linux-kernel - Re: [PATCH v3 37/38] drm/msm/dp: fix the intf

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Message-ID: <7b243866-a877-40c3-86cd-ddfb582969eb@oss.qualcomm.com>
Date: Tue, 25 Nov 2025 14:47:19 +0800
From: Yongxing Mou <yongxing.mou@....qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: Rob Clark <robin.clark@....qualcomm.com>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Abhinav Kumar
 <abhinav.kumar@...ux.dev>,
        Jessica Zhang <jessica.zhang@....qualcomm.com>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Abhinav Kumar <quic_abhinavk@...cinc.com>
Subject: Re: [PATCH v3 37/38] drm/msm/dp: fix the intf_type of MST interfaces



On 8/27/2025 9:18 AM, Dmitry Baryshkov wrote:
> On Mon, Aug 25, 2025 at 10:16:23PM +0800, Yongxing Mou wrote:
>> From: Abhinav Kumar <quic_abhinavk@...cinc.com>
>>
>> Interface type of MST interfaces is currently INTF_NONE. Update this to
>> INTF_DP. And correct the intf_6 intr_underrun/intr_vsync index for
>> dpu_8_4_sa8775p.
>>
>> Signed-off-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
>> Signed-off-by: Yongxing Mou <yongxing.mou@....qualcomm.com>
>> ---
>>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_0_sc8280xp.h |  6 +++---
>>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_4_sa8775p.h  | 12 ++++++------
>>   drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_2_x1e80100.h |  6 +++---
> 
> Also, as far as I remember, INTF_3 is not a DP1, but DP0 MST on the following platforms:
> - 4.0, SDM845
> - 5.0, SM8150
> - 5.2, SM7150
> - 5.3, SM6150
> - 6.0, SM8250
> - 7.0, SM8350
> - 8.1, SM8450
> - 9.0, SM8550
> - 9.1, SAR2130P
> - 10.0, SM8650
> 
> Please update them them as a separate patch.
> 
Sure.. thanks for that. i check the HPD, INTF_3 should always being DP0 
MST(if DPU hardware exist INTF_3). will post another patch to fix them.> 
For this patch:
> 
> 
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> 
> 
>