Imre Deak
2cac613be8
drm/i915: vlv: fix DP PHY lockup due to invalid PP sequencer setup
...
Atm we setup the HW panel power sequencer logic both for eDP and DP
ports. On eDP we then go on and start the power on sequence and commence
with link training when it's ready. On DP we don't do the power on
sequencing but do the link training immediately. At this point the DP
PHY block gets stuck, since - supposedly - it is waiting for the power
on sequence to finish. The actual register write that seems to hold off
the PHY is PIPEX_PP_ON_DELAYS[Panel Control Port Select]. Writing here
a non-0 value eventually sets PIPEX_PP_STATUS[Require Asset Status] to
1 and blocks the PHY until the panel power on is ready.
Fix this by not doing any PP sequencing setup for DP ports.
Thanks to Ville Syrjälä, Jesse Barnes and Todd Previte for the help in
tracking this down.
Note that on older gmch platforms (where we have lvds instead of edp)
we've hacked around this by writing the magic ABCD unlock key to PP
registers, which disables the hw sanity checks.
For edp all platforms thus far had the pch split, with the edp port in
the north display complex and the PP registers on the pch the hw
sanity checks (expressed through the "Require Asset Status" bit) was
never functional, hence never a real issue.
This regression has been introduce in
commit bf13e81b90
Author: Jani Nikula <jani.nikula@intel.com>
Date: Fri Sep 6 07:40:05 2013 +0300
drm/i915: add support for per-pipe power sequencing on vlv
Signed-off-by: Imre Deak <imre.deak@intel.com>
[danvet: Add note about the bigger story here.]
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-30 17:47:34 +01:00
..
accessibility
acpi
Merge branches 'acpi-battery' and 'pm-cpufreq'
2014-01-06 22:49:08 +01:00
amba
ata
Merge branch 'for-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
2014-01-09 09:08:23 +08:00
atm
atm: idt77252: fix dev refcnt leak
2013-11-19 15:53:02 -05:00
auxdisplay
base
Revert "cpufreq: suspend governors on system suspend/hibernate"
2013-12-08 01:04:17 +01:00
bcma
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2013-11-13 17:40:34 +09:00
block
block: null_blk: fix queue leak inside removing device
2014-01-12 16:22:42 +07:00
bluetooth
Bluetooth: Add support for Toshiba Bluetooth device [0930:0220]
2013-12-04 11:11:49 -02:00
bus
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2013-11-14 08:51:29 +09:00
cdrom
char
Merge commit origin/master into drm-intel-next
2014-01-16 22:06:30 +01:00
clk
Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
2014-01-20 10:21:54 +10:00
clocksource
clocksource: dw_apb_timer_of: Fix support for dts binding "snps,dw-apb-timer"
2013-12-10 19:49:18 +01:00
connector
connector: improved unaligned access error fix
2013-11-14 17:19:20 -05:00
cpufreq
intel_pstate: Add X86_FEATURE_APERFMPERF to cpu match parameters.
2014-01-06 22:16:14 +01:00
cpuidle
ARM/cpuidle: remove __init tag from Calxeda cpuidle probe function
2013-12-30 11:55:20 +01:00
crypto
crypto: ixp4xx - Fix kernel compile error
2014-01-01 14:06:23 +08:00
dca
devfreq
dio
dma
Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
2014-01-20 10:21:54 +10:00
edac
sb_edac: Shut up compiler warning when EDAC_DEBUG is enabled
2013-11-30 12:26:36 +01:00
eisa
extcon
extcon: remove freed groups caused the panic or warning in unregister flow
2013-11-26 15:17:23 +09:00
firewire
firewire: sbp2: bring back WRITE SAME support
2013-12-15 16:32:32 +01:00
firmware
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-12-29 13:35:04 -08:00
fmc
gpio
GPIO fixes for the v3.13 development cycle:
2013-12-17 11:47:40 -08:00
gpu
drm/i915: vlv: fix DP PHY lockup due to invalid PP sequencer setup
2014-01-30 17:47:34 +01:00
hid
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
2013-12-13 13:21:28 -08:00
hsi
hv
hwmon
hwmon fixes for 3.13-rc4
2013-12-12 11:05:19 -08:00
hwspinlock
i2c
ARM: tegra: implement common DMA and resets DT bindings
2013-12-17 18:09:16 +01:00
ide
More ACPI and power management updates for 3.13-rc1
2013-11-20 13:25:04 -08:00
idle
intel_idle: close avn_cstates array with correct marker
2014-01-10 03:06:06 +01:00
iio
iio:adc:ad7887 Fix channel reported endianness from cpu to big endian
2013-12-17 20:37:14 +00:00
infiniband
infiniband: make sure the src net is infiniband when create new link
2014-01-03 20:38:56 -05:00
input
Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
2014-01-20 10:21:54 +10:00
iommu
iommu/arm-smmu: fix error return code in arm_smmu_device_dt_probe()
2013-12-06 16:44:25 +00:00
ipack
irqchip
Renesas ARM based SoC fixes for v3.13
2013-12-20 11:28:30 -08:00
isdn
isdn: Drop big endian cpp checks from telespci and hfc_pci drivers
2014-01-06 15:50:51 -05:00
leds
leds: lp5521/5523: Remove duplicate mutex
2014-01-10 14:48:07 -08:00
lguest
macintosh
powerpc/windfarm: Fix XServe G5 fan control Makefile issue
2013-11-27 11:35:47 +11:00
mailbox
md
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
2013-12-24 10:06:03 -08:00
media
[media] videobuf2-dma-sg: fix possible memory leak
2013-12-10 05:40:57 -02:00
memory
memstick
tree-wide: use reinit_completion instead of INIT_COMPLETION
2013-11-15 09:32:21 +09:00
message
drivers/message/i2o/driver.c: add missing destroy_workqueue() on error in i2o_driver_register()
2013-11-13 12:09:26 +09:00
mfd
This is the 2nd MFD pull request for 3.13
2014-01-11 06:23:57 +07:00
misc
Char/Misc driver fixes for 3.13-rc3
2013-12-08 18:47:25 -08:00
mmc
mmc: omap: Fix I2C dependency and make driver usable with device tree
2013-11-26 15:51:16 -08:00
mtd
Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
2014-01-06 12:20:45 +11:00
net
qlcnic: Fix ethtool statistics length calculation
2014-01-10 13:25:29 -05:00
nfc
ntb
NTB driver bug fixes to address a missed call to pci_enable_msix,
2013-11-26 11:15:12 -08:00
nubus
of
Merge remote-tracking branch 'grant/devicetree/merge' into dt-fixes
2013-12-30 12:09:47 -06:00
oprofile
parisc
parport
Kconfig cleanups for v3.13
2013-11-15 14:05:15 -08:00
pci
Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
2014-01-20 10:21:54 +10:00
pcmcia
DeviceTree updates for 3.13. This is a bit larger pull request than
2013-11-12 16:52:17 +09:00
phy
phy: kconfig: add depends on "USB_PHY" to OMAP_USB2 and TWL4030_USB
2013-12-10 12:53:30 -08:00
pinctrl
Merge branches 'powercap' and 'acpi-lpss' with new device IDs
2013-12-27 00:43:24 +01:00
platform
sony-laptop: do not scribble keyboard backlight registers on resume
2013-11-26 13:03:36 +09:00
pnp
PNP: fix restoring devices after hibernation
2013-12-05 02:01:55 +01:00
power
max17042_battery: Fix build errors caused by missing REGMAP_I2C config
2013-12-01 14:25:03 -08:00
powercap
powercap / RAPL: add support for ValleyView Soc
2013-12-22 01:27:51 +01:00
pps
drivers/pps/clients/pps-gpio.c: remove redundant of_match_ptr
2013-11-13 12:09:35 +09:00
ps3
ptp
pwm
rapidio
regulator
mfd: s2mps11: Fix build after regmap field rename in sec-core.c
2013-12-16 11:30:39 +00:00
remoteproc
reset
rpmsg
rtc
mfd/rtc: s5m: fix register updating by adding regmap for RTC
2013-12-12 18:19:26 -08:00
s390
s390/3270: fix allocation of tty3270_screen structure
2013-12-18 17:35:30 +01:00
sbus
scsi
qla2xxx: Fix scsi_host leak on qlt_lport_register callback failure
2013-12-19 14:50:17 -08:00
sfi
sh
sn
spi
spi: tegra: checking for ERR_PTR instead of NULL
2013-12-16 09:51:58 -07:00
ssb
staging
Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
2014-01-20 10:21:54 +10:00
target
target: Remove extra percpu_ref_init
2013-12-19 14:49:54 -08:00
tc
thermal
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2013-11-19 15:50:47 -08:00
tty
Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
2014-01-20 10:21:54 +10:00
uio
uio: we cannot mmap unaligned page contents
2013-12-02 11:50:37 -08:00
usb
Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
2014-01-20 10:21:54 +10:00
uwb
vfio
vhost
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2013-11-22 10:52:03 -08:00
video
video/fb: Propagate error code from failing to unregister conflicting fb
2013-12-18 10:56:13 +10:00
virt
virtio
virtio_balloon: update_balloon_size(): update correct field
2013-12-05 13:12:39 +10:30
vlynq
vme
w1
drivers/w1/masters/w1-gpio.c: use dev_get_platdata()
2013-11-15 09:32:21 +09:00
watchdog
sc1200_wdt: Fix oops
2013-12-10 08:48:15 +01:00
xen
Bug-fixes:
2013-12-20 09:34:54 -08:00
zorro
Kconfig
ACPI and power management updates for 3.13-rc1
2013-11-14 13:41:48 +09:00
Makefile
ACPI and power management updates for 3.13-rc1
2013-11-14 13:41:48 +09:00