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(parent: 5b49afd) | patch
drm: atmel-hlcdc: reset layer A2Q and UPDATE bits when disabling it
authorBoris Brezillon <boris.brezillon@free-electrons.com>
Fri, 6 Feb 2015 15:04:08 +0000 (16:04 +0100)
committerBoris Brezillon <boris.brezillon@free-electrons.com>
Tue, 24 Feb 2015 10:45:11 +0000 (11:45 +0100)
commitbd4248bb5e8b41f88a2789ee124dce3e9ec4f227
tree2dd81b368016abfdff0d93ce12184f33352d12d9tree | snapshot
parent5b49afd60a850acca321a87eb83ab0c387725206commit | diff
drm: atmel-hlcdc: reset layer A2Q and UPDATE bits when disabling it

The A2Q (Add To Queue) and UPDATE bits are left in their previous state
when resetting the layer.
This lead to weird behavior when enabling the plane again: the framebuffer
previously queued is dequeued and we end up with access to an old memory
region.

Reset those bits when resetting the channel.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.c diff | blob | history
Linux kernel for KaRo TX COM modules