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

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Date: Mon, 22 Jan 2024 15:37:02 +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 Mon, 22 Jan 2024 at 08:26, hui liu <quic_huliu@...cinc.com> wrote:
>
>
>
> On 1/22/2024 1:42 PM, hui liu wrote:
> >
> >
> > On 1/18/2024 10:06 AM, hui liu wrote:
> >>
> >>
> >> On 1/17/2024 11:41 AM, Dmitry Baryshkov wrote:
> >>> 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?
> >
> >> In the HW design, they are three seprete LEDs, there are three LEDs on
> >> device. why do we need to add for multi-led?
> >>
> >> Thanks,
> >> Hui
>
> I double confirmed the HW design, for IDP devcie, we should set it to
> multi led, for another similar device(RB3-GEN2, I will push LED change
> for this device later), it should be set to seperate LED.
> They are different, so I will push V6 to set it for multi-led for
> QCM6490-IDP device. Thanks for your review.

Ack, thank you.

>
> >>>
> >>>>
> >>>> +&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