pandora-kernel.git
13 years agoMerge fixes fixes-non-critical testing-misc tmp-merge testing-board cbus
Tony Lindgren [Mon, 2 Jul 2012 13:20:14 +0000 (06:20 -0700)]
Merge fixes fixes-non-critical testing-misc tmp-merge testing-board cbus

13 years agoMerge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux into...
Tony Lindgren [Mon, 2 Jul 2012 12:43:18 +0000 (05:43 -0700)]
Merge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux into tmp-merge for testing

13 years agoMerge remote-tracking branch 'rmk/for-next' into tmp-merge for testing
Tony Lindgren [Mon, 2 Jul 2012 12:34:16 +0000 (05:34 -0700)]
Merge remote-tracking branch 'rmk/for-next' into tmp-merge for testing

13 years agoMerge branch 'devel-board' into tmp-merge
Tony Lindgren [Mon, 2 Jul 2012 12:30:13 +0000 (05:30 -0700)]
Merge branch 'devel-board' into tmp-merge

13 years agoMerge branch 'devel-dt' into tmp-merge
Tony Lindgren [Mon, 2 Jul 2012 12:30:05 +0000 (05:30 -0700)]
Merge branch 'devel-dt' into tmp-merge

13 years agoARM: OMAP4: TWL6030: ensure sys_nirq1 is mux'd and wakeup enabled
Kevin Hilman [Thu, 28 Jun 2012 17:01:32 +0000 (10:01 -0700)]
ARM: OMAP4: TWL6030: ensure sys_nirq1 is mux'd and wakeup enabled

The SYS_NIRQ1 pin is the interupt line for the PMIC part of the TWL6030
and interrupts from the PMIC are needed as wakeup sources.

Ensure this pin is mux'd as input and has wakeup enabled so PMIC
interupts (e.g. RTC) can be used as wakeup sources.

Tested on OMAP4430/Panda.

Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoARM: OMAP2: Overo: init I2C before MMC to fix MMC suspend/resume failure
Kevin Hilman [Thu, 28 Jun 2012 17:01:31 +0000 (10:01 -0700)]
ARM: OMAP2: Overo: init I2C before MMC to fix MMC suspend/resume failure

In order for suspend/resume dependencies to work correctly, I2C has to
be initialized (more specifically, registered with the driver core)
before MMC.  Without this, the MMC driver fails to adjust the VMMC
regulator (using i2c writes) during the suspend path.

Problem found testing suspend/resume on 3730/OveroSTORM platform.

Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoARM: OMAP3: cm-t35: add tvp5150 decoder support
Dmitry Lifshitz [Wed, 13 Jun 2012 12:55:10 +0000 (15:55 +0300)]
ARM: OMAP3: cm-t35: add tvp5150 decoder support

Register the tvp5150 video decoder in ISP subsystem.

Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoARM: OMAP3: cm-t35: add mt9t001 camera sensor support
Dmitry Lifshitz [Wed, 13 Jun 2012 12:55:09 +0000 (15:55 +0300)]
ARM: OMAP3: cm-t35: add mt9t001 camera sensor support

Setup pinmux for CPI and register the mt9t001 camera sensor
in ISP subsystem.

Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoomap2+: add drm device
Andy Gross [Wed, 23 May 2012 20:08:10 +0000 (15:08 -0500)]
omap2+: add drm device

Register OMAP DRM/KMS platform device.  DMM is split into a
separate device using hwmod.

Signed-off-by: Andy Gross <andy.gross@ti.com>
Signed-off-by: Rob Clark <rob.clark@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoarm/dts: omap3-evm: Add i2c and twl4030 support
Vaibhav Hiremath [Mon, 2 Jul 2012 08:26:44 +0000 (01:26 -0700)]
arm/dts: omap3-evm: Add i2c and twl4030 support

Add support for TWL4030, which is interfaced on i2c1 bus.
Also add clock frequencies for other i2c instances (2 & 3)
required for client-device exist on OMAP3EVM board.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoarm/dts: Add support for TI AM3517/05 EVM board
Vaibhav Hiremath [Mon, 2 Jul 2012 08:26:39 +0000 (01:26 -0700)]
arm/dts: Add support for TI AM3517/05 EVM board

Add AM3517 EVM (AM3517/05) DTS file to use the omap3.dtsi SoC file,
along with memory node and basic i2c information.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoarm/dts: OMAP2: Add support for OMAP2420H4 Board
Jon Hunter [Mon, 2 Jul 2012 08:26:00 +0000 (01:26 -0700)]
arm/dts: OMAP2: Add support for OMAP2420H4 Board

Simple DTS file for OMAP2420H4 board adding memory information to allow
device-tree testing on an OMAP2420. OMAP2420H4 board has 64MB of RAM.

Verified that kernel boots with DT using a simple RAMDISK file-system on
OMAP2420H4.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoMerge branches 'dmaengine', 'fixes' and 'misc' into for-next
Russell King [Sun, 1 Jul 2012 13:21:56 +0000 (14:21 +0100)]
Merge branches 'dmaengine', 'fixes' and 'misc' into for-next

13 years agoARM: 7438/1: fill possible PMD empty section gaps
Nicolas Pitre [Wed, 27 Jun 2012 16:28:57 +0000 (17:28 +0100)]
ARM: 7438/1: fill possible PMD empty section gaps

On ARM with the 2-level page table format, a PMD entry is represented by
two consecutive section entries covering 2MB of virtual space.

However, static mappings always were allowed to use separate 1MB section
entries.  This means in practice that a static mapping may create half
populated PMDs via create_mapping().

Since commit 0536bdf33f (ARM: move iotable mappings within the vmalloc
region) those static mappings are located in the vmalloc area. We must
ensure no such half populated PMDs are accessible once vmalloc() or
ioremap() start looking at the vmalloc area for nearby free virtual
address ranges, or various things leading to a kernel crash will happen.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Reported-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: "R, Sricharan" <r.sricharan@ti.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoMerge branches 'dma-omap', 'dma-pl08x' and 'dma-sa11x0' into dmaengine
Russell King [Sun, 1 Jul 2012 13:19:21 +0000 (14:19 +0100)]
Merge branches 'dma-omap', 'dma-pl08x' and 'dma-sa11x0' into dmaengine

13 years agoAdd feature removal of old OMAP private DMA implementation
Russell King [Mon, 23 Apr 2012 15:52:29 +0000 (16:52 +0100)]
Add feature removal of old OMAP private DMA implementation

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agomtd: omap2: remove private DMA API implementation
Russell King [Tue, 24 Apr 2012 23:19:39 +0000 (00:19 +0100)]
mtd: omap2: remove private DMA API implementation

Remove the private DMA API implementation from nand/omap2.c
making it use entirely the DMA engine API.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agomtd: omap2: add DMA engine support
Russell King [Tue, 24 Apr 2012 23:16:00 +0000 (00:16 +0100)]
mtd: omap2: add DMA engine support

Add DMA engine support to the OMAP2 NAND driver.  This supplements the
private DMA API implementation contained within this driver, and the
driver can be independently switched at build time between using DMA
engine and the private DMA API.

Tested-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agospi: omap2-mcspi: remove private DMA API implementation
Russell King [Mon, 23 Apr 2012 12:56:25 +0000 (13:56 +0100)]
spi: omap2-mcspi: remove private DMA API implementation

Remove the private DMA API implementation from spi-omap2-mcspi.c,
making it use entirely the DMA engine API.

Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agospi: omap2-mcspi: add DMA engine support
Russell King [Mon, 23 Apr 2012 12:51:48 +0000 (13:51 +0100)]
spi: omap2-mcspi: add DMA engine support

Add DMA engine support to the OMAP SPI driver.  This supplements the
private DMA API implementation contained within this driver, and the
driver can be independently switched at build time between using DMA
engine and the private DMA API for the transmit and receive sides.

Tested-by: Shubhrajyoti <shubhrajyoti@ti.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: omap: remove mmc platform data dma_mask and initialization
Russell King [Wed, 18 Apr 2012 09:43:18 +0000 (10:43 +0100)]
ARM: omap: remove mmc platform data dma_mask and initialization

DMAengine uses the DMA engine device structure when mapping/unmapping
memory for DMA, so the MMC devices do not need their DMA masks
initialized (this reflects hardware: the MMC device is not the device
doing DMA.)

Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agommc: omap: remove private DMA API implementation
Russell King [Sat, 21 Apr 2012 21:41:10 +0000 (22:41 +0100)]
mmc: omap: remove private DMA API implementation

Remove the private DMA API implementation from omap, making it use
entirely the DMA engine API.

Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agommc: omap: add DMA engine support
Russell King [Sat, 21 Apr 2012 21:35:42 +0000 (22:35 +0100)]
mmc: omap: add DMA engine support

Add DMA engine support to the OMAP driver.  This supplements the
private DMA API implementation contained within this driver, and the
driver can be switched at build time between using DMA engine and the
private DMA API.

Tested-by: Tony Lindgren <tony@atomide.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agommc: omap_hsmmc: remove private DMA API implementation
Russell King [Fri, 13 Apr 2012 11:27:37 +0000 (12:27 +0100)]
mmc: omap_hsmmc: remove private DMA API implementation

Remove the private DMA API implementation from omap_hsmmc, making it
use entirely the DMA engine API.

Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agommc: omap_hsmmc: add DMA engine support
Russell King [Fri, 13 Apr 2012 11:14:39 +0000 (12:14 +0100)]
mmc: omap_hsmmc: add DMA engine support

Add DMA engine support to the OMAP HSMMC driver.  This supplements the
private DMA API implementation contained within this driver, and the
driver can be switched at build time between using DMA engine and the
private DMA API.

Tested-by: Grazvydas Ignotas <notasas@gmail.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: omap: add support for cyclic DMA
Russell King [Thu, 21 Jun 2012 09:40:15 +0000 (10:40 +0100)]
dmaengine: omap: add support for cyclic DMA

Add support for cyclic DMA to the OMAP DMA engine driver.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: omap: add support for setting fi
Russell King [Mon, 18 Jun 2012 15:45:19 +0000 (16:45 +0100)]
dmaengine: omap: add support for setting fi

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: omap: add support for returning residue in tx_state method
Russell King [Thu, 21 Jun 2012 09:37:35 +0000 (10:37 +0100)]
dmaengine: omap: add support for returning residue in tx_state method

Add support for returning the residue for a particular descriptor by
reading the current DMA address for the source or destination side of
the transfer as appropriate, and walking the scatterlist until we find
an entry containing the current DMA address.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: add OMAP DMA engine driver
Russell King [Fri, 13 Apr 2012 11:10:24 +0000 (12:10 +0100)]
dmaengine: add OMAP DMA engine driver

Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: sa11x0-dma: add cyclic DMA support
Russell King [Tue, 15 May 2012 17:34:33 +0000 (18:34 +0100)]
dmaengine: sa11x0-dma: add cyclic DMA support

Add support for cyclic DMA on sa11x0 platforms.  This follows the
discussed behaviour that the callback will be called at some point
after period expires, and may coalesce multiple period expiries into
one callback (due to the tasklet behaviour.)

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: sa11x0-dma: fix DMA residue support
Russell King [Thu, 10 May 2012 22:45:24 +0000 (23:45 +0100)]
dmaengine: sa11x0-dma: fix DMA residue support

The semantics now implemented are:

- If the cookie has completed successfully, the residue will be zero.
- If the cookie is in progress or the channel is paused, it will be the
  number of bytes yet to be transferred. [*]
- If the cookie is queued, it will be the number of bytes in the
  descriptor.

* - where this is the number of bytes yet to be transferred to/from
  RAM.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: ensure all descriptors are freed when channel is released
Russell King [Sat, 26 May 2012 16:00:49 +0000 (17:00 +0100)]
dmaengine: PL08x: ensure all descriptors are freed when channel is released

Ensure all queued descriptors are freed when the channel is released,
ensuring we don't leak memory

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: get rid of write only pool_ctr and free_txd locking
Russell King [Sat, 26 May 2012 15:33:39 +0000 (16:33 +0100)]
dmaengine: PL08x: get rid of write only pool_ctr and free_txd locking

The free function says the pl08x lock should be taken before calling
it.  However, the DMA pool allocation/freeing is already properly
locked.  The only thing that would need this is pool_ctr, which
happens to be a write-only variable.

Let's get rid of this, and eliminate any need for additional locking
here.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: get rid of pl08x_prep_channel_resources
Russell King [Sat, 26 May 2012 14:43:00 +0000 (15:43 +0100)]
dmaengine: PL08x: get rid of pl08x_prep_channel_resources

This function is now unnecessary; we can move its internals inline
instead.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: fix tx_status function to return correct residue
Russell King [Sat, 26 May 2012 14:05:52 +0000 (15:05 +0100)]
dmaengine: PL08x: fix tx_status function to return correct residue

Now that we're converted to use the generic vchan support, we can fix
the residue return from tx_status to be compliant with dmaengine.  This
returns the number of bytes remaining for the _specified_ cookie, not
the number of bytes in all pending transfers on the channel.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: convert to use vchan done list
Russell King [Sat, 26 May 2012 13:42:23 +0000 (14:42 +0100)]
dmaengine: PL08x: convert to use vchan done list

Convert to use the virtual dma channel done list, tasklet, and
descriptor freeing.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: convert to use vchan submitted/issued lists
Russell King [Sat, 26 May 2012 13:27:40 +0000 (14:27 +0100)]
dmaengine: PL08x: convert to use vchan submitted/issued lists

Convert to use the virtual dma channel submitted/issued descriptor
lists rather than our own private lists, and use the virtual dma
channel support functions to manage these lists.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: use vchan's spinlock
Russell King [Sat, 26 May 2012 13:09:53 +0000 (14:09 +0100)]
dmaengine: PL08x: use vchan's spinlock

Initialize the vchan struct, and use the provided spinlock rather than
our own.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: convert to use virt-dma structs
Russell King [Sat, 26 May 2012 13:04:29 +0000 (14:04 +0100)]
dmaengine: PL08x: convert to use virt-dma structs

Convert PL08x to use the virt-dma structures.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: rejig physical channel allocation
Russell King [Sat, 26 May 2012 12:54:15 +0000 (13:54 +0100)]
dmaengine: PL08x: rejig physical channel allocation

Rework the physical channel allocation mechanism to only allocate
physical channels to virtual channels when they're about to be used.
This eliminates all the complexity with holding channels while
descriptors are being prepared, which is completely unnecessary.

This also brings this driver to a state where the generic virtual DMA
code can be used with this driver, and opens up the possibility of
properly scheduling and prioritorising physical DMA channels to
virtual DMA channels.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: start next descriptor from irq context
Russell King [Fri, 25 May 2012 14:41:13 +0000 (15:41 +0100)]
dmaengine: PL08x: start next descriptor from irq context

Rather than waiting for the tasklet to run, we can start the next
descriptor from interrupt context, as soon as we know that the
previous descriptor has completed.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: split the pend_list in two
Russell King [Fri, 25 May 2012 12:10:36 +0000 (13:10 +0100)]
dmaengine: PL08x: split the pend_list in two

Our behaviour wasn't correct; issue_pending is supposed to be called
before any submitted descriptors are available for processing by the
DMA engine.  Split the pend_list in two, one for submitted descriptors
and another list for issued descriptors.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: re-jig the starting of txds
Russell King [Fri, 25 May 2012 11:32:00 +0000 (12:32 +0100)]
dmaengine: PL08x: re-jig the starting of txds

Rather than code the de-queue of the txd several times, move that into
the start_txd function.  Rename this to better illustrate what it's
now doing, and call this function when starting a delayed memcpy().

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: remove waiting descriptor pointer
Russell King [Fri, 25 May 2012 11:08:13 +0000 (12:08 +0100)]
dmaengine: PL08x: remove waiting descriptor pointer

As we no longer need to pass a descriptor to prep_phy_channel(), we
don't need to keep track of the descriptor which is waiting for a
channel to become available.  So let's get rid of it.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: move DMA signal muxing into slave prepare code
Russell King [Fri, 25 May 2012 10:48:51 +0000 (11:48 +0100)]
dmaengine: PL08x: move DMA signal muxing into slave prepare code

Move the DMA request muxing into the slave prepare code and txd
release/completion code.  This means we only hold the DMA request
mux while there are descriptors waiting to be started or are in
progress.

This leaves txd->direction as a write-only variable; remove it.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: convert to a list of completed descriptors
Russell King [Fri, 25 May 2012 09:51:19 +0000 (10:51 +0100)]
dmaengine: PL08x: convert to a list of completed descriptors

Convert PL08x to use a list of completed descriptors rather than
merely relying upon a single pointer.  This makes it possible to
schedule the tasklet for other purposes, and makes our behaviour
similar to virt-dma.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: track mux usage on a per-channel basis.
Russell King [Fri, 25 May 2012 10:32:45 +0000 (11:32 +0100)]
dmaengine: PL08x: track mux usage on a per-channel basis.

Keep track of the number of descriptors currently using a MUX setting
on a per-channel basis.  This allows us to know when we have descriptors
queued somewhere which have been assigned a DMA request signal.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: move DMA signal muxing into pl08x_dma_chan struct
Russell King [Fri, 25 May 2012 10:15:15 +0000 (11:15 +0100)]
dmaengine: PL08x: move DMA signal muxing into pl08x_dma_chan struct

Move the signal handling out of the physical channel structure into
the virtual channel structure, where it should belong as it has more
to do with the virtual channel than the physical one.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: split DMA signal muxing from channel alloc
Russell King [Fri, 25 May 2012 10:10:58 +0000 (11:10 +0100)]
dmaengine: PL08x: split DMA signal muxing from channel alloc

Split the DMA request mux signal handling from the physical channel
allocation code.  The physical channel has very little to do with the
DMA request input which will be used, so these should be two separate
operations.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: get rid of unnecessary checks in dma_slave_config
Russell King [Wed, 16 May 2012 11:20:55 +0000 (12:20 +0100)]
dmaengine: PL08x: get rid of unnecessary checks in dma_slave_config

Get rid of the unnecessary checks in dma_slave_config utilizing
the DMA direction.  This allows us to move the computation of
cctl to the prepare function.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: ignore 'direction' argument in dma_slave_config
Russell King [Wed, 16 May 2012 10:33:31 +0000 (11:33 +0100)]
dmaengine: PL08x: ignore 'direction' argument in dma_slave_config

Ignore the direction argument in dma_slave_config, and configure both
directions independently.  We still check that the configuration for
the intended direction is valid; this check will eventually be dropped.
This check is just for debugging at present.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: extract function to to generate cctl values
Russell King [Wed, 16 May 2012 10:16:03 +0000 (11:16 +0100)]
dmaengine: PL08x: extract function to to generate cctl values

Extract the functionality from dma_slave_config to generate the cctl
values for a given bus width and burst size.  This allows us to use
this elsewhere in the driver, namely the prepare functions.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: move the bus and increment selection to dma prepare function
Russell King [Wed, 16 May 2012 10:08:43 +0000 (11:08 +0100)]
dmaengine: PL08x: move the bus and increment selection to dma prepare function

Move the bus and transfer increment selection to the DMA prepare
function rather than the slave configuration function.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: get rid of device_fc in struct pl08x_dma_chan
Russell King [Wed, 16 May 2012 10:05:09 +0000 (11:05 +0100)]
dmaengine: PL08x: get rid of device_fc in struct pl08x_dma_chan

As we now store the dma_slave_config in pl08x_dma_chan, we don't need
to store this separately.  Use the one in dma_slave_config directly.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: get src/dst addr direct from dma_slave_config struct
Russell King [Wed, 16 May 2012 10:02:40 +0000 (11:02 +0100)]
dmaengine: PL08x: get src/dst addr direct from dma_slave_config struct

Add a dma_slave_config struct to struct pl08x_dma_chan, and move the
src_addr/dst_addr arguments into this struct.  This is a step away
from using the dma_slave_config's direction member.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: constify channel names and bus_id strings
Russell King [Mon, 28 May 2012 09:18:55 +0000 (10:18 +0100)]
dmaengine: PL08x: constify channel names and bus_id strings

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: move private data structures into amba-pl08x.c
Russell King [Wed, 16 May 2012 09:48:44 +0000 (10:48 +0100)]
dmaengine: PL08x: move private data structures into amba-pl08x.c

Move the driver private data structures into the driver itself, rather
than having them exposed to everyone in a header file.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoARM: spear: update for PL08x dma engine changes
Russell King [Fri, 8 Jun 2012 08:46:23 +0000 (09:46 +0100)]
ARM: spear: update for PL08x dma engine changes

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: clean up get_signal/put_signal
Russell King [Thu, 17 May 2012 14:01:28 +0000 (15:01 +0100)]
dmaengine: PL08x: clean up get_signal/put_signal

Try to avoid dereferencing the DMA engine's channel struct in these
platform helpers; instead, pass a pointer to the channel data into
get_signal(), and the returned signal number to put_signal().

Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: remove circular_buffer boolean from channel data
Russell King [Sat, 26 May 2012 15:58:15 +0000 (16:58 +0100)]
dmaengine: PL08x: remove circular_buffer boolean from channel data

Circular buffers are not handled in this way; we have a separate API
call now to setup circular buffers.  So lets not mislead people with
this bool.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: remove redundant spinlock
Russell King [Sat, 26 May 2012 16:05:40 +0000 (17:05 +0100)]
dmaengine: PL08x: remove redundant spinlock

The pl08x_driver_data spinlock is only ever initialized.  Nothing else
uses it.  Let's get rid of it.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: fix missed dma_transfer_direction fixup
Russell King [Fri, 25 May 2012 13:37:56 +0000 (14:37 +0100)]
dmaengine: PL08x: fix missed dma_transfer_direction fixup

db8196df4 (dmaengine: move drivers to dma_transfer_direction) missed
fixing up the "DMA_NONE" case.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: PL08x: remove runtime PM support
Russell King [Thu, 17 May 2012 17:23:38 +0000 (18:23 +0100)]
dmaengine: PL08x: remove runtime PM support

The runtime PM support conflicts with the generic AMBA bus PM, and also
causes a potential deadlock with the PL011 driver as it results in
interrupts being enabled beneath a spinlock.

I don't presently see any solution to this other than by removing the
runtime PM support entirely from the DMA engine driver.  Alternative
suggestions welcome.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: virt-dma: add support for cyclic DMA periodic callbacks
Russell King [Mon, 14 May 2012 14:17:20 +0000 (15:17 +0100)]
dmaengine: virt-dma: add support for cyclic DMA periodic callbacks

Add support for cyclic DMA's periodic callbacks.  Drivers are expected
to call vchan_cyclic_callback() when a period has completed, which will
schedule the tasklet to make the callback into the driver.

As callbacks are made from tasklet context, it is important to realise
that we don't guarantee a callback for each completed period, but for
N completed periods where N may be greater than one.

Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: virt-dma: vchan_find_desc()
Russell King [Thu, 10 May 2012 22:39:27 +0000 (23:39 +0100)]
dmaengine: virt-dma: vchan_find_desc()

Add a function to find a descriptor within the depths of the
virtualized DMA channel support.  Needed for tx_status functionality.

Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agodmaengine: split out virtual channel DMA support from sa11x0 driver
Russell King [Fri, 13 Apr 2012 11:07:23 +0000 (12:07 +0100)]
dmaengine: split out virtual channel DMA support from sa11x0 driver

Split the virtual slave channel DMA support from the sa11x0 driver so
this code can be shared with other slave DMA engine drivers.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoLinux 3.5-rc5 v3.5-rc5
Linus Torvalds [Sat, 30 Jun 2012 23:08:57 +0000 (16:08 -0700)]
Linux 3.5-rc5

13 years agoMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Sat, 30 Jun 2012 23:01:50 +0000 (16:01 -0700)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Another week, another batch of fixes.

  All are small, contained, targeted fixes for explicit problems --
  mostly build and boot failures across i.MX, OMAP, Renesas/Shmobile and
  Samsung."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: imx6q: fix suspend regression caused by common clk migration
  ARM: OMAP4470: Fix OMAP4470 boot failure
  ARM: EXYNOS: Fix EXYNOS_DEV_DMA Kconfig entry
  ARM: OMAP2+: nand: fix build error when CONFIG_MTD_ONENAND_OMAP2=n
  ARM: shmobile: r8a7779: Route all interrupts to ARM
  ARM: shmobile: kzm9d: use late init machine hook
  ARM: shmobile: kzm9g: use late init machine hook
  ARM: mach-shmobile: armadillo800eva: Use late init machine hook
  ARM: SAMSUNG: Fix for S3C2412 EBI memory mapping
  ARM: mach-shmobile: add missing GPIO IRQ configuration on mackerel
  ARM: mach-shmobile: Fix build when SMP is enabled and EMEV2 is not enabled
  ARM: shmobile: sh7372: bugfix: chclr_offset base
  ARM: shmobile: sh73a0: bugfix: SY-DMAC number
  ARM: SAMSUNG: Should check for IS_ERR(clk) instead of NULL

13 years agoprintk.c: fix kernel-doc warnings
Randy Dunlap [Sat, 30 Jun 2012 22:37:24 +0000 (15:37 -0700)]
printk.c: fix kernel-doc warnings

Fix kernel-doc warnings in printk.c: use correct parameter name.

  Warning(kernel/printk.c:2429): No description found for parameter 'buf'
  Warning(kernel/printk.c:2429): Excess function parameter 'line' description in 'kmsg_dump_get_buffer'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agolinux/irq.h: fix kernel-doc warning
Randy Dunlap [Sat, 30 Jun 2012 22:30:46 +0000 (15:30 -0700)]
linux/irq.h: fix kernel-doc warning

Fix kernel-doc warning.  This struct member was removed in commit
875682648b89 ("irq: Remove irq_chip->release()") so remove its
associated kernel-doc entry also.

  Warning(include/linux/irq.h:338): Excess struct/union/enum/typedef member 'release' description in 'irq_chip'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Richard Weinberger <richard@nod.at>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge branch 'v3.5-samsung-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel...
Olof Johansson [Sat, 30 Jun 2012 22:27:52 +0000 (15:27 -0700)]
Merge branch 'v3.5-samsung-fixes-1' of git://git./linux/kernel/git/kgene/linux-samsung into fixes

* 'v3.5-samsung-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: Fix EXYNOS_DEV_DMA Kconfig entry
  ARM: SAMSUNG: Fix for S3C2412 EBI memory mapping
  ARM: SAMSUNG: Should check for IS_ERR(clk) instead of NULL

13 years agoARM: imx6q: fix suspend regression caused by common clk migration
Shawn Guo [Tue, 5 Jun 2012 07:16:43 +0000 (15:16 +0800)]
ARM: imx6q: fix suspend regression caused by common clk migration

When moving to common clk framework, the imx6q clks rom and mmdc_ch1_axi
get different on/off states than old clk driver, which breaks suspend
function.  There might be a better way to manage these clocks, but let's
takes the old clk driver approach to fix the regression first.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
13 years agoMerge tag 'omap-fixes-for-v3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel...
Olof Johansson [Sat, 30 Jun 2012 22:21:00 +0000 (15:21 -0700)]
Merge tag 'omap-fixes-for-v3.5-rc4' of git://git./linux/kernel/git/tmlind/linux-omap into fixes

From Tony Lindgren:
"Here's one more regression fix that I missed earlier, and a
 trivial fix to get omap4470 booting."

* tag 'omap-fixes-for-v3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP4470: Fix OMAP4470 boot failure
  ARM: OMAP2+: nand: fix build error when CONFIG_MTD_ONENAND_OMAP2=n

13 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Linus Torvalds [Sat, 30 Jun 2012 18:11:58 +0000 (11:11 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux

Pull ACPI & Power Management patches from Len Brown.

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  acpi_pad: fix power_saving thread deadlock
  ACPI video: Still use ACPI backlight control if _DOS doesn't exist
  ACPI, APEI, Avoid too much error reporting in runtime
  ACPI: Add a quirk for "AMILO PRO V2030" to ignore the timer overriding
  ACPI: Remove one board specific WARN when ignoring timer overriding
  ACPI: Make acpi_skip_timer_override cover all source_irq==0 cases
  ACPI, x86: fix Dell M6600 ACPI reboot regression via DMI
  ACPI sysfs.c strlen fix

13 years agoMerge tag 'driver-core-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 30 Jun 2012 17:11:24 +0000 (10:11 -0700)]
Merge tag 'driver-core-3.5-rc5' of git://git./linux/kernel/git/gregkh/driver-core

Pull driver Core fixes from Greg Kroah-Hartman:
 "Here is a number of printk() fixes, specifically a few reported by the
  crazy blog program that ships in SUSE releases (that's "boot log" and
  not "web log", it predates the general "blog" terminology by many
  years), and the restoration of the continuation line functionality
  reported by Stephen and others.  Yes, the changes seem a bit big this
  late in the cycle, but I've been beating on them for a while now, and
  Stephen has even optimized it a bit, so all looks good to me.

  The other change in here is a Documentation update for the stable
  kernel rules describing how some distro patches should be backported,
  to hopefully drive a bit more response from the distros to the stable
  kernel releases.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'driver-core-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  printk: Optimize if statement logic where newline exists
  printk: flush continuation lines immediately to console
  syslog: fill buffer with more than a single message for SYSLOG_ACTION_READ
  Revert "printk: return -EINVAL if the message len is bigger than the buf size"
  printk: fix regression in SYSLOG_ACTION_CLEAR
  stable: Allow merging of backports for serious user-visible performance issues

13 years agoMerge branches 'acpi_pad-bugzilla-42981', 'apei-bugzilla-43282', 'video-bugzilla...
Len Brown [Sat, 30 Jun 2012 04:53:50 +0000 (00:53 -0400)]
Merge branches 'acpi_pad-bugzilla-42981', 'apei-bugzilla-43282', 'video-bugzilla-43168', 'bugzilla-40002' and 'bugfix-misc' into release

bug fixes

13 years agoacpi_pad: fix power_saving thread deadlock
Stuart Hayes [Wed, 13 Jun 2012 21:10:45 +0000 (16:10 -0500)]
acpi_pad: fix power_saving thread deadlock

The acpi_pad driver can get stuck in destroy_power_saving_task()
waiting for kthread_stop() to stop a power_saving thread.  The problem
is that the isolated_cpus_lock mutex is owned when
destroy_power_saving_task() calls kthread_stop(), which waits for a
power_saving thread to end, and the power_saving thread tries to
acquire the isolated_cpus_lock when it calls round_robin_cpu().  This
patch fixes the issue by making round_robin_cpu() use its own mutex.

https://bugzilla.kernel.org/show_bug.cgi?id=42981

Cc: stable@vger.kernel.org
Signed-off-by: Stuart Hayes <Stuart_Hayes@Dell.com>
Signed-off-by: Len Brown <len.brown@intel.com>
13 years agoACPI video: Still use ACPI backlight control if _DOS doesn't exist
Zhang Rui [Wed, 20 Jun 2012 01:48:43 +0000 (09:48 +0800)]
ACPI video: Still use ACPI backlight control if _DOS doesn't exist

This fixes a regression in 3.4-rc1 caused by commit
ea9f8856bd6d4ed45885b06a338f7362cd6c60e5
(ACPI video: Harden video bus adding.)

Some platforms don't have _DOS control method, but the ACPI
backlight still works.
We should not invoke _DOS for these platforms.

https://bugzilla.kernel.org/show_bug.cgi?id=43168

Cc: Igor Murzov <intergalactic.anonymous@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
13 years agoMerge tag 'pm-for-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Sat, 30 Jun 2012 02:05:41 +0000 (19:05 -0700)]
Merge tag 'pm-for-3.5-rc5' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael J. Wysocki:

 * Fix for a bug in async suspend error code path causing parents to
   wait forever for their children in case of a suspend error from
   Mandeep Singh Baines (-stable metarial).

 * Fix for a suspend regression related to earlier changes in the ACPI
   cpuidle driver from Deepthi Dharwar.

* tag 'pm-for-3.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM / ACPI: Fix suspend/resume regression caused by cpuidle cleanup.
  PM / Sleep: Prevent waiting forever on asynchronous suspend after abort

13 years agoprintk: Optimize if statement logic where newline exists
Steven Rostedt [Fri, 29 Jun 2012 15:40:11 +0000 (11:40 -0400)]
printk: Optimize if statement logic where newline exists

In reviewing Kay's fix up patch: "printk: Have printk() never buffer its
data", I found two if statements that could be combined and optimized.

Put together the two 'cont.len && cont.owner == current' if statements
into a single one, and check if we need to call cont_add(). This also
removes the unneeded double cont_flush() calls.

Link: http://lkml.kernel.org/r/1340869133.876.10.camel@mop
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Fri, 29 Jun 2012 20:50:11 +0000 (13:50 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

Pull powerpc fixes from Benjamin Herrenschmidt:
 "Here are a few powerpc fixes.  Arguably some of this should have come
  to you earlier but I'm only just catching up after my medical leave.

  Mostly these fixes regressions, a couple are long standing bugs."

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/pseries: Fix software invalidate TCE
  powerpc: check_and_cede_processor() never cedes
  powerpc/ftrace: Do not trace restore_interrupts()
  powerpc: Fix Section mismatch warnings in prom_init.c
  ppc64: fix missing to check all bits of _TIF_USER_WORK_MASK in preempt
  powerpc: Fix uninitialised error in numa.c
  powerpc: Fix BPF_JIT code to link with multiple TOCs

13 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 29 Jun 2012 17:29:54 +0000 (10:29 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar.

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, cpufeature: Remove stray %s, add -w to mkcapflags.pl
  x86, cpufeature: Catch duplicate CPU feature strings
  x86, cpufeature: Rename X86_FEATURE_DTS to X86_FEATURE_DTHERM
  x86: Fix kernel-doc warnings
  x86, compat: Use test_thread_flag(TIF_IA32) in compat signal delivery

13 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 29 Jun 2012 17:29:21 +0000 (10:29 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull oprofile fixlet from Ingo Molnar.

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  oprofile: perf: use NR_CPUS instead or nr_cpumask_bits for static array

13 years agoMerge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 29 Jun 2012 17:24:56 +0000 (10:24 -0700)]
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull RCU fix from Ingo Molnar.

Fixes a bug introduced in this merge window by commit b1420f1c ("Make
rcu_barrier() less disruptive")

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  rcu: Stop rcu_do_batch() from multiplexing the "count" variable

13 years agoprintk: flush continuation lines immediately to console
Kay Sievers [Thu, 28 Jun 2012 07:38:53 +0000 (09:38 +0200)]
printk: flush continuation lines immediately to console

Continuation lines are buffered internally, intended to merge the
chunked printk()s into a single record, and to isolate potentially
racy continuation users from usual terminated line users.

This though, has the effect that partial lines are not printed to
the console in the moment they are emitted. In case the kernel
crashes in the meantime, the potentially interesting printed
information would never reach the consoles.

Here we share the continuation buffer with the console copy logic,
and partial lines are always immediately flushed to the available
consoles. They are still buffered internally to improve the
readability and integrity of the messages and minimize the amount
of needed record headers to store.

Signed-off-by: Kay Sievers <kay@vrfy.org>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agoARM:OMAP4 add Phytec phyCORE-OMAP4 board
Jan Weitzel [Fri, 29 Jun 2012 14:33:50 +0000 (07:33 -0700)]
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, 29 Jun 2012 14:33:50 +0000 (07:33 -0700)]
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 'devel-am33xx' into tmp-merge
Tony Lindgren [Fri, 29 Jun 2012 14:29:33 +0000 (07:29 -0700)]
Merge branch 'devel-am33xx' into tmp-merge

13 years agoMerge branch 'devel-pm' into tmp-merge
Tony Lindgren [Fri, 29 Jun 2012 14:29:27 +0000 (07:29 -0700)]
Merge branch 'devel-pm' into tmp-merge

13 years agoMerge branch 'devel-driver' into tmp-merge
Tony Lindgren [Fri, 29 Jun 2012 14:29:21 +0000 (07:29 -0700)]
Merge branch 'devel-driver' into tmp-merge

13 years agoMerge branch 'devel-dmtimer' into tmp-merge
Tony Lindgren [Fri, 29 Jun 2012 14:29:13 +0000 (07:29 -0700)]
Merge branch 'devel-dmtimer' into tmp-merge

13 years agoMerge branch 'cleanup' into tmp-merge
Tony Lindgren [Fri, 29 Jun 2012 14:28:24 +0000 (07:28 -0700)]
Merge branch 'cleanup' into tmp-merge

Conflicts:
arch/arm/mach-omap2/clockdomains3xxx_data.c

13 years agoARM: OMAP2+: PM: fix IRQ_NOAUTOEN removal by mis-merge omap-devel-pm-for-v3.6
Kevin Hilman [Fri, 29 Jun 2012 14:03:34 +0000 (07:03 -0700)]
ARM: OMAP2+: PM: fix IRQ_NOAUTOEN removal by mis-merge

commit 99b59df0 (ARM: OMAP3: PM: fix shared PRCM interrupt leave
disabled at boot) added IRQ_NOAUTOEN to the PRCM interrupt so it could
be enabled later if needed.  However, this commit was partially undone
when merging the IO daisy chain rework in 9a17d88e (Merge tag
'omap-devel-c-for-3.6' of
git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into
devel-pm

This patch adds back the IRQ_NOAUTOEN fix that was removed by the
merge resolution.

This also fixes the following boot-time warning that showed up after
merging the IO daisy chain rework:

[    3.849334] WARNING: at kernel/irq/manage.c:436 enable_irq+0x3c/0x78()
[    3.856231] Unbalanced enable for IRQ 297
[    3.860473] Modules linked in:
[    3.863739] [<c001a114>] (unwind_backtrace+0x0/0xf0) from [<c003c7e8>] (warn_slowpath_common+0x4c/0x64)
[    3.873687] [<c003c7e8>] (warn_slowpath_common+0x4c/0x64) from [<c003c894>] (warn_slowpath_fmt+0x30/0x40)
[    3.883819] [<c003c894>] (warn_slowpath_fmt+0x30/0x40) from [<c00993e0>] (enable_irq+0x3c/0x78)
[    3.893035] [<c00993e0>] (enable_irq+0x3c/0x78) from [<c067b1e8>] (omap3_pm_init+0x328/0x5f4)
[    3.902099] [<c067b1e8>] (omap3_pm_init+0x328/0x5f4) from [<c067161c>] (init_machine_late+0x1c/0x28)
[    3.911773] [<c067161c>] (init_machine_late+0x1c/0x28) from [<c0008648>] (do_one_initcall+0x34/0x178)
[    3.921539] [<c0008648>] (do_one_initcall+0x34/0x178) from [<c066e8f4>] (kernel_init+0xfc/0x1c0)
[    3.930847] [<c066e8f4>] (kernel_init+0xfc/0x1c0) from [<c00140b0>] (kernel_thread_exit+0x0/0x8)
[    3.940246] ---[ end trace 55a0ad32ca2ca682 ]---

Reported-by: Javier Martinez Canillas <javier@dowhile0.org>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoMerge tag 'omap-devel-d-for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git... omap-fixes-non-critical-for-v3.6
Tony Lindgren [Fri, 29 Jun 2012 13:07:08 +0000 (06:07 -0700)]
Merge tag 'omap-devel-d-for-3.6' of git://git./linux/kernel/git/pjw/omap-pending into fixes-non-critical

Some OMAP AM35xx fixes.

The powerdomain and clockdomain data for the AM35xx are finally fixed.
The AM35xx EMAC/MDIO Ethernet controller integration code has been
converted to use the OMAP device and hwmod framework.  Also the UART4
and HSOTGUSB warnings have been fixed.

13 years agoARM: OMAP2+: do not allow SmartReflex to be built as a module omap-devel-driver-for-v3.6
Jean Pihet [Thu, 28 Jun 2012 16:55:38 +0000 (09:55 -0700)]
ARM: OMAP2+: do not allow SmartReflex to be built as a module

Disable the module option for POWER_AVS since this is currently not
supported.

This patch fixes these error in the case POWER_AVS is set to 'm':

arch/arm/mach-omap2/built-in.o: In function `sr_class3_configure':
arch/arm/mach-omap2/smartreflex-class3.c:43: undefined reference to `sr_configure_errgen'
arch/arm/mach-omap2/built-in.o: In function `sr_class3_disable':
arch/arm/mach-omap2/smartreflex-class3.c:33: undefined reference to `sr_disable_errgen'
arch/arm/mach-omap2/smartreflex-class3.c:35: undefined reference to `sr_disable'
arch/arm/mach-omap2/built-in.o: In function `sr_class3_enable':
arch/arm/mach-omap2/smartreflex-class3.c:28: undefined reference to `sr_enable'
arch/arm/mach-omap2/built-in.o: In function `sr_class3_init':
arch/arm/mach-omap2/smartreflex-class3.c:59: undefined reference to `sr_register_class'

Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
[tony@atomide.com: updated to use relative paths for the build error]
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agoARM: OMAP2+: fix CONFIG_CPU_IDLE dependency on CONFIG_PM
Kevin Hilman [Thu, 28 Jun 2012 16:45:14 +0000 (09:45 -0700)]
ARM: OMAP2+: fix CONFIG_CPU_IDLE dependency on CONFIG_PM

commit 164e0cbf60 (ARM: OMAP3/4: consolidate cpuidle Makefile) added
an OMAP-specific dependency from CPU_IDLE to CONFIG_PM.  This causes
some randconfig warnings when CONFIG_PM has unmet dependencies:

warning: (ARCH_OMAP3 && ARCH_OMAP4) selects PM which has unmet direct dependencies (PM_SLEEP || PM_RUNTIME)
warning: (ARCH_OMAP3 && ARCH_OMAP4) selects PM which has unmet direct dependencies (PM_SLEEP || PM_RUNTIME)
warning: (ARCH_OMAP3 && ARCH_OMAP4) selects PM which has unmet direct dependencies (PM_SLEEP || PM_RUNTIME)

Fix this by making the dependency on CONFIG_PM_RUNTIME (which in turn
will enable CONFIG_PM.)

Reported-by: Tony Lindgren <tony@atomide.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
13 years agopowerpc/pseries: Fix software invalidate TCE
Michael Neuling [Tue, 26 Jun 2012 21:26:37 +0000 (21:26 +0000)]
powerpc/pseries: Fix software invalidate TCE

The following added support for powernv but broke pseries/BML:
 1f1616e powerpc/powernv: Add TCE SW invalidation support

TCE_PCI_SW_INVAL was split into FREE and CREATE flags but the tests in
the pseries code were not updated to reflect this.

Signed-off-by: Michael Neuling <mikey@neuling.org>
cc: stable@kernel.org [v3.3+]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc: check_and_cede_processor() never cedes
Anton Blanchard [Wed, 27 Jun 2012 13:13:52 +0000 (13:13 +0000)]
powerpc: check_and_cede_processor() never cedes

Commit f948501b36c6 ("Make hard_irq_disable() actually hard-disable
interrupts") caused check_and_cede_processor to stop working.
->irq_happened will never be zero right after a hard_irq_disable
so the compiler removes the call to cede_processor completely.

The bug was introduced back in the lazy interrupt handling rework
of 3.4 but was hidden until recently because hard_irq_disable did
nothing.

This issue will eventually appear in 3.4 stable since the
hard_irq_disable fix is marked stable, so mark this one for stable
too.

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc/ftrace: Do not trace restore_interrupts()
Steven Rostedt [Mon, 4 Jun 2012 16:27:54 +0000 (16:27 +0000)]
powerpc/ftrace: Do not trace restore_interrupts()

As I was adding code that affects all archs, I started testing function
tracer against PPC64 and found that it currently locks up with 3.4
kernel. I figured it was due to tracing a function that shouldn't be, so
I went through the following process to bisect to find the culprit:

 cat /debug/tracing/available_filter_functions > t
 num=`wc -l t`
 sed -ne "1,${num}p" t > t1
 let num=num+1
 sed -ne "${num},$p" t > t2
 cat t1 > /debug/tracing/set_ftrace_filter
 echo function /debug/tracing/current_tracer
 <failed? bisect t1, if not bisect t2>

It finally came down to this function: restore_interrupts()

I'm not sure why this locks up the system. It just seems to prevent
scheduling from occurring. Interrupts seem to still work, as I can ping
the box. But all user processes freeze.

When restore_interrupts() is not traced, function tracing works fine.

Cc: stable@kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>