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SubjectRe: [PATCH v2 5/6] dt-bindings: add Sharp LQ123P1JX31 panel binding
Rob,

On Fri, Jun 10, 2016 at 6:42 AM, Rob Herring <robh@kernel.org> wrote:
> On Wed, Jun 08, 2016 at 07:52:45PM +0800, Yakir Yang wrote:
>> The Sharp LQ123P1JX31 is an 12.3" 2400x1600 TFT-LCD panel
>> connected using eDP interfaces.
>>
>> Signed-off-by: Yakir Yang <ykk@rock-chips.com>
>> ---
>> Changes in v2:
>> - Add dt-bindings of Sharp LQ123P1JX31 panel in v2
>>
>> .../devicetree/bindings/display/panel/sharp,lq123p1jx31.txt | 7 +++++++
>> 1 file changed, 7 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/display/panel/sharp,lq123p1jx31.txt
>>
>> diff --git a/Documentation/devicetree/bindings/display/panel/sharp,lq123p1jx31.txt b/Documentation/devicetree/bindings/display/panel/sharp,lq123p1jx31.txt
>> new file mode 100644
>> index 0000000..81938c0
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/display/panel/sharp,lq123p1jx31.txt
>> @@ -0,0 +1,7 @@
>> +Sharp 12.3" (2400x1600 pixels) TFT LCD panel
>> +
>> +Required properties:
>> +- compatible: should be "sharp,lq123p1jx31,"
> ^
> Need to drop the comma.

Thanks for catching!

> No regulators or resets or pwms?

Could be more explicit I guess, but Yakir does say:

> This binding is compatible with the simple-panel binding, which is specified
> in simple-panel.txt in this directory.

In that document it shows:

Required properties:
- power-supply: regulator to provide the supply voltage

Optional properties:
- ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
- enable-gpios: GPIO pin to enable or disable the panel
- backlight: phandle of the backlight device attached to the panel


In general Yakir's bindings document match a huge chunk of the current
existing bindings. Do this:
cd Documentation/devicetree/bindings/display/panel
grep -C20 "This binding is compatible with the simple-panel" *

You'll find a huge chunk of files which are rather formulaic. It
might make sense to just have one file and a list of panels which are
simple panels?


-Doug

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