Allow the user to override the detection of the sink's audio capabilities
from EDID. Not all sinks support the required EDID level to specify
whether they handle audio over the display connection, so allow the user
to enable it manually.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

Rely on monitor's audio capability to turn on audio output for HDMI.
Tested-by: NWu Fengguang <fengguang.wu@intel.com>
Signed-off-by: NZhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

This will turn on DP audio output by checking monitor's audio
capability.
Signed-off-by: NZhenyu Wang <zhenyuw@linux.intel.com>
[ickle: rebase onto recent changes and rearranged for clarity]
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

To help to determine if digital display port needs to enable
audio output or not. This one adds a helper to get monitor's
audio capability via EDID CEA extension block.
Tested-by: NWu Fengguang <fengguang.wu@intel.com>
Signed-off-by: NZhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: NAdam Jackson <ajax@redhat.com>
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

The time between start of the pixel clock and backlight enable is a basic
panel timing constraint.  If the Panel Power On/Off registers are found
to be 0, assume we are booting without VBIOS initialization and set these
registers to something reasonable.

Change-Id: Ibed6cc10d46bf52fd92e0beb25ae3525b5eef99d
Signed-off-by: NBryan Freed <bfreed@chromium.org>
[ickle: rearranged into a separate function to distinguish its role from
simply parsing the VBIOS tables.]
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

If userspace is submitting so many long running batches that the ring
becomes full, throttle by sleeping for a 1ms before checking for free
space. Simply yielding was causing excessive scheduler overhead whilst
making no progress.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

In i2c GPIO fallback, index 6 is reserved for nothing.
Signed-off-by: NZhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

FDI_PLL_BIOS_0 register is for Ironlake only, don't apply to
Sandybridge.
Original-patch-by: NZhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

Since the PLL may still be on, and the training pattern may not be
correct.  Fixes suspend/resume on my PCH eDP test system.
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
[ickle: minor merge conflict and silence the compiler]
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

Freeing the Hardware Status Page was writing to the HWS register in
order to disable the GPU writing to the HWS page. Unfortunately, we were
writing to the mmio register after unmapping the register space, hence
the oops.
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

This reverts commit 6939a5ac.

Daniel Vetter supplied a set of fixes for all the module unload bugs he
could trigger on his machines, so let the fun recommence!

The enter argument as implemented by commit 413d45d3 (drm, kdb, kms:
Add an enter argument to mode_set_base_atomic() API) should be more
descriptive as to what it does vs just passing 1 and 0 around.

There is no runtime behavior change as a result of this patch.
Reported-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NJason Wessel <jason.wessel@windriver.com>
CC: David Airlie <airlied@linux.ie>
CC: dri-devel@lists.freedesktop.org
Signed-off-by: NDave Airlie <airlied@redhat.com>

When changing VTs non-atomically the kernel works in conjunction with
the Xserver in user space and receives the LUT information from the
Xserver via a system call.  When changing modes atomically for kdb,
this information must be saved and restored without disturbing user
space as if nothing ever happened.

There is a short cut used by this patch where gamma_store is used as
the save space.  If this turns out to be a problem in the future a
pre-allocated chunk of memory will be required for each crtc to save
and restore the LUT information.
Signed-off-by: NJason Wessel <jason.wessel@windriver.com>
CC: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: David Airlie <airlied@linux.ie>
CC: dri-devel@lists.freedesktop.org
Signed-off-by: NDave Airlie <airlied@redhat.com>

This reverts commit ff773714.

A generic solution is needed to save and retore the LUT information.

CC: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: dri-devel@lists.freedesktop.org
Signed-off-by: NJason Wessel <jason.wessel@windriver.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

TTM-based DRM drivers need to be able to bind user memory to the AGP
aperture. This patch fixes the "[TTM] AGP Bind memory failed." errors
and the subsequent fallout seen with the nouveau driver.
Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Tested-by: NGrzesiek Sójka <pld@pfu.pl>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Function ttm_bo_wait_unreserved can be slightly simplified.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

This reverts commit f28488c2.

On my rv610 test machine the monitor failed to light up after this.
Signed-off-by: NDave Airlie <airlied@redhat.com>

We need the unlocked variant for the new codepath introduced to fix the
race condition in master recently.
Signed-off-by: NDave Airlie <airlied@redhat.com>

Fixes cursor corruption in certain cases.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: NDave Airlie <airlied@redhat.com>

Fix SDIO suspend/resume regression introduced by 4c2ef25f "mmc: fix
all hangs related to mmc/sd card insert/removal during suspend/resume":

  PM: Syncing filesystems ... done.
  Freezing user space processes ... (elapsed 0.01 seconds) done.
  Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
  Suspending console(s) (use no_console_suspend to debug)
  pm_op(): platform_pm_suspend+0x0/0x5c returns -38
  PM: Device pxa2xx-mci.0 failed to suspend: error -38
  PM: Some devices failed to suspend

4c2ef25f moved the card removal/insertion mechanism out of MMC's
suspend/resume path and into pm notifiers (mmc_pm_notify), and that
broke SDIO's expectation that mmc_suspend_host() will remove the card,
and squash the error, in case -ENOSYS is returned from the bus suspend
handler (mmc_sdio_suspend() in this case).

mmc_sdio_suspend() is using this whenever at least one of the card's SDIO
function drivers does not have suspend/resume handlers - in that case
it is agreed to force removal of the entire card.

This patch fixes this regression by trivially bringing back that part of
mmc_suspend_host(), which was removed by 4c2ef25f.
Reported-and-tested-by: NSven Neumann <s.neumann@raumfeld.com>
Signed-off-by: NOhad Ben-Cohen <ohad@wizery.com>
Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: <stable@kernel.org>
Acked-by: NNicolas Pitre <nico@fluxnic.net>
Signed-off-by: NChris Ball <cjb@laptop.org>

Commit 07934481 "DMAENGINE: generic channel status v2" changed the interface for
how dma channel progress is retrieved.  It inadvertently exported an internal
helper function ioat_tx_status() instead of ioat_dma_tx_status().  The latter
polls the hardware to get the latest completion state, while the helper just
evaluates the current state without touching hardware.  The effect is that we
end up waiting for completion timeouts or descriptor allocation errors before
the completion state is updated.

iperf (before fix):
[SUM]  0.0-41.3 sec   364 MBytes  73.9 Mbits/sec

iperf (after fix):
[SUM]  0.0- 4.5 sec   499 MBytes   940 Mbits/sec

This is a regression starting with 2.6.35.

Cc: <stable@kernel.org>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Cc: Maciej Sosnowski <maciej.sosnowski@intel.com>
Reported-by: NRichard Scobie <richard@sauce.co.nz>
Signed-off-by: NDan Williams <dan.j.williams@intel.com>

Currently we set all skbs with CHECKSUM_UNNECESSARY, even
those whose protocol we don't know. This patch just
add the CHECKSUM_COMPLETE tag for non TCP/UDP packets.
Reported-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NBreno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: NJay Vosburgh <fubar@us.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

At least one board using the FEC driver does not have a conventional
PHY attached to it, it is directly connected to a somewhat simple
ethernet switch (the board is the SnapGear/LITE, and the attached
4-port ethernet switch is a RealTek RTL8305). This switch does not
present the usual register interface of a PHY, it presents nothing.
So a PHY scan will find nothing - it finds ID's of 0 for each PHY
on the attached MII bus.

After the FEC driver was changed to use phylib for supporting PHYs
it no longer works on this particular board/switch setup.

Add code support to use a fixed phy if no PHY is found on the MII bus.
This is based on the way the cpmac.c driver solved this same problem.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This add the product id of the touch screen found on ACER Aspire 5738PZ.  Works
with hid-cando driver.

Signed-off-by: Francois Jaouen<francois.jaouen@laposte.net>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

This should pass "buf" to bvec_kunmap_irq() instead of "bv".  The api is
like kmap_atomic() instead of kmap().
Signed-off-by: NDan Carpenter <error27@gmail.com>
Acked-by: NGeoff Levand <geoff@infradead.org>
Signed-off-by: NJens Axboe <jaxboe@fusionio.com>

I see the following error message in my kernel log from time to time:
radeon 0000:07:00.0: ffff88007c334000 reserve failed for wait
radeon 0000:07:00.0: ffff88007c334000 reserve failed for wait

After investigation, it turns out that there's nothing to be afraid of
and everything works as intended. So remove the spurious log message.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Reviewed-by: NJerome Glisse <jglisse@redhat.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Missing parens.

fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=30718Reported-by: NDave Gilbert <freedesktop@treblig.org>
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Reviewed-by: NMatt Turner <mattst88@gmail.com>
Cc: stable@kernel.org
Signed-off-by: NDave Airlie <airlied@redhat.com>

Make TV standard and DFP table revisions debug only.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

These bits are used for internal communication and should
be left enabled.  This may fix s/r issues on some systems.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

We should not allocate any object into unmappable vram if we
have no means to access them which on all GPU means having the
CP running and on newer GPU having the blit utility working.

This patch limit the vram allocation to visible vram until
we have acceleration up and running.

Note that it's more than unlikely that we run into any issue
related to that as when acceleration is not woring userspace
should allocate any object in vram beside front buffer which
should fit in visible vram.

V2 use real_vram_size as mc_vram_size could be bigger than
   the actual amount of vram

[airlied: fixup r700_cp_stop case]
Signed-off-by: NJerome Glisse <jglisse@redhat.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

This device generates ABS_Z and ABS_RX events, while it should be
generating ABS_X and ABS_Y instead. Using the MULTI_INPUT quirk solves
this issue.

Reference: https://bugs.launchpad.net/ubuntu/+bug/620609/Signed-off-by: NPierre BAILLY <pierre@substantiel.fr>
Signed-off-by: NAnisse Astier <anisse@astier.eu>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

commit 511d2224 (tg3: 64 bit stats on all arches), overlooked the
rx_dropped accounting.

We use a full "struct rtnl_link_stats64" to hold rx_dropped value, but
forgot to report it in tg3_get_stats64().

Use an "unsigned long" instead to shrink "struct tg3" by 176 bytes, and
report this value to stats readers.

Increment rx_dropped counter for oversized frames.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
CC: Michael Chan <mchan@broadcom.com>
CC: Matt Carlson <mcarlson@broadcom.com>
Acked-by: NMatt Carlson <mcarlson@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

For carrier detection to work properly when binding the driver with a cable
unplugged, netif_carrier_off() should be called after register_netdev(),
not before.
Signed-off-by: NPaul Fertser <fercerpav@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Stanse found that i2400m_rx frees skb, but still uses skb->len even
though it has skb_len defined. So use skb_len properly in the code.

And also define it unsinged int rather than size_t to solve
compilation warnings.
Signed-off-by: NJiri Slaby <jslaby@suse.cz>
Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Cc: linux-wimax@intel.com
Acked-by: NInaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Stanse found that ia_init_one locks a spinlock and inside of that it
calls ia_start which calls:
* request_irq
* tx_init which does kmalloc(GFP_KERNEL)

Both of them can thus sleep and result in a deadlock. I don't see a
reason to have a per-device spinlock there which is used only there
and inited right before the lock location. So remove it completely.
Signed-off-by: NJiri Slaby <jslaby@suse.cz>
Cc: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Stanse found we do in console_show:
  kfree_skb(skb);
  return skb->len;
which is not good. Fix that by remembering the len and use it in the
function instead.
Signed-off-by: NJiri Slaby <jslaby@suse.cz>
Cc: Chas Williams <chas@cmf.nrl.navy.mil>
Acked-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

with hardware slow in negotiation, the system did freeze
while trying to mount root on nfs at boot time.

the link state has not been initialised so network stack
tried to start transmission right away. this caused instant
retries, as the driver solely stated business upon link down,
rendering the system unusable.

notify carrier off initially to prevent transmission until
phylib will report link up.
Signed-off-by: NOskar Schirmer <oskar@linutronix.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Currently the pressure range in Cintiq 21UX2 is limited to half of the
supported. This patch fixes the problem.
Signed-off-by: NAristeu Rozanski <aris@redhat.com>
Acked-by: NPing Cheng <pingc@wacom.com>
CC: stable@kernel.org
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Must drop reference taken by blk_make_request().
Signed-off-by: NMike Snitzer <snitzer@redhat.com>
Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org # .35.x
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>