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Автор SHA1 Сообщение Дата
Len Brown 23a299cd93 Merge branches 'turbostat' and 'intel_idle' into release 2014-04-04 13:05:22 -04:00
Kerry Sheh 603eb2cdee tile: Fix vDSO compilation issue with allyesconfig
make allyesconfig give the following build error on tile:
 tilegx-linux-gcc: error: arch/tile/kernel/vdso/vgettimeofday32.o: No such file or directory
 tilegx-linux-objcopy: 'arch/tile/kernel/vdso/vdso32.so.dbg': No such file or directory

In case with CONFIG_MODVERSIONS, cmd_cc_o_c generate .tmp_<file>.o from
<file>.c only. Fix it by execute rule_cc_o_c instead.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Kerry Sheh <ksheh@tilera.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2014-04-04 13:03:44 -04:00
Len Brown 0138d8f075 intel_idle: fine-tune IVT residency targets
Ivy Town processors have slightly different properties
than Ivy Bridge processors, particuarly as socket count grows.
Here we add dedicated tables covering 1-2 socket,
3-4 socket, and > 4 socket IVT configurations.

This reduces the frequency of deep transitions on those systems,
which can impact throughput.

Signed-off-by: Len Brown <len.brown@intel.com>
2014-04-04 12:55:29 -04:00
Linus Torvalds 3c83e61e67 Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
 "The main set of series of patches for media subsystem, including:
   - document RC sysfs class
   - added an API to setup scancode to allow waking up systems using the
     Remote Controller
   - add API for SDR devices.  Drivers are still on staging
   - some API improvements for getting EDID data from media
     inputs/outputs
   - new DVB frontend driver for drx-j (ATSC)
   - one driver (it913x/it9137) got removed, in favor of an improvement
     on another driver (af9035)
   - added a skeleton V4L2 PCI driver at documentation
   - added a dual flash driver (lm3646)
   - added a new IR driver (img-ir)
   - added an IR scancode decoder for the Sharp protocol
   - some improvements at the usbtv driver, to allow its core to be
     reused.
   - added a new SDR driver (rtl2832u_sdr)
   - added a new tuner driver (msi001)
   - several improvements at em28xx driver to fix PM support, device
     removal and to split the V4L2 specific bits into a separate
     sub-driver
   - one driver got converted to videobuf2 (s2255drv)
   - the e4000 tuner driver now follows an improved binding model
   - some fixes at V4L2 compat32 code
   - several fixes and enhancements at videobuf2 code
   - some cleanups at V4L2 API documentation
   - usual driver enhancements, new board additions and misc fixups"

[ NOTE! This merge effective drops commit 4329b93b28 ("of: Reduce
  indentation in of_graph_get_next_endpoint").

  The of_graph_get_next_endpoint() function was moved and renamed by
  commit fd9fdb78a9 ("[media] of: move graph helpers from
  drivers/media/v4l2-core to drivers/of").  It was originally called
  v4l2_of_get_next_endpoint() and lived in the file
  drivers/media/v4l2-core/v4l2-of.c.

  In that original location, it was then fixed to support empty port
  nodes by commit b9db140c1e ("[media] v4l: of: Support empty port
  nodes"), and that commit clashes badly with the dropped "Reduce
  intendation" commit.  I had to choose one or the other, and decided
  that the "Support empty port nodes" commit was more important ]

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (426 commits)
  [media] em28xx-dvb: fix PCTV 461e tuner I2C binding
  Revert "[media] em28xx-dvb: fix PCTV 461e tuner I2C binding"
  [media] em28xx: fix PCTV 290e LNA oops
  [media] em28xx-dvb: fix PCTV 461e tuner I2C binding
  [media] m88ds3103: fix bug on .set_tone()
  [media] saa7134: fix WARN_ON during resume
  [media] v4l2-dv-timings: add module name, description, license
  [media] videodev2.h: add parenthesis around macro arguments
  [media] saa6752hs: depends on CRC32
  [media] si4713: fix Kconfig dependencies
  [media] Sensoray 2255 uses videobuf2
  [media] adv7180: free an interrupt on failure paths in init_device()
  [media] e4000: make VIDEO_V4L2 dependency optional
  [media] af9033: Don't export functions for the hardware filter
  [media] af9035: use af9033 PID filters
  [media] af9033: implement PID filter
  [media] rtl2832_sdr: do not use dynamic stack allocation
  [media] e4000: fix 32-bit build error
  [media] em28xx-audio: make sure audio is unmuted on open()
  [media] DocBook media: v4l2_format_sdr was renamed to v4l2_sdr_format
  ...
2014-04-04 09:50:07 -07:00
Rudolf Marek 574e9bd8fa hwmon: (it87) Add support for IT8623E
Add support for the IT8623E found on Asus motherboards. It has same
hardware monitoring block as IT8603E.

Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04 18:01:35 +02:00
Rudolf Marek 7183ae8c20 hwmon: (it87) Fix IT8603E define name
Fix small typo in the define name for IT8603E.

Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04 18:01:35 +02:00
Guenter Roeck 1de8b250f6 hwmon: (lm90) Convert to use hwmon_device_register_with_groups
Simplify code, reduce code size, and attach hwmon attributes to hwmon device.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04 18:01:35 +02:00
Guenter Roeck 084489e64c hwmon: (lm90) Create all sysfs groups in one call
Create all sysfs groups in one call by using sysfs_create_groups
instead of calling sysfs_create_group individually for each group.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04 18:01:35 +02:00
Guenter Roeck d89fa6867d hwmon: (lm90) Always use the dev variable in the probe function
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04 18:01:35 +02:00
Guenter Roeck 742192f546 hwmon: (lm90) Create most optional attributes with sysfs_create_group
With the new hwmon API, all attributes have to be created as groups.
Use sysfs_create_group and sysfs_remove_group instead of device_create_file
and device_remove_file to prepare for the new API.

Exception is the 'pec' attribute which will stay with the i2c device.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04 18:01:34 +02:00
Jean Delvare 6cf0a91ebe hwmon: Avoid initializing the same field twice
All hwmon drivers allocate their data structure with some form of
kzalloc, so setting data fields to zero explicitly is a waste of time.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2014-04-04 18:01:34 +02:00
Jean Delvare 5b58157598 hwmon: (pc87360) Avoid initializing the same field twice
data is kzalloc'd, so data->valid, data->innr and data->tempnr are
already 0. Also rework the initialization path to only set name and
data->fannr once.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2014-04-04 18:01:34 +02:00
Guenter Roeck 118c9a61f1 hwmon: (lm80) Convert to use devm_hwmon_device_register_with_groups
Simplify code, reduce code size, and attach hwmon attributes to
hwmon device.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04 18:01:34 +02:00
Guenter Roeck c669ec8039 hwmon: (adm1021) Convert to use devm_hwmon_device_register_with_groups
Simplify code, reduce code size, and attach hwmon attributes to
hwmon device.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04 18:01:34 +02:00
Jean Delvare 5ec25c93e0 hwmon: (lm63) Avoid initializing the same field twice
data is kzalloc'd, so data->valid is already 0.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2014-04-04 18:01:33 +02:00
Guenter Roeck e19eea8407 hwmon: (lm63) Convert to use devm_hwmon_device_register_with_groups
Simplify code, reduce code size, attach hwmon attributes to hwmon device.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04 18:01:33 +02:00
Guenter Roeck b76552b310 hwmon: (lm63) Create all sysfs groups in one call
We can create all sysfs groups in one call by using sysfs_create_groups
instead of using sysfs_create_group individually for each group.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04 18:01:33 +02:00
Guenter Roeck 2fd638feb6 hwmon: (lm63) Introduce 'dev' variable to point to client->dev
client->dev is used multiple times in several functions.
Introduce dev variable pointing to it to simplify the code.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04 18:01:33 +02:00
Guenter Roeck 0dcb28a152 hwmon: (lm63) Add additional sysfs group for temp2_type attribute
With the new hwmon API, we can only add groups of attributes, not individual
attributes. To prepare for the use of the new API, add an additional sensor
group for the temp2_type attribute and register it with sysfs_create_group
instead of device_create_file.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04 18:01:32 +02:00
Jean Delvare 964f945b5e hwmon: (f71805f) Fix author's address
The original address was incomplete, and this caused it to be missed
by the recent update to my new address.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
2014-04-04 18:01:32 +02:00
jhbird.choi@samsung.com 2d0acb4af9 ACPI: Clean up memory allocations
Use acpi_os_allocate_zeroed instead of acpi_os_allocate + memset.

Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
[rjw: Subject and changelog]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-04 16:23:33 +02:00
Tomi Valkeinen 0f5d9d2e7d OMAPDSS: HDMI: fix interlace output
The HDMI output video format's yres needs to be divided by two for
interlace. Fix it.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-04 09:56:19 +03:00
Tomi Valkeinen 5f0bc7a9ee OMAPDSS: add missing __init for dss_init_ports
dss_init_ports() is missing __init, so fix that.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-04 09:55:18 +03:00
Tomi Valkeinen b4f889208f ARM: OMAP2+: remove pdata quirks for displays
Remove pdata quirks for the displays on boards that are now supported
properly with DT.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2014-04-04 09:55:18 +03:00
Tomi Valkeinen 931d4bd664 OMAPDSS: remove DT hacks for regulators
For booting Panda and 4430SDP with DT, while DSS did not support DT, we
had to had small hacks in the omapdss driver to get the regulators. With
DT now supported in DSS, we can remove those hacks.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-04 09:55:17 +03:00
Linus Torvalds 4a4389abdd Merge branch 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac
Pull sb_edac patches from Mauro Carvalho Chehab:
 "A couple sb_edac driver improvements, cleaning a little bit the amount
  of data sent to dmesg, and fixing one error message"

* 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac:
  sb_edac: mark MCE messages as KERN_DEBUG
  sb_edac: use "event" instead of "exception" when MC wasnt signaled
2014-04-03 17:07:17 -07:00
Linus Torvalds 73f10274a6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "The first round of updates for the input subsystem.

  Just new drivers and existing driver fixes, no core changes except for
  the new uinput IOCTL to allow userspace to fetch sysfs name of the
  input device that was created"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (43 commits)
  Input: edt-ft5x06 - add a missing condition
  Input: appletouch - fix jumps when additional fingers are detected
  Input: appletouch - implement sensor data smoothing
  Input: add driver for SOC button array
  Input: pm8xxx-vibrator - add DT match table
  Input: pmic8xxx-pwrkey - migrate to DT
  Input: pmic8xxx-keypad - migrate to DT
  Input: pmic8xxx-keypad - migrate to regmap APIs
  Input: pmic8xxx-keypad - migrate to devm_* APIs
  Input: pmic8xxx-keypad - fix build by removing gpio configuration
  Input: add new driver for ARM CLPS711X keypad
  Input: edt-ft5x06 - add support for M09 firmware version
  Input: edt-ft5x06 - ignore touchdown events
  Input: edt-ft5x06 - adjust delays to conform datasheet
  Input: edt-ft5x06 - add DT support
  Input: edt-ft5x06 - several cleanups; no functional change
  Input: appletouch - dial back fuzz setting
  Input: remove obsolete tnetv107x drivers
  Input: sirfsoc-onkey - set the capability of reporting KEY_POWER
  Input: da9052_onkey - use correct register bit for key status
  ...
2014-04-03 17:02:31 -07:00
Linus Torvalds 877f075aac Main batch of InfiniBand/RDMA changes for 3.15:
- The biggest change is core API extensions and mlx5 low-level driver
    support for handling DIF/DIX-style protection information, and the
    addition of PI support to the iSER initiator.  Target support will be
    arriving shortly through the SCSI target tree.
 
  - A nice simplification to the "umem" memory pinning library now that
    we have chained sg lists.  Kudos to Yishai Hadas for realizing our
    code didn't have to be so crazy.
 
  - Another nice simplification to the sg wrappers used by qib, ipath and
    ehca to handle their mapping of memory to adapter.
 
  - The usual batch of fixes to bugs found by static checkers etc. from
    intrepid people like Dan Carpenter and Yann Droneaud.
 
  - A large batch of cxgb4, ocrdma, qib driver updates.
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Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull infiniband updates from Roland Dreier:
 "Main batch of InfiniBand/RDMA changes for 3.15:

   - The biggest change is core API extensions and mlx5 low-level driver
     support for handling DIF/DIX-style protection information, and the
     addition of PI support to the iSER initiator.  Target support will
     be arriving shortly through the SCSI target tree.

   - A nice simplification to the "umem" memory pinning library now that
     we have chained sg lists.  Kudos to Yishai Hadas for realizing our
     code didn't have to be so crazy.

   - Another nice simplification to the sg wrappers used by qib, ipath
     and ehca to handle their mapping of memory to adapter.

   - The usual batch of fixes to bugs found by static checkers etc.
     from intrepid people like Dan Carpenter and Yann Droneaud.

   - A large batch of cxgb4, ocrdma, qib driver updates"

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (102 commits)
  RDMA/ocrdma: Unregister inet notifier when unloading ocrdma
  RDMA/ocrdma: Fix warnings about pointer <-> integer casts
  RDMA/ocrdma: Code clean-up
  RDMA/ocrdma: Display FW version
  RDMA/ocrdma: Query controller information
  RDMA/ocrdma: Support non-embedded mailbox commands
  RDMA/ocrdma: Handle CQ overrun error
  RDMA/ocrdma: Display proper value for max_mw
  RDMA/ocrdma: Use non-zero tag in SRQ posting
  RDMA/ocrdma: Memory leak fix in ocrdma_dereg_mr()
  RDMA/ocrdma: Increment abi version count
  RDMA/ocrdma: Update version string
  be2net: Add abi version between be2net and ocrdma
  RDMA/ocrdma: ABI versioning between ocrdma and be2net
  RDMA/ocrdma: Allow DPP QP creation
  RDMA/ocrdma: Read ASIC_ID register to select asic_gen
  RDMA/ocrdma: SQ and RQ doorbell offset clean up
  RDMA/ocrdma: EQ full catastrophe avoidance
  RDMA/cxgb4: Disable DSGL use by default
  RDMA/cxgb4: rx_data() needs to hold the ep mutex
  ...
2014-04-03 16:57:19 -07:00
Linus Torvalds 3cf59142bc Add support for AMD F16 M30h processor to k10temp driver
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull second round of hwmon updates from Guenter Roeck:
 "Add support for AMD F16 M30h processor to k10temp driver.

  This adds one more patch which had secondary dependencies.  The branch
  point is arbitrary, but I did run a full set of build and qemu tests
  on it.  While there are some new build failures (6 out of 122 in my
  builds), none are due to this commit"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (k10temp) Add support for AMD F16 M30h processor
2014-04-03 16:53:37 -07:00
Linus Torvalds 154d6f18a4 This is the bulk of GPIO changes for v3.15:
- Merged in a branch of irqchip changes from Thomas
   Gleixner: we need to have new callbacks from the
   irqchip to determine if the GPIO line will be eligible
   for IRQs, and this callback must be able to say "no".
   After some thinking I got the branch from tglx and
   have switched all current users over to use this.
 
 - Based on tglx patches, we have added some generic
   irqchip helpers in the gpiolib core. These will
   help centralize code when GPIO drivers have simple
   chained/cascaded IRQs. Drivers will still define
   their irqchip vtables, but the gpiolib core will
   take care of irqdomain set-up, mapping from local
   offsets to Linux irqs, and reserve resources by
   marking the GPIO lines for IRQs.
 
 - Initially the PL061 and Nomadik GPIO/pin control
   drivers have been switched over to use the new
   gpiochip-to-irqchip infrastructure with more
   drivers expected for the next kernel cycle. The
   factoring of just two drivers still makes it worth
   it so it is already a win.
 
 - A new driver for the Synopsys DesignWare APB GPIO
   block.
 
 - Modify the DaVinci GPIO driver to be reusable also
   for the new TI Keystone architecture.
 
 - A new driver for the LSI ZEVIO SoCs.
 
 - Delete the obsolte tnetv107x driver.
 
 - Some incremental work on GPIO descriptors: have
   gpiod_direction_output() use a logical level,
   respecting assertion polarity through ACTIVE_LOW
   flags, adding gpiod_direction_output_raw() for the
   case where you want to set that very value. Add
   gpiochip_get_desc() to fetch a GPIO descriptor from
   a specific offset on a certain chip inside driver
   code.
 
 - Switch ACPI GPIO code over to using
   gpiochip_get_desc() and get rid of gpio_to_desc().
 
 - The ACPI GPIO event handling code has been reworked
   after encountering an actual real life implementation.
 
 - Support for ACPI GPIO operation regions.
 
 - Generic GPIO chips can now be assigned labels/names
   from platform data.
 
 - We now clamp values returned from GPIO drivers to
   the boolean [0,1] range.
 
 - Some improved documentation on how to use the polarity
   flag was added.
 
 - The a large slew of incremental driver updates and
   non-critical fixes. Some targeted for stable.
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Merge tag 'gpio-v3.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull bulk of gpio updates from Linus Walleij:
 "A pretty big chunk of changes this time, but it has all been on
  rotation in linux-next and had some testing.  Of course there will be
  some amount of fixes on top...

   - Merged in a branch of irqchip changes from Thomas Gleixner: we need
     to have new callbacks from the irqchip to determine if the GPIO
     line will be eligible for IRQs, and this callback must be able to
     say "no".  After some thinking I got the branch from tglx and have
     switched all current users over to use this.

   - Based on tglx patches, we have added some generic irqchip helpers
     in the gpiolib core.  These will help centralize code when GPIO
     drivers have simple chained/cascaded IRQs.  Drivers will still
     define their irqchip vtables, but the gpiolib core will take care
     of irqdomain set-up, mapping from local offsets to Linux irqs, and
     reserve resources by marking the GPIO lines for IRQs.

   - Initially the PL061 and Nomadik GPIO/pin control drivers have been
     switched over to use the new gpiochip-to-irqchip infrastructure
     with more drivers expected for the next kernel cycle.  The
     factoring of just two drivers still makes it worth it so it is
     already a win.

   - A new driver for the Synopsys DesignWare APB GPIO block.

   - Modify the DaVinci GPIO driver to be reusable also for the new TI
     Keystone architecture.

   - A new driver for the LSI ZEVIO SoCs.

   - Delete the obsolte tnetv107x driver.

   - Some incremental work on GPIO descriptors: have
     gpiod_direction_output() use a logical level, respecting assertion
     polarity through ACTIVE_LOW flags, adding gpiod_direction_output_raw()
     for the case where you want to set that very value.  Add
     gpiochip_get_desc() to fetch a GPIO descriptor from a specific
     offset on a certain chip inside driver code.

   - Switch ACPI GPIO code over to using gpiochip_get_desc() and get rid
     of gpio_to_desc().

   - The ACPI GPIO event handling code has been reworked after
     encountering an actual real life implementation.

   - Support for ACPI GPIO operation regions.

   - Generic GPIO chips can now be assigned labels/names from platform
     data.

   - We now clamp values returned from GPIO drivers to the boolean [0,1]
     range.

   - Some improved documentation on how to use the polarity flag was
     added.

   - a large slew of incremental driver updates and non-critical fixes.
     Some targeted for stable"

* tag 'gpio-v3.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (80 commits)
  gpio: rcar: Add helper variable dev = &pdev->dev
  gpio-lynxpoint: force gpio_get() to return "1" and "0" only
  gpio: unmap gpio irqs properly
  pch_gpio: set value before enabling output direction
  gpio: moxart: Actually set output state in moxart_gpio_direction_output()
  gpio: moxart: Avoid forward declaration
  gpio: mxs: Allow for recursive enable_irq_wake() call
  gpio: samsung: Add missing "break" statement
  gpio: twl4030: Remove redundant assignment
  gpio: dwapb: correct gpio-cells in binding document
  gpio: iop: fix devm_ioremap_resource() return value checking
  pinctrl: coh901: convert driver to use gpiolib irqchip
  pinctrl: nomadik: convert driver to use gpiolib irqchip
  gpio: pl061: convert driver to use gpiolib irqchip
  gpio: add IRQ chip helpers in gpiolib
  pinctrl: nomadik: factor in platform data container
  pinctrl: nomadik: rename secondary to latent
  gpio: Driver for SYSCON-based GPIOs
  gpio: generic: Use platform_device_id->driver_data field for driver flags
  pinctrl: coh901: move irq line locking to resource callbacks
  ...
2014-04-03 16:44:15 -07:00
Russell King bce5669be3 Merge branch 'devel-stable' into for-next 2014-04-04 00:33:49 +01:00
Russell King 95959e6a06 Merge branches 'amba', 'fixes', 'misc', 'mmci', 'unstable/omap-dma' and 'unstable/sa11x0' into for-next 2014-04-04 00:33:32 +01:00
Russell King aa4c5b962a dmaengine: omap-dma: more consolidation of CCR register setup
We can move the handling of the DMA synchronisation control out of the
prepare functions; this can be pre-calculated when the DMA channel has
been allocated, so we don't need to duplicate this in both prepare
functions.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:32:53 +01:00
Russell King 6ddeb6d844 dmaengine: omap-dma: move IRQ handling to omap-dma
Move the interrupt handling for OMAP2+ into omap-dma, rather than using
the legacy support in the platform code.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:31:53 +01:00
Russell King 596c471b69 dmaengine: omap-dma: move register read/writes into omap-dma.c
Export the DMA register information from the SoC specific data, such
that we can access the registers directly in omap-dma.c, mapping the
register region ourselves as well.

Rather than calculating the DMA channel register in its entirety for
each access, we pre-calculate an offset base address for the allocated
DMA channel and then just use the appropriate register offset.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:31:49 +01:00
Russell King 34a378fcb9 ARM: omap: dma: get rid of 'p' allocation and clean up
The omap_system_dma_plat_info structure is only seven words, it's not
worth the expense of kmalloc()'ing backing store for this only to
release it later.  Note that platform_device_add_data() copies the
data anyway.  Clean up the initialisation of this structure - we don't
even need code to initialise most of this structure.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:31:47 +01:00
Russell King 9834f81314 ARM: omap: move dma channel allocation into plat-omap code
This really needs to be there, because otherwise the plat-omap code can
kfree() this data structure, and then re-use the pointer later.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:31:46 +01:00
Russell King 0ef64986d6 ARM: omap: dma: get rid of errata global
There's no need for this to be a global variable; move it into the
errata configuration function instead.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:31:45 +01:00
Russell King 64a2dc3d3d ARM: omap: clean up DMA register accesses
We can do much better with this by using a structure to describe each
register, rather than code.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:31:44 +01:00
Russell King ad0c381a8b ARM: omap: remove almost-const variables
dma_stride and dma_common_ch_start are only ever initialised to one
known value at initialisation, and are private to each of these files.
There's no point these being variables at all.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:31:43 +01:00
Russell King e38b1485fd ARM: omap: remove references to disable_irq_lch
The disable_irq_lch method is never actually used, so there's not much
point it existing; remove it.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:31:41 +01:00
Russell King b07fd625ac dmaengine: omap-dma: cleanup errata 3.3 handling
Provide a function to read the CSAC/CDAC register, working around the
OMAP 3.2/3.3 erratum (which requires two reads of the register if the
first returned zero.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:30:28 +01:00
Russell King c5ed98b6ae dmaengine: omap-dma: provide register read/write functions
Provide a pair of channel register accessors, and a pair of global
accessors for non-channel specific registers.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:30:25 +01:00
Russell King 45da7b0451 dmaengine: omap-dma: use cached CCR value when enabling DMA
We don't need to read-modify-write the CCR register; we already know
what value it should contain at this point.  Use the cached CCR value
when setting the enable bit.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:30:21 +01:00
Russell King 5987190270 dmaengine: omap-dma: move barrier to omap_dma_start_desc()
We don't need to issue a barrier for every segment of a DMA transfer;
doing this just once per descriptor will do.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:30:18 +01:00
Russell King 965aeb4df1 dmaengine: omap-dma: move clnk_ctrl setting to preparation functions
Move the clnk_ctrl setup to the preparation functions, saving its
value in the omap_desc.  This only needs to be set once per descriptor,
not for each segment, so set it in omap_dma_start_desc() rather than
omap_dma_start().

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:30:15 +01:00
Russell King 893e63e301 dmaengine: omap-dma: improve efficiency loading C.SA/C.EI/C.FI registers
The only thing which changes is which registers are written, so put this
in local variables instead.  This results in smaller code.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:28:47 +01:00
Russell King 470b23f730 dmaengine: omap-dma: consolidate clearing channel status register
Consolidate clearing of the channel status register, rather than open
coding the same functionality in two places.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:28:08 +01:00
Russell King 49ae0b2943 dmaengine: omap-dma: move CCR buffering disable errata out of the fast path
Since we record the CCR register in the dma transaction, we can move the
processing of the iframe buffering errata out of the omap_dma_start().
Move it to the preparation functions.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:28:05 +01:00
Russell King 9043826d88 dmaengine: omap-dma: provide register definitions
Provide our own set of more complete register definitions; this allows
us to get rid of the meaningless 1 << n constants scattered throughout
this code.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-04 00:28:02 +01:00