pandora-kernel.git
13 years agoMerge fixes fixes-hwmod fixes-non-critical fixes-non-critical-part2 hwmod hwmod-part2...
Tony Lindgren [Tue, 20 Dec 2011 00:50:28 +0000 (16:50 -0800)]
Merge fixes fixes-hwmod fixes-non-critical fixes-non-critical-part2 hwmod hwmod-part2 tmp-merge hsmmc musb ehci i2c testing-board testing-misc cbus

Merge branches 'fixes', 'fixes-hwmod', 'fixes-non-critical', 'fixes-non-critical-part2', 'hwmod', 'hwmod-part2', 'tmp-merge', 'hsmmc', 'musb', 'ehci', 'i2c', 'testing-board', 'testing-misc' and 'cbus' into tmp-rebuild-1324342225

13 years agoMerge branch 'linus' into tmp-merge
Tony Lindgren [Tue, 20 Dec 2011 00:50:13 +0000 (16:50 -0800)]
Merge branch 'linus' into tmp-merge

Conflicts:
arch/arm/kernel/setup.c

13 years agoMerge branches 'cleanup', 'dt', 'omap1', 'uart', 'soc-part2', 'board' and 'musb'...
Tony Lindgren [Tue, 20 Dec 2011 00:49:05 +0000 (16:49 -0800)]
Merge branches 'cleanup', 'dt', 'omap1', 'uart', 'soc-part2', 'board' and 'musb' into tmp-merge

13 years agoI2C: OMAP: fix FIFO usage for OMAP4
Shubhrajyoti D [Tue, 20 Dec 2011 00:17:55 +0000 (16:17 -0800)]
I2C: OMAP: fix FIFO usage for OMAP4

Currently the fifo depth is set to zero for OMAP4 which disables
the FIFO usage. This patch enables the FIFO usage for I2C transactions
on OMAP4 also.

Tested on omap4430 and 3430.

Tested-and-Reported-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
13 years agoARM: OMAP2+ i2c NACK without STP
Jan Weitzel [Tue, 20 Dec 2011 00:17:50 +0000 (16:17 -0800)]
ARM: OMAP2+ i2c NACK without STP

On OMAP4 OMAP_I2C_STAT_NACK is causing a timeout on the next access.
The isr cleans all flags in OMAP_I2C_CON_REG by setting OMAP_I2C_CON_STP
OMAP_I2C_CON_STP is also set in omap_i2c_xfer_msg on the last message.

According to the TI TSR the sequence for OMAP_I2C_STAT_NACK and
OMAP_I2C_STAT_AL are nearly the same.
Removing the OMAP_I2C_CON_STP part in the isr fix the problem.
Tested on OMAP4430 and OMAP3530 (here NACK was not a problem)
Fixes also booting on 2430sdp.

Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Acked-by: Tony Lindgren <tony@atomide.com>
13 years agocpufreq: OMAP: fixup for omap_device changes, include <linux/module.h>
Kevin Hilman [Tue, 20 Dec 2011 00:17:50 +0000 (16:17 -0800)]
cpufreq: OMAP: fixup for omap_device changes, include <linux/module.h>

Minor fixups to work starting with v3.2:
- use the new omap_device API for getting a device by name.
- need to include <linux/module.h>

Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: fix freq_table leak
Nishanth Menon [Tue, 20 Dec 2011 00:17:50 +0000 (16:17 -0800)]
cpufreq: OMAP: fix freq_table leak

We use a single frequency table for multiple CPUs. But, with
OMAP4, since we have multiple CPUs, the cpu_init call for CPU1
causes freq_table previously allocated for CPU0 to be overwritten.
In addition, we dont free the table on exit path.

We solve this by maintaining an atomic type counter to ensure
just a single table exists at a given time.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: put clk if cpu_init failed
Nishanth Menon [Tue, 20 Dec 2011 00:17:49 +0000 (16:17 -0800)]
cpufreq: OMAP: put clk if cpu_init failed

Release the mpu_clk in fail paths.

Reported-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: only supports OPP library
Nishanth Menon [Tue, 20 Dec 2011 00:17:49 +0000 (16:17 -0800)]
cpufreq: OMAP: only supports OPP library

OMAP2 is the only family using clk_[init|exit]_cpufreq_table, however,
the cpufreq code does not currently use clk_init_cpufreq_table. As a
result, it is unusuable for OMAP2 and only usable only on platforms
using OPP library.

Remove the unbalanced clk_exit_cpufreq_table().  Any platforms where
OPPs are not availble will fail on init because a freq table will not
be properly initialized.

Signed-off-by: Nishanth Menon <nm@ti.com>
[khilman@ti.com: changelog edits, and graceful failure mode changes]
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: dont support !freq_table
Nishanth Menon [Tue, 20 Dec 2011 00:17:49 +0000 (16:17 -0800)]
cpufreq: OMAP: dont support !freq_table

OMAP2+ all have frequency tables, hence the hacks we had for older
silicon do not need to be carried forward. As part of this change,
use cpufreq_frequency_table_target to find the best match for
frequency requested.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: deny initialization if no mpudev
Nishanth Menon [Tue, 20 Dec 2011 00:17:48 +0000 (16:17 -0800)]
cpufreq: OMAP: deny initialization if no mpudev

if we do not have mpu_dev we normally fail in cpu_init. It is better
to fail driver registration if the devices are not available.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: move clk name decision to init
Nishanth Menon [Tue, 20 Dec 2011 00:17:48 +0000 (16:17 -0800)]
cpufreq: OMAP: move clk name decision to init

Clk name does'nt need to dynamically detected during clk init.
move them off to driver initialization, if we dont have a clk name,
there is no point in registering the driver anyways. The actual clk
get and put is left at cpu_init and exit functions.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: notify even with bad boot frequency
Colin Cross [Tue, 20 Dec 2011 00:17:47 +0000 (16:17 -0800)]
cpufreq: OMAP: notify even with bad boot frequency

Sometimes, bootloaders starts up with a frequency which is not
in the OPP table. At cpu_init, policy->cur contains the frequency
we pick at boot.  It is possible that system might have fixed
it's boot frequency later on as part of power initialization.
After this condition, the first call to omap_target results in the
following:

omap_getspeed(actual device frequency) != policy->cur(frequency that
cpufreq thinks that the system is at), and it is possible that
freqs.old == freqs.new (because the governor requested a scale down).

We exit without triggering the notifiers in the current code, which
does'nt let code which depends on cpufreq_notify_transition to have
accurate information as to what the system frequency is.

Instead, we do a normal transition if policy->cur is wrong, then,
freqs.old will be the actual cpu frequency, freqs.new will be the
actual new cpu frequency and all required notifiers have the accurate
information.

Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Colin Cross <ccross@google.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: Enable all CPUs in shared policy mask
Todd Poynor [Tue, 20 Dec 2011 00:17:47 +0000 (16:17 -0800)]
cpufreq: OMAP: Enable all CPUs in shared policy mask

Enable all CPUs in the shared policy in the CPU init callback.
Otherwise, the governor CPUFREQ_GOV_START event is invoked with
a policy that only includes the first CPU, leaving other CPUs
uninitialized by the governor.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: Add SMP support for OMAP4+
Russell King [Tue, 20 Dec 2011 00:17:47 +0000 (16:17 -0800)]
cpufreq: OMAP: Add SMP support for OMAP4+

On OMAP SMP configuartion, both processors share the voltage
and clock. So both CPUs needs to be scaled together and hence
needs software co-ordination.

Also, update lpj with reference value to avoid progressive error.

Adjust _both_ the per-cpu loops_per_jiffy and global lpj. Calibrate
them with with reference to the initial values to avoid a
progressively bigger and bigger error in the value over time.

While at this, re-use the notifiers for UP/SMP since on UP machine or
UP_ON_SMP policy->cpus mask would contain only the boot CPU.

Based on initial SMP support by Santosh Shilimkar.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[khilman@ti.com: due to overlap/rework, combined original Santosh patch
                 and Russell's rework]
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agocpufreq: OMAP: cleanup for multi-SoC support, move into drivers/cpufreq
Santosh Shilimkar [Tue, 20 Dec 2011 00:17:46 +0000 (16:17 -0800)]
cpufreq: OMAP: cleanup for multi-SoC support, move into drivers/cpufreq

Move OMAP cpufreq driver from arch/arm/mach-omap2 into
drivers/cpufreq, along with a few cleanups:

- generalize support for better handling of different SoCs in the OMAP
- use OPP layer instead of OMAP clock internals for frequency table init

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[khilman@ti.com: move to drivers]
Signed-off-by: Kevin Hilman <khilman@ti.com>
13 years agoMerge branch 'hwmod_data_b_devel_3.3' of git://git.pwsan.com/linux-2.6 into hwmod...
Tony Lindgren [Tue, 20 Dec 2011 00:16:20 +0000 (16:16 -0800)]
Merge branch 'hwmod_data_b_devel_3.3' of git://git.pwsan.com/linux-2.6 into hwmod-part2

13 years agoARM: OMAP2+: split omap2/3/4_check_revision function
Vaibhav Hiremath [Mon, 19 Dec 2011 10:20:15 +0000 (15:50 +0530)]
ARM: OMAP2+: split omap2/3/4_check_revision function

We need to detect the SoC revision early, but the SoC
feature detection can be done later on. In order to allow
further clean-up later on, this patch separates the SoC
revision check from the SoC feature check.

This patch doesn't change functionality or behavior of the code
execution; it barely cleans up the code and splits into SoC
specific implementation for Rev ID and feature detection.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoARM: OMAP2+: Make cpu_rev static global variable
Vaibhav Hiremath [Mon, 19 Dec 2011 10:20:14 +0000 (15:50 +0530)]
ARM: OMAP2+: Make cpu_rev static global variable

As part of omap revision code cleanup, make cpu_rev
variable static global to the file (id.c). This is
needed so we can split the SoC detection from SoC
feature detection in the following patch. Also move
omap3_cpuinfo function a bit as that will be shared
by other omap3 like SoCs.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoARM: OMAP4: hwmod data: Add names for DMIC memory address space
Peter Ujfalusi [Mon, 28 Nov 2011 13:45:39 +0000 (15:45 +0200)]
ARM: OMAP4: hwmod data: Add names for DMIC memory address space

To be able to get the memory resources by name from
the DMIC driver (for MPU and for DMA).

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Benoît Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP3+: hwmod data: Add the default clockactivity for I2C
Shubhrajyoti D [Tue, 13 Dec 2011 10:55:54 +0000 (16:25 +0530)]
ARM: OMAP3+: hwmod data: Add the default clockactivity for I2C

For I2C clockactivity field is added for OMAP3 and OMAP4 that defines how the
interface (OCP) and functional (system) clocks behave when the I2C module is
idle.

The configuration of the clock activity bit field (per TRM) is as follows:
0x0: Both clocks can be cut off
0x1: Only OCP clock must be kept active; system clock
     can be cut off
0x3: Both clocks must be kept active
0x2: Only system clock must be kept active; OCP clock
     can be cut off

The patch makes 0x2(CLOCKACT_TEST_ICLK) the default for OMAP3 and OMAP4.

Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP4: hwmod data: introduce fdif(face detect module) hwmod
Ming Lei [Mon, 19 Dec 2011 21:34:06 +0000 (14:34 -0700)]
ARM: OMAP4: hwmod data: introduce fdif(face detect module) hwmod

Add hwmod data for the OMAP4 FDIF IP block.

Signed-off-by: Ming Lei <ming.lei@canonical.com>
Acked-by: Benoît Cousson <b-cousson@ti.com>
[paul@pwsan.com: rearranged to match script output; fixed FDIF end address to
 match script data; wrote trivial changelog]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP1: Fix pm_idle during suspend
Tony Lindgren [Mon, 19 Dec 2011 17:11:11 +0000 (09:11 -0800)]
ARM: OMAP1: Fix pm_idle during suspend

Commit 9ccdac3662dbf3c75e8f8851a214bdf7d365a4bd ([ARM] idle:
clean up pm_idle calling, obey hlt_counter) removed a check
for NULL pm_idle.

On omap1 the system hits an equivalent of suspend during idle.
If we are suspending, we need to make sure so we don't call
omap1_pm_idle during the suspend process.

Fix this by setting the pm_idle function to a an empty
function while suspending.

Reported-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoLinux 3.2-rc6 v3.2-rc6
Linus Torvalds [Sat, 17 Dec 2011 02:36:26 +0000 (18:36 -0800)]
Linux 3.2-rc6

13 years agoARM: OMAP2+: kconfig: Enable devicetree by default for OMAP2+ systems
Benoit Cousson [Thu, 1 Dec 2011 09:21:16 +0000 (10:21 +0100)]
ARM: OMAP2+: kconfig: Enable devicetree by default for OMAP2+ systems

devicetree will become the mandatory boot method for OMAP2+.
In order to avoid cluttering the OMAP code with #ifdef CONFIG_OF,
select USE_OF by default for every OMAP2+ systems.

Enable PROC_DEVICETREE as well.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoMerge branch 'i2c_reset_devel_3.3' of git://git.pwsan.com/linux-2.6 into i2c
Tony Lindgren [Sat, 17 Dec 2011 00:13:34 +0000 (16:13 -0800)]
Merge branch 'i2c_reset_devel_3.3' of git://git.pwsan.com/linux-2.6 into i2c

13 years agoMerge branch 'usbhost_runtime_pm_14_devel_3.3' of git://git.pwsan.com/linux-2.6 into...
Tony Lindgren [Sat, 17 Dec 2011 00:11:03 +0000 (16:11 -0800)]
Merge branch 'usbhost_runtime_pm_14_devel_3.3' of git://git.pwsan.com/linux-2.6 into ehci

13 years agoMerge branch 'hwmod_data_devel_3.3' of git://git.pwsan.com/linux-2.6 into hwmod
Tony Lindgren [Sat, 17 Dec 2011 00:10:22 +0000 (16:10 -0800)]
Merge branch 'hwmod_data_devel_3.3' of git://git.pwsan.com/linux-2.6 into hwmod

13 years agoARM: OMAP4: clock: Add CPU local timer clock node
Santosh Shilimkar [Sat, 17 Dec 2011 00:09:12 +0000 (16:09 -0800)]
ARM: OMAP4: clock: Add CPU local timer clock node

Local timer clock is sourced from the CPU clock and hence changes
along with CPU clock. These per CPU local timers are used as
clock-events, so they need to be reconfigured on CPU frequency
change as part of CPUfreq governor.

Newly introduced clockevents_reconfigure() needs to know the
twd clock-rate. Provide a clock-node to make clk_get_rate() work
for TWD.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@ti.com>
[paul@pwsan.com: renamed clock node to 'mpu_periphclk' to indicate that this
 is the Cortex-A9 MPCore subsystem clock PERIPHCLK (DDI 0407G); moved
 clock and clkdev entries to match the autogenerated script output]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoARM: OMAP4: hwmod: Don't wait for the idle status if modulemode is not supported
Benoit Cousson [Sat, 17 Dec 2011 00:09:11 +0000 (16:09 -0800)]
ARM: OMAP4: hwmod: Don't wait for the idle status if modulemode is not supported

If the module does not have any modulemode, the _disable_module function
will do nothing. There is then no point waiting for a idle status change.

It will remove the following warnings.

[    0.331848] omap_hwmod: dmm: _wait_target_disable failed
[    0.339935] omap_hwmod: emif_fw: _wait_target_disable failed
[    0.348358] omap_hwmod: l3_main_1: _wait_target_disable failed
[    0.356964] omap_hwmod: l3_main_2: _wait_target_disable failed
[    0.365600] omap_hwmod: l4_abe: _wait_target_disable failed
[    0.373931] omap_hwmod: l4_cfg: _wait_target_disable failed
[    0.382263] omap_hwmod: l4_per: _wait_target_disable failed
[    0.391113] omap_hwmod: l4_wkup: _wait_target_disable failed
[    0.399536] omap_hwmod: dma_system: _wait_target_disable failed
[    0.408325] omap_hwmod: dss_core: _wait_target_disable failed
[    0.416839] omap_hwmod: dss_dispc: _wait_target_disable failed
[    0.425445] omap_hwmod: dss_dsi1: _wait_target_disable failed
[    0.433990] omap_hwmod: dss_dsi2: _wait_target_disable failed
[    0.442504] omap_hwmod: dss_hdmi: _wait_target_disable failed
[    0.451019] omap_hwmod: dss_rfbi: _wait_target_disable failed
[    0.459564] omap_hwmod: dss_venc: _wait_target_disable failed
[    0.489471] omap_hwmod: mailbox: _wait_target_disable failed
[    0.505920] omap_hwmod: spinlock: _wait_target_disable failed

Note: For such module, the state is managed automatically by HW according
to clock domain transition. It is then not possible to wait for idle even
later in the _idle function since the status will change at clock domain
boundary.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: renamed fns to indicate that they are OMAP4-only; moved
 _wait_target_disable() into _disable_module(), removing duplicate code]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoARM: OMAP: AM3517/3505: fix crash on boot due to incorrect voltagedomain data
Paul Walmsley [Sat, 17 Dec 2011 00:09:11 +0000 (16:09 -0800)]
ARM: OMAP: AM3517/3505: fix crash on boot due to incorrect voltagedomain data

AM3517/3505 chips don't have voltage controller and voltage processor
IP blocks.  Trying to use OMAP34xx/36xx voltage domain data on these
chips causes a crash during boot:

  omap_vc_init_channel: PMIC info requried to configure vc forvdd_core not populated.Hence cannot initialize vc
  Unable to handle kernel NULL pointer dereference at virtual address 00000025
  pgd = c0004000
  [00000025] *pgd=00000000
  Internal error: Oops: 5 [#1] SMP
  Modules linked in:
  CPU: 0    Tainted: G        W     (3.2.0-rc5-00006-g402ecf4 #304)
  PC is at omap_vp_init+0x5c/0x14c
  LR is at omap_vp_init+0x54/0x14c

Fix this by using very minimal voltage domain definitions for AM3517/3505.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoMerge branch 'hwmod_data_fixes_3.2rc' of git://git.pwsan.com/linux-2.6 into fixes...
Tony Lindgren [Sat, 17 Dec 2011 00:05:02 +0000 (16:05 -0800)]
Merge branch 'hwmod_data_fixes_3.2rc' of git://git.pwsan.com/linux-2.6 into fixes-hwmod

13 years agoARM: omap: pass minimal SoC/board data for UART from dt
Rajendra Nayak [Wed, 14 Dec 2011 11:55:46 +0000 (17:25 +0530)]
ARM: omap: pass minimal SoC/board data for UART from dt

Pass minimal data needed for console boot, from dt, for
OMAP4 panda/sdp and OMAP3 beagle boards, and get rid of the
static initialization from generic board file.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoarm/dts: Add minimal device tree support for omap2420 and omap2430
Tony Lindgren [Fri, 16 Dec 2011 22:13:09 +0000 (14:13 -0800)]
arm/dts: Add minimal device tree support for omap2420 and omap2430

Add minimal device tree support for omap2420 and omap2430.

This is needed to keep the uart functional on omap2 after
omap_serial_init is removed from board-generic.c.

Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoomap-serial: Add minimal device tree support
Rajendra Nayak [Wed, 14 Dec 2011 11:55:45 +0000 (17:25 +0530)]
omap-serial: Add minimal device tree support

Adapt the driver to device tree and pass minimal platform
data from device tree needed for console boot.
No power management features will be suppported for now
since it requires more tweaks around OCP settings
to toggle forceidle/noidle/smartidle bits and handling
remote wakeup and dynamic muxing.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoomap-serial: Use default clock speed (48Mhz) if not specified
Rajendra Nayak [Wed, 14 Dec 2011 11:55:44 +0000 (17:25 +0530)]
omap-serial: Use default clock speed (48Mhz) if not specified

Use a default clock speed of 48Mhz, instead of ending up with 0,
if platforms fail to specify a valid clock speed.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoomap-serial: Get rid of all pdev->id usage
Rajendra Nayak [Wed, 14 Dec 2011 11:55:43 +0000 (17:25 +0530)]
omap-serial: Get rid of all pdev->id usage

With Device tree, pdev->id would no longer be Valid.
Hence get rid of all instances of its usage in the
driver. Device tree support for the driver is added
in subsequent patches.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoARM:OMAP4 add Phytec phyCORE-OMAP4 board
Jan Weitzel [Fri, 16 Dec 2011 22:01:51 +0000 (14:01 -0800)]
ARM:OMAP4 add Phytec phyCORE-OMAP4 board

This adds support for the Phytec OMAP4430 board called phyCORE-OMAP4 PCM049.

Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
[tony@atomide.com: updated for timer and twl cleanup, and to select the board by default]
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoInitial B&N Nook Color (encore) support
Oleg Drokin [Fri, 16 Dec 2011 22:01:51 +0000 (14:01 -0800)]
Initial B&N Nook Color (encore) support

Bare-bones board file, comes with serial console, gpio keys,
MMC/SDCard and USB (peripheral) support.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
[tony@atomide.com: updated for irq and timer cleanup and to select the board by default]
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoMerge branch 'for_3.3/uart/runtime-pm' of git://git.kernel.org/pub/scm/linux/kernel...
Tony Lindgren [Fri, 16 Dec 2011 22:01:03 +0000 (14:01 -0800)]
Merge branch 'for_3.3/uart/runtime-pm' of git://git./linux/kernel/git/khilman/linux-omap-pm into uart

Conflicts:
arch/arm/mach-omap2/pm34xx.c

13 years agoMerge branch 'tk_prm_chain_handler_devel_3.3' of git://git.pwsan.com/linux-2.6 into...
Tony Lindgren [Fri, 16 Dec 2011 22:00:23 +0000 (14:00 -0800)]
Merge branch 'tk_prm_chain_handler_devel_3.3' of git://git.pwsan.com/linux-2.6 into prcm

Conflicts:
arch/arm/mach-omap2/Makefile

13 years agoARM: OMAP2+: hwmod: Add a new flag to handle hwmods left enabled at init
Rajendra Nayak [Fri, 16 Dec 2011 12:50:12 +0000 (05:50 -0700)]
ARM: OMAP2+: hwmod: Add a new flag to handle hwmods left enabled at init

An hwmod with a 'HWMOD_INIT_NO_IDLE' flag set, is left in
enabled state by the hwmod framework post the initial setup.
Once a real user of the device (a driver) tries to enable it
at a later point, the hwmod framework throws a WARN() about
the device being already in enabled state.

Fix this by introducing a new internal flag '_HWMOD_SKIP_ENABLE' to
identify such devices/hwmods. When the device/hwmod is requested to be
enabled (the first time) by its driver/user, nothing except the
mux-enable is needed. The mux data is board specific and is
unavailable during initial enable() of the device, done by the
framework as part of setup().

A good example of a such a device is an UART used as debug console.
The UART module needs to be kept enabled through the boot, until the
UART driver takes control of it, for debug prints to appear on
the console.

Acked-by: Kevin Hilman <khilman@ti.com>
Acked-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: use a flag rather than a state; updated commit message;
 edited some documentation]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoARM: OMAP4: PRM: use PRCM interrupt handler
Tero Kristo [Fri, 16 Dec 2011 21:37:00 +0000 (14:37 -0700)]
ARM: OMAP4: PRM: use PRCM interrupt handler

Use the new PRCM interrupt handler code on OMAP4 systems.

The OMAP code will need to be converted to use sparse IRQs for this
to work.  Until that time, the following message will appear on boot:

PRCM: failed to allocate irq descs: -12

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
[paul@pwsan.com: split this from a previous patch to this patch; call
 omap4xxx_prcm_init() during init; write trivial commit log]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP3: pm: use prcm chain handler
Tero Kristo [Fri, 16 Dec 2011 21:36:59 +0000 (14:36 -0700)]
ARM: OMAP3: pm: use prcm chain handler

PM interrupt handling is now done through the PRCM chain handler. The
interrupt handling logic is also split in two parts, to serve IO and
WKUP events separately. This allows us to handle IO chain events in a
clean way.

Core event code is also changed in accordance to this, as PRCM
interrupt handling is done by independent handlers, and the core
handler should not clear the IO events anymore.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
[paul@pwsan.com: use pr_err(); combined with portions of earlier patches and
 the "do not enable PRCM MPU interrupts manually" patch]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP: hwmod: add support for selecting mpu_irq for each wakeup pad
Tero Kristo [Fri, 16 Dec 2011 21:36:59 +0000 (14:36 -0700)]
ARM: OMAP: hwmod: add support for selecting mpu_irq for each wakeup pad

By default all registered pads will trigger mpu_irqs[0]. Now there is
an API for selecting used mpu_irq on pad basis, which can be used to
trigger different irq handlers for different pads in the same hwmod.
Each pad that requires its interrupt to be re-routed this way must
have a separate call to omap_hwmod_pad_route_irq(hwmod, pad, irq).

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
[paul@pwsan.com: moved fn to omap_hwmod.c; separated fn from mux scan_wakeups
 changes; added kerneldoc]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP2+: mux: add support for PAD wakeup interrupts
Tero Kristo [Fri, 16 Dec 2011 21:36:59 +0000 (14:36 -0700)]
ARM: OMAP2+: mux: add support for PAD wakeup interrupts

OMAP mux now parses active wakeup events from pad registers and calls
corresponding hwmod ISRs once a wakeup is detected. This is
accomplished by registering an interrupt handler for PRCM IO event,
which is raised every time the HW detects wakeups.

[paul@pwsan.com: This patch is a merge of Govindraj R's "ARM: OMAP2+:
hwmod: Add API to check IO PAD wakeup status" patch, Tero Kristo's
"ARM: OMAP2+: mux: add support for PAD wakeup interrupts" patch, and
part of Tero's "ARM: OMAP: mux: add support for selecting mpu_irq for
each wakeup pad" patch.]

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: Govindraj.R <govindraj.raja@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
[paul@pwsan.com: reduced indentation level; renamed omap_hwmod function;
 improved function documentation; modified to iterate only through dynamic
 pads; modified to skip pads where idle mode doesn't enable wakeups; split
 patches]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP: PRCM: add suspend prepare / finish support
Tero Kristo [Fri, 16 Dec 2011 21:36:58 +0000 (14:36 -0700)]
ARM: OMAP: PRCM: add suspend prepare / finish support

PRCM chain handler needs to disable forwarding of interrupts during
suspend, because runtime PM is disabled and most of the drivers
are potentially not able to handle interrupts coming at this time.

This patch masks all the PRCM interrupt events if a PRCM interrupt
occurs during suspend, but does not ack them. Once suspend finish
is called, all the masked events will be re-enabled, which causes
immediate PRCM interrupt and handles the postponed event.

The suspend prepare and complete  callbacks will be called from
pm34xx.c / pm44xx.c files in the following patches.

The functions defined in this patch should eventually be moved to
suspend->prepare and suspend->finish driver hooks, once the PRCM
chain handler will be made as its own driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
[paul@pwsan.com: add kerneldoc, add omap_prcm_irq_setup.saved_mask, add fn
 ptrs for save_and_clear_irqen() and restore_irqen()]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP: PRCM: add support for chain interrupt handler
Tero Kristo [Fri, 16 Dec 2011 21:36:58 +0000 (14:36 -0700)]
ARM: OMAP: PRCM: add support for chain interrupt handler

Introduce a chained interrupt handler mechanism for the PRCM
interrupt, so that individual PRCM event can cleanly be handled by
handlers in separate drivers. We do this by introducing PRCM event
names, which are then matched to the particular PRCM interrupt bit
depending on the specific OMAP SoC being used.

PRCM interrupts have two priority levels, high or normal. High priority
is needed for IO event handling, so that we can be sure that IO events
are processed before other events. This reduces latency for IO event
customers and also prevents incorrect ack sequence on OMAP3.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Avinash.H.M <avinashhm@ti.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Govindraj.R <govindraj.raja@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
[paul@pwsan.com: drop some dead code; use SoC-specific pending IRQ
 detection; move code to prm_common.c; add lots of documentation;
 remove saved_mask; add OCP barrier on ISR exit; improved error
 handling; split out per-SoC initialization to a separate patch]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP3/4: PRM: add functions to read pending IRQs, PRM barrier
Paul Walmsley [Fri, 16 Dec 2011 21:36:58 +0000 (14:36 -0700)]
ARM: OMAP3/4: PRM: add functions to read pending IRQs, PRM barrier

Add PRM functions to test for pending PRM IRQs.  This will be used in
a subsequent patch to implement the PRM interrupt handler on the MPU.

Add PRM functions to ensure that all outstanding writes from the MPU
to the PRM IP block have completed before continuing execution.  This
will be used in a subsequent patch to ensure that all PRM interrupt
status bits are cleared in the hardware before exiting the ISR.
Normally we would not expose such a low-level function to other code.
But the current implementation of the PRM interrupt code, which uses
the generic IRQ chip code, doesn't give us a choice.

The pending PRM IRQ functions are based on code originally written by
Tero Kristo <t-kristo@ti.com>.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <t-kristo@ti.com>
13 years agoARM: OMAP2+: hwmod: Add API to enable IO ring wakeup
Govindraj R [Fri, 16 Dec 2011 21:36:58 +0000 (14:36 -0700)]
ARM: OMAP2+: hwmod: Add API to enable IO ring wakeup

Add API to enable IO pad wakeup capability based on mux pad and
wake_up enable flag available from hwmod_mux initialization.

Use the wakeup_enable flag and enable wakeup capability for the given
pads. Wakeup capability will be enabled/disabled during hwmod idle
transition based on whether wakeup_flag is set or cleared.  If the
hwmod is currently idled, and any mux values were changed by
_set_idle_ioring_wakeup(), the SCM PADCTRL registers will be updated.

Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
[paul@pwsan.com: rearranged code to limit indentation; cleaned up
 function documentation; removed unused non-static functions; modified
 to search all hwmod pads, not just dynamic remuxing ones; modified to
 update SCM regs if hwmod is currently idle and any pads have changed]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP2+: mux: add wakeup-capable hwmod mux entries to dynamic list
Paul Walmsley [Fri, 16 Dec 2011 21:36:57 +0000 (14:36 -0700)]
ARM: OMAP2+: mux: add wakeup-capable hwmod mux entries to dynamic list

omap_hwmod_mux() currently only iterates through the dynamic pad list.
This list currently only consists of pads with the
OMAP_DEVICE_MUX_REMUX flag set.

Subsequent patches in this series will cause hwmod mux entries with
the OMAP_DEVICE_MUX_WAKEUP flag set to be changed dynamically, to
control hwmod I/O ring wakeup.  For this to work correctly, hwmod mux
entries with the OMAP_DEVICE_MUX_WAKEUP flag set must also be added to
the dynamic pad list.  So this patch modifies omap_hwmod_mux_init() to
do so.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Govindraj R <govindraj.raja@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
13 years agoRevert "drm/i915: fix infinite recursion on unbind due to ilk vt-d w/a"
Linus Torvalds [Fri, 16 Dec 2011 20:58:39 +0000 (12:58 -0800)]
Revert "drm/i915: fix infinite recursion on unbind due to ilk vt-d w/a"

This reverts commit eb1711bb94991e93669c5a1b5f84f11be2d51ea1.

It blows up the i915 seqno tracking, resulting in the

BUG_ON(seqno == 0);

in i915_wait_request() triggering, which will cause lock-ups.

See for example
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/903010
  https://lkml.org/lkml/2011/12/14/395

Reported-requested-and-tested-by: Dirk Hohndel <dirk@hohndel.org>
Reported-by: Richard Eames <Richard.Eames@flinders.edu.au>
Reported-by: Rocko Requin <rockorequin@hotmail.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Keith Packard <keithp@keithp.com>
Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Fri, 16 Dec 2011 20:26:26 +0000 (12:26 -0800)]
Merge git://git./linux/kernel/git/davem/sparc

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc32: Be less strict in matching %lo part of relocation.
  sbus: convert drivers/sbus/char/* to use module_platform_driver()
  bbc_i2c: Remove unneeded err variable
  sparc: Use kmemdup rather than duplicating its implementation

13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Fri, 16 Dec 2011 20:17:32 +0000 (12:17 -0800)]
Merge git://git./linux/kernel/git/davem/net

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  ipv6: Check dest prefix length on original route not copied one in rt6_alloc_cow().
  sch_gred: should not use GFP_KERNEL while holding a spinlock
  ipip, sit: copy parms.name after register_netdevice
  ipv6: Fix for adding multicast route for loopback device automatically.
  ssb: fix init regression with SoCs
  rtl8192{ce,cu,de,se}: avoid problems because of possible ERFOFF -> ERFSLEEP transition
  mac80211: fix another race in aggregation start
  fsl_pq_mdio: Clean up tbi address configuration
  ppp: fix pptp double release_sock in pptp_bind()
  net/fec: fix the use of pdev->id
  ath9k: fix check for antenna diversity support
  batman-adv: delete global entry in case of roaming
  batman-adv: in case of roaming mark the client with TT_CLIENT_ROAM
  Bluetooth: Correct version check in hci_setup
  btusb: fix a memory leak in btusb_send_frame()
  Bluetooth: bnep: Fix module reference
  Bluetooth: cmtp: Fix module reference
  Bluetooth: btmrvl: support Marvell Bluetooth device SD8797

13 years agoMerge branches 'for-linus' and 'for-linus-3.2' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Fri, 16 Dec 2011 20:15:50 +0000 (12:15 -0800)]
Merge branches 'for-linus' and 'for-linus-3.2' of git://git./linux/kernel/git/mason/linux-btrfs

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: unplug every once and a while
  Btrfs: deal with NULL srv_rsv in the delalloc inode reservation code
  Btrfs: only set cache_generation if we setup the block group
  Btrfs: don't panic if orphan item already exists
  Btrfs: fix leaked space in truncate
  Btrfs: fix how we do delalloc reservations and how we free reservations on error
  Btrfs: deal with enospc from dirtying inodes properly
  Btrfs: fix num_workers_starting bug and other bugs in async thread
  BTRFS: Establish i_ops before calling d_instantiate
  Btrfs: add a cond_resched() into the worker loop
  Btrfs: fix ctime update of on-disk inode
  btrfs: keep orphans for subvolume deletion
  Btrfs: fix inaccurate available space on raid0 profile
  Btrfs: fix wrong disk space information of the files
  Btrfs: fix wrong i_size when truncating a file to a larger size
  Btrfs: fix btrfs_end_bio to deal with write errors to a single mirror

* 'for-linus-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  btrfs: lower the dirty balance poll interval

13 years agoMerge branch 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux
Linus Torvalds [Fri, 16 Dec 2011 19:27:56 +0000 (11:27 -0800)]
Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux

* 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux:
  drm/i915/dp: Dither down to 6bpc if it makes the mode fit
  drm/i915: enable semaphores on per-device defaults
  drm/i915: don't set unpin_work if vblank_get fails
  drm/i915: By default, enable RC6 on IVB and SNB when reasonable
  iommu: Export intel_iommu_enabled to signal when iommu is in use
  drm/i915/sdvo: Include LVDS panels for the IS_DIGITAL check
  drm/i915: prevent division by zero when asking for chipset power
  drm/i915: add PCH info to i915_capabilities
  drm/i915: set the right SDVO transcoder for CPT
  drm/i915: no-lvds quirk for ASUS AT5NM10T-I
  drm/i915: Treat pre-gen4 backlight duty cycle value consistently
  drm/i915: Hook up Ivybridge eDP
  drm/i915: add multi-threaded forcewake support

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Fri, 16 Dec 2011 19:14:42 +0000 (11:14 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: HDA: Use LPIB Position fix for Intel SCH Poulsbo
  ALSA: hda: fix mute led polarity for HP laptops with buggy BIOS
  ALSA: HDA: Set position fix to LPIB for an Atom/Poulsbo based device
  ASoC: Fix hx4700 error handling to free gpios if snd_soc_register_card fails
  ASoC: WM8958: correctly show firmware magic on mismatch
  ASoC: mxs: Add appropriate MODULE_ALIAS()
  ASoC: mxs: Add missing MODULE_LICENSE("GPL")
  ASoC: Fix WM8996 24.576MHz clock operation
  ASoC: Include linux/module.h for smdk2443_wm9710
  ASoC: Fix a typo in jive_wm8750
  ASoC: Fix build dependency for SND_SOC_JZ4740_CODEC
  ASoC: Include linux/io.h for jz4740 codec

13 years agoMerge branch 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6
Linus Torvalds [Fri, 16 Dec 2011 19:13:49 +0000 (11:13 -0800)]
Merge branch 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6

* 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6:
  gpio: Fix DA9052 GPIO build errors.
  gpio: mpc8xxx: don't allow input-only pins to be output for MPC5121
  gpio-ml-ioh: Add the irq_disable/irq_enable hooks for ml-ioh irq chip
  gpio-ml-ioh: fix a bug in the interrupt handler
  gpio: pl061: drop extra check for NULL platform_data

13 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Linus Torvalds [Fri, 16 Dec 2011 18:07:50 +0000 (10:07 -0800)]
Merge branch 'fixes' of git://git./linux/kernel/git/arm/arm-soc

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: OMAP: rx51: fix USB
  ARM: OMAP: mcbsp: Fix possible memory corruption
  arm/imx: fix power button on imx51 babbage board
  ARM: imx: fix cpufreq build errors
  ARM: mx5: add __initconst for fec pdata
  MXC PWM: should active during DOZE/WAIT/DBG mode
  ARM: EXYNOS: Fix build error without CONFIG_LOCAL_TIMERS
  ARM: EXYNOS: Fix for stall in case of cpu hotplug or sleep
  ARM: S5PV210: Set 1000ns as PWM backlight period on SMDKV210
  ARM: SAMSUNG: remove duplicated header include

13 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 16 Dec 2011 18:05:14 +0000 (10:05 -0800)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block

* 'for-linus' of git://git.kernel.dk/linux-block:
  block: don't kick empty queue in blk_drain_queue()
  block/swim3: Locking fixes
  loop: Fix discard_alignment default setting
  cfq-iosched: fix cfq_cic_link() race confition
  cfq-iosched: free cic_index if blkio_alloc_blkg_stats fails
  cciss: fix flush cache transfer length
  cciss: Add IRQF_SHARED back in for the non-MSI(X) interrupt handler
  loop: fix loop block driver discard and encryption comment
  block: initialize request_queue's numa node during

13 years agobtrfs: lower the dirty balance poll interval
Wu Fengguang [Fri, 16 Dec 2011 17:32:57 +0000 (12:32 -0500)]
btrfs: lower the dirty balance poll interval

Tests show that the original large intervals can easily make the dirty
limit exceeded on 100 concurrent dd's. So adapt to as large as the
next check point selected by the dirty throttling algorithm.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agodrm/i915/dp: Dither down to 6bpc if it makes the mode fit
Adam Jackson [Tue, 13 Dec 2011 23:41:00 +0000 (15:41 -0800)]
drm/i915/dp: Dither down to 6bpc if it makes the mode fit

Some active adaptors (VGA usually) only have two lanes at 2.7GHz.
That's a maximum pixel clock of 144MHz at 8bpc, but 192MHz at 6bpc.

Fixes Asus UX31 panel being black at startup due to no valid modes since
dc22ee6fc18ce0f15424e753e8473c306ece95c1.

v2: Rebased to current code, resulting in the fix applying to EDP panels as
    well.  Also changed from spatio-temporal to just spatial dithering on
    pre-ironlake, to be conssitent (and less visual flicker)

Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Tested-by: Eric Anholt <eric@anholt.net>
Tested-by: Dirk Hohndel <hohndel@infradead.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
13 years agodrm/i915: enable semaphores on per-device defaults
Eugeni Dodonov [Sat, 10 Dec 2011 01:16:37 +0000 (17:16 -0800)]
drm/i915: enable semaphores on per-device defaults

This adds a default setting for semaphores parameter, and enables
semaphores by default on IVB.

For now, as semaphores interaction with VTd causes random issues on
SNB, we do not enable them by default. But they can still be enabled
via the semaphores=1 kernel parameter.

v2: enables semaphores on SNB when IO remapping is disabled, with base
on Keith Packard patch.

CC: Daniel Vetter <daniel.vetter@ffwll.ch>
CC: Ben Widawsky <ben@bwidawsk.net>
CC: Keith Packard <keithp@keithp.com>
CC: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: Chris Wilson <chris@chris-wilson.co.uk>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=42696
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=40564
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41353
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38862
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
13 years agodrm/i915: don't set unpin_work if vblank_get fails
Jesse Barnes [Mon, 29 Aug 2011 16:45:28 +0000 (09:45 -0700)]
drm/i915: don't set unpin_work if vblank_get fails

This fixes a race where we may try to finish a page flip and decrement
the refcount even if our vblank_get failed and we ended up with a
spurious flip pending interrupt.

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=34211.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
13 years agodrm/i915: By default, enable RC6 on IVB and SNB when reasonable
Keith Packard [Thu, 17 Nov 2011 06:24:52 +0000 (22:24 -0800)]
drm/i915: By default, enable RC6 on IVB and SNB when reasonable

RC6 should always work on IVB, and should work on SNB whenever IO
remapping is disabled. RC6 never works on Ironlake. Make the default
value for the parameter follow these guidelines. Setting the value
to either 0 or 1 will force the specified behavior.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38567
Cc: Ted Phelps <phelps@gnusto.com>
Cc: Peter <pab1612@gmail.com>
Cc: Lukas Hejtmanek <xhejtman@fi.muni.cz>
Cc: Andrew Lutomirski <luto@mit.edu>
13 years agoiommu: Export intel_iommu_enabled to signal when iommu is in use
Eugeni Dodonov [Wed, 23 Nov 2011 18:42:14 +0000 (16:42 -0200)]
iommu: Export intel_iommu_enabled to signal when iommu is in use

In i915 driver, we do not enable either rc6 or semaphores on SNB when dmar
is enabled. The new 'intel_iommu_enabled' variable signals when the
iommu code is in operation.

Cc: Ted Phelps <phelps@gnusto.com>
Cc: Peter <pab1612@gmail.com>
Cc: Lukas Hejtmanek <xhejtman@fi.muni.cz>
Cc: Andrew Lutomirski <luto@mit.edu>
CC: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
13 years agodrm/i915/sdvo: Include LVDS panels for the IS_DIGITAL check
Chris Wilson [Mon, 20 Jun 2011 13:45:50 +0000 (14:45 +0100)]
drm/i915/sdvo: Include LVDS panels for the IS_DIGITAL check

We were checking whether the supplied edid matched the connector it was
read from. We do this in case a DDC read returns an EDID for another
device on a multifunction or otherwise interesting card. However, we
failed to include LVDS as a digital device and so rejecting an otherwise
valid EDID.

Fixes the detection of the secondary SDVO LVDS panel on the Libretto
W105.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=39216
Signed-off-by: Keith Packard <keithp@keithp.com>
13 years agodrm/i915: prevent division by zero when asking for chipset power
Eugeni Dodonov [Thu, 10 Nov 2011 15:55:15 +0000 (13:55 -0200)]
drm/i915: prevent division by zero when asking for chipset power

This prevents an in-kernel division by zero which happens when we are
asking for i915_chipset_val too quickly, or within a race condition
between the power monitoring thread and userspace accesses via debugfs.

The issue can be reproduced easily via the following command:
while ``; do cat /sys/kernel/debug/dri/0/i915_emon_status; done

This is particularly dangerous because it can be triggered by
a non-privileged user by just reading the debugfs entry.

This issue was also found independently by Konstantin Belousov
<kostikbel@gmail.com>, who proposed a similar patch.

Reported-by: Konstantin Belousov <kostikbel@gmail.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
13 years agodrm/i915: add PCH info to i915_capabilities
Paulo Zanoni [Fri, 14 Oct 2011 21:17:41 +0000 (18:17 -0300)]
drm/i915: add PCH info to i915_capabilities

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
13 years agodrm/i915: set the right SDVO transcoder for CPT
Paulo Zanoni [Fri, 14 Oct 2011 21:16:22 +0000 (18:16 -0300)]
drm/i915: set the right SDVO transcoder for CPT

v2: add a CPT-specific macro, make code cleaner
v3: fix commit message

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41272
Cc: stable@kernel.org
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Keith Packard <keithp@keithp.com>
13 years agodrm/i915: no-lvds quirk for ASUS AT5NM10T-I
Adam Jackson [Mon, 28 Nov 2011 17:22:56 +0000 (12:22 -0500)]
drm/i915: no-lvds quirk for ASUS AT5NM10T-I

https://bugzilla.redhat.com/show_bug.cgi?id=750006

Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
13 years agoMFD: OMAP: USB: Runtime PM support
Keshava Munegowda [Tue, 11 Oct 2011 07:53:29 +0000 (13:23 +0530)]
MFD: OMAP: USB: Runtime PM support

The usbhs core driver does not enable/disable the interface and
functional clocks directly, These clocks are handled by runtime pm,
hence instead of the clock enable/disable, the runtime pm APIS are
used. however,the optional clocks and port clocks are handled by
the usbhs core.

Dependency:
This patch is dependent on this series:
[PATCH 0/5 v13 or latest version] omap: usb: host: Runtime PM preparation
for EHCI and OHCI drivers.

Validation performed:
The global suspend/resume of EHCI and OHCI is validated on
OMAP3430 sdp board with this patch combined with the series:
[PATCH 0/5 v13 or latest version] omap: usb: host: Runtime PM preparation
for EHCI and OHCI drivers.

Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Reviewed-by: Partha Basak <parthab@india.ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP: USBHOST: Replace usbhs core driver APIs by Runtime pm APIs
Keshava Munegowda [Tue, 11 Oct 2011 07:52:11 +0000 (13:22 +0530)]
ARM: OMAP: USBHOST: Replace usbhs core driver APIs by Runtime pm APIs

The ehci and ohci drivers does not use the APIs of the usbhs
core driver; the runtime pm APIs are used for clock
enable/disable. Since usbhs is parent platform device of the
ehci and ohci devices, the runtime apis indirectly uses the
usb hs core device as input parameter to for clock functions.

Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Reviewed-by: Partha Basak <parthab@india.ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP: USB: device name change for the clk names of usbhs
Keshava Munegowda [Tue, 11 Oct 2011 07:51:51 +0000 (13:21 +0530)]
ARM: OMAP: USB: device name change for the clk names of usbhs

device name usbhs clocks are changed from
usbhs-omap.0 to usbhs_omap; this is because
in the hwmod registration the device name is set
as usbhs_omap; The redudant clock nodes are removed.

Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Reviewed-by: Partha Basak <parthab@india.ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP: USB: register hwmods of usbhs
Keshava Munegowda [Tue, 11 Oct 2011 07:51:37 +0000 (13:21 +0530)]
ARM: OMAP: USB: register hwmods of usbhs

The hwmod structure of usb_host_hs  and usb_tll are
retrieved and registered with omap device

Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Reviewed-by: Partha Basak <parthab@india.ti.com>
[paul@pwsan.com: this patch is merged with the understanding that the
 authors will send patches for the next merge window to remove the
 multiple hwmods-per-omap_device]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP: I2C: Reset support
Shubhrajyoti D [Tue, 13 Dec 2011 10:55:56 +0000 (16:25 +0530)]
ARM: OMAP: I2C: Reset support

Under some error conditions the i2c driver may do a reset.
Adding a reset field and support in the device-specific code to aid
error-recovery.

Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP: omap_device: add omap_device_reset to reset all the hwmods in the device
Shubhrajyoti D [Tue, 13 Dec 2011 10:55:55 +0000 (16:25 +0530)]
ARM: OMAP: omap_device: add omap_device_reset to reset all the hwmods in the device

Add a function omap_device_reset() to reset all the hwmods in the hwmod device.
This is intended to be used by device drivers to reset all the hwmods in the
device. This is needed to support some ips like i2c which  may have to do reset
in error paths or in errata.

Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP3+: hwmod data: Add the default clockactivity for I2C
Shubhrajyoti D [Tue, 13 Dec 2011 10:55:54 +0000 (16:25 +0530)]
ARM: OMAP3+: hwmod data: Add the default clockactivity for I2C

For I2C clockactivity field is added for OMAP3 and OMAP4 that defines how the
interface (OCP) and functional (system) clocks behave when the I2C module is
idle.

The configuration of the clock activity bit field (per TRM) is as follows:
0x0: Both clocks can be cut off
0x1: Only OCP clock must be kept active; system clock
     can be cut off
0x3: Both clocks must be kept active
0x2: Only system clock must be kept active; OCP clock
     can be cut off

The patch makes 0x2(CLOCKACT_TEST_ICLK) the default for OMAP3 and OMAP4.

Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP3: hwmod data: disable multiblock reads on MMC1/2 on OMAP34xx/35xx <= ES2.1
Paul Walmsley [Fri, 16 Dec 2011 06:30:44 +0000 (23:30 -0700)]
ARM: OMAP3: hwmod data: disable multiblock reads on MMC1/2 on OMAP34xx/35xx <= ES2.1

The HSMMC1/HSMMC2 host controllers on OMAP34xx and
OMAP3503/3515/3525/3530 chips at ES levels prior to 3.0 can't do multiple
block reads[1].  Mark the hwmod data appropriately.

Reported by Dave Hylands <dhylands@gmail.com> and Steve Sakoman
<sakoman@gmail.com>.  Thanks to Steve Sakoman for further help
testing this patch.

1. See for example Advisory 2.1.1.128 "MMC: Multiple Block Read
   Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_
   Revision F (October 2010) (SPRZ278F), available from
   http://focus.ti.com/lit/er/sprz278f/sprz278f.pdf

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Dave Hylands <dhylands@gmail.com>
Cc: Steve Sakoman <sakoman@gmail.com>
13 years agoARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP4
Benoit Cousson [Fri, 16 Dec 2011 06:15:18 +0000 (23:15 -0700)]
ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP4

Following 2 hwmod structures are added
1. usb_host_hs
     The hwmod of usbhs with uhh, ehci and ohci base addresses
     functional clock and ehci, ohci irqs

2. usb_tll_hs
      hwmod of usbhs with the TLL base address and irq.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
[keshava_mgowda@ti.com: rebased to kernel version 3.0, added workarounds for
 hardware issues]
Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Reviewed-by: Partha Basak <parthab@india.ti.com>
[paul@pwsan.com: fixed multi-line comments, fixed whitespace, fixed S-o-b
 notes, removed spurious TLL->L3 interface]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP3
Keshava Munegowda [Fri, 16 Dec 2011 06:14:44 +0000 (23:14 -0700)]
ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP3

Following 2 hwmod structures are added
    1. usb_host_hs
         The hwmod of usbhs with uhh, ehci and ohci base addresses
         functional clock and ehci, ohci irqs

    2. usb_tll_hs
          hwmod of usbhs with the TLL base address and irq.

Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Reviewed-by: Partha Basak <parthab@india.ti.com>
[paul@pwsan.com: fixed whitespace; removed nonexistent TLL->L3 interface;
 added master & slave for L4 CORE->TLL interface; skip registration on
 3430ES1; fixed multiline comment style; updated to apply on Tony's cleanup
 branch; rebased]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoMerge branch 'samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene...
Olof Johansson [Fri, 16 Dec 2011 07:34:17 +0000 (23:34 -0800)]
Merge branch 'samsung-fixes-3' of git://git./linux/kernel/git/kgene/linux-samsung into fixes

13 years agoARM: OMAP: hwmod data: Add support for AM35xx UART4/ttyO3
Kyle Manna [Tue, 18 Oct 2011 18:47:41 +0000 (13:47 -0500)]
ARM: OMAP: hwmod data: Add support for AM35xx UART4/ttyO3

Add hwmod support to enable access to UART4 of the AM35xx series of
chips.  The UART4 device referenced from the TRM will show up as ttyO3.

This was tested on an AM3505.

Signed-off-by: Kyle Manna <kyle.manna@fuel7.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP: hwmod data: fix the panic on Nokia RM-680 during boot
Aaro Koskinen [Fri, 16 Dec 2011 05:38:37 +0000 (22:38 -0700)]
ARM: OMAP: hwmod data: fix the panic on Nokia RM-680 during boot

Booting the Linux kernel on Nokia RM-680 board has been broken since
2.6.39 due to the following:

[    0.217193] omap_hwmod: timer12: enabling
[    0.221435] Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa304010
[    0.229431] Internal error: : 1028 [#1] SMP
[    0.233825] Modules linked in:
[    0.237060] CPU: 0    Not tainted  (3.2.0-rc4-dirty #46)
[    0.242645] PC is at _update_sysc_cache+0x2c/0x7c
[    0.247589] LR is at _enable+0x1b0/0x2d8
[    0.251708] pc : [<c0026108>]    lr : [<c0026df4>]    psr: 40000013
[    0.251708] sp : ef831f40  ip : ef82f380  fp : c06ac0c0
[    0.263702] r10: 00000000  r9 : c05dfb2c  r8 : ef830000
[    0.269165] r7 : c0027494  r6 : 00000000  r5 : 00000000  r4 : c06608b0
[    0.276000] r3 : fa304000  r2 : 00000010  r1 : c0661e28  r0 : c06608b0
[    0.282806] Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[    0.290405] Control: 10c5387d  Table: 80004019  DAC: 00000017
[    0.296417] Process swapper (pid: 1, stack limit = 0xef8302f8)
[    0.302520] Stack: (0xef831f40 to 0xef832000)
[    0.307098] 1f40: c06608b0 c0026df4 c06ad094 c0035120 00000001 c06608b0 00000000 c0027530
[    0.315612] 1f60: c0027604 ef830000 c05dfb2c c06608b0 c0642ac0 c0025bf0 c0621234 c062120c
[    0.324127] 1f80: c0621738 00000013 ef830000 c05dfb6c c0621234 c0008688 c062c880 c009eadc
[    0.332641] 1fa0: 0000005f 00000000 c0621738 35390013 00000000 00000000 00000000 0000019a
[    0.341156] 1fc0: c0681cf4 c0621234 c062120c c0621738 00000013 00000000 00000000 00000000
[    0.349670] 1fe0: 00000000 c05d5298 00000000 c05d5200 c0014fa8 c0014fa8 ffff0000 ffff0000
[    0.358184] [<c0026108>] (_update_sysc_cache+0x2c/0x7c) from [<c0026df4>] (_enable+0x1b0/0x2d8)
[    0.367248] [<c0026df4>] (_enable+0x1b0/0x2d8) from [<c0027530>] (_setup+0x9c/0x170)
[    0.375335] [<c0027530>] (_setup+0x9c/0x170) from [<c0025bf0>] (omap_hwmod_for_each+0x38/0x58)
[    0.384307] [<c0025bf0>] (omap_hwmod_for_each+0x38/0x58) from [<c05dfb6c>] (omap_hwmod_setup_all+0x40/0xa0)
[    0.394409] [<c05dfb6c>] (omap_hwmod_setup_all+0x40/0xa0) from [<c0008688>] (do_one_initcall+0x34/0x180)
[    0.404296] [<c0008688>] (do_one_initcall+0x34/0x180) from [<c05d5298>] (kernel_init+0x98/0x144)
[    0.413452] [<c05d5298>] (kernel_init+0x98/0x144) from [<c0014fa8>] (kernel_thread_exit+0x0/0x8)
[    0.422576] Code: e3130c01 1590304c 0590304c 119320b2 (07932002)
[    0.429046] ---[ end trace 1b75b31a2719ed1c ]---
[    0.433959] Kernel panic - not syncing: Attempted to kill init!

Timer 12 is not necessarily available on non-GP devices (see e.g.
http://marc.info/?l=linux-omap&m=129433066521102&w=2), so it should be
registered only on GP OMAPs. With this change it's again possible to
boot RM-680 into the shell. Tested with 3.2-rc4.

Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
[paul@pwsan.com: changed subject line]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoARM: OMAP: hwmod data: fix iva and mailbox hwmods for OMAP 3
Felipe Contreras [Fri, 16 Dec 2011 05:38:36 +0000 (22:38 -0700)]
ARM: OMAP: hwmod data: fix iva and mailbox hwmods for OMAP 3

Seems the commit 7e89098 was overly aggressive in adding iva and mailbox
hwmods so now they are registered twice.

------------[ cut here ]------------
WARNING: at arch/arm/mach-omap2/omap_hwmod.c:1959 omap_hwmod_register+0x104/0x12c()
omap_hwmod: iva: _register returned -22
Modules linked in:
[<c0012aa4>] (unwind_backtrace+0x0/0xec) from [<c002f970>] (warn_slowpath_common+0x4c/0x64)
[<c002f970>] (warn_slowpath_common+0x4c/0x64) from [<c002fa08>] (warn_slowpath_fmt+0x2c/0x3c)
[<c002fa08>] (warn_slowpath_fmt+0x2c/0x3c) from [<c02fdb4c>] (omap_hwmod_register+0x104/0x12c)
[<c02fdb4c>] (omap_hwmod_register+0x104/0x12c) from [<c02fbb44>] (omap3_init_early+0x1c/0x28)
[<c02fbb44>] (omap3_init_early+0x1c/0x28) from [<c02f9580>] (setup_arch+0x6b8/0x7a4)
[<c02f9580>] (setup_arch+0x6b8/0x7a4) from [<c02f754c>] (start_kernel+0x6c/0x264)
[<c02f754c>] (start_kernel+0x6c/0x264) from [<80008040>] (0x80008040)
---[ end trace 1b75b31a2719ed1c ]---
------------[ cut here ]------------
WARNING: at arch/arm/mach-omap2/omap_hwmod.c:1959 omap_hwmod_register+0x104/0x12c()
omap_hwmod: mailbox: _register returned -22
Modules linked in:
[<c0012aa4>] (unwind_backtrace+0x0/0xec) from [<c002f970>] (warn_slowpath_common+0x4c/0x64)
[<c002f970>] (warn_slowpath_common+0x4c/0x64) from [<c002fa08>] (warn_slowpath_fmt+0x2c/0x3c)
[<c002fa08>] (warn_slowpath_fmt+0x2c/0x3c) from [<c02fdb4c>] (omap_hwmod_register+0x104/0x12c)
[<c02fdb4c>] (omap_hwmod_register+0x104/0x12c) from [<c02fbb44>] (omap3_init_early+0x1c/0x28)
[<c02fbb44>] (omap3_init_early+0x1c/0x28) from [<c02f9580>] (setup_arch+0x6b8/0x7a4)
[<c02f9580>] (setup_arch+0x6b8/0x7a4) from [<c02f754c>] (start_kernel+0x6c/0x264)
[<c02f754c>] (start_kernel+0x6c/0x264) from [<80008040>] (0x80008040)
---[ end trace 1b75b31a2719ed1d ]---

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
13 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux...
Olof Johansson [Fri, 16 Dec 2011 04:58:37 +0000 (20:58 -0800)]
Merge branch 'fixes' of git://git./linux/kernel/git/tmlind/linux-omap into fixes

13 years agoMerge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad...
Linus Torvalds [Thu, 15 Dec 2011 22:16:47 +0000 (14:16 -0800)]
Merge branch 'linux-next' of git://git./linux/kernel/git/konrad/ibft

* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft:
  ibft: Fix finding IBFT ACPI table on UEFI

13 years agoMerge branch 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Thu, 15 Dec 2011 22:15:01 +0000 (14:15 -0800)]
Merge branch 'staging-linus' of git://git./linux/kernel/git/gregkh/staging

* 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: r8712u: Add new USB ID
  staging: tidspbridge: request dmtimer clocks on init
  staging: tidspbridge: include module.h by default

13 years agoMerge branch 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Thu, 15 Dec 2011 22:14:41 +0000 (14:14 -0800)]
Merge branch 'usb-linus' of git://git./linux/kernel/git/gregkh/usb

* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: option: Removing one bogus and adding some new Huawei combinations
  USB: cdc-acm: add IDs for Motorola H24 HSPA USB module.
  usb: option: Add Huawei E398 controlling interfaces
  usb: renesas_usbhs: add hcd->has_tt for low/full speed
  usb: renesas_usbhs: typofix: irq_dtch control DTCHE
  usb: gadget: storage: release superspeed descriptors.

13 years agoARM: unwinder: fix bisection to find origin in .idx section
Uwe Kleine-König [Thu, 15 Dec 2011 20:47:56 +0000 (21:47 +0100)]
ARM: unwinder: fix bisection to find origin in .idx section

The bisection implemented in unwind_find_origin() stopped to early.  If
there is only a single entry left to check the original code just took
the end point as origin which might be wrong.

This was introduced in commit de66a979012d ("ARM: 7187/1: fix unwinding
for XIP kernels").

Reported-and-tested-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoBtrfs: unplug every once and a while
Chris Mason [Thu, 15 Dec 2011 20:38:41 +0000 (15:38 -0500)]
Btrfs: unplug every once and a while

The btrfs io submission threads can build up massive plug lists.  This
keeps things more reasonable so we don't hand over huge dumps of IO at
once.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agoblock: don't kick empty queue in blk_drain_queue()
Tejun Heo [Thu, 15 Dec 2011 19:03:04 +0000 (20:03 +0100)]
block: don't kick empty queue in blk_drain_queue()

While probing, fd sets up queue, probes hardware and tears down the
queue if probing fails.  In the process, blk_drain_queue() kicks the
queue which failed to finish initialization and fd is unhappy about
that.

  floppy0: no floppy controllers found
  ------------[ cut here ]------------
  WARNING: at drivers/block/floppy.c:2929 do_fd_request+0xbf/0xd0()
  Hardware name: To Be Filled By O.E.M.
  VFS: do_fd_request called on non-open device
  Modules linked in:
  Pid: 1, comm: swapper Not tainted 3.2.0-rc4-00077-g5983fe2 #2
  Call Trace:
   [<ffffffff81039a6a>] warn_slowpath_common+0x7a/0xb0
   [<ffffffff81039b41>] warn_slowpath_fmt+0x41/0x50
   [<ffffffff813d657f>] do_fd_request+0xbf/0xd0
   [<ffffffff81322b95>] blk_drain_queue+0x65/0x80
   [<ffffffff81322c93>] blk_cleanup_queue+0xe3/0x1a0
   [<ffffffff818a809d>] floppy_init+0xdeb/0xe28
   [<ffffffff818a72b2>] ? daring+0x6b/0x6b
   [<ffffffff810002af>] do_one_initcall+0x3f/0x170
   [<ffffffff81884b34>] kernel_init+0x9d/0x11e
   [<ffffffff810317c2>] ? schedule_tail+0x22/0xa0
   [<ffffffff815dbb14>] kernel_thread_helper+0x4/0x10
   [<ffffffff81884a97>] ? start_kernel+0x2be/0x2be
   [<ffffffff815dbb10>] ? gs_change+0xb/0xb

Avoid it by making blk_drain_queue() kick queue iff dispatch queue has
something on it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Ralf Hildebrandt <Ralf.Hildebrandt@charite.de>
Reported-by: Wu Fengguang <fengguang.wu@intel.com>
Tested-by: Sergei Trofimovich <slyich@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
13 years agoMerge branch 'stable/for-linus-fixes-3.2' of git://git.kernel.org/pub/scm/linux/kerne...
Linus Torvalds [Thu, 15 Dec 2011 18:52:40 +0000 (10:52 -0800)]
Merge branch 'stable/for-linus-fixes-3.2' of git://git./linux/kernel/git/konrad/xen

* 'stable/for-linus-fixes-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/swiotlb: Use page alignment for early buffer allocation.
  xen: only limit memory map to maximum reservation for domain 0.

13 years agoMerge branch 'for-chris' of http://git.kernel.org/pub/scm/linux/kernel/git/josef...
Chris Mason [Thu, 15 Dec 2011 18:43:49 +0000 (13:43 -0500)]
Merge branch 'for-chris' of git./linux/kernel/git/josef/btrfs-work into integration

Conflicts:
fs/btrfs/inode.c

Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agoBtrfs: deal with NULL srv_rsv in the delalloc inode reservation code
Chris Mason [Thu, 15 Dec 2011 18:36:29 +0000 (13:36 -0500)]
Btrfs: deal with NULL srv_rsv in the delalloc inode reservation code

btrfs_update_inode is sometimes called with a null reservation.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agogpio: Fix DA9052 GPIO build errors.
Ashish Jangam [Thu, 15 Dec 2011 09:25:46 +0000 (14:55 +0530)]
gpio: Fix DA9052 GPIO build errors.

This patch is functionally tested on Samsung SMDKV6410.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
[grant.likely: don't create an unnecessary header file]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agoxen/swiotlb: Use page alignment for early buffer allocation.
Konrad Rzeszutek Wilk [Thu, 15 Dec 2011 16:28:46 +0000 (11:28 -0500)]
xen/swiotlb: Use page alignment for early buffer allocation.

This fixes an odd bug found on a Dell PowerEdge 1850/0RC130
(BIOS A05 01/09/2006) where all of the modules doing pci_set_dma_mask
would fail with:

ata_piix 0000:00:1f.1: enabling device (0005 -> 0007)
ata_piix 0000:00:1f.1: can't derive routing for PCI INT A
ata_piix 0000:00:1f.1: BMDMA: failed to set dma mask, falling back to PIO

The issue was the Xen-SWIOTLB was allocated such as that the end of
buffer was stradling a page (and also above 4GB). The fix was
spotted by Kalev Leonid  which was to piggyback on git commit
e79f86b2ef9c0a8c47225217c1018b7d3d90101c "swiotlb: Use page alignment
for early buffer allocation" which:

We could call free_bootmem_late() if swiotlb is not used, and
it will shrink to page alignment.

So alloc them with page alignment at first, to avoid lose two pages

And doing that fixes the outstanding issue.

CC: stable@kernel.org
Suggested-by: "Kalev, Leonid" <Leonid.Kalev@ca.com>
Reported-and-Tested-by: "Taylor, Neal E" <Neal.Taylor@ca.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
13 years agoxen: only limit memory map to maximum reservation for domain 0.
Ian Campbell [Wed, 14 Dec 2011 12:16:08 +0000 (12:16 +0000)]
xen: only limit memory map to maximum reservation for domain 0.

d312ae878b6a "xen: use maximum reservation to limit amount of usable RAM"
clamped the total amount of RAM to the current maximum reservation. This is
correct for dom0 but is not correct for guest domains. In order to boot a guest
"pre-ballooned" (e.g. with memory=1G but maxmem=2G) in order to allow for
future memory expansion the guest must derive max_pfn from the e820 provided by
the toolstack and not the current maximum reservation (which can reflect only
the current maximum, not the guest lifetime max). The existing algorithm
already behaves this correctly if we do not artificially limit the maximum
number of pages for the guest case.

For a guest booted with maxmem=512, memory=128 this results in:
 [    0.000000] BIOS-provided physical RAM map:
 [    0.000000]  Xen: 0000000000000000 - 00000000000a0000 (usable)
 [    0.000000]  Xen: 00000000000a0000 - 0000000000100000 (reserved)
-[    0.000000]  Xen: 0000000000100000 - 0000000008100000 (usable)
-[    0.000000]  Xen: 0000000008100000 - 0000000020800000 (unusable)
+[    0.000000]  Xen: 0000000000100000 - 0000000020800000 (usable)
...
 [    0.000000] NX (Execute Disable) protection: active
 [    0.000000] DMI not present or invalid.
 [    0.000000] e820 update range: 0000000000000000 - 0000000000010000 (usable) ==> (reserved)
 [    0.000000] e820 remove range: 00000000000a0000 - 0000000000100000 (usable)
-[    0.000000] last_pfn = 0x8100 max_arch_pfn = 0x1000000
+[    0.000000] last_pfn = 0x20800 max_arch_pfn = 0x1000000
 [    0.000000] initial memory mapped : 0 - 027ff000
 [    0.000000] Base memory trampoline at [c009f000] 9f000 size 4096
-[    0.000000] init_memory_mapping: 0000000000000000-0000000008100000
-[    0.000000]  0000000000 - 0008100000 page 4k
-[    0.000000] kernel direct mapping tables up to 8100000 @ 27bb000-27ff000
+[    0.000000] init_memory_mapping: 0000000000000000-0000000020800000
+[    0.000000]  0000000000 - 0020800000 page 4k
+[    0.000000] kernel direct mapping tables up to 20800000 @ 26f8000-27ff000
 [    0.000000] xen: setting RW the range 27e8000 - 27ff000
 [    0.000000] 0MB HIGHMEM available.
-[    0.000000] 129MB LOWMEM available.
-[    0.000000]   mapped low ram: 0 - 08100000
-[    0.000000]   low ram: 0 - 08100000
+[    0.000000] 520MB LOWMEM available.
+[    0.000000]   mapped low ram: 0 - 20800000
+[    0.000000]   low ram: 0 - 20800000

With this change "xl mem-set <domain> 512M" will successfully increase the
guest RAM (by reducing the balloon).

There is no change for dom0.

Reported-and-Tested-by: George Shuklin <george.shuklin@gmail.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: stable@kernel.org
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
13 years agoBtrfs: only set cache_generation if we setup the block group
Josef Bacik [Tue, 13 Dec 2011 21:04:54 +0000 (16:04 -0500)]
Btrfs: only set cache_generation if we setup the block group

A user reported a problem booting into a new kernel with the old format inodes.
He was panicing in cow_file_range while writing out the inode cache.  This is
because if the block group is not cached we'll just skip writing out the cache,
however if it gets dirtied again in the same transaction and it finished caching
we'd go ahead and write it out, but since we set cache_generation to the transid
we think we've already truncated it and will just carry on, running into
cow_file_range and blowing up.  We need to make sure we only set
cache_generation if we've done the truncate.  The user tested this patch and
verified that the panic no longer occured.  Thanks,

Reported-and-Tested-by: Klaus Bitto <klaus.bitto@gmail.com>
Signed-off-by: Josef Bacik <josef@redhat.com>
13 years agoBtrfs: don't panic if orphan item already exists
Josef Bacik [Tue, 13 Dec 2011 17:55:58 +0000 (12:55 -0500)]
Btrfs: don't panic if orphan item already exists

I've been hitting this BUG_ON() in btrfs_orphan_add when running xfstest 269 in
a loop.  This is because we will add an orphan item, do the truncate, the
truncate will fail for whatever reason (*cough*ENOSPC*cough*) and then we're
left with an orphan item still in the fs.  Then we come back later to do another
truncate and it blows up because we already have an orphan item.  This is ok so
just fix the BUG_ON() to only BUG() if ret is not EEXIST.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>