* linus: (1465 commits)
  ARM: tegra30: clocks: Fix pciex clock registration
  lseek(fd, n, SEEK_END) does *not* go to eof - n
  Linux 3.10-rc6
  smp.h: Use local_irq_{save,restore}() in !SMP version of on_each_cpu().
  powerpc: Fix missing/delayed calls to irq_work
  powerpc: Fix emulation of illegal instructions on PowerNV platform
  powerpc: Fix stack overflow crash in resume_kernel when ftracing
  snd_pcm_link(): fix a leak...
  use can_lookup() instead of direct checks of ->i_op->lookup
  move exit_task_namespaces() outside of exit_notify()
  fput: task_work_add() can fail if the caller has passed exit_task_work()
  xfs: don't shutdown log recovery on validation errors
  xfs: ensure btree root split sets blkno correctly
  xfs: fix implicit padding in directory and attr CRC formats
  xfs: don't emit v5 superblock warnings on write
  mei: me: clear interrupts on the resume path
  mei: nfc: fix nfc device freeing
  mei: init: Flush scheduled work before resetting the device
  sctp: fully initialize sctp_outq in sctp_outq_init
  netiucv: Hold rtnl between name allocation and device registration.
  ...

In dvb_ringbuffer lock-less synchronizationof reader and writer threads is done
with separateread and write pointers. Sincedvb_ringbuffer_flush() modifies the
read pointer, this function must not be called from the writer thread.
This patch removes the dvb_ringbuffer_flush() calls in the dmxdev ringbuffer
write functions, this fixes Oopses "Unable to handle kernel paging request"
I could observe for the call chaindvb_demux_read ->dvb_dmxdev_buffer_read ->
dvb_ringbuffer_read_user -> __copy_to_user (the reader side of the ringbuffer).
The flush calls at the write side are not necessary anyway since ringbuffer_flush
is also called in dvb_dmxdev_buffer_read() when an error condition is set in the
ringbuffer.
This patch should also be applied to stable kernels.
Signed-off-by: Soeren Moch <smoch@web.de>
CC: <stable@vger.kernel.org>
Reviewed-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

The GPIO register caching is the result of wrong assumptions and incomplete
knowledge about the GPIO registers and their functionality.
Today, we know that it is not needed.
It is also limited to a single register and therefore incomplete (newer chips
are using multiple registers).
Instead of extending the caching, get rid of it, because it has no real
benefits and just bloats/complicates the code.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

- add definition for GPIO register 0x09 (reading/input)
- extend the information the chip variants that support GPIO registers 0x08/0x09
- rename EM28XX_R08_GPIO to EM2820_R08_GPIO_CTRL
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

The em25xx/em276x/7x/8x provides 4 GPIO register sets,
each of them consisting of separate read and a write registers.
The same registers are also used by the em2874/174/84.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Remove the silly redefines of pr_err/info/debug.
This improves readability and it also gets rid of a bunch of warnings when
compiling this driver for older kernels using the compatibility media_build
system.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

The r820t_imr() calibration function of the Rafael Micro R820T tuner
generates this error at every tune attempt:
r820t 0-001a: No valid PLL values for 2252021 kHz!
The function was inspired by the original Realtek driver for rtl2832 devices
with the r820t tuner; anyway, in the original code the XTAL frequency of
the tuner was expressed in KHz, while in the kernel driver it is expressed
in Hz; so the calibration failed because of an out-of-range initial value.
The final result of the computation is then passed to the r820t_set_mux()
and r820t_set_pll() functions, but the conversion from KHz to Hz is already
correctly implemented.
Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

The memcpy in shadow_store() could exceed buffer limits when r > 0.
Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

fe->tuner_priv and fe->ops.tuner_ops are initialized twice in r820t_attach().
Remove the redundant initializations and also move fe->ops.tuner_ops
initialization outside of the mutex lock (as in the xc4000 tuner code for example).
Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Remove all links of the subdev's media entity after internal_ops
'unregistered' call and right before unregistering the entity from
a media device.
It is assumed here that an unregistered (orphan) media entity cannot
have links to other entities registered to a media device.
It is also assumed the media links should be created/removed with
the media graph's mutex held.
The above implies that the caller of v4l2_device_unregister_subdev()
must not hold the graph's mutex.
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

This function allows to remove all media entity's links to other
entities, leaving no references to a media entity's links array
at its remote entities.
Currently, when a driver of some entity is removed it will free its
media entities links[] array, leaving dangling pointers at other
entities that are part of same media graph. This is troublesome when
drivers of a media device entities are in separate kernel modules,
removing only some modules will leave others in an incorrect state.
This function is intended to be used when an entity is being
unregistered from a media device.
With an assumption that normally the media links should be created
between media entities registered to a media device, with the graph
mutex held.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

media_entity_cleanup() frees the links array which will be accessed by
media_entity_remove_links() called by v4l2_device_unregister_subdev().
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

media_entity_cleanup() frees the links array which will be accessed by
media_entity_remove_links() called by v4l2_device_unregister_subdev().
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Pull media fixes from Mauro Carvalho Chehab:
 "Series of fixes for 3.10.  There are some usual driver fixes (mostly
  on s5p/exynos playform drivers), plus some fixes at V4L2 core"

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (40 commits)
  [media] soc_camera: error dev remove and v4l2 call
  [media] sh_veu: fix the buffer size calculation
  [media] sh_veu: keep power supply until the m2m context is released
  [media] sh_veu: invoke v4l2_m2m_job_finish() even if a job has been aborted
  [media] v4l2-ioctl: don't print the clips list
  [media] v4l2-ctrls: V4L2_CTRL_CLASS_FM_RX controls are also valid radio controls
  [media] cx88: fix NULL pointer dereference
  [media] DocBook/media/v4l: update version number
  [media] exynos4-is: Remove "sysreg" clock handling
  [media] exynos4-is: Fix reported colorspace at FIMC-IS-ISP subdev
  [media] exynos4-is: Ensure fimc-is clocks are not enabled until properly configured
  [media] exynos4-is: Prevent NULL pointer dereference when firmware isn't loaded
  [media] s5p-mfc: Add NULL check for allocated buffer
  [media] s5p-mfc: added missing end-of-lines in debug messages
  [media] s5p-mfc: v4l2 controls setup routine moved to initialization code
  [media] s5p-mfc: separate encoder parameters for h264 and mpeg4
  [media] s5p-mfc: Remove special clock usage in driver
  [media] s5p-mfc: Remove unused s5p_mfc_get_decoded_status_v6() function
  [media] v4l2: mem2mem: save irq flags correctly
  [media] coda: v4l2-compliance fix: add VIDIOC_CREATE_BUFS support
  ...

Pull clock framework fixes from Mike Turquette:
 "Half of the fixes here are for Exynos5, fixing regressions in CPUfreq
  due to the common clock framework conversion as well as one fix which
  allows the platform to properly reboot again.

  One core framework fix patches up a memory leak, another fixes a build
  error for the SPEAr platform and finally a Tegra-specific fix allows
  PCIe to initialize properly on that platform again"

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux:
  ARM: tegra30: clocks: Fix pciex clock registration
  clk: exynos5250: Add CLK_IGNORE_UNUSED flag for pmu clock
  clk: spear: fix build error for spear3xx
  clk: samsung: Fix pll36xx_recalc_rate to handle kdiv properly
  clk: exynos5250: Add sclk_mpll to the parent list of mout_cpu clock
  clk: exynos5250: Update cpufreq related clocks for EXYNOS5250
  clk: remove notifier from list before freeing it

Error handling of usb_submit_urb() is not as all others in imon_probe().
It just unlocks mutexes and returns nonzero leaving all already
allocated resources unfreed.
The patch makes sure all the resources are deallocated.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

use module_pci_driver instead of init/exit, make code clean
Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

use module_pci_driver instead of init/exit, make code clean.
Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

use module_pci_driver instead of init/exit, make code clean.
Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

use module_pci_driver instead of init/exit, make code clean.
Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

use module_pci_driver instead of init/exit, make code clean.
Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

use module_pci_driver instead of init/exit, make code clean.
Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

As USB/PCI/MEDIA_SUPPORT dependencies can be tristate, we can't
simply make the bool menu to be dependent on it. Everything below
the menu should also depend on it, otherwise, we risk to allow
building them with 'y', while only 'm' would be supported.

So, add an IF just before everything below, in order to avoid
such risks.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

The sensor is powered by three supplies. Use the bulk regulator API to
enable and disable them instead of performing the operations manually.
This fixes a warning caused by ignoring the return value of
regulator_enable().
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Add OF support for the mt9p031 sensor driver.
Alongside this patch sorts the header inclusion alphabetically.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/i2c/ths8200.c: In function ‘ths8200_g_register’:
drivers/media/i2c/ths8200.c:121:21: warning: unused variable ‘client’ [-Wunused-variable]
drivers/media/i2c/ths8200.c: In function ‘ths8200_s_register’:
drivers/media/i2c/ths8200.c:132:21: warning: unused variable ‘client’ [-Wunused-variable]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Prabhakar Lad <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Fix uninitialized fields and a missing TRY_FMT implementation in saa6752hs.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

- map overlay format values to the supported ranges
- set colorspace
- zero priv field
- fix cliplist handling
- fix field handling
- initialize ovbuf values
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

This is a global field, not a per-filehandle field.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

These fields are global, not per-filehandle.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

This is global data, not per-filehandle data.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

This information is already available in vfl_type in video_device.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

This cleans up the saa712x setup code and there are no functional changes.
Signed-off-by: Ismael Luceno <ismael.luceno@corp.bluecherry.net>
[hans.verkuil@cisco.com: add clarification that this is cleanup only]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

The full datasheets are available from TI website:-
http://www.ti.com/product/ths8200
Note: This patch adds support only for progressive format
as of now.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mats Randgaard <mats.randgaard@cisco.com>
Signed-off-by: Martin Bugge <martin.bugge@cisco.com>
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

- do exact matching for special formats like PAL-M
- drop autodetect support: it's non-standard, and it is bogus as well since there
  is no way to get back the detected standard since neither g_std nor querystd are
  implemented.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Explicitly mention that this ioctl should return V4L2_STD_UNKNOWN if
not signal was detected.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Improve the querystd comment.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Currently, if the norm set is V4L2_STD_ALL, then autodetect the current
standard and use that. This is non-standard behavior, and in fact it hasn't
worked for a very long time: before s_std is called in this driver, the
v4l2 core will mask it with the tvnorms field. So even if the application
passes V4L2_STD_ALL, the zoran driver will always see a subset of that.
Since nobody ever complained about this we just remove this non-standard
functionality.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>