* A few device tree source fixes regarding pinctrl, clock, and pwm
backlight.
* Fixes imx28 and imx51 audio driver failure caused by sgtl5000 codec
driver change by supplying the correct clock for codec.
* imx6q emi_sel clock muxing and imx6q-iomuxc-gpr macro fixes
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Merge tag 'imx-fixes-3.11' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
From Shawn Guo, imx fixes for 3.11:
- A few device tree source fixes regarding pinctrl, clock, and pwm
backlight.
- Fixes imx28 and imx51 audio driver failure caused by sgtl5000 codec
driver change by supplying the correct clock for codec.
- imx6q emi_sel clock muxing and imx6q-iomuxc-gpr macro fixes
* tag 'imx-fixes-3.11' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: dts: imx51-babbage: Pass a real clock to the codec
ARM i.MX53: mba53: Fix PWM backlight DT node
ARM: imx: fix vf610 enet module clock selection
ARM: mxs: saif0 is the clock provider to sgtl5000
ARM: i.MX6Q: correct emi_sel clock muxing
ARM i.MX6Q: Fix IOMUXC GPR1 defines for ENET_CLK_SEL and IPU1/2_MUX
ARM: i.MX27: Typo fix
ARM: imx27: Fix documentation for SPLL clock
ARM i.MX53: Fix UART pad configuration
From Tony Lindgren:
Omap fixes mostly to deal with the dropping of platform data for omap4,
and to make v7_defconfig bootable on omap4 SDP with nfsroot.
* tag 'omap-for-v3.11/fixes-against-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Provide alias to USB PHY clock
ARM: dts: Add missing vmmc2 regulator for twl
ARM: multi_v7: Enabled omap4430 sdp nfsroot
From Sekhar Nori:
DaVinci fixes for v3.11-rc2
The pull request includes fixes for sparse warnings, defconfig changes to
enable DMA usage on peripherals and removal of a duplicated include file.
* tag 'davinci-fixes-for-v3.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci: defconfig: enable EDMA driver
ARM: davinci: make file local variables static
ARM: edma: remove duplicated include from edma.c
Signed-off-by: Olof Johansson <olof@lixom.net>
On platforms with no support for the shdma dmaengine driver build is
currently failing with
drivers/built-in.o: In function `sh_mobile_sdhi_probe':
drivers/mmc/host/sh_mobile_sdhi.c:170: undefined reference to`shdma_chan_filter'
Fix the breakage by defining shdma_chan_filter to NULL in such
configurations.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
[horms+renesas@verge.net.au: Apply change to shdma-base.h instead of sh_dma.h]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Olof Johansson <olof@lixom.net>
Some of the ARM_ERRATA selection is not done in the initial SOC support
patches. This patch selects 2 new ARM_ERRATA's and removes one which was
actually fixed.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
[olof: reorder new errata entries]
Signed-off-by: Olof Johansson <olof@lixom.net>
This patch fixes a bug in pinctrl setup of serial2 device, Some of the
pins in the pinctrl node of serial2 do not belong to that
pin-controller. This patch divides them in the pins into there
respective pin controller nodes.
Without this patch serial on StiH416-B2000 Board will not work as it
fails with:
"st-pinctrl pin-controller-rear.3: failed to get pin(99) name
st-pinctrl pin-controller-rear.3: maps: function serial2 group serial2-0
num 4
pinconfig core: failed to register map default (3): no group/pin given"
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Change to using max P-state instead of max turbo P-state. This
change resolves two issues.
On a quiet system intel_pstate can fail to respond to a load change.
On CPU SKUs that have a limited number of P-states and no turbo range
intel_pstate fails to select the highest available P-state.
This change is suitable for stable v3.9+
References: https://bugzilla.kernel.org/show_bug.cgi?id=59481
Reported-and-tested-by: Arjan van de Ven <arjan@linux.intel.com>
Reported-and-tested-by: dsmythies@telus.net
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 3.9+ <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Some of the fixes need to go back to 3.10. They are minor, and deal mostly
with incorrect ref counting in accessing event files.
There was a couple of optimizations that should have perf perform a bit
better when accessing trace events.
And some various clean ups. Some of the clean ups are necessary to help
in a fix to a theoretical race between opening a event file and
deleting that event.
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Merge tag 'trace-3.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes and cleanups from Steven Rostedt:
"This contains fixes, optimizations and some clean ups
Some of the fixes need to go back to 3.10. They are minor, and deal
mostly with incorrect ref counting in accessing event files.
There was a couple of optimizations that should have perf perform a
bit better when accessing trace events.
And some various clean ups. Some of the clean ups are necessary to
help in a fix to a theoretical race between opening a event file and
deleting that event"
* tag 'trace-3.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Kill the unbalanced tr->ref++ in tracing_buffers_open()
tracing: Kill trace_array->waiter
tracing: Do not (ab)use trace_seq in event_id_read()
tracing: Simplify the iteration logic in f_start/f_next
tracing: Add ref_data to function and fgraph tracer structs
tracing: Miscellaneous fixes for trace_array ref counting
tracing: Fix error handling to ensure instances can always be removed
tracing/kprobe: Wait for disabling all running kprobe handlers
tracing/perf: Move the PERF_MAX_TRACE_SIZE check into perf_trace_buf_prepare()
tracing/syscall: Avoid perf_trace_buf_*() if sys_data->perf_events is empty
tracing/function: Avoid perf_trace_buf_*() if event_function.perf_events is empty
tracing: Typo fix on ring buffer comments
tracing: Use trace_seq_puts()/trace_seq_putc() where possible
tracing: Use correct config guard CONFIG_STACK_TRACER
Pull thermal management fixes from Zhang Rui:
"These are fixes collected over the last week, they fixes several
problems caused by the x86_pkg_temp_thermal introduced in 3.11-rc1.
Specifics:
- the x86_pkg_temp_thermal driver causes crash on systems with no
package MSR support as there is a bug in the logic to check
presence of DTHERM and PTS feature together. Added a change so
that when there is no PTS support, module doesn't get loaded.
- fix krealloc() misuse in pkg_temp_thermal_device_add().
If krealloc() returns NULL, it doesn't free the original. Thus if
we want to exit because of the krealloc() failure, we must make
sure the original one is freed.
- The error code path of the x86 package temperature thermal driver's
initialization routine makes an unbalanced call to
get_online_cpus(), which causes subsequent CPU offline operations,
and consequently system suspend, to permanently block in
cpu_hotplug_begin() on systems where get_core_online() returns an
error code.
Remove the extra get_online_cpus() to fix the problem"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
Thermal: Fix lockup of cpu_down()
Thermal: x86_pkg_temp: Limit number of pkg temp zones
Thermal: x86_pkg_temp: fix krealloc() misuse in in pkg_temp_thermal_device_add()
Thermal: x86 package temp thermal crash
- OMAP device tree boot fix
- Handle an error condition in the MSM driver
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Merge tag 'gpio-for-v3.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull gpio fixes from Linus Walleij:
"A first round of GPIO fixes for the v3.11 series:
- OMAP device tree boot fix
- Handle an error condition in the MSM driver
The OMAP patches have been around since around the merge window, but
since they first caused more breakage I let them boil in -next for a
while. These should be fine now"
* tag 'gpio-for-v3.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
drivers: gpio: msm: Fix the error condition for reading ngpio
gpio/omap: fix build error when OF_GPIO is not defined.
gpio/omap: auto request GPIO as input if used as IRQ via DT
gpio/omap: don't create an IRQ mapping for every GPIO on DT
Pull block IO driver bits from Jens Axboe:
"As I mentioned in the core block pull request, due to real life
circumstances the driver pull request would be late. Now it looks
like -rc2 late... On the plus side, apart form the rsxx update, these
are all things that I could argue could go in later in the cycle as
they are fixes and not features. So even though things are late, it's
not ALL bad.
The pull request contains:
- Updates to bcache, all bug fixes, from Kent.
- A pile of drbd bug fixes (no big features this time!).
- xen blk front/back fixes.
- rsxx driver updates, some of them deferred form 3.10. So should be
well cooked by now"
* 'for-3.11/drivers' of git://git.kernel.dk/linux-block: (63 commits)
bcache: Allocation kthread fixes
bcache: Fix GC_SECTORS_USED() calculation
bcache: Journal replay fix
bcache: Shutdown fix
bcache: Fix a sysfs splat on shutdown
bcache: Advertise that flushes are supported
bcache: check for allocation failures
bcache: Fix a dumb race
bcache: Use standard utility code
bcache: Update email address
bcache: Delete fuzz tester
bcache: Document shrinker reserve better
bcache: FUA fixes
drbd: Allow online change of al-stripes and al-stripe-size
drbd: Constants should be UPPERCASE
drbd: Ignore the exit code of a fence-peer handler if it returns too late
drbd: Fix rcu_read_lock balance on error path
drbd: fix error return code in drbd_init()
drbd: Do not sleep inside rcu
bcache: Refresh usage docs
...
sata_inic162x never reached a state where it's reliable enough for
production use and data corruption is a relatively common occurrence.
Make the driver generate warning about the issues and mark the Kconfig
option as experimental.
If the situation doesn't improve, we'd be better off making it depend
on CONFIG_BROKEN. Let's wait for several cycles and see if the kernel
message draws any attention.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Martin Braure de Calignon <braurede@free.fr>
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Reported-by: risc4all@yahoo.com
This warning has been introduced by the commit
0f9bc4bcdf pinctrl: single: adopt pinctrl sleep mode management
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The usage of strict_strtol() is not preferred, because
strict_strtol() is obsolete. Thus, kstrtol() should be
used.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Noticed that my old Radeon 7500 hung after printing
drm: GPU not posted. posting now...
when it wasn't selected as the primary card the BIOS. Some digging
revealed that it was hanging in combios_parse_mmio_table() while
parsing the ASIC INIT 3 table. Looking at the BIOS ROM for the card,
it becomes obvious that there is no ASIC INIT 3 table in the BIOS.
The code is just processing random garbage. No surprise it hangs!
Why do I say that there is no ASIC INIT 3 table is the BIOS? This
table is found through the MISC INFO table. The MISC INFO table can
be found at offset 0x5e in the COMBIOS header. But the header is
smaller than that. The COMBIOS header starts at offset 0x126. The
standard PCI Data Structure (the bit that starts with 'PCIR') lives at
offset 0x180. That means that the COMBIOS header can not be larger
than 0x5a bytes and therefore cannot contain a MISC INFO table.
I looked at a dozen or so BIOS images, some my own, some downloaded from:
<http://www.techpowerup.com/vgabios/index.php?manufacturer=ATI&page=1>
It is fairly obvious that the size of the COMBIOS header can be found
at offset 0x6 of the header. Not sure if it is a 16-bit number or
just an 8-bit number, but that doesn't really matter since the tables
seems to be always smaller than 256 bytes.
So I think combios_get_table_offset() should check if the requested
table is present. This can be done by checking the offset against the
size of the header. See the diff below. The diff is against the WIP
OpenBSD codebase that roughly corresponds to Linux 3.8.13 at this
point. But I don't think this bit of the code changed much since
then.
For what it is worth:
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Hopefully avoid more quirks in the future due to bogus
vbios dac data.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Hello,
got another card with "too bright" problem:
Sapphire Radeon VE 7000 DDR (VGA+S-Video)
lspci -vnn:
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI RV100 QY [Radeon 7000/VE] [1002:5159] (prog-if 00 [VGA controller])
Subsystem: PC Partner Limited Sapphire Radeon VE 7000 DDR [174b:7c28]
The patch below fixes the problem for this card.
But I don't like the blacklist, couldn't some heuristic be used instead?
The interesting thing is that the manufacturer is the same as the other card
needing the same quirk. I wonder how many different types are broken this way.
The "wrong" ps2_pdac_adj value that comes from BIOS on this card is 0x300.
====================
drm/radeon: Add primary dac adj quirk for Sapphire Radeon VE 7000 DDR
Values from BIOS are wrong, causing too bright colors.
Use default values instead.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
The atom interpreter expects data in LE format, so
swap the message buffer as apprioriate.
v2: properly handle non-dw aligned byte counts.
v3: properly handle remainder
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Dong He <hedonghust@gmail.com>
Cc: stable@vger.kernel.org
Make sure the 3D engine is idle before using CP DMA for
bo copies.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Marek Olšák <maraeo@gmail.com>
The PFC pinctrl driver on sh73a0 is also regiatering a VccQ regulator for
SDHI0. However, its consumers list only included the platform-data based
SDHI device name. When booted with DT SDHI0 couldn't enable VccQ and
therefore was unusable. Fix this by adding a consumer with DT-based name.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
It almost does not matter because most users use only the ->start member
of the struct. However if this struct is passed to a platform device
which is then added via platform_device_add() then the ->parent member is
also used.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
list_first_entry() expects the list is not empty, we need to check if list is
empty before calling list_first_entry(). Thus use list_first_entry_or_null()
instead of list_first_entry().
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
This prefix will be used in various compatible properties
for the devices from Qualcomm Atheros, Inc.
Cc: Luis R. Rodriguez <rodrigue@qca.qualcomm.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Device tree bindings require a lot more attention than they used to.
We've got a group of volunteers willing to take over maintaining
bindings. This patch adds them to the MAINTAINERS file.
This group still needs to work out a process for maintainership and how
they are going to work together. I recommend that they set up a shared
tree on git.kernel.org that they each have commit access to similar to
the tip tree or the arm-soc tree, but it is up to them.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Unfortunately, I'm no longer to spend the time needed on maintainership.
It is time for me to step aside and pass maintainership to other
engineers. I'm not disappearing from Linux development, but it would be
irresponsible for me to hold onto a job that I am unable to do.
v2: Leave my name on devicetree core code maintainership. Rob NAKed that
part of the patch. :)
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Linux Walleij <linus.walleij@linaro.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Set the ehci->resuming flag for the port we receive a remote
wakeup on so that resume signalling can be completed.
Without this, the root hub timer will not fire again to check
if the resume was completed and there will be a never-ending wait on
on the port.
This effect is only observed if the HUB IRQ IN does not come after we
have initiated the port resume.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Added support for MMB Networks and Planet Innovation Ingeni ZigBee USB
devices using customized Silicon Labs' CP210x.c USB to UART bridge
drivers with PIDs: 88A4, 88A5.
Signed-off-by: Sami Rahman <sami.rahman@mmbresearch.com>
Tested-by: Sami Rahman <sami.rahman@mmbresearch.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds support for the Schweitzer Engineering Laboratories
C662 USB cable based off the CP210x driver.
Signed-off-by: Barry Grussling <barry@grussling.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch was tested on 3.10.1 kernel.
Same models of Petatel NP10T modems have different device IDs.
Unfortunately they have no additional revision information on a board
which may treat them as different devices. Currently I've seen only
two NP10T devices with various IDs. Possibly Petatel NP10T list will
be appended upon devices with new IDs will appear.
Signed-off-by: Daniil Bolsun <dan.bolsun@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The device report an error capacity when read_capacity_16().
Using read_capacity_10() can get the correct capacity.
Signed-off-by: Ren Bigcren <bigcren.ren@sonymobile.com>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Oskar Andero <oskar.andero@sonymobile.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This adds NetGear Managed Switch M4100 series, M5300 series, M7100 series
USB ID (0846:0110) to the cp210x driver. Without this, the serial
adapter is not recognized in Linux. Description was obtained from
an Netgear Eng.
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The errors were caused by copy/paste mistake in below commit
since v3.10:
3489d50 ASoC: tegra: Use common DAI DMA data struct
It also corrects slave_id initialization in tegra20_ac97 driver.
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: <stable@vger.kernel.org> # 3.10
There are three callers for this function, and none of them want it to
free platform for them. It leads to a double free.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
- fixup panel fitter readout for gen2/3 (just quitens dmesg noise)
- fix pft computations for non-autoscaled resolutions (i.e. letter/pillar
boxing on gen2/3)
- preserve the DDI A/E lane sharing bit (Stéphane Marchesin)
- fix the "rc6 fails to work after resume" regression, big thanks to
Konstantin Khlebnikov for the patch and debug insight about what
actually might be going on here
- fix Oops in is_crtc_connector_off (Chris)
- sanitize shared dpll state - our new paranoid state checker tripped up
over dirt left behind by the BIOS
- correctly restore fences, fixes the "my screen is all messed up after
resume" regression introduced in the final 3.10 pull request
- quirk backlights harder, this time for Dell XPS13 machines to fix a
regression (patch from Kamal Mostafa)
- 90% fix for some haswell hangs when accessing registers concurrently,
the 100% solution is simply too invasive for -fixes and what we have
here seems to be good enough (Chris)
* tag 'drm-intel-fixes-2013-07-22' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: fix up gt init sequence fallout
drm/i915: Serialize almost all register access
drm/i915: quirk no PCH_PWM_ENABLE for Dell XPS13 backlight
drm/i915: correctly restore fences with objects attached
drm/i915: Fix dereferencing invalid connectors in is_crtc_connector_off()
drm/i915: Sanitize shared dpll state
drm/i915: fix long-standing SNB regression in power consumption after resume v2
drm/i915: Preserve the DDI_A_4_LANES bit from the bios
drm/i915: fix pfit regression for non-autoscaled resolutions
drm/i915: fix up readout of the lvds dither bit on gen2/3
Commit f1a18a105 "Thermal: CPU Package temperature thermal" had code
that did a get_online_cpus(), run a loop and then do a
put_online_cpus(). The problem is that the loop had an error exit that
would skip the put_online_cpus() part.
In the error exit part of the function, it also did a get_online_cpus(),
run a loop and then put_online_cpus(). The only way to get to the error
exit part is with get_online_cpus() already performed. If this error
condition is hit, the system will be prevented from taking CPUs offline.
The process taking the CPU offline will lock up hard.
Removing the get_online_cpus() removes the lockup as the hotplug CPU
refcount is back to zero.
This was bisected with ktest.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Fixes for some locking issues, and fence timeouts.
* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nouveau: do not allow negative sizes for now
drm/nouveau: add falcon interrupt handler
drm/nouveau: use dedicated channel for async moves on GT/GF chipsets.
drm/nouveau: bump fence timeout to 15 seconds
drm/nouveau: do not unpin in nouveau_gem_object_del
drm/nv50/kms: fix pin refcnt leaks
drm/nouveau: fix some error-path leaks in fbcon handling code
drm/nouveau: fix locking issues in page flipping paths
Atm the crtc helper implementation of set_config has really
inconsisten semantics: If just an fb update is good enough, dpms state
will be left as-is, but if we do a full modeset we force everything to
dpms on.
This change has already been applied to the i915 modeset code in
commit e3de42b684
Author: Imre Deak <imre.deak@intel.com>
Date: Fri May 3 19:44:07 2013 +0200
drm/i915: force full modeset if the connector is in DPMS OFF mode
which according to Greg KH seems to aim for a new record in most
Bugzilla: links in a commit message.
The history of this dpms forcing is pretty interesting. This patch
here is an almost-revert of
commit 811aaa55ba
Author: Keith Packard <keithp@keithp.com>
Date: Thu Feb 3 16:57:28 2011 -0800
drm: Only set DPMS ON when actually configuring a mode
which fixed the bug of trying to dpms on disabled outputs, but
introduced the new discrepancy between an fb update only and full
modesets. The actual introduction of this goes back to
commit bf9dc102e2
Author: Keith Packard <keithp@keithp.com>
Date: Fri Nov 26 10:45:58 2010 -0800
drm: Set connector DPMS status to ON in drm_crtc_helper_set_config
And if you'd dig around in the i915 driver code there's even more fun
around forcing dpms on and losing our heads and temper of the
resulting inconsistencies. Especially the DP re-training code had tons
of funny stuff in it.
v2: So v1 totally blew up on resume on my radeon system here. After
much head-scraching I've figured out that the radeon resume functions
resumes the console system _before_ it actually restores all the
modeset state. And resuming the console systems means that fbdev doeas
an immediate ->set_par call.
Now up to this patch that ->set_par did absolutely nothing: All the
old sw state from pre-suspend was still around (since the modeset
reset wasn't done yet), which means that the set_config calls done as
a result of the ->set_par where all treated as no-ops (despite that
the real hw state was obviously something completely different).
Since v1 of this patch just added a bunch of ->dpms calls if the crtc
was enabled, those set_config calls suddenly stopped being no-ops. But
because the hw state wasn't restored the ->dpms callbacks resulted in
decent amounts of hilarity and eventual full hangs.
Since I can't review all kms drivers for such tricky ordering
constraints v2 opts for a different approach and forces a full modeset
if the connector dpms state isnt' DPMS_ON. Since the ->dpms callbacks
implemented by the modeset helpers update the connector->dpms property
we have the same effect of ensuring that the pipe is ultimately turned
on, even if we just end up updating the fb. This is the same approac
we ended up using in the intel driver.
Note that besides i915.ko only all other drivers eventually call
drm_helper_connector_dpms with the exception of vmwgfx, which does not
support dmps at all.
v3: Dave Airlie merged the broken first version of this patch, so
squash in the revert of
commit 372835a852
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sat Jun 15 00:13:13 2013 +0200
drm/crtc-helper: explicit DPMS on after modeset
Also fix up the spelling fail a bit in the commit message while at it.
Cc: Dave Airlie <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67043
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
in drivers/pinctrl/sirf, pingroup name is cko0 and cko1, but in dts, they
are cko0 and cko1_rst. this patch fixes the error in dts.
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
this patch adds the lost pin group which supports to let USP0 to simulate
a UART without hardware flow control.
Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
we missed a pin and related mux bit for usp pin group, this
patch fixes it.
Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Using #include <include/...> is a bit odd. It happens to work because the DTC
flags include -Iarch/FOO/boot/dts as well as arch/FOO/boot/dts/include and
arch/FOO/boot/dts/include/dt-bindings is a symlink to include/dt-bindings.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
- Change from Aaron Lu makes ACPICA export a variable which can be
used by driver code to determine whether or not the BIOS believes
that we are compatible with Windows 8.
- Change from Matthew Garrett makes the ACPI video driver initialize
the ACPI backlight even if it is not going to be used afterward
(that is needed for backlight control to work on Thinkpads).
- Fix from Rafael J Wysocki implements Windows 8 backlight support
workaround making i915 take over bakclight control if the firmware
thinks it's dealing with Windows 8. Based on the work of multiple
developers including Matthew Garrett, Chun-Yi Lee, Seth Forshee,
and Aaron Lu.
- Fix from Aaron Lu makes the kernel follow Windows 8 by informing
the firmware through the _DOS method that it should not carry out
automatic brightness changes, so that brightness can be controlled
by GUI.
/
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Merge tag 'acpi-video-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI video support fixes from Rafael Wysocki:
"I'm sending a separate pull request for this as it may be somewhat
controversial. The breakage addressed here is not really new and the
fixes may not satisfy all users of the affected systems, but we've had
so much back and forth dance in this area over the last several weeks
that I think it's time to actually make some progress.
The source of the problem is that about a year ago we started to tell
BIOSes that we're compatible with Windows 8, which we really need to
do, because some systems shipping with Windows 8 are tested with it
and nothing else, so if we tell their BIOSes that we aren't compatible
with Windows 8, we expose our users to untested BIOS/AML code paths.
However, as it turns out, some Windows 8-specific AML code paths are
not tested either, because Windows 8 actually doesn't use the ACPI
methods containing them, so if we declare Windows 8 compatibility and
attempt to use those ACPI methods, things break. That occurs mostly
in the backlight support area where in particular the _BCM and _BQC
methods are plain unusable on some systems if the OS declares Windows
8 compatibility.
[ The additional twist is that they actually become usable if the OS
says it is not compatible with Windows 8, but that may cause
problems to show up elsewhere ]
Investigation carried out by Matthew Garrett indicates that what
Windows 8 does about backlight is to leave backlight control up to
individual graphics drivers. At least there's evidence that it does
that if the Intel graphics driver is used, so we've decided to follow
Windows 8 in that respect and allow i915 to control backlight (Daniel
likes that part).
The first commit from Aaron Lu makes ACPICA export the variable from
which we can infer whether or not the BIOS believes that we are
compatible with Windows 8.
The second commit from Matthew Garrett prepares the ACPI video driver
by making it initialize the ACPI backlight even if it is not going to
be used afterward (that is needed for backlight control to work on
Thinkpads).
The third commit implements the actual workaround making i915 take
over backlight control if the firmware thinks it's dealing with
Windows 8 and is based on the work of multiple developers, including
Matthew Garrett, Chun-Yi Lee, Seth Forshee, and Aaron Lu.
The final commit from Aaron Lu makes us follow Windows 8 by informing
the firmware through the _DOS method that it should not carry out
automatic brightness changes, so that brightness can be controlled by
GUI.
Hopefully, this approach will allow us to avoid using blacklists of
systems that should not declare Windows 8 compatibility just to avoid
backlight control problems in the future.
- Change from Aaron Lu makes ACPICA export a variable which can be
used by driver code to determine whether or not the BIOS believes
that we are compatible with Windows 8.
- Change from Matthew Garrett makes the ACPI video driver initialize
the ACPI backlight even if it is not going to be used afterward
(that is needed for backlight control to work on Thinkpads).
- Fix from Rafael J Wysocki implements Windows 8 backlight support
workaround making i915 take over bakclight control if the firmware
thinks it's dealing with Windows 8. Based on the work of multiple
developers including Matthew Garrett, Chun-Yi Lee, Seth Forshee,
and Aaron Lu.
- Fix from Aaron Lu makes the kernel follow Windows 8 by informing
the firmware through the _DOS method that it should not carry out
automatic brightness changes, so that brightness can be controlled
by GUI"
* tag 'acpi-video-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / video: no automatic brightness changes by win8-compatible firmware
ACPI / video / i915: No ACPI backlight if firmware expects Windows 8
ACPI / video: Always call acpi_video_init_brightness() on init
ACPICA: expose OSI version
The regression fix for gen6+ rps fallout
commit 7dcd2677ea
Author: Konstantin Khlebnikov <khlebnikov@openvz.org>
Date: Wed Jul 17 10:22:58 2013 +0400
drm/i915: fix long-standing SNB regression in power consumption after resume
unintentionally also changed the init sequence ordering between
gt_init and gt_reset - we need to reset BIOS damage like leftover
forcewake references before we run our own code. Otherwise we can get
nasty dmesg noise like
[drm:__gen6_gt_force_wake_mt_get] *ERROR* Timed out waiting for forcewake old ack to clear.
again. Since _reset suggests that we first need to have stuff
initialized (which isn't the case here) call it sanitze instead.
While at it also block out the rps disable introduced by the above
commit on ilk: We don't have any knowledge of ilk rps being broken in
similar ways. And the disable functions uses the default hw state
which is only read out when we're enabling rps. So essentially we've
been writing random grabage into that register.
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@vger.kernel.org
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Return SNDRV_PCM_POS_XRUN (snd_pcm_uframes_t) instead of
SNDRV_PCM_STATE_XRUN (snd_pcm_state_t) from the pointer
function of 6fire, as expected by snd_pcm_update_hw_ptr0().
Caught by sparse.
Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
