linux-kernel - Re: [PATCH v3] drm/msm/dpu: drop validity checks for clear_pending

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Date: Sat, 22 Jun 2024 14:46:24 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Abhinav Kumar <quic_abhinavk@...cinc.com>
Cc: freedreno@...ts.freedesktop.org, Rob Clark <robdclark@...il.com>, 
	Sean Paul <sean@...rly.run>, Marijn Suijten <marijn.suijten@...ainline.org>, 
	David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, dri-devel@...ts.freedesktop.org, 
	quic_jesszhan@...cinc.com, dan.carpenter@...aro.org, linux-arm-msm@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] drm/msm/dpu: drop validity checks for
 clear_pending_flush() ctl op

On Thu, Jun 20, 2024 at 01:17:30PM GMT, Abhinav Kumar wrote:
> clear_pending_flush() ctl op is always assigned irrespective of the DPU
> hardware revision. Hence there is no needed to check whether the op has
> been assigned before calling it.
> 
> Drop the checks across the driver for clear_pending_flush() and also
> update its documentation that it is always expected to be assigned.
> 
> changes in v2:
> 	- instead of adding more validity checks just drop the one for clear_pending_flush
> 	- update the documentation for clear_pending_flush() ctl op
> 	- update the commit text reflecting these changes
> 
> changes in v3:
> 	- simplify the documentation of clear_pending_flush
> 
> Fixes: d7d0e73f7de3 ("drm/msm/dpu: introduce the dpu_encoder_phys_* for writeback")
> Reported-by: Dan Carpenter <dan.carpenter@...aro.org>
> Closes: https://lore.kernel.org/all/464fbd84-0d1c-43c3-a40b-31656ac06456@moroto.mountain/T/
> Signed-off-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c         | 3 +--
>  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c | 3 +--
>  drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h          | 3 ++-
>  3 files changed, 4 insertions(+), 5 deletions(-)
> 

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


-- 
With best wishes
Dmitry