Re: [PATCH 0/5] Add display support for Qualcomm SA8775P platform

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On Tue, 24 Sept 2024 at 09:16, Mahadevan P <quic_mahap@xxxxxxxxxxx> wrote:
>
>
> On 9/12/2024 1:26 PM, Dmitry Baryshkov wrote:
> > On Thu, Sep 12, 2024 at 12:44:32PM GMT, Mahadevan wrote:
> >> Add support for mdss and dpu driver on Qualcomm SA8775P platform.
> >>
> >> ---
> >> This series depends on following series:
> >> https://lore.kernel.org/all/20240816-sa8775p-mm-v3-v1-0-77d53c3c0cef@xxxxxxxxxxx/
> > As such, it probably can not be merged before 6.14 (the mentioned series
> > will go on 6.13, we usually don't do cross-tree merges into drm). Please
> > rework the bindings to drop the dependency (it is possible, use fake
> > nodes instead of using dispcc + ID). Then you can specify that only the
> > DTS patch depends on the dispcc support, allowing driver changes to go
> > in first.
>
>
> Can we use clocks = <&dummy_dispcc 0>, <&dummy_dispcc 1>,
> <&dummy_dispcc 2>; instead of  clocks =  <&dispcc0
> MDSS_DISP_CC_MDSS_AHB_CLK>, <&dispcc0 MDSS_DISP_CC_MDSS_MDP_LUT_CLK>,
> <&dispcc0 MDSS_DISP_CC_MDSS_MDP_CLK>; in dt bindings?

Please take a look at how other platforms solved that already rather
than inventing a new way. For example, see sm7150, sm8650, x1e80100.

>
> >
> >> ---
> >>
> >> Mahadevan (5):
> >>    dt-bindings: display/msm: Document MDSS on SA8775P
> >>    dt-bindings: display/msm: Document the DPU for SA8775P
> >>    drm/msm: mdss: Add SA8775P support
> >>    drm/msm/dpu: Add SA8775P support
> >>    arm64: dts: qcom: sa8775p: add display dt nodes
> >>
> >>   .../display/msm/qcom,sa8775p-dpu.yaml         | 120 +++++
> >>   .../display/msm/qcom,sa8775p-mdss.yaml        | 225 ++++++++
> >>   arch/arm64/boot/dts/qcom/sa8775p.dtsi         |  85 +++
> >>   .../msm/disp/dpu1/catalog/dpu_8_4_sa8775p.h   | 485 ++++++++++++++++++
> >>   .../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c    |   3 +-
> >>   .../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h    |   3 +-
> >>   drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c       |   3 +-
> >>   drivers/gpu/drm/msm/msm_mdss.c                |  10 +
> >>   8 files changed, 931 insertions(+), 3 deletions(-)
> >>   create mode 100644 Documentation/devicetree/bindings/display/msm/qcom,sa8775p-dpu.yaml
> >>   create mode 100644 Documentation/devicetree/bindings/display/msm/qcom,sa8775p-mdss.yaml
> >>   create mode 100644 drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_4_sa8775p.h
> >>
> >> --
> >> 2.34.1
> >>



-- 
With best wishes
Dmitry




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