mirror of
https://github.com/torvalds/linux.git
synced 2024-12-28 13:51:44 +00:00
6234004ce4
This patch adds documentation for devicetree bindings for LED support on MT6323 PMIC. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
61 lines
1.6 KiB
Plaintext
61 lines
1.6 KiB
Plaintext
Device Tree Bindings for LED support on MT6323 PMIC
|
|
|
|
MT6323 LED controller is subfunction provided by MT6323 PMIC, so the LED
|
|
controllers are defined as the subnode of the function node provided by MT6323
|
|
PMIC controller that is being defined as one kind of Muti-Function Device (MFD)
|
|
using shared bus called PMIC wrapper for each subfunction to access remote
|
|
MT6323 PMIC hardware.
|
|
|
|
For MT6323 MFD bindings see:
|
|
Documentation/devicetree/bindings/mfd/mt6397.txt
|
|
For MediaTek PMIC wrapper bindings see:
|
|
Documentation/devicetree/bindings/soc/mediatek/pwrap.txt
|
|
|
|
Required properties:
|
|
- compatible : Must be "mediatek,mt6323-led"
|
|
- address-cells : Must be 1
|
|
- size-cells : Must be 0
|
|
|
|
Each led is represented as a child node of the mediatek,mt6323-led that
|
|
describes the initial behavior for each LED physically and currently only four
|
|
LED child nodes can be supported.
|
|
|
|
Required properties for the LED child node:
|
|
- reg : LED channel number (0..3)
|
|
|
|
Optional properties for the LED child node:
|
|
- label : See Documentation/devicetree/bindings/leds/common.txt
|
|
- linux,default-trigger : See Documentation/devicetree/bindings/leds/common.txt
|
|
- default-state: See Documentation/devicetree/bindings/leds/common.txt
|
|
|
|
Example:
|
|
|
|
mt6323: pmic {
|
|
compatible = "mediatek,mt6323";
|
|
|
|
...
|
|
|
|
mt6323led: leds {
|
|
compatible = "mediatek,mt6323-led";
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
led@0 {
|
|
reg = <0>;
|
|
label = "LED0";
|
|
linux,default-trigger = "timer";
|
|
default-state = "on";
|
|
};
|
|
led@1 {
|
|
reg = <1>;
|
|
label = "LED1";
|
|
default-state = "off";
|
|
};
|
|
led@2 {
|
|
reg = <2>;
|
|
label = "LED2";
|
|
default-state = "on";
|
|
};
|
|
};
|
|
};
|