Work around BIOSes that don't report the entire Intel MCH area.
MCHBAR is not an architected PCI BAR, so MCH space is usually reported as a
PNP0C02 resource. The MCH space was once 16KB, but is 32KB in newer parts.
Some BIOSes still report a PNP0C02 resource that is only 16KB, which means
the rest of the MCH space is consumed but unreported.
This can cause resource map sanity check warnings or (theoretically) a
device conflict if we assigned the unreported space to another device.
The Intel perf event uncore driver tripped over this when it claimed the
MCH region:
resource map sanity check conflict: 0xfed10000 0xfed15fff 0xfed10000 0xfed13fff pnp 00:01
Info: mapping multiple BARs. Your kernel is fine.
To prevent this, if we find a PNP0C02 resource that covers part of the MCH
space, extend it to cover the entire space.
References: http://lkml.kernel.org/r/20140224162400.GE16457@pd.tnic
Reported-and-tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Pull ARM fixes from Russell King:
"Various fixes and post-merge window updates. Included here are:
- ensure Kconfig things which should be sorted remain sorted
- fix three big-endian bugs which crept in during the last merge
window
- add the renameat2 syscall
- fix big.LITTLE switcher initialisation checks
- fix kdump vmcore for LPAE kernels"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: add renameat2 syscall
ARM: keep arch/arm/Kconfig and arch/arm/mm/Kconfig select entries sorted
ARM: 8033/1: fix big endian __pv_phys_pfn_offset size related issue
ARM: 8032/1: bL_switcher: fix validation check before its activation
ARM: 8030/1: ARM : kdump : add arch_crash_save_vmcoreinfo
ARM: 8027/1: fix do_div() bug in big-endian systems
ARM: 8026/1: Fix emulation of multiply accumulate instructions
ARM: 8024/1: Keep DEBUG_UART_{PHYS,VIRT} entries sorted
In usbdux_ao_cmd(), the channels for the command are transfered from the
cmd->chanlist and stored in the private data 'ao_chanlist'. The channel
numbers are bit-shifted when stored so that they become the "command"
that is transfered to the device. The channel to command conversion
results in the 'ao_chanlist' having these values for the channels:
channel 0 -> ao_chanlist = 0x00
channel 1 -> ao_chanlist = 0x40
channel 2 -> ao_chanlist = 0x80
channel 3 -> ao_chanlist = 0xc0
The problem is, the usbduxsub_ao_isoc_irq() function uses the 'chan' value
from 'ao_chanlist' to access the 'ao_readback' array in the private data.
So instead of accessing the array as 0, 1, 2, 3, it accesses it as 0x00,
0x40, 0x80, 0xc0.
Fix this by storing the raw channel number in 'ao_chanlist' and doing the
bit-shift when creating the command.
Fixes: a998a3db53 "staging: comedi: usbdux: cleanup the private data 'outBuffer'"
Cc: stable <stable@vger.kernel.org> # 3.12
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Acked-by: Bernd Porr <mail@berndporr.me.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
File-private locks have been re-christened as "open file description"
locks. Finish the symbol name cleanup in the internal implementation.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
At least the smc91x driver expects the device to be at 0x300
offset from bus base address. This does not work currently
for GPMC when booted in device tree mode as it attempts to
remap the the allocated GPMC partition to the address
configured by the device tree plus the device offset.
Note that this works just fine when booted with legacy mode.
Let's fix the issue by just ignoring any device specific
offset while remapping. And let's make sure the remap
address confirms to the GPMC 16MB minimum granularity
as listed in the TRM for GPMC_CONFIG7 BASEADDRESS bits.
Otherwise we can get something like this:
omap-gpmc 6e000000.gpmc: cannot remap GPMC CS 1 to 0x01000300
Cc: Pekon Gupta <pekon@ti.com>
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Pull input updates from Dmitry Torokhov:
"The main change is that we now publish "firmware ID" for the serio
devices to help userspace figure out the kind of touchpads it is
dealing with: i8042 will export PS/2 port's PNP IDs as firmware IDs.
You will also get more quirks for Synaptics touchpads in various
Lenovo laptops, a change to elantech driver to recognize even more
models, and fixups to wacom and couple other drivers"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elantech - add support for newer elantech touchpads
Input: soc_button_array - fix a crash during rmmod
Input: synaptics - add min/max quirk for ThinkPad T431s, L440, L540, S1 Yoga and X1
Input: synaptics - report INPUT_PROP_TOPBUTTONPAD property
Input: Add INPUT_PROP_TOPBUTTONPAD device property
Input: i8042 - add firmware_id support
Input: serio - add firmware_id sysfs attribute
Input: wacom - handle 1024 pressure levels in wacom_tpc_pen
Input: wacom - references to 'wacom->data' should use 'unsigned char*'
Input: wacom - override 'pressure_max' with value from HID_USAGE_PRESSURE
Input: wacom - use full 32-bit HID Usage value in switch statement
Input: wacom - missed the last bit of expresskey for DTU-1031
Input: ads7846 - fix device usage within attribute show
Input: da9055_onkey - remove use of regmap_irq_get_virq()
Pull radeon drm fixes from Dave Airlie:
"This is just radeon fixes, primarily the two pll fix and the aux fix,
it also disables dpm on rv770 gpus, fixes driver reloading, and fixes
two issues with runtime PM on some GPUS"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon: don't allow runpm=1 on systems with out ATPX
drm/radeon: fix ATPX detection on non-VGA GPUs
drm/radeon/pm: don't walk the crtc list before it has been initialized (v2)
drm/radeon: properly unregister hwmon interface (v2)
drm/radeon: fix count in cik_sdma_ring_test()
drm/radeon/aux: fix hpd assignment for aux bus
drm/radeon: improve PLL limit handling in post div calculation
drm/radeon: use fixed PPL ref divider if needed
drm/radeon: disable dpm on rv770 by default
There is a missing 0 entry from the MOD_SEL3 table.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The extra entry in the table makes SCIFA0_B, and all
peripherals after it, fail.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Since we set up device wake-up interrupts as pinctrl-single
interrupts, we now must use the standard request_irq and
related functions to manage them.
If the pin interrupts are enabled for some pins at boot,
the wake-up events can show up as constantly pending
at least on omaps and will hang the system unless the related
device driver clears the event at the device.
To fix this, let's clear the interrupt flags during init,
and print out a warning so the board maintainers can update
their drivers to do proper request_irq for the driver specific
wake-up events.
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
68efd7d2fb("arm: dma-mapping: remove order parameter from
arm_iommu_create_mapping()") is causing kernel panic
because it wrongly sets the value of mapping->size:
Unable to handle kernel NULL pointer dereference at virtual
address 000000a0
pgd = e7a84000
[000000a0] *pgd=00000000
...
PC is at bitmap_clear+0x48/0xd0
LR is at __iommu_remove_mapping+0x130/0x164
Fix it by correcting mapping->size value.
Signed-off-by: Ritesh Harjani <ritesh.harjani@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
s/interrupts-names/interrupt-names/g
s/clocks-names/clock-names/g
Some of the binding files and device tree files get this wrong and the
kernel won't be able to pick it up. Fix them up now so that they don't
get widely used.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by : Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Commit 12e55569a2 "tools lib traceevent: Use helper trace-seq in print
functions like kernel does" added a extra trace_seq helper to process
string arguments like the kernel does it. But the difference between the
kernel and the userspace library is that the kernel's trace_seq structure
has a static allocated buffer. The userspace one has a dynamically
allocated one. It requires a trace_seq_destroy(), otherwise it produces
a nasty memory leak.
Cc: stable@vger.kernel.org # 3.14+
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20140422192330.6bb09bf8@gandalf.local.home
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
The return value for pevent_filter_match() is suppose to return FILTER_NONE
if the event doesn't have a filter, and FILTER_NOEXIST if there is no filter
at all. But the change 41e12e580a "tools lib traceevent: Refactor
pevent_filter_match() to get rid of die()" replaced the return value
with PEVENT_ERRNO__* values and added "backward compatibility" macros
that used the old names. Unfortunately, the NOEXIST and NONE macros were
swapped, and this broke users that use the old return names.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20140421222346.0351ced4@gandalf.local.home
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
So far there's only x86 libdw unwind support merged in perf.
Disable it on all other architectures in case libdw unwind
support is detected in system.
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Josh Boyer <jwboyer@fedoraproject.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1397988006-14158-1-git-send-email-jolsa@redhat.com
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
If I unplug the eDP monitor, the BIOS of my machine will enable the
VDD bit, then when the driver loads it will think VDD is enabled. It
will detect that the eDP is not enabled and return false from
intel_edp_init_connector. This will trigger a call to
edp_panel_vdd_off_sync(), which trigger a WARN saying that the
refcount of the power domain is less than zero.
The problem happens because the driver gets a refcount whenever it
enables the VDD bit, and puts the refcount whenever it disables the
VDD bit. But on this case, the BIOS enabled VDD, so all we do is to
call put() without calling get() first, so the code added is there to
make sure we always have the get() in case the BIOS enabled the bit.
This regression was introduced in
commit e9cb81a228
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Thu Nov 21 13:47:23 2013 -0200
drm/i915: get a runtime PM reference when the panel VDD is on
v2: - Rebase
Tested-by: Chris Wilson <chris@chris-wilson.co.uk> (v1)
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org (v3.13+)
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
... our current modeset code isn't good enough yet to handle this. The
scenario is:
1. BIOS sets up a cloned config with lvds+external screen on the same
pipe, e.g. pipe B.
2. We read out that state for pipe B and assign the gmch_pfit state to
it.
3. The initial modeset switches the lvds to pipe A but due to lack of
atomic modeset we don't recompute the config of pipe B.
-> both pipes now claim (in the sw pipe config structure) to use the
gmch_pfit, which just won't work.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74081
Tested-by: max <manikulin@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Newer elantech touchpads are not recognized by the current driver, since it
fails to detect their firmware version number. This prevents more advanced
touchpad features from being usable such as two-finger scrolling. This
patch allows newer touchpads to be detected and be fully functional. Tested
on Sony Vaio SVF13N17PXB.
Signed-off-by: Jordan Rife <jrife0@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
When the system has zero or one button available, trying to rmmod
soc_button_array will cause crash. Fix this by properly handling -ENODEV
in probe().
Signed-off-by: Lejun Zhu <lejun.zhu@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Fix the platform data support for the at91 adc driver.
* A couple of related follow up patches get the support working again
for at91sam9260 and at91sam9g45 as the earlier patch results in a device
name change.
* A default timer value in the at91 adc driver was bonkers. Make it sane.
* Fix incorrect reporting of the integration time for the cm32181 light sensor
* Fix a missing break in the ad2s1200 driver which would have give a false
error return.
* Make sure buffer scan mask queries from userspace return 0/1 rather than
a fairly random value depending on their implementation of test_bit
* Fix leak of the i2c client and a null pointer dereference in the cm36651
driver.
* Fix a build warning on avr32 for the mxs-lradc (not exactly a critical
combination - but the issue was real).
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Merge tag 'iio-fixes-for-3.15a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
First found of IIO fixes for the 3.15 cycle.
* Fix the platform data support for the at91 adc driver.
* A couple of related follow up patches get the support working again
for at91sam9260 and at91sam9g45 as the earlier patch results in a device
name change.
* A default timer value in the at91 adc driver was bonkers. Make it sane.
* Fix incorrect reporting of the integration time for the cm32181 light sensor
* Fix a missing break in the ad2s1200 driver which would have give a false
error return.
* Make sure buffer scan mask queries from userspace return 0/1 rather than
a fairly random value depending on their implementation of test_bit
* Fix leak of the i2c client and a null pointer dereference in the cm36651
driver.
* Fix a build warning on avr32 for the mxs-lradc (not exactly a critical
combination - but the issue was real).
In the following commit:
commit 57673c2b0b
Author: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon Mar 31 14:39:57 2014 +1030
Use 'E' instead of 'X' for unsigned module taint flag.
One site has been forgotten in trace events module.h.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
CC: Steven Rostedt <rostedt@goodmis.org>
CC: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
1. Further PLL parameter fixes.
2. Fixes for HPD on DP
3. Could of different PM fixes
4. Disabling DPM on RV770
* 'drm-fixes-3.15' of git://people.freedesktop.org/~deathsimple/linux:
drm/radeon: don't allow runpm=1 on systems with out ATPX
drm/radeon: fix ATPX detection on non-VGA GPUs
drm/radeon/pm: don't walk the crtc list before it has been initialized (v2)
drm/radeon: properly unregister hwmon interface (v2)
drm/radeon: fix count in cik_sdma_ring_test()
drm/radeon/aux: fix hpd assignment for aux bus
drm/radeon: improve PLL limit handling in post div calculation
drm/radeon: use fixed PPL ref divider if needed
drm/radeon: disable dpm on rv770 by default
Fix e26a9e00af 'ARM: Better
virt_to_page() handling' replaced __pv_phys_offset with
__pv_phys_pfn_offset. Also note that size of __pv_phys_offset
was quad but size of __pv_phys_pfn_offset is word. Instruction
that used to update __pv_phys_offset which address is in r6
had to update low word of __pv_phys_offset so it used #LOW_OFFSET
macro for store offset. Now when size of __pv_phys_pfn_offset is
word, no difference between little endian and big endian should
exist - i.e no offset should be used when __pv_phys_pfn_offset
is stored.
Note that for little endian image proposed change is noop,
since in little endian case #LOW_OFFSET is defined 0 anyway.
Reported-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The switcher should not depend on MAX_CLUSTER to determine ifit should
be activated or not. In a multiplatform kernel binary it is possible to
have dual-cluster and quad-cluster platforms configured in. In that case
MAX_CLUSTER which is a build time limit should be 4 and that shouldn't
prevent the switcher from working if the kernel is booted on a b.L
dual-cluster system.
In bL_switcher_halve_cpus() we already have a runtime validation check
to make sure we're dealing with only two clusters, so booting on a quad
cluster system will be caught and switcher activation aborted.
However, the b.L switcher must ensure the MCPM layer is initialized on
the booted hardware before doing anything. The mcpm_is_available()
function is added to that effect.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Abhilash Kesavan <kesavan.abhilash@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
For vmcore generated by LPAE enabled kernel, user space
utility such as crash needs additional infomation to
parse.
So this patch add arch_crash_save_vmcoreinfo as what PAE enabled
i386 linux does.
Cc: <stable@vger.kernel.org>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Liu Hua <sdu.liu@huawei.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
In big-endian systems, "%1" get the most significant part of the value, cause the instruction to get the wrong result.
When viewing ftrace record in big-endian ARM systems, we found that
the timestamp errors:
swapper-0 [001] 1325.970000: 0:120:R ==> [001] 16:120:R events/1
events/1-16 [001] 1325.970000: 16:120:S ==> [001] 0:120:R swapper
swapper-0 [000] 1325.1000000: 0:120:R + [000] 15:120:R events/0
swapper-0 [000] 1325.1000000: 0:120:R ==> [000] 15:120:R events/0
swapper-0 [000] 1326.030000: 0:120:R + [000] 1150:120:R sshd
swapper-0 [000] 1326.030000: 0:120:R ==> [000] 1150:120:R sshd
When viewed ftrace records, it will call the do_div(n, base) function, which achieved arch/arm/include/asm/div64.h in. When n = 10000000, base = 1000000, in do_div(n, base) will execute "umull %Q0, %R0, %1, %Q2".
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Cc: <stable@vger.kernel.org> # 2.6.20+
Signed-off-by: Alex Wu <wuquanming@huawei.com>
Signed-off-by: Xiangyu Lu <luxiangyu@huawei.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Commit 0406a40a0 ("ASoC: jz4740: Use the generic dmaengine PCM driver")
jz4740-pcm.c file, but neglected to remove the Makefile entries.
Fixes: 0406a40a0 ("ASoC: jz4740: Use the generic dmaengine PCM driver")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Reported-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
fixup_user_fault() is used by the futex code when the direct user access
fails, and the futex code wants it to either map in the page in a usable
form or return an error. It relied on handle_mm_fault() to map the
page, and correctly checked the error return from that, but while that
does map the page, it doesn't actually guarantee that the page will be
mapped with sufficient permissions to be then accessed.
So do the appropriate tests of the vma access rights by hand.
[ Side note: arguably handle_mm_fault() could just do that itself, but
we have traditionally done it in the caller, because some callers -
notably get_user_pages() - have been able to access pages even when
they are mapped with PROT_NONE. Maybe we should re-visit that design
decision, but in the meantime this is the minimal patch. ]
Found by Dave Jones running his trinity tool.
Reported-by: Dave Jones <davej@redhat.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There were occasional ADSP crash during reboot testing:
[ 11.883364] BUG: unable to handle kernel paging request at ffffc90121700000
[ 11.883380] IP: [<ffffffffc024d8bc>] sst_module_insert_fixed_block+0x24f/0x26d [snd_soc_sst_dsp]
[ 11.883397] PGD 7800b067 PUD 0
[ 11.883405] Oops: 0002 [#1] SMP
[ 11.886418] gsmi: Log Shutdown Reason 0x03
The virtual address, ffffc90121700000, was out of range. The virtual
address is calculated by adding LPE base address with an offset:
sst_memcpy32(dsp->addr.lpe + data->offset, data->data, data->size);
The offset is calculated in sst_byt_parse_module, by subtraction of
two virtual addresses dsp->addr.fw_ext and dsp->addr.lpe:
block_data.offset = block->ram_offset + (dsp->addr.fw_ext - dsp->addr.lpe);
These virtual addresses are assigned by kernel from ioremap:
sst->addr.lpe = ioremap(pdata->lpe_base, pdata->lpe_size);
sst->addr.fw_ext = ioremap(pdata->fw_base, pdata->fw_size);
In current driver code, offset is defined as unsigned int32:
struct sst_module_data {
...
u32 offset; /* offset in FW file */
};
Most of the time kernel assigned virtual addresses with addr.fw_ext
greater than addr.lpe. But sometimes it was the other way round.
Fix the problem by declaring offset as signed int32_t.
Signed-off-by: Wenkai Du <wenkai.du@intel.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
There is a duplicated Kconfig entry for "kernel/power/Kconfig"
in menu "Power management options" and "CPU Power Management",
remove the one from menu "CPU Power Management" suggested by
Viresh.
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This fixes commit 6290b53de0 (arm64: compat: Wire up new AArch32 syscalls)
which did not update __NR_compat_syscalls accordingly.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: <stable@vger.kernel.org> # 3.14+
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
- Change a crucial semantic ordering in the GPIO irqchip
helpers.
- Fix two nasty regressions in the ACPI gpiolib extensions.
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Merge tag 'gpio-v3.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull gpio fixes from Linus Walleij:
"A small batch of GPIO fixes for the v3.15 series. I expect more to
come in but I'm a bit behind on mail, might as well get these to you
right now:
- Change a crucial semantic ordering in the GPIO irqchip helpers
- Fix two nasty regressions in the ACPI gpiolib extensions"
* tag 'gpio-v3.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio / ACPI: Prevent potential wrap of GPIO value on OpRegion read
gpio / ACPI: Don't crash on NULL chip->dev
gpio: set data first, then chip and handler
Pull x86 vdso fix from Peter Anvin:
"This is a single build fix for building with gold as opposed to GNU
ld. It got queued up separately and was expected to be pushed during
the merge window, but it got left behind"
* 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, vdso: Make the vdso linker script compatible with Gold
The AS3722_GPIO_INV bit will always be blindly overwritten by
as3722_pinctrl_gpio_set_direction() and will be ignored when
setting the value of the GPIO in as3722_gpio_set() since the
enable_gpio_invert flag is never set. This will cause an
initially inverted GPIO to toggle when requested as an output,
which could be problematic if, for example, the GPIO controls
a critical regulator.
Instead of setting up the enable_gpio_invert flag, just leave
the invert bit alone and check it before setting the GPIO value.
Cc: <stable@vger.kernel.org> # v3.14+
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Some newer PX laptops have the pci device class
set to DISPLAY_OTHER rather than DISPLAY_VGA. This
properly detects ATPX on those laptops.
Based on a patch from: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Cc: airlied@gmail.com
Avoids a crash in certain cases when thermal irqs are generated
before the display structures have been initialized.
v2: fix the vblank and vrefresh helpers as well
bug:
https://bugzilla.kernel.org/show_bug.cgi?id=73931
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
In the TB10x pin database, a port index of -1 is used to indicate
unmuxed GPIO pin groups. This bug fixes a 'cast to unsigned' bug of
this value.
Thanks to Dan Carpenter for highlighting this.
CC: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Bjorn Helgaas