Boris Brezillon f66ff55a9b drm/exynos: dsi: Fix bridge chain handling ... Commit 05193dc381 ("drm/bridge: Make the bridge chain a double-linked list") patched the bridge chain logic to use a double-linked list instead of a single-linked list. This change induced changes to the Exynos driver which was manually resetting the encoder->bridge element to NULL to control the enable/disable sequence of the bridge chain. During this conversion, 2 bugs were introduced: 1/ list_splice() was used to move chain elements to our own internal chain, but list_splice() does not reset the source list to an empty state, leading to unexpected bridge hook calls when drm_bridge_chain_xxx() helpers were called by the core. Replacing the list_splice() call by list_splice_init() fixes this problem. 2/ drm_bridge_chain_xxx() helpers operate on the bridge->encoder->bridge_chain list, which is now empty. When the helper uses list_for_each_entry_reverse() we end up with no operation done which is not what we want. But that's even worse when the helper uses list_for_each_entry_from(), because in that case we end up in an infinite loop searching for the list head element which is no longer encoder->bridge_chain but exynos_dsi->bridge_chain. To address that problem we stop using the bridge chain helpers and call the hooks directly. Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> Fixes: 05193dc381 ("drm/bridge: Make the bridge chain a double-linked list") Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191227144124.210294-3-boris.brezillon@collabora.com		2020-01-08 09:09:48 +01:00
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accessibility
acpi	i915 features for v5.6:	2019-12-27 15:25:04 +10:00
amba
android	binder: fix incorrect calculation for num_valid	2019-12-14 09:10:47 +01:00
ata
atm
auxdisplay	drm-misc-next for v5.6:	2019-12-17 13:57:54 +01:00
base	Merge branch 'remove-ksys-mount-dup' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux	2019-12-15 11:36:12 -08:00
bcma
block	xen: branch for v5.5-rc2	2019-12-15 12:24:44 -08:00
bluetooth
bus
cdrom
char
clk
clocksource
connector
counter
cpufreq
cpuidle	cpuidle: Drop unnecessary type cast in cpuidle_poll_time()	2019-12-12 17:56:08 +01:00
crypto
dax
dca
devfreq
dio
dma
dma-buf	drm-misc-next for v5.6:	2020-01-03 11:43:44 +10:00
edac
eisa
extcon
firewire
firmware
fpga
fsi
gnss
gpio
gpu	drm/exynos: dsi: Fix bridge chain handling	2020-01-08 09:09:48 +01:00
greybus
hid	drm-misc-next for v5.6:	2019-12-17 13:57:54 +01:00
hsi
hv
hwmon
hwspinlock
hwtracing
i2c	i2c: remove i2c_new_dummy() API	2019-12-10 23:15:09 +01:00
i3c
ide
idle
iio
infiniband	Pull request for 5.5-rc2	2019-12-15 14:58:13 -08:00
input
interconnect	interconnect: qcom: msm8974: Walk the list safely on node removal	2019-12-12 10:28:54 +01:00
iommu
ipack
irqchip
isdn
leds
lightnvm
macintosh
mailbox
mcb
md	for-linus-20191212	2019-12-13 14:27:19 -08:00
media	drm-misc-next for v5.6:	2019-12-17 13:57:54 +01:00
memory
memstick
message
mfd	mfd: intel_soc_pmic: Rename pwm_backlight pwm-lookup to pwm_pmic_backlight	2019-12-17 11:24:47 +01:00
misc	drm-misc-next for v5.6:	2019-12-17 13:57:54 +01:00
mmc
mtd
mux
net
nfc
ntb
nubus
nvdimm
nvme	for-linus-20191212	2019-12-13 14:27:19 -08:00
nvmem
of	of/platform: Unconditionally pause/resume sync state during kernel init	2019-12-12 18:39:52 -06:00
opp
oprofile
parisc
parport
pci	PCI: rockchip: Fix IO outbound ATU register number	2019-12-12 15:25:37 -06:00
pcmcia
perf
phy
pinctrl
platform
pnp
power
powercap
pps
ps3
ptp
pwm
rapidio
ras
regulator
remoteproc
reset
rpmsg
rtc
s390
sbus
scsi	SCSI fixes on 20191214	2019-12-14 12:51:57 -08:00
sfi
sh
siox
slimbus
soc
soundwire
spi
spmi
ssb
staging	drm-misc-next for v5.6:	2019-12-17 13:57:54 +01:00
target
tc
tee	drm-misc-next for v5.6:	2019-12-17 13:57:54 +01:00
thermal
thunderbolt
tty
uio
usb	USB driver fixes for 5.5-rc2	2019-12-14 12:40:39 -08:00
vfio
vhost
video	video: fbdev: mmp: fix platform_get_irq.cocci warnings	2020-01-08 08:26:39 +01:00
virt
virtio	virtio_balloon: divide/multiply instead of shifts	2019-12-11 08:14:07 -05:00
visorbus
vlynq
vme
w1
watchdog
xen	drm-misc-next for v5.6:	2019-12-17 13:57:54 +01:00
zorro
Kconfig
Makefile