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MLK-16928: drm: dcss: fix modesetting issues
authorLaurentiu Palcu <laurentiu.palcu@nxp.com>
Tue, 21 Nov 2017 13:00:28 +0000 (15:00 +0200)
committerLeonard Crestez <leonard.crestez@nxp.com>
Wed, 17 Apr 2019 23:51:34 +0000 (02:51 +0300)
commit00cf6974f4aa2583d1f66a71437522fe5b893255
treed9fe9f1dc0ba66fa090f5583cb663b364f6efdf1tree | snapshot
parentf6785c3cbb5b8010e8c5e62d697f65ba0953583ecommit | diff
MLK-16928: drm: dcss: fix modesetting issues

DTG needs to be completely stopped before changing the display
resolution through modesetting. If DTG is not stopped, any change in
resolution could result in unpredictable results, like split screen,
etc.

This patch fixes that by introducing a completion signaling mechanism so
that we can signal the DRM CRTC when DCSS core is done stopping DTG.

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
drivers/gpu/drm/imx/dcss/dcss-crtc.c diff | blob | history
drivers/gpu/imx/dcss/dcss-dtg.c diff | blob | history
include/video/imx-dcss.h diff | blob | history