linux-kernel - Re: [PATCH v3 2/4] drm/edid: Add a function to check monitor string

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Message-ID: <CAD=FV=UOhTGnhtc9gOQ5C_aAdgVcB+K7NL9RGm4umunF91Wkpg@mail.gmail.com>
Date: Mon, 4 Mar 2024 16:24:58 -0800
From: Doug Anderson <dianders@...omium.org>
To: Hsin-Yi Wang <hsinyi@...omium.org>
Cc: Jani Nikula <jani.nikula@...ux.intel.com>, Neil Armstrong <neil.armstrong@...aro.org>, 
	Jessica Zhang <quic_jesszhan@...cinc.com>, Sam Ravnborg <sam@...nborg.org>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, 
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, 
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Subject: Re: [PATCH v3 2/4] drm/edid: Add a function to check monitor string

Hi,

On Mon, Mar 4, 2024 at 4:19 PM Hsin-Yi Wang <hsinyi@...omium.org> wrote:
>
> > > Probably change to u32 drm_edid_get_panel_id(const struct drm_edid
> > > *);? Given that we still need to parse id from
> > > drm_edid_read_base_block().
> >
> > No, we no longer need to parse the id outside of drm_edid.c. You'll have
> > the id's in panel code in the form of struct drm_edid_ident (or
> > whatever), and use the match function to see if the opaque drm_edid
> > matches.
> >
> drm_panel prints the panel_id info on whether the panel is detected or not.
> https://elixir.bootlin.com/linux/v6.8-rc7/source/drivers/gpu/drm/panel/panel-edp.c#L792
>
> Is it okay to remove this information?

Hmmm, I guess it also is exported via debugfs, actually. See
detected_panel_show() in panel-edp.c. We probably don't want to remove
that...