mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
9a6b1f608a
This adds the device tree bindings for the PM8058 LEDs. Cc: devicetree@vger.kernel.org Cc: linux-arm-msm@vger.kernel.org Cc: Andy Gross <andy.gross@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
68 lines
2.0 KiB
Plaintext
68 lines
2.0 KiB
Plaintext
Qualcomm PM8058 LED driver
|
|
|
|
The Qualcomm PM8058 is a multi-functional device which contains
|
|
an LED driver block for up to six LEDs: three normal LEDs, two
|
|
"flash" LEDs and one "keypad backlight" LED. The names are
|
|
quoted because sometimes these LED drivers are used for wildly
|
|
different things than flash or keypad backlight: their names
|
|
are more of a suggestion than a hard-wired usecase.
|
|
|
|
Hardware-wise the different LEDs support slightly different
|
|
output currents. The "flash" LEDs do not need to charge nor
|
|
do they support external triggers. They are just powerful LED
|
|
drivers.
|
|
|
|
The LEDs appear as children to the PM8058 device, with the
|
|
proper compatible string. For the PM8058 bindings see:
|
|
mfd/qcom-pm8xxx.txt.
|
|
|
|
Each LED is represented as a sub-node of the syscon device. Each
|
|
node's name represents the name of the corresponding LED.
|
|
|
|
LED sub-node properties:
|
|
|
|
Required properties:
|
|
- compatible: one of
|
|
"qcom,pm8058-led" (for the normal LEDs at 0x131, 0x132 and 0x133)
|
|
"qcom,pm8058-keypad-led" (for the "keypad" LED at 0x48)
|
|
"qcom,pm8058-flash-led" (for the "flash" LEDs at 0x49 and 0xFB)
|
|
|
|
Optional properties:
|
|
- label: see Documentation/devicetree/bindings/leds/common.txt
|
|
- default-state: see Documentation/devicetree/bindings/leds/common.txt
|
|
- linux,default-trigger: see Documentation/devicetree/bindings/leds/common.txt
|
|
|
|
Example:
|
|
|
|
qcom,ssbi@500000 {
|
|
pmicintc: pmic@0 {
|
|
compatible = "qcom,pm8058";
|
|
led@48 {
|
|
compatible = "qcom,pm8058-keypad-led";
|
|
reg = <0x48>;
|
|
label = "pm8050:white:keypad";
|
|
default-state = "off";
|
|
};
|
|
led@131 {
|
|
compatible = "qcom,pm8058-led";
|
|
reg = <0x131>;
|
|
label = "pm8058:red";
|
|
default-state = "off";
|
|
};
|
|
led@132 {
|
|
compatible = "qcom,pm8058-led";
|
|
reg = <0x132>;
|
|
label = "pm8058:yellow";
|
|
default-state = "off";
|
|
linux,default-trigger = "mmc0";
|
|
};
|
|
led@133 {
|
|
compatible = "qcom,pm8058-led";
|
|
reg = <0x133>;
|
|
label = "pm8058:green";
|
|
default-state = "on";
|
|
linux,default-trigger = "heartbeat";
|
|
};
|
|
};
|
|
};
|