linux-kernel - Re: [PATCH v2 1/2] dt-bindings: display: panel: panel-simple: Add compatible property for waveshare 7inch touchscreen panel

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Date: Wed, 10 Jan 2024 10:05:57 +0100
From: neil.armstrong@...aro.org
To: Conor Dooley <conor@...nel.org>,
 Shengyang Chen <shengyang.chen@...rfivetech.com>
Cc: devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org,
 quic_jesszhan@...cinc.com, sam@...nborg.org, airlied@...il.com,
 daniel@...ll.ch, maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
 tzimmermann@...e.de, robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
 conor+dt@...nel.org, wahrenst@....net, dave.stevenson@...pberrypi.com,
 thierry.reding@...il.com, changhuang.liang@...rfivetech.com,
 keith.zhao@...rfivetech.com, jack.zhu@...rfivetech.com,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] dt-bindings: display: panel: panel-simple: Add
 compatible property for waveshare 7inch touchscreen panel

On 09/01/2024 17:32, Conor Dooley wrote:
> On Tue, Jan 09, 2024 at 03:09:48PM +0800, Shengyang Chen wrote:
>> The waveshare 7" 800x480 panel is a clone of Raspberry Pi 7" 800x480 panel
>> It can be drived by Raspberry Pi panel's process but it needs different
>> timing from Raspberry Pi panel. Add compatible property for it.
>>
>> Signed-off-by: Keith Zhao <keith.zhao@...rfivetech.com>
>> Signed-off-by: Shengyang Chen <shengyang.chen@...rfivetech.com>
>> ---
>>   .../devicetree/bindings/display/panel/panel-simple.yaml         | 2 ++
>>   1 file changed, 2 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
>> index 11422af3477e..02f6b1b2ddc9 100644
>> --- a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
>> +++ b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
>> @@ -335,6 +335,8 @@ properties:
>>         - vivax,tpc9150-panel
>>           # VXT 800x480 color TFT LCD panel
>>         - vxt,vl050-8048nt-c01
>> +        # Waveshare 7" (800x480) touchscreen LCD panel
>> +      - waveshare,7inch-touchscreen
> 
> Is "7inch-touchscreen" really a specific enough identifier for this
> device?

Waveshare has very precise SKUs, this should be something like waveshare,7inch-dsi-sku19885 perhaps

Neil

> 
>>           # Winstar Display Corporation 3.5" QVGA (320x240) TFT LCD panel
>>         - winstar,wf35ltiacd
>>           # Yes Optoelectronics YTC700TLAG-05-201C 7" TFT LCD panel
>> -- 
>> 2.17.1
>>