Lucas Stach 7d9566fb14 gpu: ipu-v3: pre: don't trigger update if buffer address doesn't change ... [ Upstream commit eb0200a435 ] On a NOP double buffer update where current buffer address is the same as the next buffer address, the SDW_UPDATE bit clears too late. As we are now using this bit to determine when it is safe to signal flip completion to userspace this will delay completion of atomic commits where one plane doesn't change the buffer by a whole frame period. Fix this by remembering the last buffer address and just skip the double buffer update if it would not change the buffer address. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> [p.zabel@pengutronix.de: initialize last_bufaddr in ipu_pre_configure] Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Sasha Levin <sashal@kernel.org>		2019-12-05 09:21:07 +01:00
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Kconfig	gpu: ipu-v3: allow to build with COMPILE_TEST	2017-12-19 12:49:11 +01:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ipu-common.c	gpu: ipu-v3: Fix CSI offsets for imx53	2019-03-23 20:09:41 +01:00
ipu-cpmem.c	drm/imx: ipu-v3 plane offset and IPU id fixes	2018-08-10 11:37:35 +10:00
ipu-csi.c	gpu: ipu-v3: csi: support RGB565 on parallel bus	2018-07-16 16:56:37 +02:00
ipu-dc.c	gpu: ipu-v3: ipu-dc: Remove unused 'di' variable	2017-10-04 12:18:56 +02:00
ipu-di.c	gpu: ipu-di: silence videomode logspam	2016-11-09 10:41:14 +01:00
ipu-dmfc.c	gpu: ipu-v3: Do not wait for DMFC FIFO to clear when disabling DMFC channel	2016-08-29 12:45:05 +02:00
ipu-dp.c	gpu: ipu-v3: dp: fix CSC handling	2019-05-16 19:41:24 +02:00
ipu-ic.c	gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM	2019-07-26 09:14:29 +02:00
ipu-image-convert.c	gpu: ipu-v3: image-convert: Prevent race between run and unprepare	2019-02-12 19:46:57 +01:00
ipu-pre.c	gpu: ipu-v3: pre: don't trigger update if buffer address doesn't change	2019-12-05 09:21:07 +01:00
ipu-prg.c	driver core: Rename flag AUTOREMOVE to AUTOREMOVE_CONSUMER	2018-07-09 12:14:31 +02:00
ipu-prv.h	gpu: ipu-v3: pre: add tiled prefetch support	2017-12-19 12:49:11 +01:00
ipu-smfc.c	…
ipu-vdi.c	gpu: ipu-v3: vdic: include AUTO field order bit in ipu_vdi_set_field_order	2017-06-08 08:57:20 +02:00