This commit makes uses of_property_read_bool() to read
boolean properties. This is just cosmetic cleanup.
Signed-off-by: Ben Gamari <bgamari.foss@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There is an undocumented upper bound for the total number of ff effects:
FF_GAIN (= 96).
This can be found as follows:
- user: write(EV_FF, effect_id, iterations)
calls kernel: ff->playback(effect_id, ...): starts effect "effect_id"
- user: write(EV_FF, FF_GAIN, gain)
calls kernel: ff->set_gain(gain, ...): sets gain
A collision occurs when effect_id equals FF_GAIN.
According to input_ff_event(),
FF_GAIN is the smallest value where a collision occurs.
Therefore the greatest safe value for effect_id is FF_GAIN - 1,
and thus the total number of effects should never exceed FF_GAIN.
Define FF_MAX_EFFECTS as FF_GAIN and check on this limit in ff-core.
Signed-off-by: Elias Vanderstuyft <elias.vds@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Just like the EVIOCSABS(abs) macro, use the more compact
_IOW(..., type) instead of _IOC(_IOC_WRITE, ..., sizeof(type))
for the EVIOCSFF macro.
Signed-off-by: Elias Vanderstuyft <elias.vds@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add a symlink to uapi/linux/linux-event-codes.h, and include that
instead of (re)defining all the evdev type and code values in
dt-bindings/input/input.h. This way we do not need to keep all the event
codes synced manually.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add input-event-codes header file and move all type and axis defines
there.
The purpose of this new header file is to have a single canonical source
for event-codes which can be used outside of C-code too. One example of
such usage is the use of event-codes in devicetree source files.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add rcg and branch clk structs for DSI1 and DSI2 blocks found in MSM8960
and APQ8064. Each DSI instance has 4 pairs of rcg and branch clocks.
Populate arrays mmcc_msm8960_clks and mmcc_apq8064_clks with these clocks.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
DSI specific RCG clocks required customized clk_ops. There are
a total of 4 RCGs per DSI block: DSI, BYTE, ESC and PIXEL.
There are a total of 2 clocks coming from the DSI PLL, which serve as
inputs to these RCGs. The BYTE and ESC RCGs are fed by one of the
post dividers of DSI1 or DSI2 PLLs, and the DSI and PIXEL RCGs are fed by
another divider of the PLL.
In each of the 2 groups above, only one of the clocks sets its parent.
These are BYTE RCG and DSI RCG for each of the groups respectively, as
shown in the diagram below.
The DSI and BYTE RCGs serve as bypass clocks. We create a new set of ops
clk_rcg_bypass2_ops, which are like the regular bypass ops, but don't
take in a freq table, since the DSI driver using these clocks is
parent-able.
The PIXEL RCG needs to derive the required pixel clock using dsixpll.
It parses a m/n frac table to retrieve the correct clock.
The ESC RCG doesn't have a frac M/N block, it can just apply a pre-
divider. Its ops simply check if the required clock rate can be
achieved by the pre-divider.
+-------------------+
| |---dsixpllbyte---o---> To byte RCG
| | | (sets parent rate)
| | |
| | |
| DSI 1/2 PLL | |
| | o---> To esc RCG
| | (doesn't set parent rate)
| |
| |----dsixpll-----o---> To dsi RCG
+-------------------+ | (sets parent rate)
( x = 1, 2 ) |
|
o---> To pixel rcg
(doesn't set parent rate)
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
the new ti 32k clocksource driver should depend on
GENERIC_CLOCKSOURCE because of its reliance on
sched_clock_register().
Let's enable that to avoid any possible build errors
and/or warnings on randbuilds.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
When CONFIG_PM is not set we get following compilation warnings:
warning: ‘byt_gpio_runtime_suspend’ defined but not used [-Wunused-function]
warning: ‘byt_gpio_runtime_resume’ defined but not used [-Wunused-function]
Fix this by guarding byt_gpio_runtime_suspend()/byt_gpio_runtime_resume()
with #ifdef CONFIG_PM.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We get following warning when CONFIG_PM_SLEEP is not set
warning: ‘intel_gpio_irq_init’ defined but not used [-Wunused-function]
Since the function is only called from intel_pinctrl_resume() move it
inside CONFIG_PM_SLEEP guard as well.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The flag matches the DT GPIO_SINGLE_ENDED flag and allows drivers to
parse and use the DT flag to handle single-ended (open-drain or
open-source) GPIOs.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
When requesting a GPIO through the legacy or the gpiod_* API the
gpiochip request operation is first called and then the GPIO flags are
parsed and the GPIO is configured. This prevents the gpiochip from
rejecting the request if the flags are not supported by the device.
To fix this split the parse-and-configure operation in two and parse
flags before requesting the GPIO.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The DEBUG_FS=n #defines for the dbg_show functions were missed when
renaming the driver from msm_ to pm8xxx_, causing it to break the build
when DEBUG_FS isn't enabled:
CC [M] drivers/pinctrl/qcom/pinctrl-ssbi-gpio.o
drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c:597:14: error: ‘pm8xxx_gpio_dbg_show’ undeclared here (not in a function)
.dbg_show = pm8xxx_gpio_dbg_show,
Fix this by renaming them correctly.
Fixes: b4c45fe974 ("pinctrl: qcom: ssbi: Family A gpio & mpp drivers")
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
On systems that initialize the intel_pstate driver with the performance
governor, and then switch to the powersave governor will not transition to
lower cpu frequencies until /sys/devices/system/cpu/intel_pstate/min_perf_pct
is set to a low value.
The behavior of governor switching changed after commit a04759924e
("[cpufreq] intel_pstate: honor user space min_perf_pct override on
resume"). The commit introduced tracking of performance percentage
changes via sysfs in order to restore userspace changes during
suspend/resume. The problem occurs because the global values of the newly
introduced max_sysfs_pct and min_sysfs_pct are not lowered on the governor
change and this causes the powersave governor to inherit the performance
governor's settings.
A simple change would have been to reset max_sysfs_pct to 100 and
min_sysfs_pct to 0 on a governor change, which fixes the problem with
governor switching. However, since we cannot break userspace[1] the fix
is now to give each governor its own limits storage area so that governor
specific changes are tracked.
I successfully tested this by booting with both the performance governor
and the powersave governor by default, and switching between the two
governors (while monitoring /sys/devices/system/cpu/intel_pstate/ values,
and looking at the output of cpupower frequency-info). Suspend/Resume
testing was performed by Doug Smythies.
[1] Systems which suspend/resume using the unmaintained pm-utils package
will always transition to the performance governor before the suspend and
after the resume. This means a system using the powersave governor will
go from powersave to performance, then suspend/resume, performance to
powersave. The simple change during governor changes would have been
overwritten when the governor changed before and after the suspend/resume.
I have submitted https://bugzilla.redhat.com/show_bug.cgi?id=1271225
against Fedora to remove the 94cpufreq file that causes the problem. It
should be noted that pm-utils is obsoleted with newer versions of systemd.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Kristen Carlson Accardi <kristen@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Broxton CPU ID for the RAPL driver.
Signed-off-by: Amy Wiles <amy.l.wiles@intel.com>
[ rjw: Subject and changelog. ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Replace all trivial request/free callbacks that do nothing but call into
pinctrl code with the generic versions.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Andrew Bresticker <abrestic@chromium.org>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Lee Jones <lee@kernel.org>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Use common interface to simplify PCI host bridge implementation.
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Use common interface to simplify ACPI PCI host bridge implementation.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reset acpi_root_dev->domain to 0 when pci_ignore_seg is set to keep
consistence between ACPI PCI root device and PCI host bridge device.
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Introduce common interface acpi_pci_root_create() and related data
structures to create PCI root bus for ACPI PCI host bridges. It will
be used to kill duplicated arch specific code for IA64 and x86. It may
also help ARM64 in future.
Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Use common struct resource_entry to replace private
struct iospace_resource.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Use common ACPI resource parsing interface to parse ACPI resources for
PCI host bridge, so we could share more code between IA64 and x86.
Later we will consolidate arch specific implementations into ACPI core.
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Enhance ACPI resource parsing interfaces to support sparse IO space,
which will be used to share common code between x86 and IA64 later.
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Instead of storing in the chip data whether the chip uses pinctrl and
conditionally call pinctrl_{request,free}_gpio, just don't populate
request/free in that case.
This makes the implementations trivial and the same as the generic
implementations, thus we can just use them.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Instead of storing in the chip data whether the chip uses pinctrl and
conditionally call pinctrl_{request,free}_gpio, just don't populate
request/free in that case.
This makes the implementations trivial and the same as the generic
implementations, thus we can just use them.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Replace all trivial request/free callbacks that do nothing but call into
pinctrl code with the generic versions.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Stefan Agner <stefan@agner.ch>
Acked-by: Joachim Eastwood <manabian@gmail.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Provide generic request/free implementations that pinctrl aware gpio
drivers can use instead of open coding if they use a 1:1 pin to gpio
signal mapping.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
one for a v4.3-rc5 thinko in DM snapshot).
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Merge tag 'dm-4.3-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
"Two DM target error path cleanup fixes (one for stable in DM thinp and
one for a v4.3-rc5 thinko in DM snapshot)"
* tag 'dm-4.3-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm thin: fix missing pool reference count decrement in pool_ctr error path
dm snapshot persistent: fix missing cleanup in persistent_ctr error path
When truncating a file to a smaller size which consists of an inline
extent that is compressed, we did not discard (or made unusable) the
data between the new file size and the old file size, wasting metadata
space and allowing for the truncated data to be leaked and the data
corruption/loss mentioned below.
We were also not correctly decrementing the number of bytes used by the
inode, we were setting it to zero, giving a wrong report for callers of
the stat(2) syscall. The fsck tool also reported an error about a mismatch
between the nbytes of the file versus the real space used by the file.
Now because we weren't discarding the truncated region of the file, it
was possible for a caller of the clone ioctl to actually read the data
that was truncated, allowing for a security breach without requiring root
access to the system, using only standard filesystem operations. The
scenario is the following:
1) User A creates a file which consists of an inline and compressed
extent with a size of 2000 bytes - the file is not accessible to
any other users (no read, write or execution permission for anyone
else);
2) The user truncates the file to a size of 1000 bytes;
3) User A makes the file world readable;
4) User B creates a file consisting of an inline extent of 2000 bytes;
5) User B issues a clone operation from user A's file into its own
file (using a length argument of 0, clone the whole range);
6) User B now gets to see the 1000 bytes that user A truncated from
its file before it made its file world readbale. User B also lost
the bytes in the range [1000, 2000[ bytes from its own file, but
that might be ok if his/her intention was reading stale data from
user A that was never supposed to be public.
Note that this contrasts with the case where we truncate a file from 2000
bytes to 1000 bytes and then truncate it back from 1000 to 2000 bytes. In
this case reading any byte from the range [1000, 2000[ will return a value
of 0x00, instead of the original data.
This problem exists since the clone ioctl was added and happens both with
and without my recent data loss and file corruption fixes for the clone
ioctl (patch "Btrfs: fix file corruption and data loss after cloning
inline extents").
So fix this by truncating the compressed inline extents as we do for the
non-compressed case, which involves decompressing, if the data isn't already
in the page cache, compressing the truncated version of the extent, writing
the compressed content into the inline extent and then truncate it.
The following test case for fstests reproduces the problem. In order for
the test to pass both this fix and my previous fix for the clone ioctl
that forbids cloning a smaller inline extent into a larger one,
which is titled "Btrfs: fix file corruption and data loss after cloning
inline extents", are needed. Without that other fix the test fails in a
different way that does not leak the truncated data, instead part of
destination file gets replaced with zeroes (because the destination file
has a larger inline extent than the source).
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"
tmp=/tmp/$$
status=1 # failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15
_cleanup()
{
rm -f $tmp.*
}
# get standard environment, filters and checks
. ./common/rc
. ./common/filter
# real QA test starts here
_need_to_be_root
_supported_fs btrfs
_supported_os Linux
_require_scratch
_require_cloner
rm -f $seqres.full
_scratch_mkfs >>$seqres.full 2>&1
_scratch_mount "-o compress"
# Create our test files. File foo is going to be the source of a clone operation
# and consists of a single inline extent with an uncompressed size of 512 bytes,
# while file bar consists of a single inline extent with an uncompressed size of
# 256 bytes. For our test's purpose, it's important that file bar has an inline
# extent with a size smaller than foo's inline extent.
$XFS_IO_PROG -f -c "pwrite -S 0xa1 0 128" \
-c "pwrite -S 0x2a 128 384" \
$SCRATCH_MNT/foo | _filter_xfs_io
$XFS_IO_PROG -f -c "pwrite -S 0xbb 0 256" $SCRATCH_MNT/bar | _filter_xfs_io
# Now durably persist all metadata and data. We do this to make sure that we get
# on disk an inline extent with a size of 512 bytes for file foo.
sync
# Now truncate our file foo to a smaller size. Because it consists of a
# compressed and inline extent, btrfs did not shrink the inline extent to the
# new size (if the extent was not compressed, btrfs would shrink it to 128
# bytes), it only updates the inode's i_size to 128 bytes.
$XFS_IO_PROG -c "truncate 128" $SCRATCH_MNT/foo
# Now clone foo's inline extent into bar.
# This clone operation should fail with errno EOPNOTSUPP because the source
# file consists only of an inline extent and the file's size is smaller than
# the inline extent of the destination (128 bytes < 256 bytes). However the
# clone ioctl was not prepared to deal with a file that has a size smaller
# than the size of its inline extent (something that happens only for compressed
# inline extents), resulting in copying the full inline extent from the source
# file into the destination file.
#
# Note that btrfs' clone operation for inline extents consists of removing the
# inline extent from the destination inode and copy the inline extent from the
# source inode into the destination inode, meaning that if the destination
# inode's inline extent is larger (N bytes) than the source inode's inline
# extent (M bytes), some bytes (N - M bytes) will be lost from the destination
# file. Btrfs could copy the source inline extent's data into the destination's
# inline extent so that we would not lose any data, but that's currently not
# done due to the complexity that would be needed to deal with such cases
# (specially when one or both extents are compressed), returning EOPNOTSUPP, as
# it's normally not a very common case to clone very small files (only case
# where we get inline extents) and copying inline extents does not save any
# space (unlike for normal, non-inlined extents).
$CLONER_PROG -s 0 -d 0 -l 0 $SCRATCH_MNT/foo $SCRATCH_MNT/bar
# Now because the above clone operation used to succeed, and due to foo's inline
# extent not being shinked by the truncate operation, our file bar got the whole
# inline extent copied from foo, making us lose the last 128 bytes from bar
# which got replaced by the bytes in range [128, 256[ from foo before foo was
# truncated - in other words, data loss from bar and being able to read old and
# stale data from foo that should not be possible to read anymore through normal
# filesystem operations. Contrast with the case where we truncate a file from a
# size N to a smaller size M, truncate it back to size N and then read the range
# [M, N[, we should always get the value 0x00 for all the bytes in that range.
# We expected the clone operation to fail with errno EOPNOTSUPP and therefore
# not modify our file's bar data/metadata. So its content should be 256 bytes
# long with all bytes having the value 0xbb.
#
# Without the btrfs bug fix, the clone operation succeeded and resulted in
# leaking truncated data from foo, the bytes that belonged to its range
# [128, 256[, and losing data from bar in that same range. So reading the
# file gave us the following content:
#
# 0000000 a1 a1 a1 a1 a1 a1 a1 a1 a1 a1 a1 a1 a1 a1 a1 a1
# *
# 0000200 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a
# *
# 0000400
echo "File bar's content after the clone operation:"
od -t x1 $SCRATCH_MNT/bar
# Also because the foo's inline extent was not shrunk by the truncate
# operation, btrfs' fsck, which is run by the fstests framework everytime a
# test completes, failed reporting the following error:
#
# root 5 inode 257 errors 400, nbytes wrong
status=0
exit
Cc: stable@vger.kernel.org
Signed-off-by: Filipe Manana <fdmanana@suse.com>
The the pin groups and pin functions have been changed
in atlas7 step B soc. We have to update the driver
to support step B chip.
Changes:
1. add 5 jtag pins to IOC_TOP:
"jtag_tdo", "jtag_tms","jtag_tck", "jtag_tdi", "jtag_trstn"
these 5 pins can be mutiplex with other functions, so we
have to conver these 5 pins in pinmux.
2. add pin groups for audio digmic, audio spdif, can transceiver
en, can transceiver stb, i2s0, i2s1 and jtag.
3. serval pins can be located to more PADs:
audio_uart0_urfs, audio_uart1_urfs, audio_uart2_urfs,
audio_uart2_urxd, audio_uart2_usclk, audio_uart2_utfs,
audio_uart2_utxd, can0_rxd, can0_txd, can1_rxd, can1_txd
jtag_ntrst, jtag_swdiotms, jtag_tck, jtag_tdi, jtag_tdo,
pw_cko0, pw_cko1, pw_i2s01, pw_pwm0, pw_pwm1, sd2_cdb,
sd2_wpb, uart2_cts, uart2_rts, uart2_rxd, uart2_txd,
uart3_cts, uart3_rts, uart3_rxd, uart3_txd, uart4_cts,
uart4_rts, usb0_drvvbus, usb1_drvvbus.
Because of Changes#3, some functions should have more than one
pin groups. So we have to split the original pin group to serval
pin groups.
For example:
audio_uart0 has 5 pins, on STEPA, each of these 5 pins only has
one related PAD. But on STEPB, audio_uart0_urfs has 4 related
PAD.
So we place the 4 pins with one PAD into a single pin group:
audio_uart0_basic_group.
and place urfs pin wtih different PADs to 4 different pin groups:
audio_uart0_urfs_group0, ..., audio_uart0_urfs_group3
A full audio_uart0 pin group can be:
pinctrl-0 = <&audio_uart0_basic_group &audio_uart0_urfs_group0>;
If audio_uart0 pin group encountered some confiction, we only have
to change the urfs group:
pinctrl-0 = <&audio_uart0_basic_group &audio_uart0_urfs_group2>;
Signed-off-by: Wei Chen <Wei.Chen@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Pull btrfs fixes from Chris Mason:
"I have two more bug fixes for btrfs.
My commit fixes a bug we hit last week at FB, a combination of lots of
hard links and an admin command to resolve inode numbers.
Dave is adding checks to make sure balance on current kernels ignores
filters it doesn't understand. The penalty for being wrong is just
doing more work (not crashing etc), but it's a good fix"
* 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
btrfs: fix use after free iterating extrefs
btrfs: check unsupported filters in balance arguments
Pull Ceph fixes from Sage Weil:
"Just two small items from Ilya:
The first patch fixes the RBD readahead to grab full objects. The
second fixes the write ops to prevent undue promotion when a cache
tier is configured on the server side"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
rbd: use writefull op for object size writes
rbd: set max_sectors explicitly
From code inspection, it appears to be unsafe to do a read-modify-write
of PCGCTL in dwc2_port_resume(). Let's make sure the spinlock is held
around this operation.
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
With omap5-board-common.dtsi, we can now easily add support for various omap5
board variants. Let's add minimal support for isee igepv5.
So far I've tested that basic things work, such as serial, USB Ethernet, HDMI
and WLAN.
Note that like omap5-uevm, these boards seem to need to reserve 16MB for a
trap section as in commit 03178c66d2 ("ARM: dts: omap5-evm: Update
available memory to 2032 MB") and also noted in a u-boot commit at
http://marc.info/?l=u-boot&m=134376852603255 and also at
http://patchwork.ozlabs.org/patch/159881/.
Not sure why this is not needed for omap5-cm-t54.dts, maybe because of
different u-boot configuration.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Looks like thevarious omap5-uevm models and igepv5 are very similar. So let's
create omap5-board-common.dtsi to allow fixing up things properly for mainline
kernel to support all these.
Even if we eventually end up having only PMIC + MMC + eMMC + SDIO WLAN + SATA +
USB + HDMI configuration in the omap5-board-common.dtsi, this is the easiest
way to add support for other boards rather than diffing various versions of
out of tree dts files.
My guess is that also omap5-sbc-t54.dts can use this, but I don't have that
board so that will need to be dealt with later on.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Commit 99f84cae43 ("ARM: dts: add wl12xx/wl18xx bindings") added
device tree bindings for the TI WLAN SDIO on many omap variants.
I recall wondering how come omap5-uevm did not have the WLAN
added and this issue has been bugging me for a while now, and
I finally tracked it down to a bad pinmux regression, and a missing
deferred probe handling for the 32k clock from palmas that's
requested by twl6040.
Basically 392adaf796 ("ARM: dts: omap5-evm: Add mcspi data")
added pin muxing for mcspi4 that conflicts with the onboard
WLAN. While some omap5-uevm don't have WLAN populated, the
pins are not reused for other devices. And as the SDIO bus
should be probed, let's try to enable WLAN by default.
Let's fix the regression and add the WLAN configuration as
done for the other boards in 99f84cae43 ("ARM: dts: add
wl12xx/wl18xx bindings"). And let's use the new MMC pwrseq for
the 32k clock as suggested by Javier Martinez Canillas
<javier@dowhile0.org>.
Note that without a related deferred probe fix for twl6040,
the 32k clock is not initialized if palmas-clk is a module
and twl6040 is built-in.
Let's also use the generic "non-removable" instead of the
legacy "ti,non-removable" property while at it.
And finally, note that omap5 seems to require WAKEUP_EN for
the WLAN GPIO interrupt.
Fixes: 392adaf796 ("ARM: dts: omap5-evm: Add mcspi data")
Cc: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
- Fix a regression introduced by a recent ACPICA cleanup that
uncovered a latent bug (Lv Zheng).
- Fix a recent regression in the generic power domains framework
that may cause it to violate PM QoS latency constraints in some
cases (Ulf Hansson).
- Fix an intel_pstate driver crash on the Knights Landing chips
that do not update the MPERF counter as often as expected by the
driver which may result in a divide by 0 (Srinivas Pandruvada).
/
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Merge tag 'pm+acpi-4.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael Wysocki:
"These fix two recent regressions (ACPICA, the generic power domains
framework) and one crash that may happen on specific hardware
supported since 4.1 (intel_pstate).
Specifics:
- Fix a regression introduced by a recent ACPICA cleanup that
uncovered a latent bug (Lv Zheng).
- Fix a recent regression in the generic power domains framework that
may cause it to violate PM QoS latency constraints in some cases
(Ulf Hansson).
- Fix an intel_pstate driver crash on the Knights Landing chips that
do not update the MPERF counter as often as expected by the driver
which may result in a divide by 0 (Srinivas Pandruvada)"
* tag 'pm+acpi-4.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: intel_pstate: Fix divide by zero on Knights Landing (KNL)
ACPICA: Tables: Fix FADT dependency regression
PM / Domains: Fix validation of latency constraints in genpd governor
Pull drm fixes from Dave Airlie:
"Nothing too crazy or exciting:
- two MAINTAINERS entries that I didn't see the point in delaying.
- one drm mst fix to stop sending uninitialised data to monitors
- two amdgpu fixes
- one radeon mst tiling fix
- one vmwgfx regression fix
- one virtio warning fix.
I have found one locking problem that needs a bit of reorg to fix, but
I'm not sure it's worth putting in -fixes as I don't think we've seen
it hit in the real world ever, I just found it using the virtio-gpu
driver when working on it. I'll possibly send it next week once I've
time to discuss with Daniel"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/virtio: use %llu format string form atomic64_t
MAINTAINERS: Add myself as maintainer for the gma500 driver
MAINTAINERS: add a maintainer for the atmel-hlcdc DRM driver
drm/amdgpu: Keep the pflip interrupts always enabled v7
drm/amdgpu: adjust default dispclk (v2)
drm/dp/mst: make mst i2c transfer code more robust.
drm/radeon: attach tile property to mst connector
drm/vmwgfx: Fix kernel NULL pointer dereference on older hardware
On boards with more than 2GB of RAM booting goes wrong with things not
working and we're getting lots of l3 warnings:
WARNING: CPU: 0 PID: 1 at drivers/bus/omap_l3_noc.c:147
l3_interrupt_handler+0x260/0x384()
44000000.ocp:L3 Custom Error: MASTER MMC6 TARGET DMM1 (Idle):
Data Access in User mode during Functional access
...
[<c044e158>] (scsi_add_host_with_dma) from [<c04705c8>]
(ata_scsi_add_hosts+0x5c/0x18c)
[<c04705c8>] (ata_scsi_add_hosts) from [<c046b13c>]
(ata_host_register+0x150/0x2cc)
[<c046b13c>] (ata_host_register) from [<c046b38c>]
(ata_host_activate+0xd4/0x124)
[<c046b38c>] (ata_host_activate) from [<c047f42c>]
(ahci_host_activate+0x5c/0x194)
[<c047f42c>] (ahci_host_activate) from [<c0480854>]
(ahci_platform_init_host+0x1f0/0x3f0)
[<c0480854>] (ahci_platform_init_host) from [<c047c9dc>]
(ahci_probe+0x70/0x98)
[<c047c9dc>] (ahci_probe) from [<c04220cc>]
(platform_drv_probe+0x54/0xb4)
Let's fix the issue by enabling ZONE_DMA for LPAE. Note that we need to
limit dma_zone_size to 2GB as the rest of the RAM is beyond the 4GB limit.
Let's also fix things for dra7 as done in similar patches in the TI tree
by Lokesh Vutla <lokeshvutla@ti.com>.
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
- Re-enable CONFIG_SCSI_DH in our defconfigs
- Remove unused os_area_db_id_video_mode
- cxl: fix leak of IRQ names in cxl_free_afu_irqs() from Andrew
- cxl: fix leak of ctx->irq_bitmap when releasing context via kernel API from Andrew
- cxl: fix leak of ctx->mapping when releasing kernel API contexts from Andrew
- cxl: Workaround malformed pcie packets on some cards from Philippe
- cxl: Fix number of allocated pages in SPA from Christophe Lombard
- Fix checkstop in native_hpte_clear() with lockdep from Cyril
- Panic on unhandled Machine Check on powernv from Daniel
- selftests/powerpc: Fix build failure of load_unaligned_zeropad test
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Merge tag 'powerpc-4.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Re-enable CONFIG_SCSI_DH in our defconfigs
- Remove unused os_area_db_id_video_mode
- cxl: fix leak of IRQ names in cxl_free_afu_irqs() from Andrew
- cxl: fix leak of ctx->irq_bitmap when releasing context via kernel API from Andrew
- cxl: fix leak of ctx->mapping when releasing kernel API contexts from Andrew
- cxl: Workaround malformed pcie packets on some cards from Philippe
- cxl: Fix number of allocated pages in SPA from Christophe Lombard
- Fix checkstop in native_hpte_clear() with lockdep from Cyril
- Panic on unhandled Machine Check on powernv from Daniel
- selftests/powerpc: Fix build failure of load_unaligned_zeropad test
* tag 'powerpc-4.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
selftests/powerpc: Fix build failure of load_unaligned_zeropad test
powerpc/powernv: Panic on unhandled Machine Check
powerpc: Fix checkstop in native_hpte_clear() with lockdep
cxl: Fix number of allocated pages in SPA
cxl: Workaround malformed pcie packets on some cards
cxl: fix leak of ctx->mapping when releasing kernel API contexts
cxl: fix leak of ctx->irq_bitmap when releasing context via kernel API
cxl: fix leak of IRQ names in cxl_free_afu_irqs()
powerpc/ps3: Remove unused os_area_db_id_video_mode
powerpc/configs: Re-enable CONFIG_SCSI_DH
These drivers only have runtime but no build time dependencies so can be
built for testing purposes if the Kconfig COMPILE_TEST option is enabled.
This is useful to have more build coverage and make sure that drivers are
not affected by changes that could cause build regressions.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
When calling __clk_get_name() on a const clock:
warning: passing argument 1 of '__clk_get_name' discards 'const' qualifier from pointer target type
include/linux/clk-provider.h:613:13: note: expected 'struct clk *' but argument is of type 'const struct clk *'
__clk_get_name() does not modify the passed clock, hence make it const.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The z2 machine calls pxa27x_set_pwrmode() in order to power off
the machine, but this function gets discarded early at boot because
it is marked __init, as pointed out by kbuild:
WARNING: vmlinux.o(.text+0x145c4): Section mismatch in reference from the function z2_power_off() to the function .init.text:pxa27x_set_pwrmode()
The function z2_power_off() references
the function __init pxa27x_set_pwrmode().
This is often because z2_power_off lacks a __init
annotation or the annotation of pxa27x_set_pwrmode is wrong.
This removes the __init section modifier to fix rebooting and the
build error.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: ba4a90a6d8 ("ARM: pxa/z2: fix building error of pxa27x_cpu_suspend() no longer available")
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
This fixes the following sparse warnings:
arch/arm/mach-pxa/raumfeld.c:510:24: warning: symbol 'raumfeld_w1_gpio_device' was not declared. Should it be static?
arch/arm/mach-pxa/raumfeld.c:632:31: warning: symbol 'raumfeld_spi_platform_data' was not declared. Should it be static?
arch/arm/mach-pxa/raumfeld.c:851:28: warning: symbol 'audio_va_initdata' was not declared. Should it be static?
arch/arm/mach-pxa/raumfeld.c:883:28: warning: symbol 'audio_dummy_initdata' was not declared. Should it be static?
arch/arm/mach-pxa/raumfeld.c:931:28: warning: symbol 'max8660_v6_subdev_data' was not declared. Should it be static?
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
r8a7778_rates[] and r8a7778_divs[] are only used in clk-r8a7778.c, and
never modified.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
