| Commit message (Collapse) | Author | Age | Files | Lines |
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git://people.freedesktop.org/~danvet/drm-intel into drm-fixes
Just a small pile of fixes for bugs and a few regressions. I'm still
trying to track down a driver load hang on my g33 (which infuriatingly
doesn't happen when loading the module manually after boot), somehow
bisecting loves to go astray on this one :( And there's a (harmless)
locking WARN in the suspend code due to one of Jesse's vlv backlight
rework patches. Otherwise nothing outstanding afaik.
* tag 'drm-intel-fixes-2013-11-20' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: Fix gen3 self-refresh watermarks
drm/i915: Replicate BIOS eDP bpp clamping hack for hsw
drm/i915: Do not enable package C8 on unsupported hardware
drm/i915: Hold pc8 lock around toggling pc8.gpu_idle
drm/i915: encoder->get_config is no longer optional
drm/i915/tv: add ->get_config callback
drm/i915: restore the early forcewake cleanup
Partially revert "drm/i915: tune the RC6 threshold for stability"
drm/i915: flush cursors harder
i915: Use 120MHz LVDS SSC clock for gen5/gen6/gen7
x86/early quirk: use gen6 stolen detection for VLV
drm/i915/dp: set sink to power down mode on dp disable
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This regression has been introduced in
commit 4fe8590a921d0b2e36e542dbfa89a8c5993f5a3f
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Wed Sep 4 18:25:22 2013 +0300
drm/i915: Use adjusted_mode appropriately when computing watermarks
I guess we should renable the enabled local variable into something a
notch more descriptive, but that's something for -next.
The effect on my i945gme netbook is pretty severe amounts of underruns
- usually the very first pixel gets used for the entire screeen.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Haswell's DDI encoders have their own ->get_config callback and in
commit c6cd2ee2d59111a07cd9199564c9bdcb2d11e5cf
Author: Jani Nikula <jani.nikula@intel.com>
Date: Mon Oct 21 10:52:07 2013 +0300
drm/i915/dp: workaround BIOS eDP bpp clamping issue
we've forgotten to replicate this hack. So let's do it that.
Note for backporters: The above commit and all it's depencies need to
be backported first.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71049
Cc: stable@vger.kernel.org
Tested-by: Gökçen Eraslan <gokcen.eraslan@gmail.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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If the hardware does not support package C8, then do not even schedule
work to enable it. Thereby we can eliminate a bunch of dangerous work.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We need to hold the pc8 lock around toggling the value of gpu_idle.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We must have one to fill out the adjusted_mode.crtc_clock. And with
the tv encoder fixed up every encoder we have has a ->get_config
callback. So we can drop the checks.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We need this to properly fill in adjusted_mode.crtc_clock, otherwise
the state checker gets unhappy. This seems to have been forgotten in
the big clock rework in
commit 18442d08786472c63a0a80c27f92b033dffc26de
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Fri Sep 13 16:00:08 2013 +0300
drm/i915: Fix port_clock and adjusted_mode.clock readout all over
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Some BIOS just leak the forcewak bits, which we clean up.
Unfortunately this has been broken in
commit 521198a2e7095c8c7daa8d7d3a76a110c346be6f
Author: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Date: Fri Aug 23 16:52:30 2013 +0300
drm/i915: sanitize forcewake registers on reset
To make this work both for resets and for BIOS takeover just add the
forcewake clearing call back to intel_uncore_early_sanitize.
We need to clear the forcewake in early sanitize so that the forcewak
dance in intel_uncore_init (to figure out whether we have mt or legacy
forcewake on ivb) works. That cleanup fits in nicely with the general
topic of early_sanitize to prepare for the very first mmio ops.
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reported-by: Jörg Otte <jrg.otte@gmail.com>
Cc: Jörg Otte <jrg.otte@gmail.com>
References: https://lkml.org/lkml/2013/11/16/40
Cc: stable@vger.kernel.org (for 3.12 only)
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This reverts commit 351aa5666d02062b52329bcfe4bcf9d1f882fba9.
It breaks rc6 on at least one snb machine. Since we don't yet have a
report for ivb let's keep it there for now.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71656
Cc: Stéphane Marchesin <marcheu@chromium.org>
Cc: erik@vontaene.de
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Apparently they need the same treatment as primary planes. This fixes
modesetting failures because of stuck cursors (!) on Thomas' i830M
machine.
I've figured while at it I'll also roll it out for the ivb 3 pipe
version of this function. I didn't do this for i845/i865 since Bspec
says the update mechanism works differently, and there's some
additional rules about what can be updated in which order.
Tested-by: Thomas Richter <thor@math.tu-berlin.de>
Cc: stable@vger.kernel.org
Cc: Thomas Richter <thor@math.tu-berlin.de>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We had been using a DMI table workaround to select the right
frequency for devices, but this is fragile and must be updated
with every new platform.
Instead the default case when VBT is missing is changed to use
120MHz clock for LVDS SSC for these generations.
The docs for 2010-Core, SandyBridge, and IvyBridge all indicate
that the reference frequency for LVDS is 120MHz:
"2010 Core"
http://intellinuxgraphics.org/IHD_OS_Vol3_Part3r2.pdf
page 38
Reference Frequency: 120MHz for CRT and LVDS. 100MHz for the FDI.
"2011 SandyBridge"
http://intellinuxgraphics.org/documentation/SNB/IHD_OS_Vol3_Part3.pdf
page 33
Reference Frequency: 120MHz for CRT, HDMI, LVDS. 100MHz for the FDI.
"2012 IvyBridge"
http://intellinuxgraphics.org/documentation/IVB/IHD_OS_Vol3_Part4.pdf
page 27
Reference Frequency: 120 MHz for CRT, HDMI, LVDS, 100MHz for the FDI.
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
[olof: Fixup for recent base, switched from if/else to single call]
Signed-off-by: Olof Johansson <olof@lixom.net>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We used to put the local sink and any downstream sinks to power down
mode at disable or dpms off using the DPCD SET_POWER register, until
this was broken by
commit e8cb455876fa8f67c6aba394d0a14b697bf04cc3
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sun Jul 1 13:05:48 2012 +0200
drm/i915/dp: convert to encoder disable/enable
Fix it.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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into drm-fixes
More fixes for radeon. This adds new queries for tiling on CIK, and
fixes a crash in handling acpi atif backlight events on CIK.
Some fixes for radeon for 3.13. Mostly CI stability fixes. I think
I've tracked down the stability problems with dpm on Trinity/Richland,
so I'm going to enable that by default now.
* 'drm-next-3.13' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: hook up backlight functions for CI and KV family.
drm/radeon/cik: Add macrotile mode array query
drm/radeon/cik: Return backend map information to userspace
drm/radeon: enable DPM by default in TN asics
drm/radeon: adjust TN dpm parameters for stability (v2)
drm/radeon: use a single doorbell for cik kms compute
drm/radeon/vm: don't attempt to update ptes if ib allocation fails
drm/radeon: disable CIK CP semaphores for now
drm/radeon: allow semaphore emission to fail
drm/radeon: add semaphore trace point
radeon: workaround pinning failure on low ram gpu
radeon/i2c: do not count reg index in number of i2c byte we are writing.
drm/radeon: cypress_dpm: Fix unused variable warning when CONFIG_ACPI=n
drm: radeon: ni_dpm: Fix unused variable warning when CONFIG_ACPI=n
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Fixes crashes when handling atif events due to the lack of a
callback being registered.
Signed-off-by: Samuel Li <samuel.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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This is required to properly calculate the tiling parameters
in userspace.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This is required to properly calculate the tiling parameters
in userspace.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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After adjusting the dpm parameters this seems to be
stable on most TN systems. DPM is important for APUs
since the boot clocks are generally pretty low.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Adjust some of the TN dpm settings for stability. Enabling
these features causes hangs and other stability problems
on certain boards.
v2: leave uvd dpm enabled
Bug:
https://bugzilla.kernel.org/show_bug.cgi?id=63101
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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A single doorbell page is plenty for cik kms compute.
Use a single page and manage doorbell allocation by
individual doorbells rather than pages. Identify
doorbells by their index rather than byte offset.
Signed-off-by: Andrew Lewycky <Andrew.Lewycky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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If we fail to allocate an indirect buffer (ib) when updating
the ptes, return an error instead of trying to use the ib.
Avoids a null pointer dereference.
Bug:
https://bugzilla.kernel.org/show_bug.cgi?id=58621
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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To workaround bugs and/or certain limits it's sometimes
useful to fall back to waiting on fences.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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GPU with low amount of ram can fails at pinning new framebuffer before
unpinning old one. On such failure, retry with unpinning old one before
pinning new one allowing to work around the issue. This is somewhat
ugly but only affect those old GPU we care about.
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Useless to count the register index in number of bytes we are writing.
Fixes a regression with hw i2c enabled.
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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With CONFIG_ACPI=n the following build warning is seen:
drivers/gpu/drm/radeon/cypress_dpm.c:302:31: warning: unused variable 'eg_pi' [-Wunused-variable]
Protect eg_pi with CONFIG_ACPI.
Based on patch from: Fabio Estevam <fabio.estevam@freescale.com>
but doesn't mix allocation and code.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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With CONFIG_ACPI=n the following build warning is seen:
drivers/gpu/drm/radeon/ni_dpm.c:3448:31: warning: unused variable 'eg_pi' [-Wunused-variable]
Move the definition of eg_pi inside the CONFIG_ACPI 'if' block.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha
Pull alpha updates from Matt Turner:
"It contains a few fixes and some work from Richard to make alpha
emulation under QEMU much more usable"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha:
alpha: Prevent a NULL ptr dereference in csum_partial_copy.
alpha: perf: fix out-of-bounds array access triggered from raw event
alpha: Use qemu+cserve provided high-res clock and alarm.
alpha: Switch to GENERIC_CLOCKEVENTS
alpha: Enable the rpcc clocksource for single processor
alpha: Reorganize rtc handling
alpha: Primitive support for CPU power down.
alpha: Allow HZ to be configured
alpha: Notice if we're being run under QEMU
alpha: Eliminate compiler warning from memset macro
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Discontinue use of GENERIC_CMOS_UPDATE; rely on the RTC subsystem.
The marvel platform requires that the rtc only be touched from the
boot cpu. This had been partially implemented with hooks for
get/set_rtc_time, but read/update_persistent_clock were not handled.
Move the hooks from the machine_vec to a special rtc_class_ops struct.
We had read_persistent_clock managing the epoch against which the
rtc hw is based, but this didn't apply to get_rtc_time or set_rtc_time.
This resulted in incorrect values when hwclock(8) gets involved.
Allow the epoch to be set from the kernel command-line, overriding
the autodetection, which is doomed to fail in 2020. Further, by
implementing the rtc ioctl function, we can expose this epoch to
userland.
Elide the alarm functions that RTC_DRV_CMOS implements. This was
highly questionable on Alpha, since the interrupt is used by the
system timer.
Signed-off-by: Richard Henderson <rth@twiddle.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI and power management updates from Rafael Wysocki:
- ACPI-based device hotplug fixes for issues introduced recently and a
fix for an older error code path bug in the ACPI PCI host bridge
driver
- Fix for recently broken OMAP cpufreq build from Viresh Kumar
- Fix for a recent hibernation regression related to s2disk
- Fix for a locking-related regression in the ACPI EC driver from
Puneet Kumar
- System suspend error code path fix related to runtime PM and runtime
PM documentation update from Ulf Hansson
- cpufreq's conservative governor fix from Xiaoguang Chen
- New processor IDs for intel_idle and turbostat and removal of an
obsolete Kconfig option from Len Brown
- New device IDs for the ACPI LPSS (Low-Power Subsystem) driver and
ACPI-based PCI hotplug (ACPIPHP) cleanup from Mika Westerberg
- Removal of several ACPI video DMI blacklist entries that are not
necessary any more from Aaron Lu
- Rework of the ACPI companion representation in struct device and code
cleanup related to that change from Rafael J Wysocki, Lan Tianyu and
Jarkko Nikula
- Fixes for assigning names to ACPI-enumerated I2C and SPI devices from
Jarkko Nikula
* tag 'pm+acpi-2-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (24 commits)
PCI / hotplug / ACPI: Drop unused acpiphp_debug declaration
ACPI / scan: Set flags.match_driver in acpi_bus_scan_fixed()
ACPI / PCI root: Clear driver_data before failing enumeration
ACPI / hotplug: Fix PCI host bridge hot removal
ACPI / hotplug: Fix acpi_bus_get_device() return value check
cpufreq: governor: Remove fossil comment in the cpufreq_governor_dbs()
ACPI / video: clean up DMI table for initial black screen problem
ACPI / EC: Ensure lock is acquired before accessing ec struct members
PM / Hibernate: Do not crash kernel in free_basic_memory_bitmaps()
ACPI / AC: Remove struct acpi_device pointer from struct acpi_ac
spi: Use stable dev_name for ACPI enumerated SPI slaves
i2c: Use stable dev_name for ACPI enumerated I2C slaves
ACPI: Provide acpi_dev_name accessor for struct acpi_device device name
ACPI / bind: Use (put|get)_device() on ACPI device objects too
ACPI: Eliminate the DEVICE_ACPI_HANDLE() macro
ACPI / driver core: Store an ACPI device pointer in struct acpi_dev_node
cpufreq: OMAP: Fix compilation error 'r & ret undeclared'
PM / Runtime: Fix error path for prepare
PM / Runtime: Update documentation around probe|remove|suspend
cpufreq: conservative: set requested_freq to policy max when it is over policy max
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* acpi-hotplug:
PCI / hotplug / ACPI: Drop unused acpiphp_debug declaration
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Commit bd950799d951 (PCI: acpiphp: Convert to dynamic debug) removed users
of acpiphp_debug variable and the variable itself but the declaration was
left in the header file. Drop this unused declaration.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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* pm-cpufreq:
cpufreq: governor: Remove fossil comment in the cpufreq_governor_dbs()
cpufreq: OMAP: Fix compilation error 'r & ret undeclared'
cpufreq: conservative: set requested_freq to policy max when it is over policy max
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The related code has been changed and the comment is out of date.
So remove it.
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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With a recent change "d4019f0 cpufreq: move freq change notifications to cpufreq
core" few variables (r & ret) are removed by mistake and hence these warnings:
drivers/cpufreq/omap-cpufreq.c: In function omap_target:
drivers/cpufreq/omap-cpufreq.c:64:2: error: ret undeclared (first use in this function)
drivers/cpufreq/omap-cpufreq.c:64:2: note: each undeclared identifier is reported only once for each function it appears in
drivers/cpufreq/omap-cpufreq.c:94:3: error: r undeclared (first use in this function)
drivers/cpufreq/omap-cpufreq.c:116:1: warning: control reaches end of non-void function [-Wreturn-type]
Lets fix them by declaring those variables again.
Fixes: d4019f0a92ab (cpufreq: move freq change notifications to cpufreq core)
Reported-by: Sebastian Capella <sebastian.capella@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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policy max
When requested_freq is over policy->max, set it to policy->max.
This can help to speed up decreasing frequency.
Signed-off-by: Xiaoguang Chen <chenxg@marvell.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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* pm-runtime:
PM / Runtime: Fix error path for prepare
PM / Runtime: Update documentation around probe|remove|suspend
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If a device prepare callback for some reason would fail, the PM core
prevented the device from going inactive forever.
In this case, to reverse the pm_runtime_get_noresume() we invokes the
asyncronous pm_runtime_put(), thus restoring the usage count.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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* pm-cpuidle:
intel_idle: Support Intel Atom Processor C2000 Product Family
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Support the "Intel(R) Atom(TM) Processor C2000 Product Family",
formerly code-named Avoton. It is based on the next generation
Intel Atom processor architecture, formerly code-named Silvermont.
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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* acpi-video:
ACPI / video: clean up DMI table for initial black screen problem
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With commit 2c62333a408f "ACPI / video: Quirk initial backlight level 0"
we do not need to have the following systems in DMI table, so remove them.
HP Pavilion m4, HP 1000 Notebook PC, HP Pavilion g6 Notebook PC,
HP Pavilion dm4, Fujitsu E753, HP Folio 13-2000.
With this change, the use_bios_initial_backlight module parameter is no
longer needed and thus removed.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Tested-by: Alex Hung <alex.hung@canonical.com> # for HP 1000 Notebook PC
Tested-by: Gustavo Maciel Dias Vieira <gustavo@sagui.org> # for HP Pavilion dm4
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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* acpi-ec:
ACPI / EC: Ensure lock is acquired before accessing ec struct members
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A bug was introduced by commit b76b51ba0cef ('ACPI / EC: Add more debug
info and trivial code cleanup') that erroneously caused the struct member
to be accessed before acquiring the required lock. This change fixes
it by ensuring the lock acquisition is done first.
Found by Aaron Durbin <adurbin@chromium.org>
Fixes: b76b51ba0cef ('ACPI / EC: Add more debug info and trivial code cleanup')
References: http://crbug.com/319019
Signed-off-by: Puneet Kumar <puneetster@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
[olof: Commit message reworded a bit]
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: 3.8+ <stable@vger.kernel.org> # 3.8+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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* acpi-hotplug:
ACPI / scan: Set flags.match_driver in acpi_bus_scan_fixed()
ACPI / PCI root: Clear driver_data before failing enumeration
ACPI / hotplug: Fix PCI host bridge hot removal
ACPI / hotplug: Fix acpi_bus_get_device() return value check
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Before commit 6931007cc90b (ACPI / scan: Start matching drivers
after trying scan handlers) the match_driver flag for all devices
was set in acpi_add_single_object(), but now it is set by
acpi_bus_device_attach() which is not called for the "fixed"
devices added by acpi_bus_scan_fixed(). This means that
flags.match_driver is never set for those devices now, so make
acpi_bus_scan_fixed() set it before calling device_attach().
Fixes: 6931007cc90b (ACPI / scan: Start matching drivers after trying scan handlers)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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If a PCI host bridge cannot be enumerated due to an error in
pci_acpi_scan_root(), its ACPI device object's driver_data field
has to be cleared by acpi_pci_root_add() before freeing the
object pointed to by that field, or some later acpi_pci_find_root()
checks that should fail may succeed and cause quite a bit of
confusion to ensue.
Fix acpi_pci_root_add() to clear device->driver_data before
returning an error code as appropriate.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
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Since the PCI host bridge scan handler does not set hotplug.enabled,
the check of it in acpi_bus_device_eject() effectively prevents the
root bridge hot removal from working after commit a3b1b1ef78cd
(ACPI / hotplug: Merge device hot-removal routines). However, that
check is not necessary, because the other acpi_bus_device_eject()
users, acpi_hotplug_notify_cb and acpi_eject_store(), do the same
check by themselves before executing that function.
For this reason, remove the scan handler check from
acpi_bus_device_eject() to make PCI hot bridge hot removal work
again.
Fixes: a3b1b1ef78cd (ACPI / hotplug: Merge device hot-removal routines)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
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Since acpi_bus_get_device() returns a plain int and not acpi_status,
ACPI_FAILURE() should not be used for checking its return value. Fix
that.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
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* acpi-lpss:
ACPI / LPSS: add ACPI IDs for newer Intel PCHs
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