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Message-ID: <20240615231152.28201-11-ansuelsmth@gmail.com>
Date: Sun, 16 Jun 2024 01:11:40 +0200
From: Christian Marangi <ansuelsmth@...il.com>
To: Pavel Machek <pavel@....cz>,
Lee Jones <lee@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Jacek Anaszewski <jacek.anaszewski@...il.com>,
linux-leds@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Christian Marangi <ansuelsmth@...il.com>
Subject: [PATCH v5 10/20] leds: leds-lp55xx: generalize led_brightness function
Generalize led_brightness function as the implementation is the same for
most of the lp55xx based LED driver.
Introduce a new option in device_config, reg_led_pwm_base since the reg
value is not the same for every LED chip.
Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
---
drivers/leds/leds-lp5521.c | 18 ++++--------------
drivers/leds/leds-lp5523.c | 17 ++++-------------
drivers/leds/leds-lp55xx-common.c | 14 ++++++++++++++
drivers/leds/leds-lp55xx-common.h | 3 +++
drivers/leds/leds-lp8501.c | 18 ++++--------------
5 files changed, 29 insertions(+), 41 deletions(-)
diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c
index 722b5cd9236e..e4d0dcdbf11b 100644
--- a/drivers/leds/leds-lp5521.c
+++ b/drivers/leds/leds-lp5521.c
@@ -241,19 +241,6 @@ static int lp5521_multicolor_brightness(struct lp55xx_led *led)
return ret;
}
-static int lp5521_led_brightness(struct lp55xx_led *led)
-{
- struct lp55xx_chip *chip = led->chip;
- int ret;
-
- mutex_lock(&chip->lock);
- ret = lp55xx_write(chip, LP5521_REG_LED_PWM_BASE + led->chan_nr,
- led->brightness);
- mutex_unlock(&chip->lock);
-
- return ret;
-}
-
static ssize_t show_engine_mode(struct device *dev,
struct device_attribute *attr,
char *buf, int nr)
@@ -388,9 +375,12 @@ static struct lp55xx_device_config lp5521_cfg = {
.prog_mem_base = {
.addr = LP5521_REG_R_PROG_MEM,
},
+ .reg_led_pwm_base = {
+ .addr = LP5521_REG_LED_PWM_BASE,
+ },
.max_channel = LP5521_MAX_LEDS,
.post_init_device = lp5521_post_init_device,
- .brightness_fn = lp5521_led_brightness,
+ .brightness_fn = lp55xx_led_brightness,
.multicolor_brightness_fn = lp5521_multicolor_brightness,
.set_led_current = lp5521_set_led_current,
.firmware_cb = lp55xx_firmware_loaded_cb,
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index 5525d60c342c..a3b4063d504e 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -683,18 +683,6 @@ static int lp5523_multicolor_brightness(struct lp55xx_led *led)
return ret;
}
-static int lp5523_led_brightness(struct lp55xx_led *led)
-{
- struct lp55xx_chip *chip = led->chip;
- int ret;
-
- mutex_lock(&chip->lock);
- ret = lp55xx_write(chip, LP5523_REG_LED_PWM_BASE + led->chan_nr,
- led->brightness);
- mutex_unlock(&chip->lock);
- return ret;
-}
-
static LP55XX_DEV_ATTR_RW(engine1_mode, show_engine1_mode, store_engine1_mode);
static LP55XX_DEV_ATTR_RW(engine2_mode, show_engine2_mode, store_engine2_mode);
static LP55XX_DEV_ATTR_RW(engine3_mode, show_engine3_mode, store_engine3_mode);
@@ -759,10 +747,13 @@ static struct lp55xx_device_config lp5523_cfg = {
.prog_mem_base = {
.addr = LP5523_REG_PROG_MEM,
},
+ .reg_led_pwm_base = {
+ .addr = LP5523_REG_LED_PWM_BASE,
+ },
.pages_per_engine = LP5523_PAGES_PER_ENGINE,
.max_channel = LP5523_MAX_LEDS,
.post_init_device = lp5523_post_init_device,
- .brightness_fn = lp5523_led_brightness,
+ .brightness_fn = lp55xx_led_brightness,
.multicolor_brightness_fn = lp5523_multicolor_brightness,
.set_led_current = lp5523_set_led_current,
.firmware_cb = lp55xx_firmware_loaded_cb,
diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index 51bbe91cc7f2..726283f155a0 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -242,6 +242,20 @@ void lp55xx_firmware_loaded_cb(struct lp55xx_chip *chip)
}
EXPORT_SYMBOL_GPL(lp55xx_firmware_loaded_cb);
+int lp55xx_led_brightness(struct lp55xx_led *led)
+{
+ struct lp55xx_chip *chip = led->chip;
+ const struct lp55xx_device_config *cfg = chip->cfg;
+ int ret;
+
+ mutex_lock(&chip->lock);
+ ret = lp55xx_write(chip, cfg->reg_led_pwm_base.addr + led->chan_nr,
+ led->brightness);
+ mutex_unlock(&chip->lock);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(lp55xx_led_brightness);
+
static void lp55xx_reset_device(struct lp55xx_chip *chip)
{
const struct lp55xx_device_config *cfg = chip->cfg;
diff --git a/drivers/leds/leds-lp55xx-common.h b/drivers/leds/leds-lp55xx-common.h
index cbc122c56828..4578418e5011 100644
--- a/drivers/leds/leds-lp55xx-common.h
+++ b/drivers/leds/leds-lp55xx-common.h
@@ -100,6 +100,7 @@ struct lp55xx_reg {
* @reset : Chip specific reset command
* @enable : Chip specific enable command
* @prog_mem_base : Chip specific base reg address for chip SMEM programming
+ * @reg_led_pwm_base : Chip specific base reg address for LED PWM conf
* @pages_per_engine : Assigned pages for each engine
* (if not set chip doesn't support pages)
* @max_channel : Maximum number of channels
@@ -118,6 +119,7 @@ struct lp55xx_device_config {
const struct lp55xx_reg reset;
const struct lp55xx_reg enable;
const struct lp55xx_reg prog_mem_base;
+ const struct lp55xx_reg reg_led_pwm_base;
const int pages_per_engine;
const int max_channel;
@@ -213,6 +215,7 @@ extern int lp55xx_run_engine_common(struct lp55xx_chip *chip);
extern int lp55xx_update_program_memory(struct lp55xx_chip *chip,
const u8 *data, size_t size);
extern void lp55xx_firmware_loaded_cb(struct lp55xx_chip *chip);
+extern int lp55xx_led_brightness(struct lp55xx_led *led);
/* common probe/remove function */
extern int lp55xx_probe(struct i2c_client *client);
diff --git a/drivers/leds/leds-lp8501.c b/drivers/leds/leds-lp8501.c
index 1ea7bb73cd22..8f1fd9525e9a 100644
--- a/drivers/leds/leds-lp8501.c
+++ b/drivers/leds/leds-lp8501.c
@@ -137,19 +137,6 @@ static void lp8501_run_engine(struct lp55xx_chip *chip, bool start)
lp55xx_run_engine_common(chip);
}
-static int lp8501_led_brightness(struct lp55xx_led *led)
-{
- struct lp55xx_chip *chip = led->chip;
- int ret;
-
- mutex_lock(&chip->lock);
- ret = lp55xx_write(chip, LP8501_REG_LED_PWM_BASE + led->chan_nr,
- led->brightness);
- mutex_unlock(&chip->lock);
-
- return ret;
-}
-
/* Chip specific configurations */
static struct lp55xx_device_config lp8501_cfg = {
.reg_op_mode = {
@@ -173,10 +160,13 @@ static struct lp55xx_device_config lp8501_cfg = {
.prog_mem_base = {
.addr = LP8501_REG_PROG_MEM,
},
+ .reg_led_pwm_base = {
+ .addr = LP8501_REG_LED_PWM_BASE,
+ },
.pages_per_engine = LP8501_PAGES_PER_ENGINE,
.max_channel = LP8501_MAX_LEDS,
.post_init_device = lp8501_post_init_device,
- .brightness_fn = lp8501_led_brightness,
+ .brightness_fn = lp55xx_led_brightness,
.set_led_current = lp8501_set_led_current,
.firmware_cb = lp55xx_firmware_loaded_cb,
.run_engine = lp8501_run_engine,
--
2.43.0
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