linux-kernel - Re: [PATCH v2 4/7] arm64: dts: qcom: sdm845-oneplus: Describe TE gpio

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Message-ID: <2ab48275-37bd-4a04-bce3-769aa635451d@ixit.cz>
Date: Thu, 9 Oct 2025 15:38:45 +0200
From: David Heidelberg <david@...t.cz>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
 Neil Armstrong <neil.armstrong@...aro.org>,
 Jessica Zhang <jessica.zhang@....qualcomm.com>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Thierry Reding
 <thierry.reding@...il.com>, Sam Ravnborg <sam@...nborg.org>,
 Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konradybcio@...nel.org>,
 Casey Connolly <casey.connolly@...aro.org>
Cc: dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
 phone-devel@...r.kernel.org
Subject: Re: [PATCH v2 4/7] arm64: dts: qcom: sdm845-oneplus: Describe TE gpio

On 09/10/2025 14:54, Konrad Dybcio wrote:
> On 10/8/25 4:05 PM, David Heidelberg via B4 Relay wrote:
>> From: David Heidelberg <david@...t.cz>
>>
>> Describe panel Tearing Effect (TE) GPIO line.
>>
>> Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
>> Signed-off-by: David Heidelberg <david@...t.cz>
>> ---
>>   arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
>> index 1cf03047dd7ae..75989b377f8bc 100644
>> --- a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
>> @@ -460,6 +460,7 @@ display_panel: panel@0 {
>>   		vci-supply = <&panel_vci_3v3>;
>>   		poc-supply = <&panel_vddi_poc_1p8>;
>>   
>> +		te-gpios = <&tlmm 30 GPIO_ACTIVE_HIGH>;
> 
> Wait, I just noticed nothing consumes this..

It's well defined in the
display/panel/panel-common.yaml and the device-tree should be 
independent on the driver, so that seems perfectly fine.

sdm845-samsung-starqltechn.dts have it exactly same way.

David

> 
> Konrad

-- 
David Heidelberg