Commit graph

661,541 commits

Author SHA1 Message Date
Helge Deller
83b5d1e3d3 parisc, parport_gsc: Fixes for printk continuation lines
Signed-off-by: Helge Deller <deller@gmx.de>
2017-01-28 21:54:21 +01:00
Alex Williamson
7184f5b451 PCI: Add ACS quirk for Intel Union Point
Intel 200-series chipsets have the same errata as 100-series: the ACS
capability doesn't follow the PCIe spec, the capability and control
registers are dwords rather than words.  Add PCIe root port device IDs to
existing quirk.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-01-28 14:46:02 -06:00
Linus Torvalds
d56a5ca366 NFS client bugfixes for Linux 4.10
Stable patches:
 - NFSv4.1: Fix a deadlock in layoutget
 - NFSv4 must not bump sequence ids on NFS4ERR_MOVED errors
 - NFSv4 Fix a regression with OPEN EXCLUSIVE4 mode
 - Fix a memory leak when removing the SUNRPC module
 
 Bugfixes:
 - Fix a reference leak in _pnfs_return_layout
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJYjM6UAAoJEGcL54qWCgDy+WoP/2NdwqzOa3xxn8piMhLh/TLJ
 lxWfVmUZJ8UNVSVl45NDslt2V63P0gpITUiaVo27rPfjKV8pv8XTU7HkxCuXzj0m
 uo11jEErsYxbXELNDL2y1fmsPTygYvg4MAV3NK0inKv/ciu6TTMddoga+QQXGJPz
 QqQ7znTHyjDSTqZM1D5+f8EhbY7AIAzJbkgVr90WPPjsT6YtdlTQpMb1O9tlDtfj
 oYidIOxRphqLOYTdoD8NW4x19dlgTNIYyCgOFomCbpUTFKKK5RFjVy+bpml3NxV1
 oUldw8lhiUE8x/5J/CfbCMt1bPZ3yJeFWNghINOIF7cgGnvKEjw0uO2o8Lk6fMzi
 yF2aNoZcNQnyoHHCjsqK8t5dB51abwxlzeElrFB1u73B56CcXB91xEP0GsX1vFt1
 BIGCnfsOvtYPZxp/OX+B3AweAJ2DRuIvdze9cS2IeHBW9c5XdVdDmMK7CFeL9dc3
 YEsWmaWNWtDt41erxCvQ0ezkr3lPHXOcjwS440LIiVpr38/rzjp81+Tf+i2D1GzB
 XTsy9IHzaC2zLb0Vz5vOR3S10k4OiFtXT6ikoZLwgpTfI2gt146e0YHx3g90AiFh
 QYBRNLJrjSYVedjv2GGFLG1WWsHbhbP6dpmT3BwNmhZTzjPoqZ76f5QFIQUya4jt
 4Y2ksyhx7pOeOJy++6SN
 =S5qH
 -----END PGP SIGNATURE-----

Merge tag 'nfs-for-4.10-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "Stable patches:
   - NFSv4.1: Fix a deadlock in layoutget
   - NFSv4 must not bump sequence ids on NFS4ERR_MOVED errors
   - NFSv4 Fix a regression with OPEN EXCLUSIVE4 mode
   - Fix a memory leak when removing the SUNRPC module

  Bugfixes:
   - Fix a reference leak in _pnfs_return_layout"

* tag 'nfs-for-4.10-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  pNFS: Fix a reference leak in _pnfs_return_layout
  nfs: Fix "Don't increment lock sequence ID after NFS4ERR_MOVED"
  SUNRPC: cleanup ida information when removing sunrpc module
  NFSv4.0: always send mode in SETATTR after EXCLUSIVE4
  nfs: Don't increment lock sequence ID after NFS4ERR_MOVED
  NFSv4.1: Fix a deadlock in layoutget
2017-01-28 11:50:17 -08:00
Linus Torvalds
dd55396267 Merge tag 'md/4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
Pull MD fixes from Shaohua Li:
 "This fixes several corner cases for raid5 cache, which is merged into
  this cycle"

* tag 'md/4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
  md/r5cache: disable write back for degraded array
  md/r5cache: shift complex rmw from read path to write path
  md/r5cache: flush data only stripes in r5l_recovery_log()
  md/raid5: move comment of fetch_block to right location
  md/r5cache: read data into orig_page for prexor of cached data
  md/raid5-cache: delete meaningless code
2017-01-28 11:09:04 -08:00
Linus Torvalds
64a172d265 - Fix kernel panic on ACPI-based systems where CPU capacity description
is not currently handled
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJYjHDtAAoJEGvWsS0AyF7x8dAP/1WL/oDMrymUMymL94Y/79oh
 dzMcfsrDCsN7alxs5remTYUtcmkc0LsoBqhzkgA42tj80mfXDSUlUuFtG7iBrnTH
 JcMb4VUlzdxHQjmyAGV35JTzVS9dlpyh1inP7OXqlJ+dcD4IqaoLj6eYdE4YQjCE
 ERsQw+TR0sIyaA9GnfZ1iTuWp1CKHv4128uMqJrMT3yPb0mU6XuAnkgwfqOdLdz9
 YlSABW/vRICGlYdymSURnIOdeuEevspZhqXFJOe0Oq3ML6Worox5dpXY924llHrp
 O3synTDjunWFDFDB2pugefdbG5Wbq4D4egkhikrZ4r99K1/GRaACzfxPeZB5cGGI
 U4n4fdxblkrSiWBi57CuyBSIarDvMpyzbypo/z/RlFjw5abv7bmTLbj85KL1g/C3
 Y7gcE8B3IPDS3KlgOp+N/A3DFQc4xHqEKE1kgAoe2RBYhybQQLzvtKF5aI9zI2xr
 8at9i5oWjTAIDXaNR2q9xIuvk1aR3QNavS2y/Gzd+UlhP0M3iLXugZca96Lva07r
 de4m2ubqrZlvAwQtyJRuV6khLnrT3Cqc6RNWqLXfJKg0awb0or9/wilQPB0AnPkX
 OrvF0m6WJvcqecdzRhwahQhJhtnprKOOrFzlgO434/OUgI0yD7apVqGeZP0p+If8
 YDEE3Avx4M6u9i1UcOyz
 =syme
 -----END PGP SIGNATURE-----

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fix from Catalin Marinas:
 "Fix kernel panic on ACPI-based systems where CPU capacity description
  is not currently handled"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: skip register_cpufreq_notifier on ACPI-based systems
2017-01-28 11:06:42 -08:00
Linus Torvalds
ef1dce990b ARC fixes for 4.10-rc6
- Fix for unaligned access emulation corner case
 
  - fix for udelay loop inline asm regression
 
  - Fix irq affinity finally for AXS103 board [Yuriy]
 
  - Final fixes for setting IO-coherency sanely in SMP
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJYi8faAAoJEGnX8d3iisJeU5wP/A1OM9S6TOCe4Ikguhp8UDgS
 UaGXboVpAAJNr6B+NfzvUbxi3VybgqooRM6tEU33A4eDzmfCTKBxMbvvE77rOuPC
 CC/8wxQ87wDqU+6GGL5DoTTc4rrxnNoEK6MOh2/Rv76idEi8Z2eo4INfm6FkBjGY
 +2WkuSpegBIxKrvFmBK9JC7cYaR3KBGSxW3rjLaK6xn0yt+LT1LQKJ/4OFLke7zy
 HWNVVnXnyJhn6z7v+Bum3hjnA8bhnDEVKAM0XgD/8TtjkhS6aod4HS2mjvcKnGc/
 vyAk3B4fgq0EKFXX0IyHNnWI92gCnACWs8sHAQ/UBB4GHf0z1ScoihJeE4VAqRS4
 kJ6SKAIHEtwY1nQV5GgVE2ddMgTDEXwAKCna99ejoUMMmQZFaRy80YuuSMLIjEuz
 H16oPkSzJDsR6Z9ocoC5mATWnHxsFZsCAX72u88X+ylaJmBziF2VmjaKRIXB8Psn
 YVz02U1YlONJTesEI7lnLD3fwx6pzu/XJjNTe4saiJFAoxaGuPbjRg6sJq3URDj6
 3CJ89OFRbgx78jbk7QpYlc6m9SdTM2F5T7ICi6yxElok1dn+i+UQhnBXCinIvTcL
 5w9IKA/9qeqjyT76vy1cPY2KlSDGj0kqjI+63IzpGtTScRuyflA5S1CvqyNeUbQq
 Vrtw/IRz5pvS7iaCDwuc
 =u+Jp
 -----END PGP SIGNATURE-----

Merge tag 'arc-4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:
 "Hopefully last set of changes for ARC for 4.10:

   - fix for unaligned access emulation corner case

   - fix for udelay loop inline asm regression

   - fix irq affinity finally for AXS103 board [Yuriy]

   - final fixes for setting IO-coherency sanely in SMP"

* tag 'arc-4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: [arcompact] handle unaligned access delay slot corner case
  ARCv2: smp-boot: wake_flag polling by non-Masters needs to be uncached
  ARC: smp-boot: Decouple Non masters waiting API from jump to entry point
  ARCv2: MCIP: update the BCR per current changes
  ARC: udelay: fix inline assembler by adding LP_COUNT to clobber list
  ARCv2: MCIP: Deprecate setting of affinity in Device Tree
2017-01-28 11:00:08 -08:00
Fabrice Gasnier
122b5f4580 Documentation: dt: iio: stm32-adc: optional dma support
STM32 ADC can use dma. Add dt documentation for optional dma support.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 18:25:20 +00:00
Fabrice Gasnier
732f2dc468 iio: adc: stm32: add trigger polarity extended attribute
Define extended attribute so that user may choose rising, falling or both
edges for external trigger sources.
Default to rising edge in case it isn't set.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 18:24:57 +00:00
Fabrice Gasnier
f24a33b3e2 iio: adc: stm32: Enable use of stm32 timer triggers
STM32 ADC has external timer trigger sources. Use stm32 timer triggers
API (e.g. is_stm32_timer_trigger()) with local ADC lookup table to
validate a trigger can be used.
This also provides correct trigger selection value (e.g. extsel).

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 18:24:12 +00:00
Fabrice Gasnier
da9b948514 iio: adc: stm32: add support for triggered buffer mode
STM32 ADC conversions can be launched using hardware triggers.
It can be used to start conversion sequences (group of channels).
Selected channels are select via sequence registers.
Trigger source is selected via 'extsel' (external trigger mux).
Trigger polarity is set to rising edge by default.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 18:23:46 +00:00
Jonathan Cameron
6db0f7ccc9 Immutable branch between MFD, IIO and PWM due for the v4.11 merge window
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJYiNNFAAoJEFGvii+H/HdhqSEP/jNBWmiCKvci3hR0T6ujyqoR
 A7GM5soFkw25ZWi0hRPYUewA4KOn+laFnHJsHfx6h2fTeZHk3Phx/9f6uBhVENG5
 gSmAkSTsRaFGUyDU1Enq6hH9CIhdUuJh2ybIc2Fq8T1Z8hg3sGjcDfBC8T3uT/fM
 y1fdlhNzlSB1DnRO9niHQJMCGXRx7V6C4jH9epxXY2Tf5WjcFgQTpf7XrXyz7gxy
 8Zn1oLHt6nT6H70AHb3hbV48IVcVVpIN/qVHMDAXd8kvTTFh7OTi7zJIGqQKzOFr
 y83mv5fBF6V67WOLsRcd0diNgOUSFLxxp4D2j8EAjSB386V+9wfm42A04z9HNXE5
 XD2gmaVpm0H3OH3YjOHo+s/lbWAYvzb3NJ0pOHXis8dcKGW/3MH33cWHsUBe+ytv
 SOfd9u+OYbe0o2xKPUVIF6m/HXrLqWBM5+wT2F/5Z0nbIXlhXK96km4T16JD5L+A
 QWyilHmP/shDCuZ4ORl7sf0V/FY7BicOzPBpHZKOGjX+3RmCn1fo++WgdFIyVkCG
 tvIUtSONxeidaDUJ8J1tn2OR8DtdyMag7pagzypZF4JSpjfJ+IMj/6wFftgTzZgh
 yDtkfUYk9sJsBy3Bp1pfcVrcnERlIq7FND9HySQTbRFRX0+5ARx7ZXzjqidKHy6l
 yvFfnhxy1vcy8RdEh21e
 =tG0h
 -----END PGP SIGNATURE-----

Merge tag 'ib-mfd-iio-pwm-4.11' into test

Immutable branch between MFD, IIO and PWM due for the v4.11 merge window

Pulled into IIO to allow follow up series of triggered capture for the
STM32 ADCs.
2017-01-28 18:21:49 +00:00
Andreas Klinger
1dc2af8787 iio: distance: srf08: add driver ABI documentation
Add sysfs-bus-iio-distance-srf08 for individual attributes of the driver,
especially:
 - sensitivity which the device documentation calls gain for amplifying the
   signal
 - max_range for limiting the maximum distance for expected echos and
   therefore limiting the time waiting for telegrams

Signed-off-by: Andreas Klinger <ak@it-klinger.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 16:38:33 +00:00
Andreas Klinger
78f839029e iio: distance: srf08: add IIO driver for us ranger
This is the IIO driver for devantech srf08 ultrasonic ranger which can be
used to measure the distances to an object.

The sensor supports I2C with some registers.

Supported Features include:
 - read the distance in ranging mode in centimeters
 - output of the driver is directly the read value
 - together with the scale the driver delivers the distance in meters
 - only the first echo of the nearest object is delivered
 - set sensitivity as analog value in the range of 0-31  means setting
   gain register on device
 - set range registers; userspace enters max. range in millimeters in
   43 mm steps

Features not supported by this driver:
 - ranging mode in inches or in microseconds
 - ANN mode
 - change I2C address through this driver
 - light sensor

The driver was added in the directory "proximity" of the iio subsystem and
the menu in den config is now called "Proximity and distance sensors"

Signed-off-by: Andreas Klinger <ak@it-klinger.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 16:38:24 +00:00
Andreas Klinger
2bee073c0d iio: distance: srf08: add trivial DT binding
- Add DT binding for devantech,srf08
 - Add vendor devantech to vendor list

Signed-off-by: Andreas Klinger <ak@it-klinger.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 16:38:07 +00:00
Javier Martinez Canillas
bb46d1eb41 ARM: dts: exynos: Increase MFC left reserved memory region size
The sizes of the MFC reserved memory regions for CMA are 16 MiB for the
left bank and 8 MiB for the right bank. But this isn't enough to decode
high resolution videos so increase the size for the left bank to 36 MiB
which is enough for 1080p (1920x1080).

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-01-28 17:49:02 +02:00
David S. Miller
4e8f2fc1a5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Two trivial overlapping changes conflicts in MPLS and mlx5.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-28 10:33:06 -05:00
Gwendal Grignou
d732248fdb iio: cros_ec: Add cros_ec barometer driver
Handle the barometer sensor presented by the ChromeOS EC Sensor hub.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Enric Balletbo Serra <enric.balletbo@collabora.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 15:07:46 +00:00
Yazen Ghannam
1bd9900b83 EDAC, amd64: Add x86cpuid sanity check during init
Match one of the devices in amd64_cpuids[] before loading the module.
This is an additional sanity check against users trying to load
amd64_edac_mod on unsupported systems.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1485537863-2707-9-git-send-email-Yazen.Ghannam@amd.com
[ Get rid of err_ret label, make it a bit more readable this way. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2017-01-28 14:43:06 +01:00
Yazen Ghannam
4688c9b42d EDAC, amd64: Don't treat ECC disabled as failure
Having ECC disabled on a node doesn't necessarily mean that it's
disabled for the entire system. So let's return a non-failing code when
ECC is disabled on a node. This way we can skip initialization for the
node but still continue with the remaining nodes.

After probing all instances, make sure we have at least one MC device
allocated.

This issue is seen and fix tested on Fam15h and Fam17h MCM systems.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1485537863-2707-8-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2017-01-28 14:38:49 +01:00
Yazen Ghannam
d7fc9d77ac EDAC: Add routine to check if MC devices list is empty
We need to know if any MC devices have been allocated.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1485537863-2707-7-git-send-email-Yazen.Ghannam@amd.com
[ Prettify text. ]
Signed-off-by: Borislav Petkov <bp@suse.de>
2017-01-28 14:36:47 +01:00
Douglas Miller
966d2b04e0 percpu-refcount: fix reference leak during percpu-atomic transition
percpu_ref_tryget() and percpu_ref_tryget_live() should return
"true" IFF they acquire a reference. But the return value from
atomic_long_inc_not_zero() is a long and may have high bits set,
e.g. PERCPU_COUNT_BIAS, and the return value of the tryget routines
is bool so the reference may actually be acquired but the routines
return "false" which results in a reference leak since the caller
assumes it does not need to do a corresponding percpu_ref_put().

This was seen when performing CPU hotplug during I/O, as hangs in
blk_mq_freeze_queue_wait where percpu_ref_kill (blk_mq_freeze_queue_start)
raced with percpu_ref_tryget (blk_mq_timeout_work).
Sample stack trace:

__switch_to+0x2c0/0x450
__schedule+0x2f8/0x970
schedule+0x48/0xc0
blk_mq_freeze_queue_wait+0x94/0x120
blk_mq_queue_reinit_work+0xb8/0x180
blk_mq_queue_reinit_prepare+0x84/0xa0
cpuhp_invoke_callback+0x17c/0x600
cpuhp_up_callbacks+0x58/0x150
_cpu_up+0xf0/0x1c0
do_cpu_up+0x120/0x150
cpu_subsys_online+0x64/0xe0
device_online+0xb4/0x120
online_store+0xb4/0xc0
dev_attr_store+0x68/0xa0
sysfs_kf_write+0x80/0xb0
kernfs_fop_write+0x17c/0x250
__vfs_write+0x6c/0x1e0
vfs_write+0xd0/0x270
SyS_write+0x6c/0x110
system_call+0x38/0xe0

Examination of the queue showed a single reference (no PERCPU_COUNT_BIAS,
and __PERCPU_REF_DEAD, __PERCPU_REF_ATOMIC set) and no requests.
However, conditions at the time of the race are count of PERCPU_COUNT_BIAS + 0
and __PERCPU_REF_DEAD and __PERCPU_REF_ATOMIC set.

The fix is to make the tryget routines use an actual boolean internally instead
of the atomic long result truncated to a int.

Fixes: e625305b39 percpu-refcount: make percpu_ref based on longs instead of ints
Link: https://bugzilla.kernel.org/show_bug.cgi?id=190751
Signed-off-by: Douglas Miller <dougmill@linux.vnet.ibm.com>
Reviewed-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: e625305b39 ("percpu-refcount: make percpu_ref based on longs instead of ints")
Cc: stable@vger.kernel.org # v3.18+
2017-01-28 07:49:42 -05:00
William Breathitt Gray
b2d226caec iio: stx104: Utilize devm_ functions in driver probe callback
The devm_ resource manager functions allow memory to be automatically
released when a device is unbound. This patch takes advantage of the
resource manager functions and replaces the gpiochip_add_data call and
iio_device_register call with the devm_gpiochip_add_data call and
devm_iio_device_register call respectively. In addition, the
stx104_remove function has been removed as no longer necessary due to
the use of the relevant devm_ resource manager functions.

Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 12:44:05 +00:00
Lorenzo Bianconi
75de554610 Documentation: dt: iio: imu: st_lsm6dsx: add st,drdy-int-pin property
Add st,drdy-int-pin property to select interrupt pin of the package

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 12:42:51 +00:00
Lorenzo Bianconi
dba329048e iio: imu: st_lsm6dsx: add possibility to select drdy pin
Add capability to route data ready signal on pin 1 or pin 2 of the package

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 12:41:53 +00:00
Martin Blumenstingl
3adbf34273 iio: adc: add a driver for the SAR ADC found in Amlogic Meson SoCs
This adds support for the SAR (Successive Approximation Register) ADC
on the Amlogic Meson SoCs.

The code is based on the public S805 (Meson8b) and S905 (GXBB)
datasheets (see [0] and [1]), as well as by reading (various versions
of) the vendor driver and by inspecting the registers on the vendor
kernels of my testing-hardware.

Currently the GXBB, GXL and GXM SoCs are supported. GXBB hardware has
10-bit ADC resolution, while GXL and GXM have 12-bit ADC resolution.
The code was written to support older SoCs (Meson8 and Meson8b) as well,
but due to lack of actual testing-hardware no of_device_id was added for
these.

Two "features" from the vendor driver are currently missing:
- the vendor driver uses channel #7 for calibration (this improves the
  accuracy of the results - in my tests the results were less than 3%
  off without calibration compared to the vendor driver). Adding support
  for this should be easy, but is not required for most applications.
- channel #6 is connected to the SoCs internal temperature sensor.
  Adding support for this is probably not so easy since (based on the
  u-boot sources) most SoC versions are using different registers and
  algorithms for the conversion from "ADC value" to temperature.

Supported by the hardware but currently not supported by the driver:
- reading multiple channels at the same time (the hardware has a FIFO
  buffer which stores multiple results)
- continuous sampling (this would require a way to enable this
  individually because otherwise the ADC would be drawing power
  constantly)
- interrupt support (similar to the vendor driver this new driver is
  polling the results. It is unclear if the IRQ-mode is supported on
  older (Meson6 or Meson8) hardware as well or if there are any errata)

[0]
http://dn.odroid.com/S805/Datasheet/S805_Datasheet%20V0.8%2020150126.pdf
[1] http://dn.odroid.com/S905/DataSheet/S905_Public_Datasheet_V1.1.4.pdf

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 12:29:50 +00:00
Martin Blumenstingl
564c364c35 Documentation: dt-bindings: add the Amlogic Meson SAR ADC documentation
This adds the devicetree binding documentation for the SAR ADC found in
Amlogic Meson SoCs.
Currently only the GXBB, GXL and GXM SoCs are supported.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 12:29:25 +00:00
Julián de Gortari
7f47d56c5b Staging: iio: adc: ad7816: fix symbolic permissions coding style issue
Octal permissions should be used instead of symbolic ones for easier
reading.

Signed-off-by: Julián de Gortari <kiototeko@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 12:22:07 +00:00
Yazen Ghannam
df64636fa4 EDAC, amd64: Remove unused printing macros
amd64_{debug,notice} don't have any users, so remove them.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1485537863-2707-6-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2017-01-28 13:20:06 +01:00
Yazen Ghannam
11ab1cae58 EDAC, amd64: Rework messages in ecc_enabled()
Print the node number when informing that DRAM ECC is disabled so
that we can show which nodes have DRAM ECC disabled. Also, print more
detailed system information as edac_dbg(), so as to not bother general
users.

Switch amd64_notice to amd64_info to match the message above it.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1485537863-2707-5-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2017-01-28 13:18:33 +01:00
Anthony Brandon
349ee0402c drivers:staging:iio:cdc: Style fix.
Align parameters to parentheses.

Signed-off-by: Anthony Brandon <anthony@amarulasolutions.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 12:17:45 +00:00
Wei Yongjun
752d01d990 iio: common: ssp_sensors: gyro: use devm_iio_device_register()
Use devm_iio_device_register() for IIO subsystem device
registration and delete the remove function since there
is no need after this change.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 12:16:17 +00:00
Wei Yongjun
fa4c115ca5 iio: common: ssp_sensors: accel: use devm_iio_device_register()
Use devm_iio_device_register() for IIO subsystem device
registration and delete the remove function since there
is no need after this change.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 12:15:22 +00:00
Matt Weber
df1fd2de11 iio: max5481: Add support for Maxim digital potentiometers
Add implementation for Maxim Integrated 5481, 5482, 5483,
and 5484 digital potentiometer devices.

Datasheet:
http://datasheets.maximintegrated.com/en/ds/MAX5481-MAX5484.pdf

Signed-off-by: Maury Anderson <maury.anderson@rockwellcollins.com>
Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Slawomir Stepien <sst@poczta.fm>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 12:13:31 +00:00
Yazen Ghannam
234365f56e EDAC, amd64: Move global code out of instance functions
We have a few functions that register/unregister an ECC error decoding
routine. These functions are called when we init/remove instances.
However, they are global and so don't need to be registered/unregistered
multiple times.

So move them out of the init/remove instance functions and into the
module init/exit routines.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1485297149-13733-4-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2017-01-28 13:08:10 +01:00
Yazen Ghannam
2b9b2c4659 EDAC, amd64: Free unused memory when init_one_instance() fails
Jump to memory freeing routines when init_one_instance() fails.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1485297149-13733-3-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2017-01-28 13:03:40 +01:00
Yazen Ghannam
67d7fd306e EDAC, mce_amd: Give more context to deferred error message
Users may not be familiar with the concept of deferred errors. There is
no action for users to take on this type of error, so give more context
in the error message to make this more clear.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1485297149-13733-2-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2017-01-28 13:03:29 +01:00
Manivannan Sadhasivam
ba34b3a2df Documentation: dt-bindings: tmp007: Add optional interrupt support
This patch adds optional interrupt binding support for TI TMP007 - IR thermopiler sensor

Signed-off-by: Manivannan Sadhasivam <manivannanece23@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 11:51:58 +00:00
Marek Vasut
059c53b323 iio: adc: Add Renesas GyroADC driver
Add IIO driver for the Renesas RCar GyroADC block. This block is a
simple 4/8-channel ADC which samples 12/15/24 bits of data every
cycle from all channels.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Simon Horman <horms+renesas@verge.net.au>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: linux-renesas-soc@vger.kernel.org
Cc: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 11:33:53 +00:00
Marek Vasut
ec2ef15335 iio: adc: Add Renesas GyroADC bindings
Add DT bindings for the Renesas RCar GyroADC block. This block is
a simple 4/8-channel ADC which samples 12/15/24 bits of data every
cycle from all channels.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Simon Horman <horms+renesas@verge.net.au>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: linux-renesas-soc@vger.kernel.org
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Rob Herring <robh@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-28 11:32:37 +00:00
Sven Eckelmann
3e7514afc7 batman-adv: Fix includes for IS_ERR/ERR_PTR
IS_ERR/ERR_PTR are not defined in linux/device.h but in linux/err.h. The
files using these macros therefore have to include the correct one.

Reported-by: Linus Luessing <linus.luessing@web.de>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2017-01-28 10:40:35 +01:00
Sven Eckelmann
7c946062b3 batman-adv: Fix double call of dev_queue_xmit
The net_xmit_eval has side effects because it is not making sure that e
isn't evaluated twice.

    #define net_xmit_eval(e)        ((e) == NET_XMIT_CN ? 0 : (e))

The code requested by David Miller [1]

    return net_xmit_eval(dev_queue_xmit(skb));

will get transformed into

    return ((dev_queue_xmit(skb)) == NET_XMIT_CN ? 0 : (dev_queue_xmit(skb)))

dev_queue_xmit will therefore be tried again (with an already consumed skb)
whenever the return code is not NET_XMIT_CN.

[1] https://lkml.kernel.org/r/20170125.225624.965229145391320056.davem@davemloft.net

Fixes: c33705188c ("batman-adv: Treat NET_XMIT_CN as transmit successfully")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2017-01-28 10:40:35 +01:00
Jonathan Corbet
f58576666c x86/mm: Improve documentation for low-level device I/O functions
Add kerneldoc comments for memcpy_{to,from}io() and memset_io().  The
existing documentation for ioremap() was distant from the definition,
causing kernel-doc to miss it; move it appropriately.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20170127161752.0b95e95b@lwn.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-01-28 09:37:51 +01:00
Ingo Molnar
9a1f4150fe Merge branch 'linus' into x86/boot, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-01-28 09:30:11 +01:00
Jiri Kosina
bf29bddf04 x86/efi: Always map the first physical page into the EFI pagetables
Commit:

  129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode")

stopped creating 1:1 mappings for all RAM, when running in native 64-bit mode.

It turns out though that there are 64-bit EFI implementations in the wild
(this particular problem has been reported on a Lenovo Yoga 710-11IKB),
which still make use of the first physical page for their own private use,
even though they explicitly mark it EFI_CONVENTIONAL_MEMORY in the memory
map.

In case there is no mapping for this particular frame in the EFI pagetables,
as soon as firmware tries to make use of it, a triple fault occurs and the
system reboots (in case of the Yoga 710-11IKB this is very early during bootup).

Fix that by always mapping the first page of physical memory into the EFI
pagetables. We're free to hand this page to the BIOS, as trim_bios_range()
will reserve the first page and isolate it away from memory allocators anyway.

Note that just reverting 129766708 alone is not enough on v4.9-rc1+ to fix the
regression on affected hardware, as this commit:

   ab72a27da ("x86/efi: Consolidate region mapping logic")

later made the first physical frame not to be mapped anyway.

Reported-by: Hanka Pavlikova <hanka@ucw.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Borislav Petkov <bp@suse.de>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vojtech Pavlik <vojtech@ucw.cz>
Cc: Waiman Long <waiman.long@hpe.com>
Cc: linux-efi@vger.kernel.org
Cc: stable@kernel.org # v4.8+
Fixes: 129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode")
Link: http://lkml.kernel.org/r/20170127222552.22336-1-matt@codeblueprint.co.uk
[ Tidied up the changelog and the comment. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-01-28 09:18:56 +01:00
Kalle Valo
2b1d530cb3 MAINTAINERS: ath9k-devel is closed
ath9k-devel list is now closed, only linux-wireless should be used.

Reported-by: Michael Renzmann <mrenzmann@madwifi-project.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-01-28 09:15:50 +02:00
Michael Schenk
575ddce050 rtlwifi: rtl_usb: Fix for URB leaking when doing ifconfig up/down
In the function rtl_usb_start we pre-allocate a certain number of urbs
for RX path but they will not be freed when calling rtl_usb_stop. This
results in leaking urbs when doing ifconfig up and down. Eventually,
the system has no available urbs.

Signed-off-by: Michael Schenk <michael.schenk@albis-elcon.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-01-28 09:11:34 +02:00
Guy Mishol
64ad08605e wlcore: print the sdio buffer after reading it
fix an issue where we printed the sdio buffer before
actually read it.

Signed-off-by: Guy Mishol <guym@ti.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-01-28 09:11:08 +02:00
Amitkumar Karwar
cc37d8efd2 mwifiex: use pci_dma_sync_single* APIs
On some platforms, driver is unable read sleep cookie signature even
if firmware has written it through DMA. The problem is fixed by using
pci_dma_sync_single* APIs while reading DMA buffer shared with firmware.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-01-28 09:10:04 +02:00
Amitkumar Karwar
3e66849865 mwifiex: mwifiex_unmap_pci_memory() handling for sleep confirm
Sleep confirm is a special command for which "adapter->cur_cmd" pointer
is not set. When it's response is received, host writes SLEEP confirm done
to a register. Firmware will perform DMA for writing sleep cookie signature
on same buffer after this.

Let's not immediately call mwifiex_unmap_pci_memory() for this special
command. Unmapping will be done when firmware completes writing sleep
cookie signature.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-01-28 09:10:03 +02:00
Serge Vasilugin
98e71f44c5 rt2x00: add support for RT5350 WiSoC
Support for the RT5350 WiSoC was added to OpenWrt after having a
lengthy debate about the legality of the original submission, see
https://lists.openwrt.org/pipermail/openwrt-devel/2013-January/018224.html
MTK/Ralink Acked replied and says we can merge this patch under the GPL.
https://dev.openwrt.org/changeset/36177

Signed-off-by: Serge Vasilugin <vasilugin@yandex.ru>
Tested-by: Michel Stempin <michel.stempin@wanadoo.fr>
Acked-by: John Crispin <blogic@openwrt.org>
[daniel@makrotopia.org: added commit message, cleaned up code]
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-01-28 09:03:46 +02:00