Messages in this thread | | | From | Chen-Yu Tsai <> | Date | Thu, 4 Jan 2018 22:50:49 +0800 | Subject | Re: [PATCH v2 11/12] drm/sun4i: backend: Make sure we don't have a commit pending |
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On Mon, Dec 18, 2017 at 10:57 PM, Maxime Ripard <maxime.ripard@free-electrons.com> wrote: > If we try to read the backend registers while it fetches the new values, we > end up with the value of some random register instead of the one we asked > for. > > In order to prevent that, let's make sure that the very first thing we do > during our atomic modesetting is to let the commit bit come to a rest. > > We don't have to worry about anything else since the only time we will > trigger a new transaction is during the atomic_commit which comes much > later. > > Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
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