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1b79cfd99f
linux/drivers/gpu/drm/hisilicon/kirin
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John Stultz 1b79cfd99f drm: kirin: Revert "Fix for hikey620 display offset problem" 
This reverts commit ff57c65138.

With the commit ff57c65138 ("drm: kirin: Fix for hikey620
display offset problem") we added support for handling LDI
overflows by resetting the hardware.

However, its been observed that when we do hit the LDI overflow
condition, the irq seems to be screaming, and we do nothing but
stream:
  [drm:ade_irq_handler [kirin_drm]] *ERROR* LDI underflow!
over and over to the screen

I've tried a few appraoches to avoid this, but none has yet
been successful and the cure here is worse then the original
disease, so revert this for now.

Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: Rongrong Zou <zourongrong@gmail.com>
Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Cc: Chen Feng <puck.chen@hisilicon.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel <dri-devel@lists.freedesktop.org>
Fixes: ff57c65138 ("drm: kirin: Fix for hikey620 display offset problem")
Signed-off-by: John Stultz <john.stultz@linaro.org>
Acked-by: Xinliang Liu <xinliang.liu@linaro.org>
Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200303163228.52741-1-john.stultz@linaro.org
2020-03-04 13:29:05 +00:00
..
dw_drm_dsi.c drm: Stop including drm_bridge.h from drm_crtc.h 2019-08-28 22:11:03 +02:00
dw_dsi_reg.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
Kconfig drm: kirin: Remove HISI_KIRIN_DW_DSI config option 2019-08-21 19:15:32 +02:00
kirin_ade_reg.h drm: kirin: Revert "Fix for hikey620 display offset problem" 2020-03-04 13:29:05 +00:00
kirin_drm_ade.c drm: kirin: Revert "Fix for hikey620 display offset problem" 2020-03-04 13:29:05 +00:00
kirin_drm_drv.c drm: kirin: Move ade drm init to kirin drm drv 2019-08-21 19:15:46 +02:00
kirin_drm_drv.h drm: kirin: Move ade drm init to kirin drm drv 2019-08-21 19:15:46 +02:00
Makefile drm: kirin: Remove HISI_KIRIN_DW_DSI config option 2019-08-21 19:15:32 +02:00