linux-kernel - Re: [PATCH] arm64: dts: qcom: qcs6490-rb3gen2: Use 'edp

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Message-ID: <3ddb78d0-5afd-4ba7-a0a2-bfd5ae3696c4@quicinc.com>
Date: Thu, 6 Nov 2025 13:59:01 +0530
From: Amit Singh <quic_amitsi@...cinc.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
CC: <andersson@...nel.org>, <konradybcio@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <quic_riteshk@...cinc.com>,
        <quic_rajeevny@...cinc.com>, <quic_vproddut@...cinc.com>
Subject: Re: [PATCH] arm64: dts: qcom: qcs6490-rb3gen2: Use 'edp_hot' function
 for hpd gpio



On 11/1/2025 2:48 PM, Dmitry Baryshkov wrote:
> On Fri, Oct 31, 2025 at 02:27:39PM +0530, Amit Singh wrote:
>> Currently, hpd gpio is configured as a general-purpose gpio, which does
> 
> HPD, GPIO

Sure, will update in next version.

> 
>> not support interrupt generation.
> 
> This is not true. GPIOs support interrupt generation.

Will update the commit message.

> 
>> This change removes the generic
> 
> Documentation/process/submitting-patches.rst, see the paragraph around
> "This patch" words.

Sure, will follow the guidelines. 

> 
>> hpd-gpios property and assigns the edp_hot function to the pin,
>> enabling proper irq support.
> 
> What for?

I'll update more details in the commit message.

> 
>>
>> Fixes: 756efb7cb7293 ("arm64: dts: qcom: qcs6490-rb3gen2: Add DP output")
>> Signed-off-by: Amit Singh <quic_amitsi@...cinc.com>
>> ---
>>  arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 3 ---
>>  1 file changed, 3 deletions(-)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
>> index c146161e4bb4..caa0b6784df3 100644
>> --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
>> +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
>> @@ -49,8 +49,6 @@ dp-connector {
>>  		label = "DP";
>>  		type = "mini";
>>  
>> -		hpd-gpios = <&tlmm 60 GPIO_ACTIVE_HIGH>;
>> -
>>  		port {
>>  			dp_connector_in: endpoint {
>>  				remote-endpoint = <&mdss_edp_out>;
>> @@ -1420,7 +1418,6 @@ &wifi {
>>  /* PINCTRL - ADDITIONS TO NODES IN PARENT DEVICE TREE FILES */
>>  
>>  &edp_hot_plug_det {
>> -	function = "gpio";
>>  	bias-disable;
>>  };
>>  
>> -- 
>> 2.34.1
>>
>