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

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Message-ID: <013459fd-fbb0-4225-90e3-a16115154646@quicinc.com>
Date: Tue, 24 Sep 2024 12:46:34 +0530
From: Mahadevan P <quic_mahap@...cinc.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
CC: <robdclark@...il.com>, <quic_abhinavk@...cinc.com>, <sean@...rly.run>,
        <marijn.suijten@...ainline.org>, <airlied@...il.com>,
        <daniel@...ll.ch>, <maarten.lankhorst@...ux.intel.com>,
        <mripard@...nel.org>, <tzimmermann@...e.de>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>, <swboyd@...omium.org>,
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        <bigfoot@...ssfun.cn>, <neil.armstrong@...aro.org>,
        <mailingradian@...il.com>, <quic_jesszhan@...cinc.com>,
        <andersson@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <dri-devel@...ts.freedesktop.org>, <freedreno@...ts.freedesktop.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <quic_kalyant@...cinc.com>, <quic_jmadiset@...cinc.com>,
        <quic_vpolimer@...cinc.com>
Subject: Re: [PATCH 0/5] Add display support for Qualcomm SA8775P platform


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@quicinc.com/
> 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?

>
>> ---
>>
>> 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
>>