drm/panel/raspberrypi-touchscreen: Initialise the bridge in prepare
[ Upstream commit 5f18c078 ] The panel has a prepare call which is before video starts, and an enable call which is after. The Toshiba bridge should be configured before video, so move the relevant power and initialisation calls to prepare. Fixes: 2f733d61 ("drm/panel: Add support for the Raspberry Pi 7" Touchscreen.") Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20220415162513.42190-3-stefan.wahren@i2se.com Signed-off-by: Sasha Levin <sashal@kernel.org>
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