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| author | Maxime Ripard <maxime.ripard@free-electrons.com> | 2017-12-21 14:02:27 +0300 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2018-01-05 12:00:12 +0300 |
| commit | 2e7e2ebc68979d984c99c29be0e1af390a49b48c (patch) | |
| tree | 9b6c5fdab0ff7317b02d82d6e45066334c684d92 /Documentation | |
| parent | 2f0d7bb16e54ccaf6a7fac2fcc21e45287d94ec9 (diff) | |
| download | linux-2e7e2ebc68979d984c99c29be0e1af390a49b48c.tar.xz | |
dt-bindings: panel: lvds: Document power-supply property
The power-supply property is used by a vast majority of panels, including
panel-simple. Let's document it as a common property
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/0a6a3abcf1a6b7f0e66a81af8a44c5c0566ce06c.1513854122.git-series.maxime.ripard@free-electrons.com
Diffstat (limited to 'Documentation')
3 files changed, 12 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/display/panel/panel-common.txt b/Documentation/devicetree/bindings/display/panel/panel-common.txt index ec52c472c845..557fa765adcb 100644 --- a/Documentation/devicetree/bindings/display/panel/panel-common.txt +++ b/Documentation/devicetree/bindings/display/panel/panel-common.txt @@ -78,6 +78,16 @@ used for panels that implement compatible control signals. while active. Active high reset signals can be supported by inverting the GPIO specifier polarity flag. +Power +----- + +- power-supply: display panels require power to be supplied. While several + panels need more than one power supply with panel-specific constraints + governing the order and timings of the power supplies, in many cases a single + power supply is sufficient, either because the panel has a single power rail, + or because all its power rails can be driven by the same supply. In that case + the power-supply property specifies the supply powering the panel as a phandle + to a regulator. Backlight --------- diff --git a/Documentation/devicetree/bindings/display/panel/panel-lvds.txt b/Documentation/devicetree/bindings/display/panel/panel-lvds.txt index b938269f841e..250850a2150b 100644 --- a/Documentation/devicetree/bindings/display/panel/panel-lvds.txt +++ b/Documentation/devicetree/bindings/display/panel/panel-lvds.txt @@ -32,6 +32,7 @@ Optional properties: - label: See panel-common.txt. - gpios: See panel-common.txt. - backlight: See panel-common.txt. +- power-supply: See panel-common.txt. - data-mirror: If set, reverse the bit order described in the data mappings below on all data lanes, transmitting bits for slots 6 to 0 instead of 0 to 6. diff --git a/Documentation/devicetree/bindings/display/panel/simple-panel.txt b/Documentation/devicetree/bindings/display/panel/simple-panel.txt index 1341bbf4aa3d..16d8ff088b7d 100644 --- a/Documentation/devicetree/bindings/display/panel/simple-panel.txt +++ b/Documentation/devicetree/bindings/display/panel/simple-panel.txt @@ -1,7 +1,7 @@ Simple display panel Required properties: -- power-supply: regulator to provide the supply voltage +- power-supply: See panel-common.txt Optional properties: - ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing |