linux-kernel - Re: [PATCH v3] drm/msm/dp: return correct Colorimetry for DP_TEST_DYNAMIC_RANGE

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Message-ID: <CAA8EJpqm5KW_UOkvV1JhX+LEh_e8bo549NNQ1AgAXMZ=ZPVCOA@mail.gmail.com>
Date: Fri, 19 Jan 2024 14:41:43 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Kuogee Hsieh <quic_khsieh@...cinc.com>
Cc: dri-devel@...ts.freedesktop.org, robdclark@...il.com, sean@...rly.run, 
	swboyd@...omium.org, dianders@...omium.org, vkoul@...nel.org, daniel@...ll.ch, 
	airlied@...il.com, agross@...nel.org, andersson@...nel.org, 
	quic_abhinavk@...cinc.com, quic_jesszhan@...cinc.com, 
	quic_sbillaka@...cinc.com, marijn.suijten@...ainline.org, 
	freedreno@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] drm/msm/dp: return correct Colorimetry for
 DP_TEST_DYNAMIC_RANGE_CEA case

On Wed, 17 Jan 2024 at 23:13, Kuogee Hsieh <quic_khsieh@...cinc.com> wrote:
>
> MSA MISC0 bit 1 to 7 contains Colorimetry Indicator Field.
> dp_link_get_colorimetry_config() returns wrong colorimetry value
> in the DP_TEST_DYNAMIC_RANGE_CEA case in the current implementation.
> Hence fix this problem by having dp_link_get_colorimetry_config()
> return defined CEA RGB colorimetry value in the case of
> DP_TEST_DYNAMIC_RANGE_CEA.
>
> Changes in V2:
> -- drop retrieving colorimetry from colorspace
> -- drop dr = link->dp_link.test_video.test_dyn_range assignment
>
> Changes in V3:
> -- move defined MISCr0a Colorimetry vale to dp_reg.h
> -- rewording commit title
> -- rewording commit text to more precise describe this patch
>
> Fixes: c943b4948b58 ("drm/msm/dp: add displayPort driver support")
> Signed-off-by: Kuogee Hsieh <quic_khsieh@...cinc.com>
> ---
>  drivers/gpu/drm/msm/dp/dp_link.c | 12 +++++++-----
>  drivers/gpu/drm/msm/dp/dp_reg.h  |  3 +++
>  2 files changed, 10 insertions(+), 5 deletions(-)

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

-- 
With best wishes
Dmitry