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5702105984
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Jesse Barnes 5702105984 drm/i915/vlv: assert and de-assert sideband reset at boot and resume v3 
This is a bit like the CMN reset de-assert we do in DPIO_CTL, except
that it resets the whole common lane section of the PHY.  This is
required on machines where the BIOS doesn't do this for us on boot or
resume to properly re-calibrate and get the PHY ready to transmit data.

Without this patch, such machines won't resume correctly much of the time,
with the symptom being a 'port ready' timeout and/or a link training
failure.

Note that simply asserting reset at suspend and de-asserting at resume
is not sufficient, nor is simply de-asserting at boot.  Both of these
cases have been tested and have still been found to have failures on
some configurations.

v2: extract simpler set_power_well function for use in reset_dpio (Imre)
    move to reset_dpio (Daniel & Ville)
v3: don't reset if DPIO reset is already de-asserted (Imre)

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-06-05 08:52:34 +02:00
..
accessibility
acpi Merge branches 'pnp' and 'acpi-hotplug' 2014-04-26 00:40:25 +02:00
amba ARM: SoC: driver changes 2014-04-05 15:37:40 -07:00
ata Merge branch 'for-3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2014-04-24 09:57:02 -07:00
atm atm: idt77105: Use del_timer_sync() in exit path 2014-03-25 21:06:02 -04:00
auxdisplay
base of/irq: do irq resolution in platform_get_irq 2014-04-24 21:40:22 +01:00
bcma bcma: gpio: register 32 GPIOs on BCM5357 2014-03-27 14:20:04 -04:00
block Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-04-12 14:49:50 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-04-02 20:53:45 -07:00
bus ARM: SoC: driver changes 2014-04-05 15:37:40 -07:00
cdrom
char TTY/Serial driver fixes for 3.15-rc2 2014-04-18 16:57:53 -07:00
clk ARM Versatile Express fixes for 3.15 2014-04-24 23:46:58 +02:00
clocksource clocksource: Exynos_mct: Register clock event after request_irq() 2014-04-17 23:36:28 +02:00
connector Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-04-02 20:53:45 -07:00
cpufreq cpufreq: highbank: fix ARM_HIGHBANK_CPUFREQ dependency warning 2014-04-22 00:09:09 +02:00
cpuidle Merge branch 'pm-cpuidle' 2014-04-08 13:27:40 +02:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2014-04-03 09:28:16 -07:00
dca
devfreq PM / devfreq: Rewrite devfreq_update_status() to fix multiple bugs 2014-03-21 11:16:30 +09:00
dio
dma dma: fix eDMA driver as a subsys_initcall 2014-04-16 12:03:47 +05:30
edac Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2014-04-04 09:50:07 -07:00
eisa
extcon extcon: Move OF helper function to extcon core and change function name 2014-03-19 14:41:58 +09:00
firewire
firmware Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-04-11 11:58:33 -07:00
fmc
gpio A few fixes for the GPIO tree: 2014-04-22 09:28:02 -07:00
gpu drm/i915/vlv: assert and de-assert sideband reset at boot and resume v3 2014-06-05 08:52:34 +02:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2014-04-18 10:31:34 -07:00
hsi
hv Drivers: hv: vmbus: Negotiate version 3.0 when running on ws2012r2 hosts 2014-04-16 14:14:07 -07:00
hwmon hwmon: (ltc2945) Don't crash the kernel unnecessarily 2014-04-24 06:09:43 -07:00
hwspinlock
i2c Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2014-04-09 08:45:40 -07:00
ide
idle intel_idle: fix IVT idle state table setting 2014-04-21 23:36:07 +02:00
iio First found of IIO fixes for the 3.15 cycle. 2014-04-22 21:29:20 -07:00
infiniband InfiniBand/RDMA updates for 3.15-rc2: 2014-04-18 13:49:42 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2014-04-23 07:48:03 -07:00
iommu Merge git://git.infradead.org/iommu-2.6 into iommu/fixes 2014-04-16 16:09:40 +02:00
ipack
irqchip Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-04-27 11:21:03 -07:00
isdn isdn: icn: buffer overflow in icn_command() 2014-04-16 15:24:15 -04:00
leds Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 2014-04-10 09:06:10 -07:00
lguest drivers/lguest/page_tables.c: rename do_set_pte() 2014-04-07 16:35:52 -07:00
macintosh
mailbox
mcb drivers: mcb: fix memory leak in chameleon_parse_cells() error path 2014-04-16 12:28:47 -07:00
md One BUG fix for md for recent commit 2014-04-17 10:51:01 -07:00
media platform: Fix timberdale dependencies 2014-04-16 11:57:27 +05:30
memory
memstick
message PCI changes for the v3.15 merge window: 2014-04-01 15:14:04 -07:00
mfd MMC highlights for 3.15: 2014-04-09 08:39:39 -07:00
misc misc: Grammar s/addition/additional/ 2014-04-16 12:28:47 -07:00
mmc MMC highlights for 3.15: 2014-04-09 08:39:39 -07:00
mtd Shiraz has moved 2014-04-18 16:40:08 -07:00
net Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2014-04-18 18:29:44 -04:00
nfc
ntb ntb: Use pci_enable_msix_range() instead of pci_enable_msix() 2014-04-07 10:59:20 -07:00
nubus
of of/irq: do irq resolution in platform_get_irq 2014-04-24 21:40:22 +01:00
oprofile oprofile, nmi-timer: Fix CPU hotplug callback registration 2014-03-20 13:43:46 +01:00
parisc
parport
pci PCI: tegra: Use new OF interrupt mapping when possible 2014-04-16 10:24:32 -06:00
pcmcia PCI changes for the v3.15 merge window: 2014-04-01 15:14:04 -07:00
phy phy: fix kernel oops in phy_lookup() 2014-04-24 12:53:38 -07:00
pinctrl pinctrl: Rename Broadcom Capri pinctrl driver 2014-04-14 09:39:33 +02:00
platform alienware-wmi: cover some scenarios where memory allocations would fail 2014-04-10 12:11:56 -04:00
pnp PNP: Work around BIOS defects in Intel MCH area reporting 2014-04-24 02:39:40 +02:00
power power/reset: vexpress: Fix restart/power off operation 2014-04-24 17:20:50 +01:00
powercap CPU hotplug notifiers registration fixes for 3.15-rc1 2014-04-07 14:55:46 -07:00
pps
ps3
ptp net: ptp: move PTP classifier in its own file 2014-04-01 16:43:18 -04:00
pwm Shiraz has moved 2014-04-18 16:40:08 -07:00
rapidio rapidio: rework device hierarchy and introduce mport class of devices 2014-04-07 16:36:07 -07:00
regulator regulator: pbias: Convert to use regmap helper functions 2014-04-14 22:16:25 +01:00
remoteproc
reset Merge branch 'reset/for_v3.15' of git://git.pengutronix.de/git/pza/linux into next/drivers 2014-03-27 01:28:19 +01:00
rpmsg
rtc ARM: SoC: driver changes 2014-04-05 15:37:40 -07:00
s390 s390/sclp_cmd: replace PTR_RET with PTR_ERR_OR_ZERO 2014-04-11 13:53:42 +02:00
sbus
scsi [SCSI] More USB deadlock fixes 2014-04-21 14:28:40 -07:00
sfi
sh ARM: SoC: sh driver changes 2014-04-05 15:38:41 -07:00
sn
spi Merge remote-tracking branches 'spi/fix/atmel', 'spi/fix/bfin5xx', 'spi/fix/hspi' and 'spi/fix/sirf' into spi-linus 2014-04-23 13:50:18 +01:00
spmi
ssb
staging Merge tag 'topic/core-stuff-2014-06-02' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-06-04 15:47:41 +10:00
target Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-04-12 17:31:22 -07:00
tc
thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2014-04-10 09:15:46 -07:00
tty serial_core: fix uart PORT_UNKNOWN handling 2014-04-24 15:38:22 -07:00
uio
usb usb: option: add and update a number of CMOTech devices 2014-04-25 11:35:04 -07:00
uwb uwb: don't call spin_unlock_irq in a USB completion handler 2014-04-24 12:45:40 -07:00
vfio VFIO updates for v3.15 include: 2014-04-03 14:05:02 -07:00
vhost Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2014-04-12 16:51:08 -07:00
video video: Kconfig: move drm and fb into separate menus 2014-04-17 08:10:20 +03:00
virt
virtio
vlynq
vme vme_tsi148: Utilize to_pci_dev() macro 2014-04-16 14:08:37 -07:00
w1 w1: avoid recursive device_add 2014-04-16 14:07:51 -07:00
watchdog CPU hotplug notifiers registration fixes for 3.15-rc1 2014-04-07 14:55:46 -07:00
xen Xen regression and bug fixes for 3.15-rc1. 2014-04-17 10:54:07 -07:00
zorro
Kconfig
Makefile video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00