[PATCH v4 2/9] led: status_led: add support for white LED colour

[Christian Marangi <ansuelsmth@gmail.com>]

Add support for white LED colour present on many devices.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 cmd/legacy_led.c        |  6 ++++++
 common/board_f.c        |  2 ++
 drivers/led/Kconfig     | 14 ++++++++++++++
 drivers/misc/gpio_led.c | 12 ++++++++++++
 include/status_led.h    |  4 ++++
 5 files changed, 38 insertions(+)

diff --git a/cmd/legacy_led.c b/cmd/legacy_led.c
index 50de7e89d8f..18f0c3472c4 100644
--- a/cmd/legacy_led.c
+++ b/cmd/legacy_led.c
@@ -56,6 +56,9 @@ static const led_tbl_t led_commands[] = {
 #endif
 #ifdef CONFIG_LED_STATUS_BLUE
 	{ "blue", CONFIG_LED_STATUS_BLUE, blue_led_off, blue_led_on, NULL },
+#endif
+#ifdef CONFIG_LED_STATUS_WHITE
+	{ "white", CONFIG_LED_STATUS_WHITE, white_led_off, white_led_on, NULL },
 #endif
 	{ NULL, 0, NULL, NULL, NULL }
 };
@@ -179,6 +182,9 @@ U_BOOT_CMD(
 #endif
 #ifdef CONFIG_LED_STATUS_BLUE
 	"blue|"
+#endif
+#ifdef CONFIG_LED_STATUS_WHITE
+	"white|"
 #endif
 	"all] [on|off|toggle|blink] [blink-freq in ms]",
 	"[led_name] [on|off|toggle|blink] sets or clears led(s)"
diff --git a/common/board_f.c b/common/board_f.c
index 212ffb3090b..af79ed9c776 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -72,6 +72,8 @@ __weak void yellow_led_on(void) {}
 __weak void yellow_led_off(void) {}
 __weak void blue_led_on(void) {}
 __weak void blue_led_off(void) {}
+__weak void white_led_on(void) {}
+__weak void white_led_off(void) {}
 
 /*
  * Why is gd allocated a register? Prior to reloc it might be better to
diff --git a/drivers/led/Kconfig b/drivers/led/Kconfig
index 9837960198d..6c4f02d71f2 100644
--- a/drivers/led/Kconfig
+++ b/drivers/led/Kconfig
@@ -415,6 +415,20 @@ config LED_STATUS_GREEN
 
 endif # LED_STATUS_GREEN_ENABLE
 
+config LED_STATUS_WHITE_ENABLE
+	bool "Enable white LED"
+	help
+	  Enable white status LED.
+
+if LED_STATUS_WHITE_ENABLE
+
+config LED_STATUS_WHITE
+	int "White LED identification"
+	help
+	  Valid enabled LED device number (0-5).
+
+endif # LED_STATUS_WHITE_ENABLE
+
 config LED_STATUS_CMD
 	bool "Enable status LED commands"
 
diff --git a/drivers/misc/gpio_led.c b/drivers/misc/gpio_led.c
index 6626b137087..dfc9b009570 100644
--- a/drivers/misc/gpio_led.c
+++ b/drivers/misc/gpio_led.c
@@ -111,3 +111,15 @@ void blue_led_off(void)
 	__led_set(GPIO_BIT(CONFIG_LED_STATUS_BLUE), CONFIG_LED_STATUS_OFF);
 }
 #endif
+
+#ifdef CONFIG_LED_STATUS_WHITE
+void white_led_on(void)
+{
+	__led_set(GPIO_BIT(CONFIG_LED_STATUS_WHITE), CONFIG_LED_STATUS_ON);
+}
+
+void white_led_off(void)
+{
+	__led_set(GPIO_BIT(CONFIG_LED_STATUS_WHITE), CONFIG_LED_STATUS_OFF);
+}
+#endif
diff --git a/include/status_led.h b/include/status_led.h
index 6707ab1d29d..5ce4522b029 100644
--- a/include/status_led.h
+++ b/include/status_led.h
@@ -87,6 +87,8 @@ void yellow_led_on(void);
 void yellow_led_off(void);
 void blue_led_on(void);
 void blue_led_off(void);
+void white_led_on(void);
+void white_led_off(void);
 #else
 	.extern LED_init
 	.extern red_led_on
@@ -97,6 +99,8 @@ void blue_led_off(void);
 	.extern green_led_off
 	.extern blue_led_on
 	.extern blue_led_off
+	.extern white_led_on
+	.extern white_led_off
 #endif
 
 #endif	/* _STATUS_LED_H_	*/
-- 
2.43.0