linux-kernel - Re: [PATCH v3 21/38] drm/msm/dp: Add support for sending VCPF packets in DP controller

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Message-ID: <irlo6dhfm23b56hojskn5oxwznwmcfpwkbq6zq66o7bhxvq6w5@4qaldcvcwqev>
Date: Wed, 27 Aug 2025 00:28:26 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Yongxing Mou <yongxing.mou@....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 21/38] drm/msm/dp: Add support for sending VCPF
 packets in DP controller

On Mon, Aug 25, 2025 at 10:16:07PM +0800, Yongxing Mou wrote:
> From: Abhinav Kumar <quic_abhinavk@...cinc.com>
> 
> The VC Payload Fill (VCPF) sequence is inserted by the DP controller
> when stream symbols are absent, typically before a stream is disabled.
> This patch adds support for triggering the VCPF sequence in the MSM DP
> controller.
> 
> Signed-off-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
> Signed-off-by: Yongxing Mou <yongxing.mou@....qualcomm.com>
> ---
>  drivers/gpu/drm/msm/dp/dp_ctrl.c    | 56 ++++++++++++++++++++++++++++++++++---
>  drivers/gpu/drm/msm/dp/dp_ctrl.h    |  2 +-
>  drivers/gpu/drm/msm/dp/dp_display.c |  2 +-
>  drivers/gpu/drm/msm/dp/dp_reg.h     |  6 ++++
>  4 files changed, 60 insertions(+), 6 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>


-- 
With best wishes
Dmitry