Re: [PATCH v3 1/2] dt-bindings: display: Add Sharp LQ150X1LG11 panel binding

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On 2016-10-03 20:46, Rob Herring wrote:
> On Tue, Sep 27, 2016 at 12:27:11AM +0200, Peter Rosin wrote:
>> The Sharp 15" LQ150X1LG11 panel is an XGA TFT LCD panel.
>>
>> Signed-off-by: Peter Rosin <peda@xxxxxxxxxx>
>> ---
>>  .../bindings/display/panel/sharp,lq150x1lg11.txt   | 36 ++++++++++++++++++++++
>>  1 file changed, 36 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/display/panel/sharp,lq150x1lg11.txt
>>
>> diff --git a/Documentation/devicetree/bindings/display/panel/sharp,lq150x1lg11.txt b/Documentation/devicetree/bindings/display/panel/sharp,lq150x1lg11.txt
>> new file mode 100644
>> index 000000000000..715ff7e332f2
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/display/panel/sharp,lq150x1lg11.txt
>> @@ -0,0 +1,36 @@
>> +Sharp 15" LQ150X1LG11 XGA TFT LCD panel
>> +
>> +Required properties:
>> +- compatible: should be "sharp,lq150x1lg11"
>> +- power-supply: regulator to provide the VCC supply voltage (3.3 volts)
> 
> Should be named according to the input, so vcc-supply.

Right, I wanted to do that, but the simple-panel bindings has power-supply
as required and I desperately wanted to be compatible in order to make use
of the simple-panel driver. That driver does require this entry, so I do
not see any way around it. Any advice for this situation?

>> +
>> +Optional properties:
>> +- backlight: phandle of the backlight device
>> +- rlud-gpios: a single GPIO for the RL/UD (rotate 180 degrees) pin.
>> +- lvds-gpios: a single GPIO for the SELLVDS pin.
> 
> Why not sellvds-gpios?

I'll change that in v4.
 
>> +
>> +If lrud-gpios and/or ldvs-gpios are not specified, the RL/UD and/or SELLVDS
> 
> typos...

Good thing you added the plural, I found s/lrud/rlud/ and s/ldvs/lvds/
Nice catch btw, thanks!

>> +pins are assumed to be handled appropriately by the hardware.
>> +
>> +Example:
>> +
>> +	backlight: backlight {
>> +		compatible = "pwm-backlight";
>> +		pwms = <&pwm 0 100000>;                      /* VBR */
>> +
>> +		brightness-levels = <0 20 40 60 80 100>;
>> +		default-brightness-level = <2>;
>> +
>> +		power-supply = <&vdd_12v_reg>;               /* VDD */
>> +		enable-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;  /* XSTABY */
>> +	};
>> +
>> +	panel {
>> +		compatible = "sharp,lq150x1lg11";
>> +
>> +		power-supply = <&vcc_3v3_reg>;               /* VCC */
>> +
>> +		backlight = <&backlight>;
>> +		rlud-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;    /* RL/UD */
>> +		lvds-gpios = <&gpio 18 GPIO_ACTIVE_HIGH>;    /* SELLVDS */
>> +	};
>> -- 
>> 2.1.4
>>
>> --
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