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Message-ID: <0E711F23-A5C6-4AA1-A4EF-F6097ADA91AE@linaro.org>
Date:   Mon, 05 Dec 2022 23:49:08 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Kuogee Hsieh <quic_khsieh@...cinc.com>,
        dri-devel@...ts.freedesktop.org, robdclark@...il.com,
        sean@...rly.run, swboyd@...omium.org, dianders@...omium.org,
        vkoul@...nel.org, daniel@...ll.ch, airlied@...ux.ie,
        agross@...nel.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 v8 1/5] arm64: dts: qcom: add data-lanes and link-freuencies into dp_out endpoint



On 5 December 2022 22:14:26 GMT+03:00, Kuogee Hsieh <quic_khsieh@...cinc.com> 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
>
>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 | 6 +++++-
> 2 files changed, 10 insertions(+), 2 deletions(-)
>
>diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
>index eae22e6..0ad50e2 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 <162000000 270000000 540000000>;

This property still uses old values, it was not updated to Hz.

> };
> 
> &pm6150_adc {
>diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
>index c11e371..3c7a9d8 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>;
>-	data-lanes = <0 1>;
>+};
>+
>+&dp_out {
>+	data-lanes = <0  1>;
>+	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
> };
> 
> &mdss_mdp {

-- 
With best wishes
Dmitry

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