linux-hardening - Re: [PATCH 2/2] arm64: dts: qcom: sm8150: Add support for Xiaomi Redmi K20 Pro

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Message-ID: <d99b03f4-ae44-4b7d-b4d0-45e2c3058db0@oss.qualcomm.com>
Date: Wed, 29 Oct 2025 10:06:50 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Piyush Raj Chouhan <pc1598@...nlining.org>, linux-arm-msm@...r.kernel.org
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org, andersson@...nel.org,
        konradybcio@...nel.org, robh@...nel.org, krzk+dt@...nel.org,
        conor+dt@...nel.org, tony.luck@...el.com, gpiccoli@...lia.com
Subject: Re: [PATCH 2/2] arm64: dts: qcom: sm8150: Add support for Xiaomi
 Redmi K20 Pro

On 10/28/25 5:13 PM, Piyush Raj Chouhan wrote:
> Hi, konrad 
> 
> 
>>> +
>>> +&i2c19 {
>>> +	/* goodix,gt9886 @5d  */
>>
>> I see there's driver support for the GT98*97* - is there a chance you can
>> reuse some of it?
>>
> 
> I am currently testing touch on gtx8 driver which currently is in lkml, once its merged we could add support for it.
> 
> https://lore.kernel.org/linux-input/20250918-gtx8-v1-0-cba879c84775@mainlining.org

That's great!

[...]

>>> +	led@2 {
>>> +		reg = <2>;
>>> +		color = <LED_COLOR_ID_RED>;
>>> +		function = LED_FUNCTION_STATUS;
>>> +		function-enumerator = <0>;
>>> +	};
>>> +
>>> +	led@3 {
>>> +		reg = <3>;
>>> +		color = <LED_COLOR_ID_RED>;
>>> +		function = LED_FUNCTION_STATUS;
>>> +		function-enumerator = <1>;
>>> +	};
>>
>> Are there really two separate red LEDs?
> 
> Yes, it has popup camera with an LED on both side, i have verified functionality of both LEDs. 

OK, would you mind adding a label= entry with perhaps "Pop-up camera
front/back"?

Konrad