[PATCH v2 0/2] drm/rockchip: Optimization vop dpms control
Mark Yao
mark.yao at rock-chips.com
Thu Jan 22 02:29:55 PST 2015
drm dpms have many power modes, ON,OFF,SUSPEND,STANDBY, etc.
but vop only have enable/disable mode, maybe case such bug:
--> DRM_DPMS_ON: power on vop
--> DRM_DPMS_SUSPEND: power off vop
--> DRM_DPMS_OFF: already power off at SUSPEND, crash
so use a bool val is more suitable.
another problem at vop_crtc_dpms:
vop_enable()->drm_vblank_on, drm_vblank_on may call vop
enable vblank. if it happen, vblank enable would failed,
then cause irq status error. because is_enabled value is set
after drm_vblank_on.
Changes in v2:
- fix mistake that set is_enabled wrong.
Mark Yao (2):
drm/rockchip: vop use is_enabled instead of dpms mode
drm/rockchip: vop: set vop enabled after enable iommu
drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c | 2 +-
drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 17 +++++------------
drivers/gpu/drm/rockchip/rockchip_drm_gem.h | 3 +--
3 files changed, 7 insertions(+), 15 deletions(-)
--
1.7.9.5
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