linux-kernel - Re: [PATCH v3 9/9] arm64: dts: qcom: Add display support for QCS615 RIDE board

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Message-ID: <CAA8EJpqvkeMWgeWCx9D-HcJhRfipZJdEvpvag0wk-WXazkPahA@mail.gmail.com>
Date: Tue, 26 Nov 2024 00:08:10 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: fange zhang <quic_fangez@...cinc.com>
Cc: Rob Clark <robdclark@...il.com>, Abhinav Kumar <quic_abhinavk@...cinc.com>, 
	Sean Paul <sean@...rly.run>, Marijn Suijten <marijn.suijten@...ainline.org>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, 
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Krishna Manikandan <quic_mkrishn@...cinc.com>, Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konradybcio@...nel.org>, Catalin Marinas <catalin.marinas@....com>, 
	Will Deacon <will@...nel.org>, Li Liu <quic_lliu6@...cinc.com>, 
	Xiangxu Yin <quic_xiangxuy@...cinc.com>, linux-arm-msm@...r.kernel.org, 
	dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 9/9] arm64: dts: qcom: Add display support for QCS615
 RIDE board

On Mon, 25 Nov 2024 at 09:39, fange zhang <quic_fangez@...cinc.com> wrote:
>
>
>
> On 2024/11/22 18:22, Dmitry Baryshkov wrote:
> > On Fri, Nov 22, 2024 at 05:56:52PM +0800, Fange Zhang wrote:
> >> From: Li Liu <quic_lliu6@...cinc.com>
> >>
> >> Add display MDSS and DSI configuration for QCS615 RIDE board.
> >> QCS615 has a DP port, and DP support will be added in a later patch.
> >>
> >> Signed-off-by: Li Liu <quic_lliu6@...cinc.com>
> >> Signed-off-by: Fange Zhang <quic_fangez@...cinc.com>
> >> ---
> >>   arch/arm64/boot/dts/qcom/qcs615-ride.dts | 76 ++++++++++++++++++++++++++++++++
> >>   1 file changed, 76 insertions(+)
> >>
> >> diff --git a/arch/arm64/boot/dts/qcom/qcs615-ride.dts b/arch/arm64/boot/dts/qcom/qcs615-ride.dts
> >> index ee6cab3924a6d71f29934a8debba3a832882abdd..cc7dadc411ab79b9e60ccb15eaff84ea5f997c4c 100644
> >> --- a/arch/arm64/boot/dts/qcom/qcs615-ride.dts
> >> +++ b/arch/arm64/boot/dts/qcom/qcs615-ride.dts
> >> @@ -202,6 +202,82 @@ &gcc {
> >>               <&sleep_clk>;
> >>   };
> >>
> >> +&i2c2 {
> >> +    clock-frequency = <400000>;
> >> +    status = "okay";
> >> +
> >> +    ioexp: gpio@3e {
> >> +            compatible = "semtech,sx1509q";
> >> +            reg = <0x3e>;
> >> +            interrupt-parent = <&tlmm>;
> >> +            interrupts = <58 0>;
> >> +            gpio-controller;
> >> +            #gpio-cells = <2>;
> >> +            interrupt-controller;
> >> +            #interrupt-cells = <2>;
> >> +            semtech,probe-reset;
> >> +    };
> >> +
> >> +    i2c-mux@77 {
> >> +            compatible = "nxp,pca9542";
> >> +            reg = <0x77>;
> >> +            #address-cells = <1>;
> >> +            #size-cells = <0>;
> >> +            i2c@0 {
> >> +                    reg = <0>;
> >> +                    #address-cells = <1>;
> >> +                    #size-cells = <0>;
> >> +
> >> +                    anx7625@58 {
> >> +                            compatible = "analogix,anx7625";
> >> +                            reg = <0x58>;
> >> +                            interrupt-parent = <&ioexp>;
> >> +                            interrupts = <0 0>;
> >> +                            enable-gpios = <&tlmm 4 GPIO_ACTIVE_HIGH>;
> >> +                            reset-gpios = <&tlmm 5 GPIO_ACTIVE_HIGH>;
> >> +                            wakeup-source;
> >> +
> >> +                            ports {
> >> +                                    #address-cells = <1>;
> >> +                                    #size-cells = <0>;
> >> +
> >> +                                    port@0 {
> >> +                                            reg = <0>;
> >> +                                            anx_7625_in: endpoint {
> >> +                                                    remote-endpoint = <&mdss_dsi0_out>;
> >> +                                            };
> >> +                                    };
> >> +
> >> +                                    port@1 {
> >> +                                            reg = <1>;
> >> +                                            anx_7625_out: endpoint {
> >> +                                            };
> >
> > Where is it connected? Is it DP port? USB-C? eDP?
> yes, it's DP port

So, I'd expect to see a dp-connector node at the end, not the
unterminated anx7625.

> >
> >> +                                    };
> >> +                            };
> >> +                    };
> >> +            };
> >> +    };
> >> +};
> >> +
> >> +&mdss {
> >> +    status = "okay";
> >> +};
> >> +
> >> +&mdss_dsi0 {
> >> +    vdda-supply = <&vreg_l11a>;
> >> +    status = "okay";
> >> +};
> >> +
> >> +&mdss_dsi0_out {
> >> +    remote-endpoint = <&anx_7625_in>;
> >> +    data-lanes = <0 1 2 3>;
> >> +};
> >> +
> >> +&mdss_dsi0_phy {
> >> +    vdds-supply = <&vreg_l5a>;
> >> +    status = "okay";
> >> +};
> >> +
> >>   &qupv3_id_0 {
> >>      status = "okay";
> >>   };
> >>
> >> --
> >> 2.34.1
> >>
> >
>


-- 
With best wishes
Dmitry