linux-kernel - Re: [PATCH 4/4] arm64: dts: qcom: sm8550: Add video clock controller

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Message-ID: <CAA8EJprfVJxaGT80OxX6HXP5E8yCmpA3K82CL5JQdS923w7whQ@mail.gmail.com>
Date:   Mon, 15 May 2023 21:12:10 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>
Cc:     Jagadeesh Kona <quic_jkona@...cinc.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Taniya Das <quic_tdas@...cinc.com>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/4] arm64: dts: qcom: sm8550: Add video clock controller

On Mon, 15 May 2023 at 16:08, Konrad Dybcio <konrad.dybcio@...aro.org> wrote:
>
>
>
> On 15.05.2023 14:57, Dmitry Baryshkov wrote:
> > On Mon, 15 May 2023 at 15:28, Konrad Dybcio <konrad.dybcio@...aro.org> wrote:
> >>
> >>
> >>
> >> On 9.05.2023 18:12, Jagadeesh Kona wrote:
> >>> Add device node for video clock controller on Qualcomm SM8550 platform.
> >>>
> >>> Signed-off-by: Jagadeesh Kona <quic_jkona@...cinc.com>
> >>> Signed-off-by: Taniya Das <quic_tdas@...cinc.com>
> >>> ---
> >>>  arch/arm64/boot/dts/qcom/sm8550.dtsi | 12 ++++++++++++
> >>>  1 file changed, 12 insertions(+)
> >>>
> >>> diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> >>> index 6e9bad8f6f33..e67e7c69dae6 100644
> >>> --- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
> >>> +++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> >>> @@ -7,6 +7,7 @@
> >>>  #include <dt-bindings/clock/qcom,sm8550-gcc.h>
> >>>  #include <dt-bindings/clock/qcom,sm8550-tcsr.h>
> >>>  #include <dt-bindings/clock/qcom,sm8550-dispcc.h>
> >>> +#include <dt-bindings/clock/qcom,sm8550-videocc.h>
> >>>  #include <dt-bindings/dma/qcom-gpi.h>
> >>>  #include <dt-bindings/gpio/gpio.h>
> >>>  #include <dt-bindings/interrupt-controller/arm-gic.h>
> >>> @@ -759,6 +760,17 @@ gcc: clock-controller@...000 {
> >>>                                <&usb_dp_qmpphy QMP_USB43DP_USB3_PIPE_CLK>;
> >>>               };
> >>>
> >>> +             videocc: clock-controller@...0000 {
> >> This node should be moved down. Nodes with unit addresses
> >> should be sorted alphanumerically.
> >>
> >>> +                     compatible = "qcom,sm8550-videocc";
> >>> +                     reg = <0 0x0aaf0000 0 0x10000>;
> >>> +                     clocks = <&bi_tcxo_div2>, <&gcc GCC_VIDEO_AHB_CLK>;
> >> One per line, please
> >>
> >> Also, any reason the XO clock does not come from RPMhCC?
> >
> > bi_tcxo_div_2 is an RPMhCC clock with the fixed divider.
> Hm, I don't see it neither on -next or in this patchset..

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/arch/arm64/boot/dts/qcom/sm8550.dtsi?h=next-20230515#n41

-- 
With best wishes
Dmitry