[PATCH leds v2 50/50] leds: parse linux,default-trigger DT property in LED core

Marek Behún
2020-09-17T22:34:33Z

Do parsing of `linux,default-trigger` DT property to LED core. Currently
it is done in many different drivers and the code is repeated.

This patch removes the parsing from 21 drivers:
an30259a, aw2013, bcm6328, bcm6358, cr0014114, el15203000, gpio,
is31fl319x, is31fl32xx, lm3532, lm36274, lm3692x, lm3697, lp8860,
lt3593, max77650, mt6323, ns2, pm8058, tlc591xx and turris-omnia.

There are still 11 drivers that parse this property on their own because
they do not pass the led_init_data structure to the registering
function. I will try to refactor those in the future.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
---
drivers/leds/led-class.c | 5 +++++
drivers/leds/leds-an30259a.c | 3 ---
drivers/leds/leds-aw2013.c | 3 ---
drivers/leds/leds-bcm6328.c | 4 ----
drivers/leds/leds-bcm6358.c | 4 ----
drivers/leds/leds-cr0014114.c | 3 ---
drivers/leds/leds-el15203000.c | 3 ---
drivers/leds/leds-gpio.c | 3 ---
drivers/leds/leds-is31fl319x.c | 5 -----
drivers/leds/leds-is31fl32xx.c | 3 ---
drivers/leds/leds-lm3532.c | 3 ---
drivers/leds/leds-lm36274.c | 3 ---
drivers/leds/leds-lm3692x.c | 3 ---
drivers/leds/leds-lm3697.c | 3 ---
drivers/leds/leds-lp8860.c | 4 ----
drivers/leds/leds-lt3593.c | 3 ---
drivers/leds/leds-max77650.c | 3 ---
drivers/leds/leds-mt6323.c | 4 ----
drivers/leds/leds-ns2.c | 3 ---
drivers/leds/leds-pm8058.c | 2 --
drivers/leds/leds-tlc591xx.c | 3 ---
drivers/leds/leds-turris-omnia.c | 2 --
22 files changed, 5 insertions(+), 67 deletions(-)

diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index cc3929f858b68..131ca83f5fb38 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -354,6 +354,11 @@ int led_classdev_register_ext(struct device *parent,
ret = led_compose_name(parent, init_data, composed_name);
if (ret < 0)
return ret;
+
+ if (init_data->fwnode)
+ fwnode_property_read_string(init_data->fwnode,
+ "linux,default-trigger",
+ &led_cdev->default_trigger);
} else {
proposed_name = led_cdev->name;
}
diff --git a/drivers/leds/leds-an30259a.c b/drivers/leds/leds-an30259a.c
index 9749f1cc3e15f..a0df1fb28774d 100644
--- a/drivers/leds/leds-an30259a.c
+++ b/drivers/leds/leds-an30259a.c
@@ -238,9 +238,6 @@ static int an30259a_dt_init(struct i2c_client *client,
led->default_state = STATE_OFF;
}

- of_property_read_string(child, "linux,default-trigger",
- &led->cdev.default_trigger);
-
i++;
}

diff --git a/drivers/leds/leds-aw2013.c b/drivers/leds/leds-aw2013.c
index 927c5ba32592f..80d937454aeef 100644
--- a/drivers/leds/leds-aw2013.c
+++ b/drivers/leds/leds-aw2013.c
@@ -297,9 +297,6 @@ static int aw2013_probe_dt(struct aw2013 *chip)
"DT property led-max-microamp is missing\n");
}

- of_property_read_string(child, "linux,default-trigger",
- &led->cdev.default_trigger);
-
led->cdev.brightness_set_blocking = aw2013_brightness_set;
led->cdev.blink_set = aw2013_blink_set;

diff --git a/drivers/leds/leds-bcm6328.c b/drivers/leds/leds-bcm6328.c
index 38bf820372528..f89ca2143b95d 100644
--- a/drivers/leds/leds-bcm6328.c
+++ b/drivers/leds/leds-bcm6328.c
@@ -346,10 +346,6 @@ static int bcm6328_led(struct device *dev, struct device_node *nc, u32 reg,
if (of_property_read_bool(nc, "active-low"))
led->active_low = true;

- led->cdev.default_trigger = of_get_property(nc,
- "linux,default-trigger",
- NULL);
-
if (!of_property_read_string(nc, "default-state", &state)) {
if (!strcmp(state, "on")) {
led->cdev.brightness = LED_FULL;
diff --git a/drivers/leds/leds-bcm6358.c b/drivers/leds/leds-bcm6358.c
index 71c49d5fa811f..aabf68d276216 100644
--- a/drivers/leds/leds-bcm6358.c
+++ b/drivers/leds/leds-bcm6358.c
@@ -110,10 +110,6 @@ static int bcm6358_led(struct device *dev, struct device_node *nc, u32 reg,
if (of_property_read_bool(nc, "active-low"))
led->active_low = true;

- led->cdev.default_trigger = of_get_property(nc,
- "linux,default-trigger",
- NULL);
-
if (!of_property_read_string(nc, "default-state", &state)) {
if (!strcmp(state, "on")) {
led->cdev.brightness = LED_FULL;
diff --git a/drivers/leds/leds-cr0014114.c b/drivers/leds/leds-cr0014114.c
index a2f5638eda5f7..e0be7603d4791 100644
--- a/drivers/leds/leds-cr0014114.c
+++ b/drivers/leds/leds-cr0014114.c
@@ -188,9 +188,6 @@ static int cr0014114_probe_dt(struct cr0014114 *priv)
device_for_each_child_node(priv->dev, child) {
led = &priv->leds[i];

- fwnode_property_read_string(child, "linux,default-trigger",
- &led->ldev.default_trigger);
-
led->priv = priv;
led->ldev.max_brightness = CR_MAX_BRIGHTNESS;
led->ldev.brightness_set_blocking = cr0014114_set_sync;
diff --git a/drivers/leds/leds-el15203000.c b/drivers/leds/leds-el15203000.c
index bcd13a7fc9d02..f8a56ebd87060 100644
--- a/drivers/leds/leds-el15203000.c
+++ b/drivers/leds/leds-el15203000.c
@@ -263,9 +263,6 @@ static int el15203000_probe_dt(struct el15203000 *priv)
return -EINVAL;
}

- fwnode_property_read_string(child, "linux,default-trigger",
- &led->ldev.default_trigger);
-
led->priv = priv;
led->ldev.max_brightness = LED_ON;
led->ldev.brightness_set_blocking = el15203000_set_blocking;
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index aa740267eb232..09fd6b1e8fc38 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -160,9 +160,6 @@ static struct gpio_leds_priv *gpio_leds_create(struct platform_device *pdev)

led_dat->gpiod = led.gpiod;

- fwnode_property_read_string(child, "linux,default-trigger",
- &led.default_trigger);
-
if (!fwnode_property_read_string(child, "default-state",
&state)) {
if (!strcmp(state, "keep"))
diff --git a/drivers/leds/leds-is31fl319x.c b/drivers/leds/leds-is31fl319x.c
index ef5b3e08c7313..23616dded8284 100644
--- a/drivers/leds/leds-is31fl319x.c
+++ b/drivers/leds/leds-is31fl319x.c
@@ -293,11 +293,6 @@ static int is31fl319x_led_register(struct device *dev,
return -EEXIST;
}

- ret = of_property_read_string(np, "linux,default-trigger",
- &led->cdev.default_trigger);
- if (ret < 0 && ret != -EINVAL) /* is optional */
- return ret;
-
led->configured = true;
led->chip = is31;
led->cdev.brightness_set_blocking = is31fl319x_brightness_set;
diff --git a/drivers/leds/leds-is31fl32xx.c b/drivers/leds/leds-is31fl32xx.c
index 279f52931a177..d21b333a17e8e 100644
--- a/drivers/leds/leds-is31fl32xx.c
+++ b/drivers/leds/leds-is31fl32xx.c
@@ -341,9 +341,6 @@ static int is31fl32xx_parse_child_dt(const struct device *dev,
}
led_data->channel = reg;

- of_property_read_string(child, "linux,default-trigger",
- &cdev->default_trigger);
-
cdev->brightness_set_blocking = is31fl32xx_brightness_set;

return 0;
diff --git a/drivers/leds/leds-lm3532.c b/drivers/leds/leds-lm3532.c
index 3670cc64eee7b..610168dc7ad77 100644
--- a/drivers/leds/leds-lm3532.c
+++ b/drivers/leds/leds-lm3532.c
@@ -643,9 +643,6 @@ static int lm3532_parse_node(struct lm3532_data *priv)
goto child_out;
}

- fwnode_property_read_string(child, "linux,default-trigger",
- &led->led_dev.default_trigger);
-
ret = fwnode_property_read_string(child, "label", &name);
if (ret)
snprintf(led->label, sizeof(led->label),
diff --git a/drivers/leds/leds-lm36274.c b/drivers/leds/leds-lm36274.c
index b61c97ed26603..b49b85207fd8a 100644
--- a/drivers/leds/leds-lm36274.c
+++ b/drivers/leds/leds-lm36274.c
@@ -97,9 +97,6 @@ static int lm36274_parse_dt(struct lm36274 *chip,
goto err;
}

- fwnode_property_read_string(child, "linux,default-trigger",
- &chip->led_dev.default_trigger);
-
return 0;
err:
fwnode_handle_put(child);
diff --git a/drivers/leds/leds-lm3692x.c b/drivers/leds/leds-lm3692x.c
index ba535ee8fd252..27327bf6ea025 100644
--- a/drivers/leds/leds-lm3692x.c
+++ b/drivers/leds/leds-lm3692x.c
@@ -433,9 +433,6 @@ static int lm3692x_probe_dt(struct lm3692x_led *led)
return -ENODEV;
}

- fwnode_property_read_string(child, "linux,default-trigger",
- &led->led_dev.default_trigger);
-
ret = fwnode_property_read_u32(child, "reg", &led->led_enable);
if (ret) {
dev_err(&led->client->dev, "reg DT property missing\n");
diff --git a/drivers/leds/leds-lm3697.c b/drivers/leds/leds-lm3697.c
index 0c5c29730c407..50338ae0b7857 100644
--- a/drivers/leds/leds-lm3697.c
+++ b/drivers/leds/leds-lm3697.c
@@ -268,9 +268,6 @@ static int lm3697_probe_dt(struct lm3697 *priv)
if (ret)
dev_warn(dev, "runtime-ramp properties missing\n");

- fwnode_property_read_string(child, "linux,default-trigger",
- &led->led_dev.default_trigger);
-
init_data.fwnode = child;
init_data.devicename = priv->client->name;
/* for backwards compatibility if `label` is not present */
diff --git a/drivers/leds/leds-lp8860.c b/drivers/leds/leds-lp8860.c
index b69ed81d52ab4..f9b8abaac6b73 100644
--- a/drivers/leds/leds-lp8860.c
+++ b/drivers/leds/leds-lp8860.c
@@ -392,10 +392,6 @@ static int lp8860_probe(struct i2c_client *client,
if (!child_node)
return -EINVAL;

- led->led_dev.default_trigger = of_get_property(child_node,
- "linux,default-trigger",
- NULL);
-
led->enable_gpio = devm_gpiod_get_optional(&client->dev,
"enable", GPIOD_OUT_LOW);
if (IS_ERR(led->enable_gpio)) {
diff --git a/drivers/leds/leds-lt3593.c b/drivers/leds/leds-lt3593.c
index 061f02e3995ae..68e06434ac087 100644
--- a/drivers/leds/leds-lt3593.c
+++ b/drivers/leds/leds-lt3593.c
@@ -86,9 +86,6 @@ static int lt3593_led_probe(struct platform_device *pdev)

child = device_get_next_child_node(dev, NULL);

- 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, "on"))
state = LEDS_GPIO_DEFSTATE_ON;
diff --git a/drivers/leds/leds-max77650.c b/drivers/leds/leds-max77650.c
index bed620fc1b82e..169686a205000 100644
--- a/drivers/leds/leds-max77650.c
+++ b/drivers/leds/leds-max77650.c
@@ -100,9 +100,6 @@ static int max77650_led_probe(struct platform_device *pdev)
led->cdev.brightness_set_blocking = max77650_led_brightness_set;
led->cdev.max_brightness = MAX77650_LED_MAX_BRIGHTNESS;

- fwnode_property_read_string(child, "linux,default-trigger",
- &led->cdev.default_trigger);
-
init_data.fwnode = child;
init_data.devicename = "max77650";
/* for backwards compatibility if `label` is not present */
diff --git a/drivers/leds/leds-mt6323.c b/drivers/leds/leds-mt6323.c
index 5119dcc0aef24..b46661b4c36b2 100644
--- a/drivers/leds/leds-mt6323.c
+++ b/drivers/leds/leds-mt6323.c
@@ -342,10 +342,6 @@ static int mt6323_led_set_dt_default(struct led_classdev *cdev,
const char *state;
int ret = 0;

- led->cdev.default_trigger = of_get_property(np,
- "linux,default-trigger",
- NULL);
-
state = of_get_property(np, "default-state", NULL);
if (state) {
if (!strcmp(state, "keep")) {
diff --git a/drivers/leds/leds-ns2.c b/drivers/leds/leds-ns2.c
index b021e94d512c9..d033c4e08d45b 100644
--- a/drivers/leds/leds-ns2.c
+++ b/drivers/leds/leds-ns2.c
@@ -189,9 +189,6 @@ static int ns2_led_register(struct device *dev, struct device_node *np,
if (IS_ERR(led->slow))
return PTR_ERR(led->slow);

- of_property_read_string(np, "linux,default-trigger",
- &led->cdev.default_trigger);
-
ret = of_property_count_u32_elems(np, "modes-map");
if (ret < 0 || ret % 3) {
dev_err(dev, "Missing or malformed modes-map for %pOF\n", np);
diff --git a/drivers/leds/leds-pm8058.c b/drivers/leds/leds-pm8058.c
index 80db7e2de420c..bcb0a214f6eff 100644
--- a/drivers/leds/leds-pm8058.c
+++ b/drivers/leds/leds-pm8058.c
@@ -117,8 +117,6 @@ static int pm8058_led_probe(struct platform_device *pdev)
return -EINVAL;
}

- led->cdev.default_trigger =
- of_get_property(np, "linux,default-trigger", NULL);
led->cdev.brightness_set = pm8058_led_set;
led->cdev.brightness_get = pm8058_led_get;
if (led->ledtype == PM8058_LED_TYPE_COMMON)
diff --git a/drivers/leds/leds-tlc591xx.c b/drivers/leds/leds-tlc591xx.c
index 5e84a0c7aacbd..f24271337bd84 100644
--- a/drivers/leds/leds-tlc591xx.c
+++ b/drivers/leds/leds-tlc591xx.c
@@ -199,9 +199,6 @@ tlc591xx_probe(struct i2c_client *client,
led = &priv->leds[reg];

led->active = true;
- led->ldev.default_trigger =
- of_get_property(child, "linux,default-trigger", NULL);
-
led->priv = priv;
led->led_no = reg;
led->ldev.brightness_set_blocking = tlc591xx_brightness_set;
diff --git a/drivers/leds/leds-turris-omnia.c b/drivers/leds/leds-turris-omnia.c
index c276969137d7f..ad941dd1484fa 100644
--- a/drivers/leds/leds-turris-omnia.c
+++ b/drivers/leds/leds-turris-omnia.c
@@ -121,8 +121,6 @@ static int omnia_led_register(struct i2c_client *client, struct omnia_led *led,
cdev->max_brightness = 255;
cdev->brightness_set_blocking = omnia_led_brightness_set_blocking;

- of_property_read_string(np, "linux,default-trigger", &cdev->default_trigger);
-
/* put the LED into software mode */
ret = i2c_smbus_write_byte_data(client, CMD_LED_MODE,
CMD_LED_MODE_LED(led->reg) |
--
2.26.2