This section was horribly out of date. A lot of references to old and
obsolete behavior have been dropped.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

[m.chehab@samsung.com: removed "Opening and Closing Devices" from the
 list of changes, as the patch with such change weren't applied]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

The old table is most definitely wrong. All applications and all
drivers that I have ever tested follow the corrected table. Furthermore,
that's what all applications expect as well. Any drivers that do not
follow the corrected table are broken and should be fixed.

This patch drops the old table and replaces it with the corrected
table. This should prevent a lot of confusion.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Updates for the "Tuners and Modulators", "Video Standards" and
"Digital Video (DV) Timings" sections.

Besides lots of trivial little fixes the main changes are:

- Remove two footnotes from "Video Standards": the first is a discussion
  of alternative methods of setting standards, which is pretty pointless
  since the standards API is effectively frozen anyway, and the second
  points to 'rationale' that makes little or no sense to me.

- Clarify a few things in the "Digital Video (DV) Timings" section.
  It was awkwardly formatted as well: there used to be a list with
  multiple bullets that has been reduced to a single item, so drop the
  list and rewrite that text.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Updates sections "Querying Capabilities", "Application Priority",
"Video Inputs and Outputs" and "Audio Inputs and Outputs".
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

It's now 2014, so update those copyright years. Also fix a typo in the introduction
and mention that this document also covers output, codec and remote control
devices.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Mauro's old redhat email address is no longer valid, update to the
current email address.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

The VESA standard added a version 2 of the reduced blanking formula.
Note in the comment that this is not yet supported by the v4l2_detect_cvt
function. Obviously this should be implemented eventually, but for now add
this as a reminder.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

VESA added two new DMT timings in their latest standard document. Add these
to v4l2-dv-timings.h.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Fixes all style warnings from scripts/checkpatch -f
Signed-off-by: Dean Anderson <linux-dev@sensoray.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

module_usb_driver eliminates the boilerplate and makes the code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

This applies to HDMI-map register 0x69.
So far we have been using HPA manual mode.
This way we had control of HPA which could be
set after EDID had been programmed.

Using a Mac Mini with mini-displayport to DVI-D converter as source
caused the adv7842 to lock up and fail to detect any further signals.

After experimenting with different configurations it was found that
using the HPA auto mode and in addition letting RX-termination
be controlled by HPA prevented this error from occuring.

I was not able to re-create this problem on the adv7604.
Signed-off-by: Martin Bugge <marbugge@cisco.com>
Cc: Mats Randgaard <matrandg@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Clear any pending AVI checksum-errors.
To be able to display last received AVI.
Signed-off-by: Martin Bugge <marbugge@cisco.com>
Cc: Mats Randgaard <matrandg@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Incorrect registers used for pixelclock read-out.
Same registers as for adv7604 which actually gave an almost
correct read-out, even they are not documented for adv7842.
Corrected deep-color pixel-clock correction.
Signed-off-by: Martin Bugge <marbugge@cisco.com>
Cc: Mats Randgaard <matrandg@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

If the input signal is DVI-D and quantization range is RGB full range,
gain and offset must be adjusted to get the right range on the output.
Copied and adopted from adv7604.
Signed-off-by: Martin Bugge <marbugge@cisco.com>
Cc: Mats Randgaard <matrandg@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

I came across this while checking the kernel use of V4L2_CTRL_FLAG_DISABLED.

This flag should not be used with the control framework. Instead, just don't
add the control at all.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

This define uses the deprecated interruptible_sleep_on_timeout
function. Since this define is unused anyway we just remove it.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

usbtv-video.c needs module.h. So move the module.h include from usbtv-core.c to usbtv.h,
that way both core.c and video.c have it.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: Federico Simoncelli <fsimonce@redhat.com>
Reviewed-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Linus 3.14-rc1

* tag 'v3.14-rc1': (11781 commits)
  Linus 3.14-rc1
  hpfs: optimize quad buffer loading
  hpfs: remember free space
  parisc: add flexible mmap memory layout support
  parisc: Make EWOULDBLOCK be equal to EAGAIN on parisc
  parisc: convert uapi/asm/stat.h to use native types only
  parisc: wire up sched_setattr and sched_getattr
  parisc: fix cache-flushing
  parisc/sti_console: prefer Linux fonts over built-in ROM fonts
  hwmon: Fix SENSORS_TMP102 dependencies to eliminate build errors
  hwmon: Fix SENSORS_LM75 dependencies to eliminate build errors
  tools/power turbostat: introduce -s to dump counters
  tools/power turbostat: remove unused command line option
  afs: proc cells and rootcell are writeable
  tile: remove compat_sys_lookup_dcookie declaration to fix compile error
  Revert "PCI: Remove from bus_list and release resources in pci_release_dev()"
  ARM: multi_v7_defconfig: remove redundant entries and re-enable TI_EDMA
  ARM: multi_v7_defconfig: add mvebu drivers
  clocksource: kona: Add basic use of external clock
  drivers: bus: fix CCI driver kcalloc call parameters swap
  ...

Pull parisc updates from Helge Deller:
 "The three major changes in this patchset is a implementation for
  flexible userspace memory maps, cache-flushing fixes (again), and a
  long-discussed ABI change to make EWOULDBLOCK the same value as
  EAGAIN.

  parisc has been the only platform where we had EWOULDBLOCK != EAGAIN
  to keep HP-UX compatibility.  Since we will probably never implement
  full HP-UX support, we prefer to drop this compatibility to make it
  easier for us with Linux userspace programs which mostly never checked
  for both values.  We don't expect major fall-outs because of this
  change, and if we face some, we will simply rebuild the necessary
  applications in the debian archives"

* 'parisc-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: add flexible mmap memory layout support
  parisc: Make EWOULDBLOCK be equal to EAGAIN on parisc
  parisc: convert uapi/asm/stat.h to use native types only
  parisc: wire up sched_setattr and sched_getattr
  parisc: fix cache-flushing
  parisc/sti_console: prefer Linux fonts over built-in ROM fonts

HPFS needs to load 4 consecutive 512-byte sectors when accessing the
directory nodes or bitmaps.  We can't switch to 2048-byte block size
because files are allocated in the units of 512-byte sectors.

Previously, the driver would allocate a 2048-byte area using kmalloc,
copy the data from four buffers to this area and eventually copy them
back if they were modified.

In the current implementation of the buffer cache, buffers are allocated
in the pagecache.  That means that 4 consecutive 512-byte buffers are
stored in consecutive areas in the kernel address space.  So, we don't
need to allocate extra memory and copy the content of the buffers there.

This patch optimizes the code to avoid copying the buffers.  It checks
if the four buffers are stored in contiguous memory - if they are not,
it falls back to allocating a 2048-byte area and copying data there.
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Previously, hpfs scanned all bitmaps each time the user asked for free
space using statfs.  This patch changes it so that hpfs scans the
bitmaps only once, remembes the free space and on next invocation of
statfs it returns the value instantly.

New versions of wine are hammering on the statfs syscall very heavily,
making some games unplayable when they're stored on hpfs, with load
times in minutes.

This should be backported to the stable kernels because it fixes
user-visible problem (excessive level load times in wine).
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add support for the flexible mmap memory layout (as described in
http://lwn.net/Articles/91829). This is especially very interesting on
parisc since we currently only support 32bit userspace (even with a
64bit Linux kernel).
Signed-off-by: Helge Deller <deller@gmx.de>

On Linux, only parisc uses a different value for EWOULDBLOCK which
causes a lot of troubles for applications not checking for both values.
Since the hpux compat is long dead, make EWOULDBLOCK behave the same as
all other architectures.
Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
Signed-off-by: Helge Deller <deller@gmx.de>

The stat.h header file is exported to userspace. Some userspace
applications failed to compile due to missing/unknown types, so we
better convert it to use native types only (like it's done on other
architectures too).
Signed-off-by: Helge Deller <deller@gmx.de>

Signed-off-by: Helge Deller <deller@gmx.de>

This commit:
f8dae006: parisc: Ensure full cache coherency for kmap/kunmap
caused negative caching side-effects, e.g. hanging processes with expect and
too many inequivalent alias messages from flush_dcache_page() on Debian 5 systems.

This patch now partly reverts it and has been in production use on our debian buildd
makeservers since a week without any major problems.
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org # v3.9+
Signed-off-by: Helge Deller <deller@gmx.de>

The built-in ROM fonts lack many necessary ASCII characters, which is
why it makes sens to prefer the Linux fonts instead if they are
available.  This makes consoles on STI graphics cards which are not
supported by the stifb driver (e.g. Visualize FXe) looks much nicer.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v3.13

Pull hwmon kconfig fixes from Jean Delvare.

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: Fix SENSORS_TMP102 dependencies to eliminate build errors
  hwmon: Fix SENSORS_LM75 dependencies to eliminate build errors

Pull SLAB changes from Pekka Enberg:
 "Random bug fixes that have accumulated in my inbox over the past few
  months"

* 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux:
  mm: Fix warning on make htmldocs caused by slab.c
  mm: slub: work around unneeded lockdep warning
  mm: sl[uo]b: fix misleading comments
  slub: Fix possible format string bug.
  slub: use lockdep_assert_held
  slub: Fix calculation of cpu slabs
  slab.h: remove duplicate kmalloc declaration and fix kernel-doc warnings

Pull turbostat updates from Len Brown.

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: introduce -s to dump counters
  tools/power turbostat: remove unused command line option
  turbostat: Add option to report joules consumed per sample
  turbostat: run on HSX
  turbostat: Add a .gitignore to ignore the compiled turbostat binary
  turbostat: Clean up error handling; disambiguate error messages; use err and errx
  turbostat: Factor out common function to open file and exit on failure
  turbostat: Add a helper to parse a single int out of a file
  turbostat: Check return value of fscanf
  turbostat: Use GCC's CPUID functions to support PIC
  turbostat: Don't attempt to printf an off_t with %zx
  turbostat: Don't put unprocessed uapi headers in the include path

Pull ARM SoC fixes from Olof Johansson:
 "Here's a set of patches for (hopefully) -rc1.  Some of them are fixes,
  but a good number of them also do things such as enable new drivers in
  the defconfigs for platforms that have such devices, increases
  coverage of the multiplatform defconfig and some DTS changes that
  plumbs up some of the devices that now have bindings and driver
  support.

  The commit dates are recent; we've mostly collected these fixes in the
  last few days but I also had to rebuild the branch yesterday to sort
  out some internal conflicts which reset the timestamps.  The changes
  should have been tested by each platform maintainer already (and few
  of them have cross-platform impact) so I'm personally not too
  concerned by it at this time"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits)
  ARM: multi_v7_defconfig: remove redundant entries and re-enable TI_EDMA
  ARM: multi_v7_defconfig: add mvebu drivers
  clocksource: kona: Add basic use of external clock
  drivers: bus: fix CCI driver kcalloc call parameters swap
  ARM: dts: bcm28155-ap: Fix Card Detection GPIO
  ARM: multi_v7_defconfig: Select CONFIG_AT803X_PHY
  ARM: keystone: config: fix build warning when CONFIG_DMADEVICES is not set
  MAINTAINERS: ARM: SiRF: use regex patterns to involve all SiRF drivers
  ARM: dts: zynq: Add SDHCI nodes
  ARM: hisi: don't select SMP
  ARM: tegra: rebuild tegra_defconfig to add DEBUG_FS
  ARM: multi_v7: copy most options from tegra_defconfig
  ARM: iop32x: fix power off handling for the EM7210 board
  ARM: integrator: restore static map on the CP
  ARM: msm_defconfig: Enable MSM clock drivers
  ARM: dts: msm: Add clock controller nodes and hook into uart
  ARM: OMAP4+: move errata initialization to omap4_pm_init_early
  ARM: OMAP4460: cpuidle: Extend PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD on cpuidle
  ARM: mvebu: fix compilation warning on Armada 370 (i.e. non-SMP)
  ARM: shmobile: r8a7790.dtsi: ficx i2c[0-3] clock reference
  ...

Similar to what was done for the lm75 driver.

Add depends on THERMAL since that is what provides the
register/unregister functions above, but only if THERMAL_OF was
selected as this is an optional feature of the driver.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Eduardo Valentin <eduardo.valentin@ti.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>

Based on an earlier attempt by Randy Dunlap.

Fix SENSORS_LM75 dependencies to eliminate build errors:

drivers/built-in.o: In function `lm75_remove':
lm75.c:(.text+0x12bd8c): undefined reference to `thermal_zone_of_sensor_unregister'
drivers/built-in.o: In function `lm75_probe':
lm75.c:(.text+0x12c123): undefined reference to `thermal_zone_of_sensor_register'

Add depends on THERMAL since that is what provides the
register/unregister functions above, but only if THERMAL_OF was
selected as this is an optional feature of the driver.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Eduardo Valentin <eduardo.valentin@ti.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>

The new option allows just run turbostat and get dump of counter values. It's
useful when we have something more than one program to test.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

The -s is not used, let's remove it, and update quick help accordingly.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

Pull misc kbuild changes from Michal Marek:
 "The non-critical part of kbuild is small this time:
   - Three fixes for make deb-pkg
   - A new coccinelle check

  One of the deb-pkg fixes is a leftover from the last merge window,
  hence the merge commit"

* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  deb-pkg: Fix building for MIPS big-endian or ARM OABI
  deb-pkg: Fix cross-building linux-headers package
  scripts: Coccinelle script for pm_runtime_* return checks with IS_ERR_VALUE
  deb-pkg: Inhibit initramfs builders if CONFIG_BLK_DEV_INITRD is not set

Both proc files are writeable and used for configuring cells. But
there is missing correct mode flag for writeable files. Without
this patch both proc files are read only.

[ It turns out they aren't really read-only, since root can write to
  them even if the write bit isn't set due to CAP_DAC_OVERRIDE ]
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>