linux-kernel - Re: [PATCH v14 1/5] arm64: dts: qcom: add data-lanes and link-freuencies into dp

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Message-ID: <54bd8b85-8b68-4b28-ec68-28edf9a8a097@quicinc.com>
Date:   Thu, 22 Dec 2022 08:22:16 -0800
From:   Kuogee Hsieh <quic_khsieh@...cinc.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        <dri-devel@...ts.freedesktop.org>, <robdclark@...il.com>,
        <sean@...rly.run>, <swboyd@...omium.org>, <dianders@...omium.org>,
        <vkoul@...nel.org>, <daniel@...ll.ch>, <agross@...nel.org>,
        <dmitry.baryshkov@...aro.org>, <andersson@...nel.org>,
        <konrad.dybcio@...ainline.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <devicetree@...r.kernel.org>,
        <airlied@...il.com>
CC:     <quic_abhinavk@...cinc.com>, <quic_sbillaka@...cinc.com>,
        <freedreno@...ts.freedesktop.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v14 1/5] arm64: dts: qcom: add data-lanes and
 link-freuencies into dp_out endpoint


On 12/22/2022 2:47 AM, Krzysztof Kozlowski wrote:
> On 16/12/2022 20:11, Kuogee Hsieh wrote:
>> Move data-lanes property from mdss_dp node to dp_out endpoint. Also
>> add link-frequencies property into dp_out endpoint as well. The last
>> frequency specified at link-frequencies will be the max link rate
>> supported by DP.
>>
>> Changes in v5:
>> -- revert changes at sc7180.dtsi and sc7280.dtsi
>> -- add &dp_out to sc7180-trogdor.dtsi and sc7280-herobrine.dtsi
>>
>> Changes in v6:
>> -- add data-lanes and link-frequencies to yaml
>>
>> Changes in v7:
>> -- change 160000000 to 1620000000
>> -- separate yaml to different patch
>>
>> Changes in v8:
>> -- correct Bjorn mail address to kernel.org
>>
>> Changes in v9:
>> -- use symbol rate (hz) for link-frequencies at dp_out at sc7180_trogdor.dtsi
>>
>> Changes in v13:
>> -- delete an extra space at data-lanes
>>
>> Signed-off-by: Kuogee Hsieh <quic_khsieh@...cinc.com>
>> ---
>>   arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi   | 6 +++++-
>>   arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi | 4 ++++
>>   2 files changed, 9 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
>> index eae22e6..e2783dd 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
>> @@ -814,7 +814,11 @@ hp_i2c: &i2c9 {
>>   	status = "okay";
>>   	pinctrl-names = "default";
>>   	pinctrl-0 = <&dp_hot_plug_det>;
>> -	data-lanes = <0 1>;
>> +};
>> +
>> +&dp_out {
>> +    data-lanes = <0 1>;
>> +    link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000>;
> Messed order of nodes.

can you please give me more details and how should i fixed it?

Thanks,

>>   };
>>   
>>   &pm6150_adc {
>> diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
>> index c11e371..3f363f8 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
>> @@ -442,7 +442,11 @@ ap_i2c_tpm: &i2c14 {
>>   	status = "okay";
>>   	pinctrl-names = "default";
>>   	pinctrl-0 = <&dp_hot_plug_det>;
>> +};
>> +
>> +&dp_out {
> Same problem here.
>
>
> Best regards,
> Krzysztof
>