "ti-lmu-backlight",
.id = LM3633,
@@ -120,7 +100,7 @@
},
};
-static struct mfd_cell lm3695_devices[] = {
+static const struct mfd_cell lm3695_devices[] = {
{
.name = "ti-lmu-backlight",
.id = LM3695,
@@ -128,17 +108,14 @@
},
};
-static struct mfd_cell lm3697_devices[] = {
+static const struct mfd_cell lm36274_devices[] = {
+ LM363X_REGULATOR(LM36274_BOOST),
+ LM363X_REGULATOR(LM36274_LDO_POS),
+ LM363X_REGULATOR(LM36274_LDO_NEG),
{
- .name = "ti-lmu-backlight",
- .id = LM3697,
- .of_compatible = "ti,lm3697-backlight",
- },
- /* Monitoring driver for open/short circuit detection */
- {
- .name = "ti-lmu-fault-monitor",
- .id = LM3697,
- .of_compatible = "ti,lm3697-fault-monitor",
+ .name = "lm36274-leds",
+ .id = LM36274,
+ .of_compatible = "ti,lm36274-backlight",
},
};
@@ -150,41 +127,27 @@
.max_register = max_reg, \
} \
-TI_LMU_DATA(lm3532, LM3532_MAX_REG);
TI_LMU_DATA(lm3631, LM3631_MAX_REG);
TI_LMU_DATA(lm3632, LM3632_MAX_REG);
TI_LMU_DATA(lm3633, LM3633_MAX_REG);
TI_LMU_DATA(lm3695, LM3695_MAX_REG);
-TI_LMU_DATA(lm3697, LM3697_MAX_REG);
-
-static const struct of_device_id ti_lmu_of_match[] = {
- { .compatible = "ti,lm3532", .data = &lm3532_data },
- { .compatible = "ti,lm3631", .data = &lm3631_data },
- { .compatible = "ti,lm3632", .data = &lm3632_data },
- { .compatible = "ti,lm3633", .data = &lm3633_data },
- { .compatible = "ti,lm3695", .data = &lm3695_data },
- { .compatible = "ti,lm3697", .data = &lm3697_data },
- { }
-};
-MODULE_DEVICE_TABLE(of, ti_lmu_of_match);
+TI_LMU_DATA(lm36274, LM36274_MAX_REG);
static int ti_lmu_probe(struct i2c_client *cl, const struct i2c_device_id *id)
{
struct device *dev = &cl->dev;
- const struct of_device_id *match;
const struct ti_lmu_data *data;
struct regmap_config regmap_cfg;
struct ti_lmu *lmu;
int ret;
- match = of_match_device(ti_lmu_of_match, dev);
- if (!match)
- return -ENODEV;
/*
* Get device specific data from of_match table.
* This data is defined by using TI_LMU_DATA() macro.
*/
- data = (struct ti_lmu_data *)match->data;
+ data = of_device_get_match_data(dev);
+ if (!data)
+ return -ENODEV;
lmu = devm_kzalloc(dev, sizeof(*lmu), GFP_KERNEL);
if (!lmu)
@@ -204,8 +167,18 @@
return PTR_ERR(lmu->regmap);
/* HW enable pin control and additional power up sequence if required */
- lmu->en_gpio = of_get_named_gpio(dev->of_node, "enable-gpios", 0);
+ lmu->en_gpio = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_HIGH);
+ if (IS_ERR(lmu->en_gpio)) {
+ ret = PTR_ERR(lmu->en_gpio);
+ dev_err(dev, "Can not request enable GPIO: %d\n", ret);
+ return ret;
+ }
+
ret = ti_lmu_enable_hw(lmu, id->driver_data);
+ if (ret)
+ return ret;
+
+ ret = devm_add_action_or_reset(dev, ti_lmu_disable_hw, lmu);
if (ret)
return ret;
@@ -218,33 +191,32 @@
i2c_set_clientdata(cl, lmu);
- return mfd_add_devices(lmu->dev, 0, data->cells,
- data->num_cells, NULL, 0, NULL);
+ return devm_mfd_add_devices(lmu->dev, 0, data->cells,
+ data->num_cells, NULL, 0, NULL);
}
-static int ti_lmu_remove(struct i2c_client *cl)
-{
- struct ti_lmu *lmu = i2c_get_clientdata(cl);
-
- ti_lmu_disable_hw(lmu);
- mfd_remove_devices(lmu->dev);
- return 0;
-}
+static const struct of_device_id ti_lmu_of_match[] = {
+ { .compatible = "ti,lm3631", .data = &lm3631_data },
+ { .compatible = "ti,lm3632", .data = &lm3632_data },
+ { .compatible = "ti,lm3633", .data = &lm3633_data },
+ { .compatible = "ti,lm3695", .data = &lm3695_data },
+ { .compatible = "ti,lm36274", .data = &lm36274_data },
+ { }
+};
+MODULE_DEVICE_TABLE(of, ti_lmu_of_match);
static const struct i2c_device_id ti_lmu_ids[] = {
- { "lm3532", LM3532 },
{ "lm3631", LM3631 },
{ "lm3632", LM3632 },
{ "lm3633", LM3633 },
{ "lm3695", LM3695 },
- { "lm3697", LM3697 },
+ { "lm36274", LM36274 },
{ }
};
MODULE_DEVICE_TABLE(i2c, ti_lmu_ids);
static struct i2c_driver ti_lmu_driver = {
.probe = ti_lmu_probe,
- .remove = ti_lmu_remove,
.driver = {
.name = "ti-lmu",
.of_match_table = ti_lmu_of_match,
--
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