[PATCH 0/4] Fix DP busy wait and defer disabling overlay plane
Philipp Zabel
p.zabel at pengutronix.de
Mon Feb 27 11:28:20 UTC 2017
Hi,
this series fixes an issue with the IPU DC/DP/IDMAC disable sequence. The
interrupt waiting code didn't work as expected, sometimes causing busy waits
longer than the timeout in drm_atomic_helper_wait_for_vblanks, which would
cause crashes similar to the reported "imxdrm issue on SABRE Lite" [1].
[1] http://www.spinics.net/lists/dri-devel/msg132485.html
I could only reproduce the error when the overlay plane was involved, using
weston with the atomic modeset patchset to trigger it, so I'm not sure if this
fixes the issue above, too.
regards
Philipp
Lucas Stach (1):
gpu: ipu-v3: remove IRQ dance on DC channel disable
Philipp Zabel (3):
gpu: ipu-v3: add unsynchronised DP channel disabling
drm/imx: call drm_atomic_helper_commit_hw_done after
drm_atomic_helper_wait_for_vblanks
drm/imx: add deferred plane disabling
drivers/gpu/drm/imx/imx-drm-core.c | 11 +++++--
drivers/gpu/drm/imx/ipuv3-crtc.c | 22 +++++++++++++-
drivers/gpu/drm/imx/ipuv3-plane.c | 24 ++++++++++-----
drivers/gpu/drm/imx/ipuv3-plane.h | 5 ++++
drivers/gpu/ipu-v3/ipu-common.c | 8 +++--
drivers/gpu/ipu-v3/ipu-dc.c | 61 +++-----------------------------------
drivers/gpu/ipu-v3/ipu-dp.c | 15 ++++------
drivers/gpu/ipu-v3/ipu-prv.h | 7 ++++-
include/video/imx-ipu-v3.h | 2 +-
9 files changed, 74 insertions(+), 81 deletions(-)
--
2.11.0
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