drm/imx: Add active plane reconfiguration support

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We don't support configuring active plane on-the-fly for imx-drm.
The relevant CRTC should be disabled before the plane configuration.
Of course, the plane itself should be disabled as well.

This patch adds active plane reconfiguration support by forcing CRTC
mode change in plane's ->atomic_check callback so that the CRTC
will be disabled before the plane configuration.

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Peter Senna Tschudin <peter.senna@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

...

This commit is contained in:

Liu Ying 2016-08-26 15:30:44 +08:00 • committed by Philipp Zabel

parent 5f4df0c769

commit 1780999ced

2 changed files with 33 additions and 6 deletions

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26

drivers/gpu/drm/imx/imx-drm-core.c

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13

drivers/gpu/drm/imx/ipuv3-plane.c

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