[RFC PATCH 04/10] drm/panel_helper: Introduce drm_panel_helper

[Maxime Ripard]

On Tue, Sep 05, 2023 at 12:12:58PM -0700, Doug Anderson wrote:
> Hi,
> 
> On Tue, Sep 5, 2023 at 9:45 AM Doug Anderson <dianders at chromium.org> wrote:
> >
> > As per our discussion, in V2 we will make drm_panel_remove() actually
> > unprepare / disable a panel if it was left enabled. This would
> > essentially fold in the drm_panel_helper_shutdown() from my RFC patch.
> > This would make tdo_tl070wsh30_panel_remove() behave the same as it
> > did before. Ugh, though I may have to think about this more when I get
> > to implementation since I don't think there's a guarantee of the
> > ordering of shutdown calls between the DRM driver and the panel.
> > Anyway, something to discuss later.
> 
> Ugh, ignore the above paragraph. I managed to confuse myself and was
> thinking about shutdown but talking about remove. Sigh. :( Instead,
> pretend the above paragraph said:
> 
> As per our discussion, in V2 we will make drm_panel_remove() actually
> unprepare / disable a panel (and print a warning) if it was left
> enabled. This would essentially fold in the
> drm_panel_helper_shutdown() from my RFC patch (but add a warning).
> This would make tdo_tl070wsh30_panel_remove() behave the same as it
> did before with the addition of a warning if someone tries to remove a
> currently powered panel.

Ok, that works for me :)

Maxime
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