Force DVI mode if the user specifies radeon.audio=0.  The driver
doesn't handle HDMI mode properly in some cases.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=27731Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@gmail.com>

Check if there is a big enough dp clock & enough dp lane to
drive the video mode provided.
Signed-off-by: NJerome Glisse <jglisse@redhat.com>
Reviewed-By: NAlex Deucher <alexdeucher@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: NDave Airlie <airlied@gmail.com>

GPL V2 should be GPL v2
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

busy_loop() returns negative error code, thus change err variable
from u32 to int to properly propagate correct error code.

Also remove unneeded initialization for err and i variables.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Now vgacon_scrollback_startup() uses slab, not bootmem,
the comment above it is obsolete, so does __init_refok.
Signed-off-by: NWANG Cong <amwang@redhat.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

lcd_device_register may return ERR_PTR, so a check is added for this value
before the dereference.  All of the other changes reorganize the error
handling code in this function to avoid duplicating all of it in the added
case.

In the original code, in one case, the global variable fb_buffer was set to
NULL in error code that appears after this variable is initialized.  This
is done now in all error handling code that has this property.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier f;
@@
f(...) { ... return ERR_PTR(...); }

@@
identifier r.f, fld;
expression x;
statement S1,S2;
@@
 x = f(...)
 ... when != IS_ERR(x)
(
 if (IS_ERR(x) ||...) S1 else S2
|
*x->fld
)
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Acked-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Current implementation calls pxa168fb_check_var twice in pxa168fb_probe.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Current implementation puts CONFIG_CPU_FREQ at wrong place, CONFIG_CPU_FREQ
is for lcd_da8xx_cpufreq_deregister not for unregister_framebuffer.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Reported-by: NXavier Chantry <chantry.xavier@gmail.com>
Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Fixes the DVI-D output on that board (fdo bug 32645).
Reported-by: NBryan Quigley <BryanQuigley@Ubuntu.com>
Signed-off-by: NFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

This is just barely enough to stop a never-ending IRQ storm that can
be triggered by our 3D driver.  We have no idea what this engine is..
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Was hitting TPC+1's regs by accident, oops.
Reported-by: NChristoph Bumiller <e0425955@student.tuwien.ac.at>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

There's a reported case where probing for f75375 causes the system
to hang completely, in this case there's an adt7473 at the same
i2c address.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Needed for timer queries in the 3D driver.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@gmail.com>

Fix a shutdown regression caused by 2a2d31c8 ("intel_idle: open
broadcast clock event").  The clockevent framework can automatically
shutdown broadcast timers for hotremove CPUs.  And we get a shutdown
regression when we shutdown broadcast timer for hot remove CPU, so just
delete some code.

Also fix some section mismatch.
Reported-by: NAri Savolainen <ari.m.savolainen@gmail.com>
Signed-off-by: NShaohua Li <shaohua.li@intel.com>
Tested-by: NLinus Torvalds <torvalds@linux-foundation.org>
Cc: stable@kernel.org
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

error_bo and pinned_bo could be used uninitialised if there were no
active buffers.

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

The opregion is a shared memory region between ACPI and the graphics
driver. As the ACPI mapping has been changed to cachable in commit
6d5bbf00, mapping the intel opregion
non-cachable now fails. As no bus-master hardware is involved in the
opregion, cachable map should do no harm.

Tested on a Fujitsu Lifebook P8010.
Signed-off-by: NMichael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
[ickle: convert to acpi_os_ioremap for consistency]
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

If the driver calls into the kernel to wait for a breadcrumb to pass,
but hasn't enabled interrupts, fallback to polling the breadcrumb value.
Reported-by: NChris Clayton <chris2553@googlemail.com>
Tested-by: NChris Clayton <chris2553@googlemail.com>
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

We only have sufficient information for accurate (sub-frame) timestamping
when the modesetting is under our control.
Reported-by: NChris Clayton <chris2553@googlemail.com>
Tested-by: NChris Clayton <chris2553@googlemail.com>
Reviewed-by: NMario Kleiner <mario.kleiner@tuebingen.mpg.de>
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

Reported-by: NChris Clayton <chris2553@googlemail.com>
Tested-by: NChris Clayton <chris2553@googlemail.com>
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

We can only utilize the stolen portion of the GTT if we are in sole
charge of the hardware. This is only true if using GEM and KMS,
otherwise VESA continues to access stolen memory.
Reported-by: NArnd Bergmann <arnd@arndb.de>
Reported-by: NFrederic Weisbecker <fweisbec@gmail.com>
Tested-by: NJiri Olsa <jolsa@redhat.com>
Tested-by: NFrederic Weisbecker <fweisbec@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

Implement a suggestion from Russell to drop the use of blockend
interrupts altogether and instead rely on the data counter.

Tested with error-free cards on U300, U8500 and RealView PB1176.
Signed-off-by: NUlf Hansson <ulf.hansson@stericsson.com>
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

You always needed them when you were a module, but the builtin versions
of the macros used to be more lenient.
Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>

Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@gmail.com>

Don't reset if the engine isn't busy.  This matches the behavior of
previous asics.  Reseting a non-hung block can lead to a hang.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=33272Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@gmail.com>

Seems some other boards do this as well.
Reported-by: NAndrea Merello <andrea.merello@gmail.com>
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: NDave Airlie <airlied@gmail.com>

Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@gmail.com>

I'm amazed but not really surprised this worked on x86...
Signed-off-by: NMichel Dänzer <daenzer@vmware.com>
Signed-off-by: NDave Airlie <airlied@gmail.com>

commit 3f0d3d01 adds a check for
PNP device id to the common tpm_tis_init() function, which in some
cases (force=1) will be called without the device being a member of
a pnp_dev. Oopsing and panics ensue.

Move the test up to before the call to tpm_tis_init(), since it
just modifies a global variable anyway.
Signed-off-by: NOlof Johansson <olof@lixom.net>
Acked-by: NRajiv Andrade <srajiv@linux.vnet.ibm.com>
Signed-off-by: NJames Morris <jmorris@namei.org>

If duration variable value is 0 at this point, it's because
chip->vendor.duration wasn't filled by tpm_get_timeouts() yet.
This patch sets then the lowest timeout just to give enough
time for tpm_get_timeouts() to further succeed.

This fix avoids long boot times in case another entity attempts
to send commands to the TPM when the TPM isn't accessible.
Signed-off-by: NRajiv Andrade <srajiv@linux.vnet.ibm.com>
Signed-off-by: NJames Morris <jmorris@namei.org>

Starting with SandyBridge (though possible with earlier hacked BIOSes),
the BIOS may initialise the IGFX as secondary to a discrete GPU. Prior,
it would simply disable the integrated GPU. So we adjust our PCI class
mask to match any DISPLAY_CLASS device.

In such a configuration, the IGFX is not a primary VGA controller and
so should not take part in VGA arbitration, and the error return from
vga_client_register() is expected.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org

There are I915_NUM_RINGS-1 inter-ring synchronisation counters, but we
were clearing I915_NUM_RINGS of them. Oops.
Reported-by: NJiri Slaby <jirislaby@gmail.com>
Tested-by: NJiri Slaby <jirislaby@gmail.com>
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>

Fix new rapidio kernel-doc warnings:

  Warning(drivers/rapidio/rio-scan.c:953): No description found for parameter 'prev'
  Warning(drivers/rapidio/rio-scan.c:953): No description found for parameter 'prev_port'
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The probe function adds the MMC host which can start accepting request
immediately. There is an assumption here that no requests happen
immediatly, but it's not always the case. This assumption can causes
a BUG() when the clocks are disabled. The fix is to just remove the
clock disable in the probe function.
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

Remove parts of this driver which use internal API calls. This
replaces the calls as suggested by Russell King.

Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

The effect of changing the value of this symbol is gone since 042620a0
(RTC: Remove UIE emulation).

Remove symbol too.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: John Stultz <john.stultz@linaro.org>
LKML-Reference: <1295625406-15340-1-git-send-email-u.kleine-koenig@pengutronix.de>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

In reviewing cases where the virtualized interfaces didn't propagate
errors properly, I noticed rtc_read_alarm needed fixing. In doing
so I noticed my RTC rework dropped a memset and that the behavior
of rtc_read_alarm shouldn't be conditionalized on the alarm.enabled
flag (as the alarm may be set, but the irqs may be disabled). So
those were corrected as well.

CC: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>
LKML-Reference: <1295565973-14358-2-git-send-email-john.stultz@linaro.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

In cases where RTC hardware does not support alarms, the virtualized
RTC interfaces did not have a way to propagate the error up to userland.

This patch extends rtc_timer_enqueue so it catches errors from the hardware
and returns them upwards to the virtualized interfaces. To simplify error
handling, it also internalizes the management of the timer->enabled bit
into rtc_timer_enqueue and rtc_timer_remove.

Also makes rtc_timer_enqueue and rtc_timer_remove static.
Reported-by: NDavid Daney <ddaney@caviumnetworks.com>
Reported-by: NAndreas Schwab <schwab@linux-m68k.org>
Reported-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Diagnosed-by: NDavid Daney <ddaney@caviumnetworks.com>
Tested-by: NDavid Daney <ddaney@caviumnetworks.com>
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>
LKML-Reference: <1295565973-14358-1-git-send-email-john.stultz@linaro.org>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>