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| author | Bjorn Andersson <bjorn.andersson@sonymobile.com> | 2015-07-22 02:44:49 +0200 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2015-08-25 09:41:56 +0200 |
| commit | 7ddbc2423c3301280b883bbb04b998203f30312c (patch) | |
| tree | ae41f93655fd5a8bdd920363479934653d06cb51 /Documentation/devicetree/bindings/video | |
| parent | backlight: lp855x: Use private data for regulator control (diff) | |
| download | linux-7ddbc2423c3301280b883bbb04b998203f30312c.tar.xz linux-7ddbc2423c3301280b883bbb04b998203f30312c.zip | |
backlight: pm8941-wled: Move PM8941 WLED driver to backlight
The Qualcomm PM8941 WLED block is used for backlight and should therefor
be in the backlight framework and not in the LED framework. This moves
the driver and adapts to the backlight api instead.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Tested-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/video')
| -rw-r--r-- | Documentation/devicetree/bindings/video/backlight/pm8941-wled.txt | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/video/backlight/pm8941-wled.txt b/Documentation/devicetree/bindings/video/backlight/pm8941-wled.txt new file mode 100644 index 000000000000..424f8444a6cd --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/pm8941-wled.txt @@ -0,0 +1,40 @@ +Binding for Qualcomm PM8941 WLED driver + +Required properties: +- compatible: should be "qcom,pm8941-wled" +- reg: slave address + +Optional properties: +- label: The name of the backlight device +- qcom,cs-out: bool; enable current sink output +- qcom,cabc: bool; enable content adaptive backlight control +- qcom,ext-gen: bool; use externally generated modulator signal to dim +- qcom,current-limit: mA; per-string current limit; value from 0 to 25 + default: 20mA +- qcom,current-boost-limit: mA; boost current limit; one of: + 105, 385, 525, 805, 980, 1260, 1400, 1680 + default: 805mA +- qcom,switching-freq: kHz; switching frequency; one of: + 600, 640, 685, 738, 800, 872, 960, 1066, 1200, 1371, + 1600, 1920, 2400, 3200, 4800, 9600, + default: 1600kHz +- qcom,ovp: V; Over-voltage protection limit; one of: + 27, 29, 32, 35 + default: 29V +- qcom,num-strings: #; number of led strings attached; value from 1 to 3 + default: 2 + +Example: + +pm8941-wled@d800 { + compatible = "qcom,pm8941-wled"; + reg = <0xd800>; + label = "backlight"; + + qcom,cs-out; + qcom,current-limit = <20>; + qcom,current-boost-limit = <805>; + qcom,switching-freq = <1600>; + qcom,ovp = <29>; + qcom,num-strings = <2>; +}; |