linux-kernel - Re: [PATCH v5] arm64: dts: qcom: qcm6490-idp: Add definition for three LEDs

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Message-ID: <CAA8EJpq8exe6n3OQnreLCsV+BnZKcu24d==rEKup=+n28nnDHw@mail.gmail.com>
Date: Wed, 17 Jan 2024 05:41:06 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: hui liu <quic_huliu@...cinc.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, 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>, 
	linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, quic_fenglinw@...cinc.com
Subject: Re: [PATCH v5] arm64: dts: qcom: qcm6490-idp: Add definition for
 three LEDs

On Wed, 17 Jan 2024 at 05:02, hui liu <quic_huliu@...cinc.com> wrote:
>
>
>
> On 1/15/2024 6:26 PM, Krzysztof Kozlowski wrote:
> > On 15/01/2024 11:18, hui liu wrote:
> >>
> >>
> >> On 1/15/2024 5:56 PM, Dmitry Baryshkov wrote:
> >>> On Mon, 15 Jan 2024 at 11:48, Hui Liu via B4 Relay
> >>> <devnull+quic_huliu.quicinc.com@...nel.org> 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.
> >>>
> >>> The "function" property is still placed incorrectly. Posting the next
> >>> iteration before concluding the discussion on the previous one is not
> >>> the best idea.
> >> Do you mean I should update it as below? Seems there is no consumer to
> >> use the function config, do we need to add now?
> >
> > Paste the output of dtbs_check for your board (or CHECK_DTBS=y for your
> > Makefile target).
> I checked the dt-binding file of LPG LED, I will update the dts as
> below, if you think it's correct, I will push v6.

Is there any reason why you are defining three different LEDs instead
of multi-led with three components?

>
> +&pm8350c_pwm {
> +       #address-cells = <1>;
> +       #size-cells = <0>;
> +       status = "okay";
> +
> +       led@1 {
> +               reg = <1>;
> +               color = <LED_COLOR_ID_RED>;
> +               function = LED_FUNCTION_STATUS;
> +       };
> +
> +       led@2 {
> +               reg = <2>;
> +               color = <LED_COLOR_ID_GREEN>;
> +               function = LED_FUNCTION_STATUS;
> +       };
> +
> +       led@3 {
> +               reg = <3>;
> +               color = <LED_COLOR_ID_BLUE>;
> +               function = LED_FUNCTION_STATUS;
> +       };
> +};



-- 
With best wishes
Dmitry