android_kernel_oneplus_msm8998/drivers/gpu/drm/rockchip
Brian Norris 985ee65d55 Revert "drm/rockchip: Allow driver to be shutdown on reboot/kexec"
commit 63238173b2faf3d6b85a416f1c69af6c7be2413f upstream.

This reverts commit 7f3ef5dedb146e3d5063b6845781ad1bb59b92b5.

It causes new warnings [1] on shutdown when running the Google Kevin or
Scarlet (RK3399) boards under Chrome OS. Presumably our usage of DRM is
different than what Marc and Heiko test.

We're looking at a different approach (e.g., [2]) to replace this, but
IMO the revert should be taken first, as it already propagated to
-stable.

[1] Report here:
http://lkml.kernel.org/lkml/20181205030127.GA200921@google.com

WARNING: CPU: 4 PID: 2035 at drivers/gpu/drm/drm_mode_config.c:477 drm_mode_config_cleanup+0x1c4/0x294
...
 Call trace:
  drm_mode_config_cleanup+0x1c4/0x294
  rockchip_drm_unbind+0x4c/0x8c
  component_master_del+0x88/0xb8
  rockchip_drm_platform_remove+0x2c/0x44
  rockchip_drm_platform_shutdown+0x20/0x2c
  platform_drv_shutdown+0x2c/0x38
  device_shutdown+0x164/0x1b8
  kernel_restart_prepare+0x40/0x48
  kernel_restart+0x20/0x68
...
 Memory manager not clean during takedown.
 WARNING: CPU: 4 PID: 2035 at drivers/gpu/drm/drm_mm.c:950 drm_mm_takedown+0x34/0x44
...
  drm_mm_takedown+0x34/0x44
  rockchip_drm_unbind+0x64/0x8c
  component_master_del+0x88/0xb8
  rockchip_drm_platform_remove+0x2c/0x44
  rockchip_drm_platform_shutdown+0x20/0x2c
  platform_drv_shutdown+0x2c/0x38
  device_shutdown+0x164/0x1b8
  kernel_restart_prepare+0x40/0x48
  kernel_restart+0x20/0x68
...

[2] https://patchwork.kernel.org/patch/10556151/
    https://www.spinics.net/lists/linux-rockchip/msg21342.html
    [PATCH] drm/rockchip: shutdown drm subsystem on shutdown

Fixes: 7f3ef5dedb14 ("drm/rockchip: Allow driver to be shutdown on reboot/kexec")
Cc: Jeffy Chen <jeffy.chen@rock-chips.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Vicente Bergas <vicencb@gmail.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: stable@vger.kernel.org
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20181205181657.177703-1-briannorris@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-21 14:09:51 +01:00
..
dw_hdmi-rockchip.c drm: rockchip/dw_hdmi-rockchip: improve for HDMI electrical test 2015-04-01 10:54:13 +01:00
Kconfig drm: rockchip: add reset controller dependency 2015-01-31 10:11:48 +10:00
Makefile
rockchip_drm_drv.c Revert "drm/rockchip: Allow driver to be shutdown on reboot/kexec" 2018-12-21 14:09:51 +01:00
rockchip_drm_drv.h
rockchip_drm_fb.c drm/rockchip: only call drm_fb_helper_hotplug_event if fb_helper present 2015-07-13 13:50:52 +08:00
rockchip_drm_fb.h
rockchip_drm_fbdev.c drm/rockchip: Use new drm_fb_helper functions 2015-08-06 14:12:56 +02:00
rockchip_drm_fbdev.h
rockchip_drm_gem.c drm/rockchip: Respect page offset for PRIME mmap calls 2018-05-30 07:49:16 +02:00
rockchip_drm_gem.h drm/rockchip: Only alloc a kmap for fbdev gem object 2015-03-16 10:07:12 +08:00
rockchip_drm_vop.c drm/rockchip: Use CRTC vblank event interface 2015-12-02 10:22:21 +08:00
rockchip_drm_vop.h drm/rockchip: vop: support plane scale 2015-08-26 14:16:26 +08:00