linux-kernel - Re: [PATCH 2/3] drm/msm/dp: do not touch the MMSS_DP_INTF

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Message-ID: <fieuuhtisu6ztpuzks32rvnjdfnusywmmcyj2oz7rg36ablo6l@thq5p2xha6jx>
Date: Tue, 3 Dec 2024 17:09:08 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Abhinav Kumar <quic_abhinavk@...cinc.com>
Cc: Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>, 
	Marijn Suijten <marijn.suijten@...ainline.org>, David Airlie <airlied@...il.com>, 
	Simona Vetter <simona@...ll.ch>, Stephen Boyd <swboyd@...omium.org>, 
	Kuogee Hsieh <quic_khsieh@...cinc.com>, linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
	freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
	Jessica Zhang <quic_jesszhan@...cinc.com>
Subject: Re: [PATCH 2/3] drm/msm/dp: do not touch the MMSS_DP_INTF_CONFIG for
 tpg

On Mon, Dec 02, 2024 at 12:41:59PM -0800, Abhinav Kumar wrote:
> MMSS_DP_INTF_CONFIG has already been setup by the main datapath
> for DP to account for widebus to be used/unused etc.
> 
> In current implementation, TPG only switches the DP controller
> to use the main datapath stream OR use the test pattern but expects
> the rest of the controller to be already setup.
> 
> Keeping the same behavior intact, drop the clearing of MMSS_DP_INTF_CONFIG
> from the msm_dp_catalog_panel_tpg_enable() API.
> 
> Fixes: 757a2f36ab09 ("drm/msm/dp: enable widebus feature for display port")
> Signed-off-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
> ---
>  drivers/gpu/drm/msm/dp/dp_catalog.c | 1 -
>  1 file changed, 1 deletion(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

-- 
With best wishes
Dmitry