linux-kernel - Re: [PATCH RESEND v3] arm64: dts: qcom: qcs6490-idp: Add definition for three LEDs.

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Date: Thu, 11 Jan 2024 09:58:33 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Luca Weiss <luca.weiss@...rphone.com>, quic_huliu@...cinc.com,
 Andy Gross <agross@...nel.org>, Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konrad.dybcio@...aro.org>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND v3] arm64: dts: qcom: qcs6490-idp: Add definition
 for three LEDs.

On 11/01/2024 09:47, Luca Weiss wrote:
> On Thu Jan 11, 2024 at 3:52 AM CET, Hui Liu via B4 Relay wrote:
>> From: Hui Liu <quic_huliu@...cinc.com>
>>
>> Add definition for three LEDs to make sure they can
>> be enabled base on QCOM LPG LED driver.
>>
>> Signed-off-by: Hui Liu <quic_huliu@...cinc.com>
>> ---
>> Changes in v3:
>> - Rephrased commit text and updated the nodes to qcm6490-idp board file.
>> - Link to v2: https://lore.kernel.org/all/20231110-qcom_leds-v2-1-3cad1fbbc65a@quicinc.com/
>>
>> Changes in v2:
>> - Rephrased commit text and updated the nodes to board file.
>> - Link to v1: https://lore.kernel.org/r/20231108-qcom_leds-v1-1-c3e1c8572cb0@quicinc.com
>> ---
>>  arch/arm64/boot/dts/qcom/qcm6490-idp.dts | 25 +++++++++++++++++++++++++
>>  1 file changed, 25 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
>> index 37c91fdf3ab9..f801144a1556 100644
>> --- a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
>> +++ b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
>> @@ -5,6 +5,7 @@
>>  
>>  /dts-v1/;
>>  
>> +#include <dt-bindings/leds/common.h>
>>  #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
>>  #include "sc7280.dtsi"
>>  #include "pm7325.dtsi"
>> @@ -414,6 +415,30 @@ vreg_bob_3p296: bob {
>>  	};
>>  };
>>  
>> +&pm8350c_pwm {
>> +	#address-cells = <1>;
>> +	#size-cells = <0>;
>> +	status = "okay";
>> +
>> +	led@1 {
>> +		reg = <1>;
> 
> Hi Hui Liu,
> 
>> +		color = <LED_COLOR_ID_RED>;
>> +		label = "red";
> 
> Please remove the deprecated "label" property. Since you already have
> "color" set you only need to add "function". On phones for the
> notification LED we usually use "function = LED_FUNCTION_STATUS;"
> 
> Also depends on what your hardware looks like, if it's 3 separate LEDs
> then with label replaced it would be okay.
> If the 3 LEDs are in one spot (so you can mix the colors with it), then
> please make it a RGB multi-led like e.g. in sm8550-qrd.dts.
> 

I already asked for this and it was ignored:

https://lore.kernel.org/all/6aa67adb-a4d5-40da-a261-c90050ac04b2@linaro.org/

Let's engage three different community reviewers to repeat the same, one
feedback. This is just disrespectful to our time.

Best regards,
Krzysztof