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513150 commits

Author SHA1 Message Date
Dmitry Torokhov
8b8a518ef1 Input: atkbd - document "no new force-release quirks" policy
To save people some time let's document that we do not want new quirks for
"force-release" keys in the kernel and that they should patch userspace
(udev) instead.

Suggested-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-04-11 00:03:08 -07:00
Fengguang Wu
07f19e3db8 Input: ALPS - make alps_get_pkt_id_ss4_v2() and others static
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-04-11 00:02:46 -07:00
Ingo Molnar
5dafd7cb96 perf/core improvements and fixes:
New user visible features:
 
 - Support multiple probes on different binaries on the same command line (Masami Hiramatsu)
 
 User visible fixes:
 
 - Fix synthesizing fork_event.ppid for non-main thread (David Ahern)
 
 - Fix cross-endian analysis (David Ahern)
 
 - Fix segfault in 'perf buildid-list' when show DSOs with hits (He Kuang)
 
 Infrastructure:
 
 - Fix type for references to data_head/tail (David Ahern)
 
 - Fix error path to do closedir() when synthesizing threads (Arnaldo Carvalho de Melo)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

New user visible features:

  - Support multiple probes on different binaries on the same command line (Masami Hiramatsu)

User visible changes:

  - Fix synthesizing fork_event.ppid for non-main thread (David Ahern)

  - Fix cross-endian analysis (David Ahern)

  - Fix segfault in 'perf buildid-list' when show DSOs with hits (He Kuang)

Infrastructure changes:

  - Fix type for references to data_head/tail (David Ahern)

  - Fix error path to do closedir() when synthesizing threads (Arnaldo Carvalho de Melo)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-11 08:31:19 +02:00
Vlad Zolotarov
4ce37a4c05 ixgbe: Add a RETA query command to VF-PF channel API
Add this new command for 82599 and x540 devices only. Support for other
devices will be added later.

82599 and x540 VFs and PF share the same RSS redirection table (RETA).
Therefore we just return it for all VFs.

For 82599 and x540 RETA table is an array of 32 registers (128 bytes) and
the maximum number of registers that may be delivered in a single VF-PF
channel command is 15. On the other hand VFs of these devices can be
configured to have up to 4 RSS queues. Therefore we will "compress" the
RETA by transferring only 2 bits per entry and thereby it will take only 8
registers (DWORDS) to transfer the whole VF RETA.

Thus this patch does the following:

  - Adds a new API version (to specify a new commands set).
  - Adds the IXGBE_VF_GET_RETA command to the VF-PF commands set.

Signed-off-by: Vlad Zolotarov <vladz@cloudius-systems.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-04-10 22:44:19 -07:00
Vlad Zolotarov
e65ce0d395 ixgbe: Add a new netdev op to allow/prevent a VF from querying an RSS info
Implements the new netdev op to allow user to enable/disable the ability
of a specific VF to query its RSS Indirection Table and an RSS Hash Key.

This patch limits the new feature support to 82599 and x540 devices only.
Support for other devices will be added later.

Signed-off-by: Vlad Zolotarov <vladz@cloudius-systems.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-04-10 22:26:30 -07:00
Vlad Zolotarov
01a3d79681 if_link: Add an additional parameter to ifla_vf_info for RSS querying
Add configuration setting for drivers to allow/block an RSS Redirection
Table and a Hash Key querying for discrete VFs.

On some devices VF share the mentioned above information with PF and
querying it may adduce a theoretical security risk. We want to let a
system administrator to decide if he/she wants to take this risk or not.

Signed-off-by: Vlad Zolotarov <vladz@cloudius-systems.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-04-10 21:57:22 -07:00
Vlad Zolotarov
7f276efb45 ixgbe: Add the appropriate ethtool ops to query RSS indirection table and key
Added get_rxfh_indir_size, get_rxfh_key_size and get_rxfh ethtool_ops
callbacks implementations.

This enables the ethtool's "-x" and "--show-rxfh[-indir]" options.

Signed-off-by: Vlad Zolotarov <vladz@cloudius-systems.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-04-10 21:47:53 -07:00
Vlad Zolotarov
dfaf891dd3 ixgbe: Refactor the RSS configuration code
This patch is a preparation for enablement of ethtool RSS indirection
table and hash key querying. We don't want to read registers every time
the RSS info is queried. Therefore we will store its current content in the
arrays in the adapter struct and will read it from there (instead of from
registers) when requested.

Will change the code that writes the indirection table and hash key into
the HW registers to take its content from these arrays. This will also
simplify the indirection table updating ethtool callback implementation
in the future.

Signed-off-by: Vlad Zolotarov <vladz@cloudius-systems.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-04-10 21:38:37 -07:00
Corey Minyard
d0acf734d8 ipmi_ssif: Use interruptible completion for waiting in the thread
The code was using an normal completion, but that caused stuck
task errors after a while.  Use an interruptible one to avoid that.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
2015-04-10 20:51:42 -05:00
Alistair Popple
ad1ed2a9dd ipmi/powernv: Fix minor locking bug
If ipmi_powernv_recv(...) is called without a current message it
prints a warning and returns. However it fails to release the message
lock causing the system to dead lock during any subsequent IPMI
operations.

This error path should never normally be taken unless there are bugs
elsewhere in the system.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
2015-04-10 20:51:42 -05:00
Corey Minyard
1e7d6a45f6 ipmi: Handle BMCs that don't allow clearing the rcv irq bit
Some BMCs don't let you clear the receive irq bit in the global
enables.  This is kind of silly, but they give an error if you
try to clear it.  Compensate for this by detecting the situation
and working around it.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Tested-by: Thomas D <whissi@whissi.de>
Reviewed-by: Thomas D <whissi@whissi.de>
2015-04-10 20:51:42 -05:00
Linus Torvalds
3259b12ae1 SCSI fixes on 20150410
This is our remaining set of three fixes for 4.0: two oops fixes(one for cable
 pulls triggering oopses and the other be2iscsi specific) and one warn on in
 sysfs on multipath devices using enclosures.
 
 Signed-off-by: James Bottomley <JBottomley@Odin.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is our remaining set of three fixes for 4.0: two oops fixes(one
  for cable pulls triggering oopses and the other be2iscsi specific) and
  one warn on in sysfs on multipath devices using enclosures"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  Defer processing of REQ_PREEMPT requests for blocked devices
  be2iscsi: Fix kernel panic when device initialization fails
  enclosure: fix WARN_ON removing an adapter in multi-path devices
2015-04-10 17:41:47 -07:00
Rafael J. Wysocki
baa9a93a44 Merge branch 'cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux into pm-cpuidle
Pull intel_idle material for v4.1 from Len Brown.

* 'cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  intel_idle: Add support for the Airmont Core in the Cherrytrail and Braswell SOCs
  intel_idle: Update support for Silvermont Core in Baytrail SOC
2015-04-11 02:28:00 +02:00
Mathias Krause
d5cdc3c4c2 intel_idle: mark cpu id array as __initconst
The CPU ids are only tested in intel_idle_probe() which is itself an
__init function. For the MODULE_DEVICE_TABLE() file2alias doesn't care
about the section, just about the symbol name. So it's safe to mark
the cpu id array as  __initconst so its memory can be released after
initialization is done.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-04-11 02:25:01 +02:00
Mathias Krause
ea85dbcaec powercap / RAPL: mark rapl_ids array as __initconst
The RAPL ids are only tested in rapl_init() which is itself an __init
function. For the MODULE_DEVICE_TABLE() file2alias doesn't care about
the section, just about the symbol name. Therefore it's safe to mark the
rapl_ids[] array as __initconst so its memory can be released after
initialization is done.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Acked-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-04-11 02:21:15 +02:00
Jacob Pan
34dfa36c04 powercap / RAPL: add ID for Broadwell server
Validated RAPL functions on this platform. Add support to driver.

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-04-11 02:17:19 +02:00
Dasaratharaman Chandramouli
b34ef932d7 intel_pstate: Knights Landing support
1. Add Knights Landing (KNL) CPUID to the list of CPUIDs supported by
    the intel_pstate driver.

 2. Add a new cpu_default structure for KNL since KNL has a slightly
    different mechanism to get turbo pstates from MSRs.

Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com>
[ rjw: Subject and changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-04-11 02:13:29 +02:00
Kristen Carlson Accardi
5f97899d78 intel_pstate: remove MSR test
x86_match_cpu will not match our cpuid unless APERF/MPERF flag is
set, so there is no need to do the manual check for this MSR.

Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-04-11 02:13:28 +02:00
Arnd Bergmann
4492d1a2e9 cpufreq: fix qoriq uniprocessor build
The qoriq-cpufreq driver contains a hack for powerpc to include
asm/smp.h on uniprocessor builds so it can get the hardware CPU
number. On ARM, it does not require this hack, but instead gets
a compile error:

In file included from drivers/cpufreq/qoriq-cpufreq.c:24:0:
arch/arm/include/asm/smp.h:18:3: error: #error "<asm/smp.h> included in non-SMP build"
arch/arm/include/asm/smp.h:21:0: warning: "raw_smp_processor_id" redefined

This adds an #ifdef to mirror the one in its get_cpu_physical_id()
function.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 2f249358ee ("cpufreq: qoriq: rename the driver")
Cc: Tang Yuantian <Yuantian.Tang@freescale.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-04-11 02:07:28 +02:00
Linus Torvalds
49850a147c Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
 "Just a few small fixes:

  Two from Andy, the first addresses a v4.0 target specific regression
  to a user visible configfs attribute, and the second adds a set of
  missing brackets around IPv6 discovery portal information within
  iscsi-target.

  And one from Mike that fixes an OOPs regression in traditional
  iscsi-target when an iovec allocation fails, that has been present
  since v3.10.y code.  (CC'd to stable)"

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  iscsi target: fix oops when adding reject pdu
  iscsi-target: TargetAddress in SendTargets should bracket ipv6 addresses
  target: Allow userspace to write 1 to attrib/emulate_fua_write
2015-04-10 16:56:40 -07:00
Jason Cooper
a01e7b3258 Merge branch 'irqchip/stacked-irq_set_wake' into irqchip/core
Conflicts:
	drivers/irqchip/irq-gic.c
2015-04-10 22:58:19 +00:00
Jason Cooper
fb414e908b Merge branch 'irqchip/stacked-exynos' into irqchip/core 2015-04-10 22:57:58 +00:00
Jason Cooper
07c523f149 Merge branch 'irqchip/stacked-omap' into irqchip/core 2015-04-10 22:57:56 +00:00
Jason Cooper
37b25fffd1 Merge branch 'irqchip/stacked-tegra' into irqchip/core 2015-04-10 22:57:53 +00:00
Srinivas Pandruvada
b2eafd7282 HID: sensor: Update document for custom sensor
Added custom sensor documentation

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-04-10 22:22:56 +02:00
Srinivas Pandruvada
4a7de0519d HID: sensor: Custom and Generic sensor support
HID Sensor Spec defines two usage ids for custom sensors

	HID_USAGE_SENSOR_TYPE_OTHER_CUSTOM (0x09, 0xE1)
	HID_USAGE_SENSOR_TYPE_OTHER_GENERIC(0x09, 0xE2)

	In addition the standard also defines usage ids for custom fields.
The purpose of these sensors is to extend the functionality or provide a way to
obfuscate the data being communicated by a sensor. Without knowing the mapping
between the data and its encapsulated form, it is difficult for an driver to
determine what data is being communicated by the sensor.  This allows some
differentiating use cases, where vendor can provide applications.  Since these
can't be represented by standard sensor interfaces like IIO, we present these
as fields with

- type (input/output)
- units
- min/max
- get/set value

In addition an dev interface to transfer report events. Details about this
interface is described in /Documentation/hid/hid-sensor.txt.  Manufacturers
should not use these ids for any standard sensors, otherwise the the
product/vendor id can be added to black list.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-04-10 22:22:55 +02:00
David S. Miller
5288ec157c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-04-10

This series contains updates to ixgbe and documentation for igb,
ixgbe and ixgb.

Stephen cleans up documentation to igb, ixgbe and ixgb.

Don updates how bridge mode is stored to minimize obfuscation and
makes updates for future silicon easier.  Adds a new bridge mode
support function which gathers all the logic needed to configure
bridge modes.  Adds Source Address Prunning for VEPA bridge mode
for x550 devices.

Vasu adds specific FCoE offloads for x550 for DDP context programming
and increased DDP exchanges.

Alex Duyck cleans up the use of HW_VLAN_CTAG_FILTER in hw_features,
where the driver was actually ignoring the value of the bit and was
just assuming it was always set.  Also cleans up the use of rcu_barrier()
since the driver has not used call_rcu() to free the rings for some
time now.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-10 12:49:34 -07:00
Thomas Graf
78ebb0d00b rtnetlink: Mark name argument of rtnl_create_link() const
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-10 12:42:40 -07:00
Mike Christie
b815fc12d4 iscsi target: fix oops when adding reject pdu
This fixes a oops due to a double list add when adding a reject PDU for
iscsit_allocate_iovecs allocation failures. The cmd has already been
added to the conn_cmd_list in iscsit_setup_scsi_cmd, so this has us call
iscsit_reject_cmd.

Note that for ERL0 the reject PDU is not actually sent, so this patch
is not completely tested. Just verified we do not oops. The problem is the
add reject functions return -1 which is returned all the way up to
iscsi_target_rx_thread which for ERL0 will drop the connection.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Cc: <stable@vger.kernel.org> # v3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-04-10 12:33:55 -07:00
Martin Sperl
704f32d48a spi: bcm2835: enabling polling mode for transfers shorter than 30us
In cases of short transfer times the CPU is spending lots of time
in the interrupt handler and scheduler to reschedule the worker thread.

Measurements show that we have times where it takes 29.32us to between
the last clock change and the time that the worker-thread is running again
returning from wait_for_completion_timeout().

During this time the interrupt-handler is running calling complete()
and then also the scheduler is rescheduling the worker thread.

This time can vary depending on how much of the code is still in
CPU-caches, when there is a burst of spi transfers the subsequent delays
are in the order of 25us, so the value of 30us seems reasonable.

With polling the whole transfer of 4 bytes at 10MHz finishes after 6.16us
(CS down to up) with the real transfer (clock running) taking 3.56us.
So the efficiency has much improved and is also freeing CPU cycles,
reducing interrupts and context switches.

Because of the above 30us seems to be a reasonable limit for polling.

Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-04-10 19:50:52 +01:00
Martin Sperl
a30a555d74 spi: bcm2835: transform native-cs to gpio-cs on first spi_setup
Transforms the bcm-2835 native SPI-chip select to their gpio-cs equivalent.

This allows for some support of some optimizations that are not
possible due to HW-gliches on the CS line - especially filling
the FIFO before enabling SPI interrupts (by writing to CS register)
while the transfer is already in progress (See commit: e3a2be3030)

This patch also works arround some issues in bcm2835-pinctrl which does not
set the value when setting the GPIO as output - it just sets up output and
(typically) leaves the GPIO as low.  When a fix for this is merged then this
gpio_set_value can get removed from bcm2835_spi_setup.

Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-04-10 19:50:52 +01:00
Linus Torvalds
cfc4957b46 sound fixes for 4.0
Here are fixes gathered for 4.0-final; one FireFire endian fix, two
 USB-audio quirks, and three HD-audio quirks.
 
 All relatively small and device-specific fixes, should be pretty safe
 to apply.
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Merge tag 'sound-4.0' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Here are fixes gathered for 4.0-final; one FireFire endian fix, two
  USB-audio quirks, and three HD-audio quirks.

  All relatively small and device-specific fixes, should be pretty safe
  to apply"

* tag 'sound-4.0' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: usb - Creative USB X-Fi Pro SB1095 volume knob support
  ALSA: hda - Fix headphone pin config for Lifebook T731
  ALSA: bebob: fix to processing in big-endian machine for sending cue
  ALSA: hda/realtek - Make more stable to get pin sense for ALC283
  ALSA: usb-audio: don't try to get Benchmark DAC1 sample rate
  ALSA: hda/realtek - Support Dell headset mode for ALC256
2015-04-10 11:16:54 -07:00
Mark Brown
4ec0853ac5 Merge remote-tracking branch 'regulator/topic/wm8350' into regulator-next 2015-04-10 19:16:06 +01:00
Mark Brown
bea3672833 Merge remote-tracking branches 'regulator/topic/mode', 'regulator/topic/notifier', 'regulator/topic/palmas', 'regulator/topic/qcom' and 'regulator/topic/stw481x' into regulator-next 2015-04-10 19:16:03 +01:00
Mark Brown
3984c9da45 Merge remote-tracking branches 'regulator/topic/dbx500', 'regulator/topic/load-op', 'regulator/topic/max77693' and 'regulator/topic/max8660' into regulator-next 2015-04-10 19:16:02 +01:00
Mark Brown
e5073849f9 Merge remote-tracking branches 'regulator/topic/act8865', 'regulator/topic/arizona-ldo1', 'regulator/topic/arizona-micsupp' and 'regulator/topic/da9211' into regulator-next 2015-04-10 19:16:00 +01:00
Mark Brown
5fc31b43d5 Merge remote-tracking branch 'regulator/topic/core' into regulator-next 2015-04-10 19:15:59 +01:00
Mark Brown
498e530e50 Merge branch 'topic/debugfs' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-core 2015-04-10 19:05:21 +01:00
Linus Torvalds
6fb805fb10 nios2 fixes for v4.0-final
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Merge tag 'nios2-fixes-v4.0-final' of git://git.rocketboards.org/linux-socfpga-next

Pull arch/nios2 fixes from Ley Foon Tan:
 "There are 3 arch/nios2 fixes for 4.0 final:

   - fix cache coherency issue when debugging with gdb

   - move restart_block to struct task_struct (aligned with other
     architectures)

   - fix for missing registers defines for ptrace"

* tag 'nios2-fixes-v4.0-final' of git://git.rocketboards.org/linux-socfpga-next:
  nios2: fix cache coherency issue when debug with gdb
  nios2: add missing ptrace registers defines
  nios2: signal: Move restart_block to struct task_struct
2015-04-10 10:51:34 -07:00
Markus Pargmann
c0cf5a59fb regulator: max8660: Handle empty regulator data
It is not necessary to have regulator init data for a regulator. This
patch removes the necessity of this data and handles a NULL pointer
properly.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-04-10 18:17:53 +01:00
Subhendu Sekhar Behera
2bbd681ba2 i2c: xlp9xx: Driver for Netlogic XLP9XX/5XX I2C controller
Add an I2C bus driver i2c-xlp9xx.c to support the I2C block in the
XLP9xx/XLP5xx MIPS SoC. Update Kconfig and Makefile to add the
CONFIG_I2C_XLP9XX option.

Signed-off-by: Subhendu Sekhar Behera <sbehera@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-04-10 18:59:49 +02:00
Subhendu Sekhar Behera
85e4564ab2 of: Add vendor prefix 'netlogic'
Add vendor name "netlogic" in vendor-prefixes.txt, which will be used for
the Netlogic XLP and XLPII MIPS SoCs. These processors were from NetLogic
Microsystems that is now a part of Broadcom Corporation.

Signed-off-by: Subhendu Sekhar Behera <sbehera@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-04-10 18:57:24 +02:00
Grygorii Strashko
7ef97e9a31 i2c: davinci: use ICPFUNC to toggle I2C as gpio for bus recovery
Having a board where the I2C bus locks up occasionally made it clear
that the bus recovery in the i2c-davinci driver will only work on
some boards, because on regular boards, this will only toggle GPIO
lines that aren't muxed to the actual pins.

The I2C controller on SoCs like da850 (and da830), Keystone 2 has the
built-in capability to bit-bang its lines by using the ICPFUNC registers
of the i2c controller.
Implement the suggested procedure by toggling SCL and checking SDA using
the ICPFUNC registers of the I2C controller when present. Allow platforms
to indicate the presence of the ICPFUNC registers with a has_pfunc platform
data flag and add optional DT property "ti,has-pfunc" to indicate
the same in DT.

Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Tested-by: Michael Lawnick <michael.lawnick@nokia.com>
Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca>
Signed-off-by: Mike Looijmans <milo-software@users.sourceforge.net>
[grygorii.strashko@ti.com: combined patches from Ben Gardiner and
Mike Looijmans and reimplemented ICPFUNC bus recovery using I2C
bus recovery infrastructure]
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-04-10 17:57:28 +02:00
Grygorii Strashko
2e65676f71 i2c: davinci: use bus recovery infrastructure
This patch converts Davinci I2C driver to use I2C bus recovery
infrastructure, introduced by commit 5f9296ba21 ("i2c: Add
bus recovery infrastructure").

The i2c_bus_recovery_info is configured for Davinci I2C adapter
only in case scl_pin is provided in platform data.

As the controller must be held in reset while doing so, the
recovery routine must re-init the controller. Since this was already
being done after each call to i2c_recover_bus, move those calls into
the recovery_prepare/unprepare routines and as well.

Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-04-10 17:56:27 +02:00
Grygorii Strashko
2b2190a375 i2c: change input parameter to i2c_adapter for prepare/unprepare_recovery
This patch changes type of input parameter for
prepare/unprepare_recovery() callbacks from struct i2c_bus_recovery_info
* to struct i2c_adapter *. This allows to simplify implementation of
these callbacks and avoid type conversations from i2c_bus_recovery_info
to i2c_adapter. The i2c_bus_recovery_info can be simply retrieved from
struct i2c_adapter which contains pointer on it. There are no users
currently, so this is safe to do.

Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-04-10 17:54:31 +02:00
Jiri Kosina
8fec02a73e HID: debug: fix error handling in hid_debug_events_read()
In the unlikely case of hdev vanishing while hid_debug_events_read() was
sleeping, we can't really break out of the case switch as with other cases,
as on the way out we'll try to remove ourselves from the hdev waitqueue.

Fix this by taking a shortcut exit path and avoiding cleanup that doesn't
make sense in case hdev doesn't exist any more anyway.

Reported-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-04-10 17:32:21 +02:00
Heiko Stübner
23296099e7 regulator: output current-limit for all regulators in summary
Voltage regulators can have (unregulated) current limits too, so we should
probably output both voltage and current for all regulators.

Holding the rdev->mutex actually conflicts with _regulator_get_current_limit
but also is not really necessary, as the global regulator_list_mutex already
protects us from the regulator vanishing while we go through the list.

On the rk3288-firefly the summary now looks like:

 regulator                      use open bypass voltage current     min     max
-------------------------------------------------------------------------------
 vcc_sys                          0   12      0  5000mV     0mA  5000mV  5000mV
    vcc_lan                       1    1      0  3300mV     0mA  3300mV  3300mV
       ff290000.ethernet                                            0mV     0mV
    vcca_33                       0    0      0  3300mV     0mA  3300mV  3300mV
    vcca_18                       0    0      0  1800mV     0mA  1800mV  1800mV
    vdd10_lcd                     0    0      0  1000mV     0mA  1000mV  1000mV
 [...]

Suggested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-04-10 15:46:32 +01:00
Heiko Stübner
7c225ec90c regulator: add a summary tree in debugfs
On modern systems the regulator hierarchy can get quite long and nested
with regulators supplying other regulators. In some cases when debugging
it might be nice to get a tree of these regulators, their consumers
and the regulation constraints in one go.

To achieve this add a regulator_summary sysfs node, similar to
clk_summary in the common clock framework, that walks the regulator
list and creates a tree out of the regulators, their consumers and
core per-regulator settings.

On a rk3288-firefly the regulator_summary would for example look
something like:

 regulator                      use open bypass   value     min     max
-----------------------------------------------------------------------
 vcc_sys                          0   12      0  5000mV  5000mV  5000mV
    vcc_lan                       1    1      0  3300mV  3300mV  3300mV
       ff290000.ethernet                                    0mV     0mV
    vcca_33                       0    0      0  3300mV  3300mV  3300mV
    vcca_18                       0    0      0  1800mV  1800mV  1800mV
    vdd10_lcd                     0    0      0  1000mV  1000mV  1000mV
    vccio_sd                      0    0      0  3300mV  3300mV  3300mV
    vcc_20                        0    3      0  2000mV  2000mV  2000mV
       vcc18_lcd                  0    0      0  1800mV  1800mV  1800mV
       vcc_18                     0    2      0  1800mV  1800mV  1800mV
          ff100000.saradc                                   0mV     0mV
          ff0d0000.dwmmc                                 1650mV  1950mV
       vdd_10                     0    0      0  1000mV  1000mV  1000mV
    vdd_log                       0    0      0  1100mV  1100mV  1100mV
    vcc_io                        0    3      0  3300mV  3300mV  3300mV
       ff0f0000.dwmmc                                    3300mV  3400mV
       vcc_flash                  1    1      0  1800mV  1800mV  1800mV
          ff0f0000.dwmmc                                 1700mV  1950mV
       vcc_sd                     1    1      0  3300mV  3300mV  3300mV
          ff0c0000.dwmmc                                 3300mV  3400mV
    vcc_ddr                       0    0      0  1200mV  1200mV  1200mV
    vdd_gpu                       0    0      0  1000mV   850mV  1350mV
    vdd_cpu                       0    1      0   900mV   850mV  1350mV
       cpu0                                               900mV   900mV
    vcc_5v                        0    2      0  5000mV  5000mV  5000mV
       vcc_otg_5v                 0    0      0  5000mV  5000mV  5000mV
       vcc_host_5v                0    0      0  5000mV  5000mV  5000mV
 regulator-dummy                  0    0      0     0mV     0mV     0mV

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-04-10 15:46:28 +01:00
David Ahern
7b8283b56d perf evlist: Fix type for references to data_head/tail
The data_head and data_tail fields are defined as __u64 in
linux/perf_event.h, but perf userspace uses int and unsigned int.

Convert all references to u64 for consistency.

Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1428420037-26599-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-04-10 11:29:20 -03:00
Rafael J. Wysocki
2b9c698efa ACPI / scan: Take the PRP0001 position in the list of IDs into account
If the special PRP0001 device ID is present in a device's _CID list,
it should not prevent any ACPI/PNP IDs preceding it in the device's
list of identifiers from being matched first.  That is, only if none
of the IDs preceding PRP0001 in the device's PNP/ACPI IDs list
matches the IDs recognized by the driver, the driver's list of
"compatible" IDs should be matched against the device's "compatible"
property, if present.

In addition to that, drivers can provide both acpi_match_table and
of_match_table at the same time and the of_compatible matching
should be used in that case too if PRP0001 is present in the
device's list of identifiers.

To make that happen, rework acpi_driver_match_device() to do the
"compatible" property check in addition to matching the driver's
list of ACPI IDs against the device's one.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2015-04-10 16:07:51 +02:00