From: Doug Anderson <dianders@chromium.org>
To: Stephen Boyd <swboyd@chromium.org>
Cc: Rob Clark <robdclark@gmail.com>,
Abhinav Kumar <quic_abhinavk@quicinc.com>,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
LKML <linux-kernel@vger.kernel.org>,
patches@lists.linux.dev, Sean Paul <sean@poorly.run>,
dri-devel <dri-devel@lists.freedesktop.org>,
freedreno <freedreno@lists.freedesktop.org>,
Hsin-Yi Wang <hsinyi@chromium.org>
Subject: Re: [PATCH] drm/msm/dsi: Set panel orientation when directly connected
Date: Fri, 8 Jul 2022 08:25:44 -0700 [thread overview]
Message-ID: <CAD=FV=UrYCwm2ByN_5EN3fq-ayMJNjmWfJ5sooRy51ZiCoMcjA@mail.gmail.com> (raw)
In-Reply-To: <20220706191442.1150634-1-swboyd@chromium.org>
Hi,
On Wed, Jul 6, 2022 at 12:14 PM Stephen Boyd <swboyd@chromium.org> wrote:
>
> Set the panel orientation in drm when the panel is directly connected,
> i.e. we're not using an external bridge. The external bridge case is
> already handled by the panel bridge code, so we only update the path we
> take when the panel is directly connected/internal. This silences a
> warning splat coming from __drm_mode_object_add() on Wormdingler boards.
>
> Cc: Hsin-Yi Wang <hsinyi@chromium.org>
> Cc: Douglas Anderson <dianders@chromium.org>
> Signed-off-by: Stephen Boyd <swboyd@chromium.org>
> ---
>
> This relies on commit 5e41b01a7808 ("drm/panel: Add an API to allow drm
> to set orientation from panel") which is in drm-misc
>
> drivers/gpu/drm/msm/dsi/dsi_manager.c | 2 ++
> 1 file changed, 2 insertions(+)
I don't personally have objections to this, but (to my understanding)
"the future" is that everyone should use panel_bridge. If we made the
move to panel_bridge today then we wouldn't need to do this. In
general I think panel_bridge would end up letting us delete a bunch of
code...
See commit 4e5763f03e10 ("drm/bridge: ti-sn65dsi86: Wrap panel with
panel-bridge") for when this was done by ti-sn65dsi86.
Then again, I spent a small amount of time looking into this and it's
definitely non-trivial. Still likely worthwhile, but not worth
blocking a tiny fix like this. It also should be fairly obvious that
we should delete this when we switch to panel_bridge.
Thus:
Reviewed-by: Douglas Anderson <dianders@chromium.org>
I'll assume that we'll just snooze this commit until drm-misc-next
merges into a tree that msm-next is based on, which will probably be
the next -rc1. If desired and Acked I could land this in
drm-misc-next, but it's probably not worth it?
next prev parent reply other threads:[~2022-07-08 15:26 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-06 19:14 [PATCH] drm/msm/dsi: Set panel orientation when directly connected Stephen Boyd
2022-07-07 21:11 ` Abhinav Kumar
2022-07-07 21:21 ` Stephen Boyd
2022-07-07 21:25 ` [Freedreno] " Abhinav Kumar
2022-07-08 15:25 ` Doug Anderson [this message]
2022-07-08 16:00 ` Abhinav Kumar
2022-07-08 19:42 ` Abhinav Kumar
2022-07-08 20:58 ` Dmitry Baryshkov
2022-07-08 21:17 ` Abhinav Kumar
2022-07-20 20:46 ` Rob Clark
2022-07-20 22:42 ` Doug Anderson
2022-08-17 20:48 ` Doug Anderson
2022-08-18 23:11 ` [Freedreno] " Abhinav Kumar
2022-09-01 8:42 ` Dmitry Baryshkov
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