Messages in this thread | | | From | Chen-Yu Tsai <> | Date | Thu, 4 Jan 2018 23:49:04 +0800 | Subject | Re: [PATCH v2 09/12] drm/sun4i: backend: Add a custom atomic_check for the frontend |
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On Mon, Dec 18, 2017 at 10:57 PM, Maxime Ripard <maxime.ripard@free-electrons.com> wrote: > Now that we have everything in place, we can start enabling the frontend. > This is more difficult than one would assume since there can only be one > plane using the frontend per-backend. > > We therefore need to make sure that the userspace will not try to setup > multiple planes using it, since that would be impossible. In order to > prevent that, we can create an atomic_check callback that will check that > only one plane will effectively make use of the frontend in a given > configuration, and will toggle the switch in that plane state so that the > proper setup function can do their role. > > Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> > Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
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