From: Paul Cercueil <paul@crapouillou.net>
To: Maxime Ripard <maxime@cerno.tech>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
Simon Ser <contact@emersion.fr>,
od@zcrc.me, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH] drm: DON'T require each CRTC to have a unique primary plane
Date: Mon, 29 Mar 2021 16:15:28 +0100 [thread overview]
Message-ID: <S1LQQQ.K5HO8ISMBGA02@crapouillou.net> (raw)
In-Reply-To: <20210329140731.tvkfxic4fu47v3rz@gilmour>
Hi Maxime,
Le lun. 29 mars 2021 à 16:07, Maxime Ripard <maxime@cerno.tech> a
écrit :
> On Sat, Mar 27, 2021 at 11:22:14AM +0000, Paul Cercueil wrote:
>> The ingenic-drm driver has two mutually exclusive primary planes
>> already; so the fact that a CRTC must have one and only one primary
>> plane is an invalid assumption.
>
> I mean, no? It's been documented for a while that a CRTC should only
> have a single primary, so I'd say that the invalid assumption was that
> it was possible to have multiple primary planes for a CRTC.
Documented where?
I did read the doc of "enum drm_plane_type" in <drm/drm_plane.h>, and
the DRM_PLANE_TYPE_PRIMARY describes my two planes, so I went with that.
-Paul
> Since it looks like you have two mutually exclusive planes, just
> expose
> one and be done with it?
>
> Maxime
next prev parent reply other threads:[~2021-03-29 15:16 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-27 11:22 [PATCH] drm: DON'T require each CRTC to have a unique primary plane Paul Cercueil
2021-03-27 11:24 ` Simon Ser
2021-03-27 11:26 ` Paul Cercueil
2021-03-29 8:15 ` Pekka Paalanen
2021-03-29 11:41 ` Paul Cercueil
2021-03-29 14:35 ` Pekka Paalanen
2021-03-29 15:21 ` Paul Cercueil
2021-03-29 14:07 ` Maxime Ripard
2021-03-29 14:11 ` Simon Ser
2021-03-29 15:32 ` Paul Cercueil
2021-03-29 15:36 ` Simon Ser
2021-03-30 6:55 ` Pekka Paalanen
2021-03-29 15:15 ` Paul Cercueil [this message]
2021-03-29 15:35 ` Maxime Ripard
2021-03-29 15:39 ` Paul Cercueil
2021-03-29 15:42 ` Simon Ser
2021-03-29 16:15 ` Paul Cercueil
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