git.maquefel.me Git - linux.git/commit

author	Rob Clark <robdclark@chromium.org>
	Fri, 4 Mar 2022 20:21:45 +0000 (12:21 -0800)
committer	Rob Clark <robdclark@chromium.org>
	Mon, 7 Mar 2022 03:28:47 +0000 (19:28 -0800)
commit	9225b337072a10bf9b09df8bf281437488dd8a26
tree	831488dfa5cafa9e8c5976e9e49d489591d4819d	tree \| snapshot
parent	cca96584b35765bf9eb5f38ca55a144ea2ba0de4	commit \| diff

drm/msm: Fix dirtyfb refcounting

refcount_t complains about 0->1 transitions, which isn't *quite* what we
wanted. So use dirtyfb==1 to mean that the fb is not connected to any
output that requires dirtyfb flushing, so that we can keep the underflow
and overflow checking.

Fixes: 9e4dde28e9cd ("drm/msm: Avoid dirtyfb stalls on video mode displays (v2)")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20220304202146.845566-1-robdclark@gmail.com

drivers/gpu/drm/msm/msm_fb.c

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ep93xx device tree rework repo: git://git.maquefel.me/linux.git

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