linux-kernel - Re: [RFC PATCH 04/10] drm/panel_helper: Introduce drm_panel

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Date:   Wed, 13 Sep 2023 11:28:54 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Maxime Ripard <mripard@...nel.org>
Cc:     dri-devel@...ts.freedesktop.org,
        Linus Walleij <linus.walleij@...aro.org>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...il.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 04/10] drm/panel_helper: Introduce drm_panel_helper

Hi,

On Thu, Sep 7, 2023 at 7:15 AM Maxime Ripard <mripard@...nel.org> wrote:
>
> > a) Block landing the change to "panel-tdo-tl070wsh30.c" until after
> > all drivers properly call drm_atomic_helper_shutdown().
>
> I don't think we care about all drivers here. Only the driver it's
> enabled with would be a blocker. Like, let's say sun4i hasn't been
> converted but that panel is only used with rockchip anyway, we don't
> really care that sun4i shutdown patch hasn't been merged (yet).

Yeah, I suppose that would work, though it would require a bit of
research. Some other things have popped onto my plate recently, but
for now I'm going to focus on seeing how much of the drivers can get
their shutdown fixed. When that stalls out then we can see if we can
unblock some of the panels by digging into which DRM drivers they're
used with.

Also, as my proposal in the cover letter [1], I'm leaving a breadcrumb
here that I landed the first 3 patches in this series just to get them
out of the way. Those 3 patches didn't depend on the resolution of the
issues discussed here.

[1] https://lore.kernel.org/lkml/CAD=FV=UFuUsrrZmkL8_RL5WLvkJryDwRSAy_PWTa-hX_p0dF+Q@mail.gmail.com/