leds: lp8860: Update the dt parsing for LED labeling

Update the DT parsing for the label node so that
the label is retrieved from the device child as
opposed to being part of the parent.

This will align this driver with the LED
binding documentation

Documentation/devicetree/bindings/leds/common.txt

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>

1 files changed, 12 insertions, 11 deletions

diff --git a/drivers/leds/leds-lp8860.c b/drivers/leds/leds-lp8860.c
index f91a4fe25168..1ab5e19c3509 100644
--- a/drivers/leds/leds-lp8860.c
+++ b/drivers/leds/leds-lp8860.c
@@ -22,6 +22,7 @@
 #include <linux/of_gpio.h>
 #include <linux/gpio/consumer.h>
 #include <linux/slab.h>
+#include <uapi/linux/uleds.h>
 
 #define LP8860_DISP_CL1_BRT_MSB         0x00
 #define LP8860_DISP_CL1_BRT_LSB         0x01
@@ -86,8 +87,6 @@
 
 #define LP8860_CLEAR_FAULTS             0x01
 
-#define LP8860_DISP_LED_NAME            "display_cluster"
-
 /**
  * struct lp8860_led -
  * @lock - Lock for reading/writing the device
@@ -107,7 +106,7 @@ struct lp8860_led {
         struct regmap *eeprom_regmap;
         struct gpio_desc *enable_gpio;
         struct regulator *regulator;
-        const char *label;
+        char label[LED_MAX_NAME_SIZE];
 };
 
 struct lp8860_eeprom_reg {
@@ -387,19 +386,21 @@ static int lp8860_probe(struct i2c_client *client,
         int ret;
         struct lp8860_led *led;
         struct device_node *np = client->dev.of_node;
+        struct device_node *child_node;
+        const char *name;
 
         led = devm_kzalloc(&client->dev, sizeof(*led), GFP_KERNEL);
         if (!led)
                 return -ENOMEM;
 
-        led->label = LP8860_DISP_LED_NAME;
-
-        if (client->dev.of_node) {
-                ret = of_property_read_string(np, "label", &led->label);
-                if (ret) {
-                        dev_err(&client->dev, "Missing label in dt\n");
-                        return -EINVAL;
-                }
+        for_each_available_child_of_node(np, child_node) {
+                ret = of_property_read_string(child_node, "label", &name);
+                if (!ret)
+                        snprintf(led->label, sizeof(led->label), "%s:%s",
+                                 id->name, name);
+                else
+                        snprintf(led->label, sizeof(led->label),
+                                "%s::display_cluster", id->name);
         }
 
         led->enable_gpio = devm_gpiod_get_optional(&client->dev,