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Subject[PATCH 05/25] dt-bindings: leds: Add function and color properties
Date
Introduce dedicated properties for conveying information about
LED function and color. Mark old "label" property as deprecated.

Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: Baolin Wang <baolin.wang@linaro.org>
Cc: Daniel Mack <daniel@zonque.org>
Cc: Dan Murphy <dmurphy@ti.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Oleh Kravchenko <oleg@kaa.org.ua>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Simon Shields <simon@lineageos.org>
---
Documentation/devicetree/bindings/leds/common.txt | 55 +++++++++++++++++++----
1 file changed, 47 insertions(+), 8 deletions(-)

diff --git a/Documentation/devicetree/bindings/leds/common.txt b/Documentation/devicetree/bindings/leds/common.txt
index aa1399814a2a..3402b0e1cec9 100644
--- a/Documentation/devicetree/bindings/leds/common.txt
+++ b/Documentation/devicetree/bindings/leds/common.txt
@@ -10,14 +10,23 @@ can influence the way of the LED device initialization, the LED components
have to be tightly coupled with the LED device binding. They are represented
by child nodes of the parent LED device binding.

+
Optional properties for child nodes:
- led-sources : List of device current outputs the LED is connected to. The
outputs are identified by the numbers that must be defined
in the LED device binding documentation.
+- function: LED functon. Use one of the LED_FUNCTION_* prefixed definitions
+ from the header include/dt-bindings/leds/common.h.
+ If there is no matching LED_FUNCTION available, add a new one.
+- color : Color of the LED. Use one of the LED_COLOR_NAME_* prefixed definitions
+ from the header include/dt-bindings/leds/common.h.
+ If there is no matching LED_COLOR_NAME available, add a new one.
+
- label : The label for this LED. If omitted, the label is taken from the node
name (excluding the unit address). It has to uniquely identify
a device, i.e. no other LED class device can be assigned the same
- label.
+ label. This property is deprecated - use 'function' and 'color'
+ properties instead.

- default-state : The initial state of the LED. Valid values are "on", "off",
and "keep". If the LED is already on or off and the default-state property is
@@ -87,29 +96,59 @@ Required properties for trigger source:

* Examples

-gpio-leds {
+#include <dt-bindings/leds/common.h>
+
+led-controller@0 {
compatible = "gpio-leds";

- system-status {
- label = "Status";
+ led0 {
+ function = LED_FUNCTION_STATUS;
linux,default-trigger = "heartbeat";
gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
};

- usb {
+ led1 {
+ function = LED_FUNCTION_USB;
gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
trigger-sources = <&ohci_port1>, <&ehci_port1>;
};
};

-max77693-led {
+led-controller@0 {
compatible = "maxim,max77693-led";

- camera-flash {
- label = "Flash";
+ led {
+ function = LED_FUNCTION_FLASH;
+ color = LED_COLOR_NAME_WHITE;
led-sources = <0>, <1>;
led-max-microamp = <50000>;
flash-max-microamp = <320000>;
flash-max-timeout-us = <500000>;
};
};
+
+led-controller@30 {
+ compatible = "panasonic,an30259a";
+ reg = <0x30>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led@1 {
+ reg = <1>;
+ linux,default-trigger = "heartbeat";
+ function = LED_FUNCTION_INDICATOR;
+ color = LED_COLOR_NAME_RED;
+ };
+
+ led@2 {
+ reg = <2>;
+ function = LED_FUNCTION_INDICATOR;
+ color = LED_COLOR_NAME_GREEN;
+ };
+
+ led@3 {
+ reg = <3>;
+ function = LED_FUNCTION_INDICATOR;
+ color = LED_COLOR_NAME_BLUE;
+ };
+};
--
2.11.0
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