[PATCH v5 05/12] drm/modes: Rewrite the command line parser

[Maxime Ripard]

Hi,

On Fri, Jul 05, 2019 at 07:54:47PM +0300, Dmitry Osipenko wrote:
> 17.06.2019 17:51, Maxime Ripard пишет:
> > From: Maxime Ripard <maxime.ripard at free-electrons.com>
> >
> > Rewrite the command line parser in order to get away from the state machine
> > parsing the video mode lines.
> >
> > Hopefully, this will allow to extend it more easily to support named modes
> > and / or properties set directly on the command line.
> >
> > Reviewed-by: Noralf Trønnes <noralf at tronnes.org>
> > Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>
> > ---
> >  drivers/gpu/drm/drm_modes.c | 325 +++++++++++++++++++++++--------------
> >  1 file changed, 210 insertions(+), 115 deletions(-)
>
> I have a Tegra device that uses a stock android bootloader which
> passes "video=tegrafb" in the kernels cmdline. That wasn't a problem
> before this patch, but now Tegra DRM driver fails to probe because
> the mode is 0x0:0 and hence framebuffer allocation fails. Is it a
> legit regression that should be fixed in upstream?

Thierry indeed reported that issue, but the discussion pretty much
stalled since then.

Maxime

--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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