Daniel Vetter fba92150aa drm/i915: rip out early dp port write for gm45/ilk ... It's bogus. If I've followed the history of this piece of code correctly, i.e. the initial register write with the following vblank wait, this goes all the way back to the original enabling of DP support in commit a4fc5ed698 Author: Keith Packard <keithp@keithp.com> Date: Tue Apr 7 16:16:42 2009 -0700 drm/i915: Add Display Port support Unfortunately it seems to be nothing more than glorified duct-tape and sometimes actively harmful. Adam Jackson noticed this for CPT platforms with commit e85194641b Author: Adam Jackson <ajax@redhat.com> Date: Thu Jul 21 17:48:38 2011 -0400 drm/i915/dp: Don't turn CPT DP ports on too early Unfortunately this kept the code around for ilk and gm45. The specific failure case I'm seeing here is that after a dpms off/on cycle we have the bits from the last link training (hopefully successful link training) set in intel_dp->DP. This is requiered so that complete_link_train can enable the port with the right tuning values. Unfortunately writing these again to the disabled port at dpms on time kills the port somehow until it's disabled - dp link training fails in an endless loop without this patch on my mobile ilk and gm45. Cc: Chris Wilson <chris@chris-wilson.co.uk> Tested-by: Chris Wilson <chris@chris-wilson.co.uk> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=51493 Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>		2012-09-20 14:23:02 +02:00
..
accessibility
acpi	Merge branch 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux into drm-fixes	2012-08-22 09:18:49 +10:00
amba	Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm	2012-07-27 15:14:26 -07:00
ata	libata: Add a space to " 2GB ATA Flash Disk" DMA blacklist entry	2012-08-25 10:16:45 -04:00
atm	drivers/atm/iphase.c: fix error return code	2012-08-06 13:29:57 -07:00
auxdisplay
base	dmesg fix for 3.6-rc3	2012-08-20 13:13:47 -07:00
bcma	bcma: BCM43228 support	2012-08-02 13:51:46 -04:00
block	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2012-08-25 11:36:43 -07:00
bluetooth	Bluetooth: add support for atheros 0489:e057	2012-08-06 15:33:05 -03:00
cdrom
char	drm/i915: Replace the array of pages with a scatterlist	2012-09-20 14:22:57 +02:00
clk	clk: validate pointer in __clk_disable()	2012-07-30 17:25:13 -07:00
clocksource	cs5535-clockevt: typo, it's MFGPT, not MFPGT	2012-08-21 16:45:02 -07:00
connector
cpufreq	Merge branch 'imx/fixes-for-3.6' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes	2012-08-23 17:02:42 +02:00
cpuidle	cpuidle: Prevent null pointer dereference in cpuidle_coupled_cpu_notify	2012-08-17 19:37:08 +02:00
crypto	Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2012-08-23 21:58:04 -07:00
dca
devfreq
dio
dma	dma: tegra: enable/disable dma clock	2012-08-13 10:15:22 +05:30
edac	Merge branch 'devel'	2012-07-29 21:11:05 -03:00
eisa
extcon	extcon: extcon_gpio: Replace gpio_request_one by devm_gpio_request_one	2012-08-16 10:29:08 -07:00
firewire	- Small fixes and optimizations.	2012-07-30 09:32:39 -07:00
firmware	This patch series contains a major revamp of how we collect entropy	2012-07-31 19:07:42 -07:00
gpio	GPIO: gpio-pxa: fix building without CONFIG_OF	2012-08-14 07:50:36 +03:00
gpu	drm/i915: rip out early dp port write for gm45/ilk	2012-09-20 14:23:02 +02:00
hid	Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid	2012-08-23 21:45:54 -07:00
hsi
hv	This patch series contains a major revamp of how we collect entropy	2012-07-31 19:07:42 -07:00
hwmon	hwmon: (asus_atk0110) Add quirk for Asus M5A78L	2012-08-22 22:33:31 -07:00
hwspinlock
i2c	i2c: tegra: protect suspend/resume callbacks with CONFIG_PM_SLEEP	2012-08-18 20:45:09 +02:00
ide	ide: fix generic_ide_suspend/resume Oops	2012-08-21 14:54:42 -07:00
idle	intel_idle: Check cpu_idle_get_driver() for NULL before dereferencing it.	2012-08-17 19:37:14 +02:00
ieee802154
iio	iio: lm3533-als: Fix build warnings	2012-08-16 20:24:38 +01:00
infiniband	Merge branches 'cma', 'ipoib', 'misc', 'mlx4', 'ocrdma', 'qib' and 'srp' into for-next	2012-08-16 09:38:39 -07:00
input	Input: eeti_ts: pass gpio value instead of IRQ	2012-08-09 15:16:41 +02:00
iommu	iommu/amd: Fix wrong check for ARRAY_SIZE()	2012-08-10 11:34:08 +02:00
isdn	mISDN: Bugfix for layer2 fixed TEI mode	2012-08-06 13:22:50 -07:00
leds	leds: renesas: fix error handling	2012-08-13 14:34:02 +08:00
lguest
macintosh
md	md/raid10: fix problem with on-stack allocation of r10bio structure.	2012-08-18 09:51:42 +10:00
media	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media	2012-08-21 16:54:38 -07:00
memory
memstick
message	drivers/message/i2o/i2o_config.c: bound allocation	2012-07-30 17:25:17 -07:00
mfd	More USB patches for 3.6-rc3	2012-08-20 13:14:22 -07:00
misc	drivers/misc/sgi-xp/xpc_uv.c: SGI XPC fails to load when cpu 0 is out of IRQ resources	2012-08-21 16:45:03 -07:00
mmc	Merge branch 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm	2012-08-01 16:41:07 -07:00
mtd	arm-soc: bug fixes for v3.6-rc2	2012-08-12 21:31:44 +03:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-08-21 16:46:08 -07:00
nfc
nubus
of	dt: introduce for_each_available_child_of_node, of_get_next_available_child	2012-08-20 02:16:00 -07:00
oprofile
parisc	PCI changes for the 3.6 merge window:	2012-07-24 16:17:07 -07:00
parport
pci	PCI: EHCI: Fix crash during hibernation on ASUS computers	2012-08-15 11:51:19 -06:00
pcmcia	Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm	2012-07-27 15:14:26 -07:00
pinctrl	pinctrl/nomadik: add kp_b_2 keyboard function group list	2012-08-17 11:09:58 +02:00
platform	ideapad: add Lenovo IdeaPad Z570 support (part 3)	2012-08-20 12:44:41 -04:00
pnp
power	Merge branch 'for-linus-3.6' of git://dev.laptop.org/users/dilinger/linux-olpc	2012-08-02 11:52:39 -07:00
pps	pps: return PTR_ERR on error in device_create	2012-07-30 17:25:21 -07:00
ps3
ptp
pwm	pwm: Improve Kconfig help text	2012-08-20 11:58:43 +02:00
rapidio	rapidio/tsi721: fix unused variable compiler warning	2012-08-21 16:45:03 -07:00
regulator	regulator: twl-regulator: fix up VINTANA1/VINTANA2	2012-08-15 17:19:01 +01:00
remoteproc	A batch of remoteproc patches for 3.6:	2012-07-26 16:19:08 -07:00
rpmsg	A batch of remoteproc patches for 3.6:	2012-07-26 16:19:08 -07:00
rtc	drivers/rtc/rtc-rs5c348.c: fix hour decoding in 12-hour mode	2012-08-21 16:45:03 -07:00
s390	s390/sclp_sdias: Add missing break and "fall through"	2012-08-08 07:32:55 -07:00
sbus
scsi	Merge branch 'for-3.6/core' of git://git.kernel.dk/linux-block	2012-08-01 09:02:41 -07:00
sfi
sh	sh: intc: Handle domain association for sparseirq pre-allocated vectors.	2012-08-09 13:21:05 +09:00
sn
spi	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2012-08-25 11:45:04 -07:00
ssb
staging	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next	2012-08-27 16:22:20 +10:00
target	target: Remove unused se_cmd.cmd_spdtl	2012-08-21 14:27:35 -07:00
tc
thermal	The tag contains just a few battery-related changes for v3.6. It's is	2012-07-31 18:08:25 -07:00
tty	pmac_zilog,kdb: Fix console poll hook to return instead of loop	2012-08-16 12:20:20 -07:00
uio
usb	More USB patches for 3.6-rc3	2012-08-20 13:14:22 -07:00
uwb
vfio	vfio: grab vfio_device reference *before* exposing the sucker via fd_install()	2012-08-22 10:26:42 -04:00
vhost	tcm_vhost: Fix vhost_scsi_target structure alignment	2012-08-20 14:52:11 -07:00
video	fbcon: fix race condition between console lock and cursor timer (v1.1)	2012-08-22 14:00:35 +10:00
virt
virtio	[SCSI] virtio-scsi: Add vdrv->scan for post VIRTIO_CONFIG_S_DRIVER_OK LUN scanning	2012-07-20 08:59:03 +01:00
vlynq
vme
w1	1-Wire: Add support for the maxim ds1825 temperature sensor	2012-08-16 12:33:59 -07:00
watchdog	booke/wdt: some ioctls do not return values properly	2012-08-17 09:03:51 -05:00
xen	Three bug-fixes:	2012-08-25 17:31:59 -07:00
zorro
Kconfig	vfio: VFIO core	2012-07-31 08:16:22 -06:00
Makefile	vfio: VFIO core	2012-07-31 08:16:22 -06:00