linux-uconsole/drivers/gpu
Tao Huang c95036feef PM / devfreq: rockchip_dmc: Fix deadlock between dmcfreq and vop on/off
When change vop status and ddr frequency at the same time,
the following deadlock will happen:

vop no/off                            dmcfreq
vop_crtc_disable                      update_devfreq
->mutex_lock(&vop->vop_lock);         ->mutex_lock(&pd->pmu->mutex);
->pm_runtime_put(vop->dev);           ->mutex_lock(&vop->vop_lock);
  ->mutex_lock(&pd->pmu->mutex);      ...

Use new dmcfreq rwsem to decouple vop and pd driver, and get better
parallelism.

Change-Id: I56a4ee944200826d2a09e3ae8d2f4837f6f769d6
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
2018-05-17 11:43:55 +08:00
..
arm MALI: rockchip: Ensure that set voltage when update devfreq for the first time 2018-05-09 09:25:07 +08:00
drm PM / devfreq: rockchip_dmc: Fix deadlock between dmcfreq and vop on/off 2018-05-17 11:43:55 +08:00
host1x
ipu-v3 drm/imx: Match imx-ipuv3-crtc components using device node in platform data 2016-06-07 18:14:37 -07:00
rogue rk: add SPDX license identifier to files with no license 2018-01-31 20:56:06 +08:00
rogue_m rk: add SPDX license identifier to files with no license 2018-01-31 20:56:06 +08:00
vga
Makefile