linux/drivers/gpu/drm/arm
Liviu Dudau 0735cfdf0a drm/mali-dp: Improve writeback handling for DP500.
Mali DP500 operates in continuous writeback mode (writes frame content
until stopped) and it needs special handling in order to behave like
a one-shot writeback engine. The original state machine added for DP500
was a bit fragile, as it did not handle correctly cases where a new
atomic commit was in progress when the SE IRQ happens and it would
commit some partial updates.

Improve the handling by adding a parameter to the set_config_valid()
function to clear the config valid bit in hardware before starting a
new commit and by introducing a MW_RESTART state in the writeback
state machine to cater for the case where a new writeback commit
gets submitted while the last one is still being active.

Reported-by: Brian Starkey <brian.starkey@arm.com>
Reviewed-by: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-05 15:19:04 +01:00
..
hdlcd_crtc.c drm: Don't pass clip to drm_atomic_helper_check_plane_state() 2018-03-05 20:48:25 +02:00
hdlcd_drv.c Merge tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-12-04 05:42:49 +10:00
hdlcd_drv.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hdlcd_regs.h
Kconfig drm/arm: make fbdev support really optional 2016-07-18 09:11:42 +02:00
Makefile drm: mali-dp: Add writeback connector 2018-07-05 15:19:03 +01:00
malidp_crtc.c drm: mali-dp: Add writeback connector 2018-07-05 15:19:03 +01:00
malidp_drv.c drm/mali-dp: Improve writeback handling for DP500. 2018-07-05 15:19:04 +01:00
malidp_drv.h drm: mali-dp: Add writeback connector 2018-07-05 15:19:03 +01:00
malidp_hw.c drm/mali-dp: Improve writeback handling for DP500. 2018-07-05 15:19:04 +01:00
malidp_hw.h drm/mali-dp: Improve writeback handling for DP500. 2018-07-05 15:19:04 +01:00
malidp_mw.c drm: mali-dp: Add writeback connector 2018-07-05 15:19:03 +01:00
malidp_mw.h drm: mali-dp: Add writeback connector 2018-07-05 15:19:03 +01:00
malidp_planes.c drm/mali-dp: Rectify the width and height passed to rotmem_required() 2018-06-18 18:08:43 +01:00
malidp_regs.h drm/mali-dp: Add writeback support for DP500. 2018-07-05 15:19:02 +01:00