Commit Graph

1586 Commits

Author SHA1 Message Date
Uwe Kleine-König
52ade73621 spi/bitbang: don't error out if there is no setup callback provided
It's perfectly valid not to have a setup callback when the probe routine
does all the needed things. So don't even check for this case and trust
the caller.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-09 17:32:10 +01:00
Mark Brown
c7abc19ca6 Linux 3.11-rc4
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Merge tag 'v3.11-rc4' into spi-bitbang

Linux 3.11-rc4
2013-08-09 17:26:31 +01:00
Axel Lin
29f0d48846 spi: spi-mxs: Remove unused bits_per_word variable
The bits_per_word variable is not used after commit 24778be20f
"spi: convert drivers to use bits_per_word_mask".

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-06 18:06:29 +01:00
Mark Brown
5a9e119ce5 spi/build: Remove SPI_SIRF from compile test
It now needs the architecture dependant DMA driver.

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-06 11:43:37 +01:00
Axel Lin
e1b18ea809 spi: octeon: Remove my_master pointer from struct octeon_spi
Pass master to platform_set_drvdata() then we can remove my_master pointer.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-05 15:55:50 +01:00
Axel Lin
c2b6a3a82d spi: bcm2835: Use SPI_BPW_MASK macro for bits_per_word_mask setting
We have a SPI_BPW_MASK macro defined in spi.h, use it instead of open-coded.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-05 15:55:09 +01:00
Guennadi Liakhovetski
e2b0509908 spi: rspi: provide port addresses to dmaengine driver via slave configuration
Don't rely on shdma dhaengine driver getting DMA slave addresses from its
slave configuration. Instead provide those addresses, using a
dmaengine_slave_config() call.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-02 17:28:43 +01:00
Emil Goode
6a3fc31f35 spi/ep93xx: Fix format specifier warning
This patch fixes the following sparse warning by changing the
the format specifier for size_t to %zu.

drivers/spi/spi-ep93xx.c:512:3: warning:
	format ‘%d’ expects argument of	type ‘int’,
	but argument 3 has type ‘size_t’ [-Wformat]

Signed-off-by: Emil Goode <emilgoode@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-31 17:55:40 +01:00
Emil Goode
2de024b766 spi/atmel: Fix format specifier warnings
This patch fixes the following sparse warnings.
dma_addr_t can be either u32 or u64 so we should cast to the
largest type and use the format specifier %llx.

drivers/spi/spi-atmel.c: In function ‘atmel_spi_next_xfer_dma_submit’:
drivers/spi/spi-atmel.c:631:2: warning:
	format ‘%x’ expects argument of type ‘unsigned int’,
	but argument 7 has type ‘dma_addr_t’ [-Wformat]
drivers/spi/spi-atmel.c:631:2: warning:
	format ‘%x’ expects argument of type ‘unsigned int’,
	but argument 9 has type ‘dma_addr_t’ [-Wformat]
drivers/spi/spi-atmel.c: In function ‘atmel_spi_pdc_next_xfer’:
drivers/spi/spi-atmel.c:734:3: warning:
	format ‘%x’ expects argument of type ‘unsigned int’,
	but argument 7 has type ‘dma_addr_t’ [-Wformat]
drivers/spi/spi-atmel.c:734:3: warning:
	format ‘%x’ expects argument of type ‘unsigned int’,
	but argument 9 has type ‘dma_addr_t’ [-Wformat]
drivers/spi/spi-atmel.c:773:3: warning:
	format ‘%x’ expects argument of type ‘unsigned int’,
	but argument 7 has type ‘dma_addr_t’ [-Wformat]
drivers/spi/spi-atmel.c:773:3: warning:
	format ‘%x’ expects argument of type ‘unsigned int’,
	but argument 9 has type ‘dma_addr_t’ [-Wformat]

Signed-off-by: Emil Goode <emilgoode@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-31 17:55:00 +01:00
Christian Eggers
89c66ee890 spi: spi-davinci: Fix direction in dma_map_single()
Commit 048177ce3b (spi: spi-davinci:
convert to DMA engine API) introduced a regression: dma_map_single()
is called with direction DMA_FROM_DEVICE for rx and for tx.

Signed-off-by: Christian Eggers <ceggers@gmx.de>
Acked-by: Matt Porter <mporter@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org # v3.7.x+
2013-07-29 20:27:54 +01:00
Mark Brown
1729ce3441 spi/orion: Convert to devm_ioremap_resource()
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Andrew Lunn <andrew@lunn.ch>
2013-07-29 12:41:01 +01:00
Niels de Vos
27743e0bfd spi/imx: expose module alias for loading from device-tree
Enable auto loading by udev when spi-imx is compiled as a module.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-29 12:40:08 +01:00
Mark Brown
dd1053a93f spi/drivers: Enable build of drivers with COMPILE_TEST
Enable the build of drivers which don't have any real build time
dependency on their architecture or platform with COMPILE_TEST,
providing better build time coverage.

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-29 05:21:30 +01:00
Mark Brown
895248f851 spi/orion: Directly include linux/size.h
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-29 05:21:29 +01:00
Mark Brown
6c07ef298a spi/atmel: Annotate lock/unlock functions
Let checkers like sparse know that the locking imbalances are intentional
in these functions.

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-28 19:15:52 +01:00
Santosh Shilimkar
788489145b spi: davinci: Update configs to make it selectable on Keystone
Keystone2 SOCs share the SPI IP block with DaVinci based SOCs. Update
the config bits so that its usable on Keystone2 based SOCs.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-25 10:19:57 +01:00
Wolfram Sang
e5d950f024 spi: bcm2835: don't check resource with devm_ioremap_resource
devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-24 15:23:15 +01:00
Fabio Estevam
796305a2e2 spi: spi-mxs: Remove unneeded check for platform_get_resource()
As devm_ioremap_resource() is used on probe, there is no need to explicitly
check the return value from platform_get_resource(), as this is something that
devm_ioremap_resource() takes care by itself.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-22 10:51:13 +01:00
Sourav Poddar
078726ce6d driver: spi: Modify core to compute the message length
Make spi core calculate the message length while
populating the other transfer parameters.

Usecase, driver can use it to populate framelength filed in their
controller.

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-18 16:22:01 +01:00
Fabio Estevam
d60990d597 spi: spi-bitbang: Fix conversion of spi_bitbang_transfer_one()
Since commit 2025172e3 (spi/bitbang: Use core message pump), the following
kernel crash is seen:

Unable to handle kernel NULL pointer dereference at virtual address 0000000d
pgd = 80004000
[0000000d] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in:
CPU: 1 PID: 48 Comm: spi32766 Not tainted 3.11.0-rc1+ #4
task: bfa3e580 ti: bfb90000 task.ti: bfb90000
PC is at spi_bitbang_transfer_one+0x50/0x248
LR is at spi_bitbang_transfer_one+0x20/0x248
...

,and also the following build warning:

drivers/spi/spi-bitbang.c: In function 'spi_bitbang_start':
drivers/spi/spi-bitbang.c:436:31: warning: assignment from incompatible pointer type [enabled by default]

In order to fix it, we need to change the first parameter of
spi_bitbang_transfer_one() to 'struct spi_master *master'.

Tested on a mx6qsabrelite by succesfully probing a SPI NOR flash.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-17 23:34:27 +01:00
Dan Carpenter
9ca1273bb9 spi/xilinx: signedness issue checking platform_get_irq()
In xilinx_spi_probe() we use xspi->irq to store negative error codes so
it has to be signed.  We weren't going to use the upper bit any way so
this is fine.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-17 18:19:44 +01:00
Mark Brown
2025172e32 spi/bitbang: Use core message pump
Convert drivers using bitbang to use the core mesasge pump infrastructure,
saving some code and meaning that these drivers get to take advantage of
work done on improving the core implementation.

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-17 18:13:01 +01:00
H Hartley Sweeten
84ddb3c1df spi: spi-ep93xx: convert to the queued driver infrastructure
The SPI core provides infrastructure for standard message queueing. Use
that instead of handling it in the driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-17 11:10:59 +01:00
Boris BREZILLON
dfec4a6e42 spi: atmel: prepare clk before calling enable
Replace clk_enable/disable with clk_prepare_enable/disable_unprepare to
avoid common clk framework warnings.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-17 09:10:24 +01:00
Mark Brown
70f092a585 Merge remote-tracking branch 'spi/fix/xilinx' into spi-linus 2013-07-15 11:46:16 +01:00
Mark Brown
52bc441ae7 Merge remote-tracking branch 'spi/fix/setup' into spi-linus 2013-07-15 11:46:15 +01:00
Mark Brown
069e1572d7 Merge remote-tracking branch 'spi/fix/s3c64xx' into spi-linus 2013-07-15 11:46:14 +01:00
Michal Simek
7b3b7432ae spi/xilinx: Simplify irq allocation
Use devm_request_irq() for irq allocation which
simplify driver code.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:45:53 +01:00
Michal Simek
be3acdff94 spi/xilinx: Use of_property_read_u32 for reading value from node
It simplifies driver probing.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:45:53 +01:00
Michal Simek
ad3fdbcaf9 spi/xilinx: Clean ioremap calling
devm_ioremap_resource() automatically checks that
struct resource is initialized.
Also group platform_get_resource() and devm_ioremap_resource()
together.
And remove mem resource from struct xilinx_spi.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:45:53 +01:00
Michal Simek
5586c09e19 spi/xilinx: Remove CONFIG_OF from the driver
dev.of_node is in struct device all the time.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:45:53 +01:00
Mark Brown
7cb2abd05f spi/xilinx: Refer to platform device as pdev in probe() and remove()
This is a more traditional name and makes things a bit clearer when
referring to actual struct devices as we do frequently during probe().

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
2013-07-15 11:45:52 +01:00
Mark Brown
d81c0bbbf8 spi/xilinx: Remove remains of of_platform device registration
In the past there used to be a separate platform device type for device
tree systems so the probe and removal functions were split into generic
and bus sections. Since this is no longer the case simplify the code (and
remove some unprototyped exports) by factoring everything into the bus
probe() and remove().

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:45:52 +01:00
Mark Brown
c40537d008 spi/xilinx: Convert to devm_ioremap_resource()
Saves code and reduces the possibility of error.

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:45:52 +01:00
Mika Westerberg
1de7061253 spi/pxa2xx: enable DMA on newer Intel LPSS silicon
There is an additional bit in the Intel LPSS SPI private registers that
needs to be set in order to be able to use DMA with the SPI controller.
Enable this as well.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:42:23 +01:00
Mark Brown
2d0c6148e3 spi/omap-100k: Convert to module_platform_driver()
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:39:31 +01:00
Mark Brown
13cd19e855 spi/omap-100k: Prepare and unprepare clocks
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:39:31 +01:00
Mark Brown
022a9412ec spi/omap-100k: Convert to devm_clk_get()
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:39:30 +01:00
Mark Brown
da60b85506 spi/omap-100k: Convert to use core message queue implementation
Saves some code duplication and gets us the benefits of any improvements
in the core code.

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:39:30 +01:00
Mark Brown
e8153ab3d7 spi/omap-100k: Factor message transfer function out of work queue
In preparation for removing the custom workqueue.

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:39:30 +01:00
Mark Brown
69ea672a13 spi/omap-100k: Use core functionality to check validity of transfers
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:39:30 +01:00
Mark Brown
407d600f1f spi/omap-100k: Remove empty reset function
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:39:29 +01:00
Fabio Estevam
8498bce934 spi: spi-mxs: Check the return value from stmp_reset_block()
stmp_reset_block() may fail, so let's check its return value and propagate it in
the case of error.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:38:42 +01:00
Fabio Estevam
9c4a39afaa spi: spi-mxs: Check the return value from clk_prepare_enable()
clk_prepare_enable() may fail, so let's check its return value and propagate it
in the case of error.

While at it, rename 'out_free_dma' to 'out_disable_clk' so that it can properly
describe its purpose.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:38:42 +01:00
Fabio Estevam
e11933f626 spi: spi-mxs: Fix the error path sequence
On mxs_spi_probe() the dma channels are requested prior to enabling the SSP
clock, so in the error path we should disable the SSP clock first and
release the DMA channels later.

Same logic applies in mxs_spi_remove().

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:38:41 +01:00
Fabio Estevam
83174626cc spi: spi-imx: Check the return value from clk_prepare_enable()
clk_prepare_enable() may fail, so let's check its return value and propagate it
in the case of error.

While at it, fix the order of clk_disable_unprepare calls: clk_ipg should be
disabled first, followed by clk_per.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:37:56 +01:00
Fabio Estevam
130b82c047 spi: spi-imx: Use devm functions
Using devm functions can make the code smaller and cleaner.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:37:56 +01:00
H Hartley Sweeten
f7ef1da9e2 spi: spi-ep93xx: move the clock divider calcs into ep93xx_spi_chip_setup()
The divider values stored in the per chip data are only used to set the
registers in the hardware to generate the desired SPI clock. Since these
are calculated per transfer based on the t->speed_hz there is no reason
keep them in the per chip data.

Move the ep93xx_spi_calc_divisors() call into ep93xx_spi_chip_setup()
and return the dividers thru pointers. Remove the divider values from
the per chip data structure.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:37:14 +01:00
H Hartley Sweeten
22c1b69ea8 spi: spi-ep93xx: don't bother calculating the divisors in ep93xx_spi_setup()
The divisors needed to generate the SPI clock are calculated per
transfer based on the t->speed_hz. There is no reason to calculate
them in ep93xx_spi_setup().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:37:14 +01:00
H Hartley Sweeten
e6eb8d9bb7 spi: spi-ep93xx: use devm_clk_get()
Use devm_clk_get() so that the clk_put() happens automatically when
the last reference to this driver is dropped.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:37:14 +01:00
H Hartley Sweeten
d9b65dfd44 spi: spi-ep93xx: remove 'dss' from per chip private data
This value is only needed to set the bits per word for each transfer
of a message. There is no reason to set the value in ep93xx_spi_enable()
because ep93xx_spi_process_transfer() sets it again for each transfer.

Just pass the t->bits_per_word directly to ep93xx_spi_chip_setup() in
ep93xx_spi_process_transfer() and remove 'dss' from the per chip private
data.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:37:14 +01:00
H Hartley Sweeten
b2d185edba spi: spi-ep93xx: remove dev_err() for kzalloc() failure
The kzalloc() failure will have already output a message.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:37:14 +01:00
H Hartley Sweeten
48a7776e98 spi: spi-ep93xx: get platform resources early in (*probe)
Get the platform resources early in the (*probe) to minimize the number
of goto's in the error path.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:37:13 +01:00
H Hartley Sweeten
701c3587ee spi: spi-ep93xx: remove bits_per_word() helper
Check t->bits_per_word directly and remove the inline helper function.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:37:13 +01:00
H Hartley Sweeten
8d7586bda0 spi: spi-ep93xx: use read,write instead of __raw_* variants
The memory resource used by this driver is ioremap()'d and the normal
read,write calls can be used instead of the __raw_* variants.

Also, remove the inline tag on the helper functions and let the compiler
decide if they are inlined.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:37:13 +01:00
H Hartley Sweeten
4870c2170d spi: spi-ep93xx: always handle transfer specific settings
__spi_async(), which starts every SPI message transfer, initializes
the bits_per_word and max speed for every transfer in the message.
Since the conditional test in ep93xx_spi_process_transfer() will
always succeed just remove it and always call ep93xx_spi_chip_setup()
to configure the hardware for each transfer in the message.

Remove the redundant ep93xx_spi_chp_setup() in ep93xx_spi_process_transfer()
which just initializes the hardware to the "default" based on the SPI
device.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:37:13 +01:00
Mark Brown
c8b94d8492 spi/clps711x: Remove unneeded devm_ deallocations
The whole point of devm is that it'll do these automatically.

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:36:33 +01:00
Mark Brown
24a0013a04 spi: More sanity checks for transfers
Check that transfers are non-empty and that there is a completion for
them.

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:34:51 +01:00
Mark Brown
a2fd4f9fa3 spi: Support transfer speed checking in the core
Allow drivers to avoid implementing their own checks for simple rates by
specifying the limits in the master structure.

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:34:51 +01:00
Mark Brown
838af50584 spi/rspi: Add missing dependency on DMAE
The filter function used by the rspi driver is part of the DMAE controller
driver so if the DMA controller driver is somehow disabled then the rspi
driver will fail to build.

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:34:00 +01:00
Scott Jiang
fa4bd4f1ad spi: add spi controller v3 master driver for Blackfin
New spi controller(version 3) is integrated into Blackfin
60x processor. Comparing to bf5xx spi controller, we support
32 bits word size and independent receive and transmit DMA
channels now. Also mode 0 and 2 (CPHA = 0) can get fully
supported becasue cs line may be controlled by the software.

Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:30:28 +01:00
Mark Brown
91b3085867 spi/bitbang: Factor out message transfer from message pump loop
In order to make it easier to convert to transfer_one_message() lift the
code that does the actual message transfer out of the work function that
implements the message pump. This should have no functional impact, it's
just a simple code motion patch.

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:29:53 +01:00
Mark Brown
874b315856 spi/bitbang: Unexport spi_bitbang_transfer()
Currently no drivers use the ability to override spi_bitbang_transfer()
and if any started this would make it harder to convert the bitbang code
to use transfer_one_message() so remove the export in order to prevent
anyone starting.

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-15 11:29:52 +01:00
Linus Torvalds
d144746478 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "MIPS updates:

   - All the things that didn't make 3.10.
   - Removes the Windriver PPMC platform.  Nobody will miss it.
   - Remove a workaround from kernel/irq/irqdomain.c which was there
     exclusivly for MIPS.  Patch by Grant Likely.
   - More small improvments for the SEAD 3 platform
   - Improvments on the BMIPS / SMP support for the BCM63xx series.
   - Various cleanups of dead leftovers.
   - Platform support for the Cavium Octeon-based EdgeRouter Lite.

  Two large KVM patchsets didn't make it for this pull request because
  their respective authors are vacationing"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (124 commits)
  MIPS: Kconfig: Add missing MODULES dependency to VPE_LOADER
  MIPS: BCM63xx: CLK: Add dummy clk_{set,round}_rate() functions
  MIPS: SEAD3: Disable L2 cache on SEAD-3.
  MIPS: BCM63xx: Enable second core SMP on BCM6328 if available
  MIPS: BCM63xx: Add SMP support to prom.c
  MIPS: define write{b,w,l,q}_relaxed
  MIPS: Expose missing pci_io{map,unmap} declarations
  MIPS: Malta: Update GCMP detection.
  Revert "MIPS: make CAC_ADDR and UNCAC_ADDR account for PHYS_OFFSET"
  MIPS: APSP: Remove <asm/kspd.h>
  SSB: Kconfig: Amend SSB_EMBEDDED dependencies
  MIPS: microMIPS: Fix improper definition of ISA exception bit.
  MIPS: Don't try to decode microMIPS branch instructions where they cannot exist.
  MIPS: Declare emulate_load_store_microMIPS as a static function.
  MIPS: Fix typos and cleanup comment
  MIPS: Cleanup indentation and whitespace
  MIPS: BMIPS: support booting from physical CPU other than 0
  MIPS: Only set cpu_has_mmips if SYS_SUPPORTS_MICROMIPS
  MIPS: GIC: Fix gic_set_affinity infinite loop
  MIPS: Don't save/restore OCTEON wide multiplier state on syscalls.
  ...
2013-07-13 14:52:21 -07:00
Stephen Warren
103ccee4ef spi: revert master->setup function removal for altera and nuc900
Commit 24778be "spi: convert drivers to use bits_per_word_mask" removed
what appeared to be redundant code from many drivers. However, it
appears that in the spi-bitbang case, these functions are required by
the spi-bitbang core, even if they don't do anything. Restore them.

For 3.12, the spi-bitbang core should be adjusted not to require these
callbacks to exist if they don't need to do anything.

This is the equivalent of Michal Simek's patch "spi/xilinx: Revert
master->setup function removal", applied to other affected drivers.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-11 11:35:25 +01:00
Michal Simek
e076195390 spi/xilinx: Revert master->setup function removal
master->setup() must be initialized to be able
to successfully run spi_bitbang_start()
and satisfy if/else logic there.

"spi: convert drivers to use bits_per_word_mask"
(sha1: 24778be20f)

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-10 09:45:48 +01:00
Linus Torvalds
7f0ef0267e Merge branch 'akpm' (updates from Andrew Morton)
Merge first patch-bomb from Andrew Morton:
 - various misc bits
 - I'm been patchmonkeying ocfs2 for a while, as Joel and Mark have been
   distracted.  There has been quite a bit of activity.
 - About half the MM queue
 - Some backlight bits
 - Various lib/ updates
 - checkpatch updates
 - zillions more little rtc patches
 - ptrace
 - signals
 - exec
 - procfs
 - rapidio
 - nbd
 - aoe
 - pps
 - memstick
 - tools/testing/selftests updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (445 commits)
  tools/testing/selftests: don't assume the x bit is set on scripts
  selftests: add .gitignore for kcmp
  selftests: fix clean target in kcmp Makefile
  selftests: add .gitignore for vm
  selftests: add hugetlbfstest
  self-test: fix make clean
  selftests: exit 1 on failure
  kernel/resource.c: remove the unneeded assignment in function __find_resource
  aio: fix wrong comment in aio_complete()
  drivers/w1/slaves/w1_ds2408.c: add magic sequence to disable P0 test mode
  drivers/memstick/host/r592.c: convert to module_pci_driver
  drivers/memstick/host/jmb38x_ms: convert to module_pci_driver
  pps-gpio: add device-tree binding and support
  drivers/pps/clients/pps-gpio.c: convert to module_platform_driver
  drivers/pps/clients/pps-gpio.c: convert to devm_* helpers
  drivers/parport/share.c: use kzalloc
  Documentation/accounting/getdelays.c: avoid strncpy in accounting tool
  aoe: update internal version number to v83
  aoe: update copyright date
  aoe: perform I/O completions in parallel
  ...
2013-07-03 17:12:13 -07:00
Kees Cook
f170168b9a drivers: avoid parsing names as kthread_run() format strings
Calling kthread_run with a single name parameter causes it to be handled
as a format string. Many callers are passing potentially dynamic string
content, so use "%s" in those cases to avoid any potential accidents.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-03 16:07:41 -07:00
Linus Torvalds
f991fae5c6 Power management and ACPI updates for 3.11-rc1
- Hotplug changes allowing device hot-removal operations to fail
   gracefully (instead of crashing the kernel) if they cannot be
   carried out completely.  From Rafael J Wysocki and Toshi Kani.
 
 - Freezer update from Colin Cross and Mandeep Singh Baines targeted
   at making the freezing of tasks a bit less heavy weight operation.
 
 - cpufreq resume fix from Srivatsa S Bhat for a regression introduced
   during the 3.10 cycle causing some cpufreq sysfs attributes to
   return wrong values to user space after resume.
 
 - New freqdomain_cpus sysfs attribute for the acpi-cpufreq driver to
   provide information previously available via related_cpus from
   Lan Tianyu.
 
 - cpufreq fixes and cleanups from Viresh Kumar, Jacob Shin,
   Heiko Stübner, Xiaoguang Chen, Ezequiel Garcia, Arnd Bergmann, and
   Tang Yuantian.
 
 - Fix for an ACPICA regression causing suspend/resume issues to
   appear on some systems introduced during the 3.4 development cycle
   from Lv Zheng.
 
 - ACPICA fixes and cleanups from Bob Moore, Tomasz Nowicki, Lv Zheng,
   Chao Guan, and Zhang Rui.
 
 - New cupidle driver for Xilinx Zynq processors from Michal Simek.
 
 - cpuidle fixes and cleanups from Daniel Lezcano.
 
 - Changes to make suspend/resume work correctly in Xen guests from
   Konrad Rzeszutek Wilk.
 
 - ACPI device power management fixes and cleanups from Fengguang Wu
   and Rafael J Wysocki.
 
 - ACPI documentation updates from Lv Zheng, Aaron Lu and Hanjun Guo.
 
 - Fix for the IA-64 issue that was the reason for reverting commit
   9f29ab1 and updates of the ACPI scan code from Rafael J Wysocki.
 
 - Mechanism for adding CMOS RTC address space handlers from Lan Tianyu
   (to allow some EC-related breakage to be fixed on some systems).
 
 - Spec-compliant implementation of acpi_os_get_timer() from
   Mika Westerberg.
 
 - Modification of do_acpi_find_child() to execute _STA in order to
   to avoid situations in which a pointer to a disabled device object
   is returned instead of an enabled one with the same _ADR value.
   From Jeff Wu.
 
 - Intel BayTrail PCH (Platform Controller Hub) support for the ACPI
   Intel Low-Power Subsystems (LPSS) driver and modificaions of that
   driver to work around a couple of known BIOS issues from
   Mika Westerberg and Heikki Krogerus.
 
 - EC driver fix from Vasiliy Kulikov to make it use get_user() and
   put_user() instead of dereferencing user space pointers blindly.
 
 - Assorted ACPI code cleanups from Bjorn Helgaas, Nicholas Mazzuca and
   Toshi Kani.
 
 - Modification of the "runtime idle" helper routine to take the return
   values of the callbacks executed by it into account and to call
   rpm_suspend() if they return 0, which allows some code bloat
   reduction to be done, from Rafael J Wysocki and Alan Stern.
 
 - New trace points for PM QoS from Sahara <keun-o.park@windriver.com>.
 
 - PM QoS documentation update from Lan Tianyu.
 
 - Assorted core PM code cleanups and changes from Bernie Thompson,
   Bjorn Helgaas, Julius Werner, and Shuah Khan.
 
 - New devfreq driver for the Exynos5-bus device from Abhilash Kesavan.
 
 - Minor devfreq cleanups, fixes and MAINTAINERS update from
   MyungJoo Ham, Abhilash Kesavan, Paul Bolle, Rajagopal Venkat, and
   Wei Yongjun.
 
 - OMAP Adaptive Voltage Scaling (AVS) SmartReflex voltage control
   driver updates from Andrii Tseglytskyi and Nishanth Menon.
 
 /
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Merge tag 'pm+acpi-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI updates from Rafael Wysocki:
 "This time the total number of ACPI commits is slightly greater than
  the number of cpufreq commits, but Viresh Kumar (who works on cpufreq)
  remains the most active patch submitter.

  To me, the most significant change is the addition of offline/online
  device operations to the driver core (with the Greg's blessing) and
  the related modifications of the ACPI core hotplug code.  Next are the
  freezer updates from Colin Cross that should make the freezing of
  tasks a bit less heavy weight.

  We also have a couple of regression fixes, a number of fixes for
  issues that have not been identified as regressions, two new drivers
  and a bunch of cleanups all over.

  Highlights:

   - Hotplug changes to support graceful hot-removal failures.

     It sometimes is necessary to fail device hot-removal operations
     gracefully if they cannot be carried out completely.  For example,
     if memory from a memory module being hot-removed has been allocated
     for the kernel's own use and cannot be moved elsewhere, it's
     desirable to fail the hot-removal operation in a graceful way
     rather than to crash the kernel, but currenty a success or a kernel
     crash are the only possible outcomes of an attempted memory
     hot-removal.  Needless to say, that is not a very attractive
     alternative and it had to be addressed.

     However, in order to make it work for memory, I first had to make
     it work for CPUs and for this purpose I needed to modify the ACPI
     processor driver.  It's been split into two parts, a resident one
     handling the low-level initialization/cleanup and a modular one
     playing the actual driver's role (but it binds to the CPU system
     device objects rather than to the ACPI device objects representing
     processors).  That's been sort of like a live brain surgery on a
     patient who's riding a bike.

     So this is a little scary, but since we found and fixed a couple of
     regressions it caused to happen during the early linux-next testing
     (a month ago), nobody has complained.

     As a bonus we remove some duplicated ACPI hotplug code, because the
     ACPI-based CPU hotplug is now going to use the common ACPI hotplug
     code.

   - Lighter weight freezing of tasks.

     These changes from Colin Cross and Mandeep Singh Baines are
     targeted at making the freezing of tasks a bit less heavy weight
     operation.  They reduce the number of tasks woken up every time
     during the freezing, by using the observation that the freezer
     simply doesn't need to wake up some of them and wait for them all
     to call refrigerator().  The time needed for the freezer to decide
     to report a failure is reduced too.

     Also reintroduced is the check causing a lockdep warining to
     trigger when try_to_freeze() is called with locks held (which is
     generally unsafe and shouldn't happen).

   - cpufreq updates

     First off, a commit from Srivatsa S Bhat fixes a resume regression
     introduced during the 3.10 cycle causing some cpufreq sysfs
     attributes to return wrong values to user space after resume.  The
     fix is kind of fresh, but also it's pretty obvious once Srivatsa
     has identified the root cause.

     Second, we have a new freqdomain_cpus sysfs attribute for the
     acpi-cpufreq driver to provide information previously available via
     related_cpus.  From Lan Tianyu.

     Finally, we fix a number of issues, mostly related to the
     CPUFREQ_POSTCHANGE notifier and cpufreq Kconfig options and clean
     up some code.  The majority of changes from Viresh Kumar with bits
     from Jacob Shin, Heiko Stübner, Xiaoguang Chen, Ezequiel Garcia,
     Arnd Bergmann, and Tang Yuantian.

   - ACPICA update

     A usual bunch of updates from the ACPICA upstream.

     During the 3.4 cycle we introduced support for ACPI 5 extended
     sleep registers, but they are only supposed to be used if the
     HW-reduced mode bit is set in the FADT flags and the code attempted
     to use them without checking that bit.  That caused suspend/resume
     regressions to happen on some systems.  Fix from Lv Zheng causes
     those registers to be used only if the HW-reduced mode bit is set.

     Apart from this some other ACPICA bugs are fixed and code cleanups
     are made by Bob Moore, Tomasz Nowicki, Lv Zheng, Chao Guan, and
     Zhang Rui.

   - cpuidle updates

     New driver for Xilinx Zynq processors is added by Michal Simek.

     Multidriver support simplification, addition of some missing
     kerneldoc comments and Kconfig-related fixes come from Daniel
     Lezcano.

   - ACPI power management updates

     Changes to make suspend/resume work correctly in Xen guests from
     Konrad Rzeszutek Wilk, sparse warning fix from Fengguang Wu and
     cleanups and fixes of the ACPI device power state selection
     routine.

   - ACPI documentation updates

     Some previously missing pieces of ACPI documentation are added by
     Lv Zheng and Aaron Lu (hopefully, that will help people to
     uderstand how the ACPI subsystem works) and one outdated doc is
     updated by Hanjun Guo.

   - Assorted ACPI updates

     We finally nailed down the IA-64 issue that was the reason for
     reverting commit 9f29ab11dd ("ACPI / scan: do not match drivers
     against objects having scan handlers"), so we can fix it and move
     the ACPI scan handler check added to the ACPI video driver back to
     the core.

     A mechanism for adding CMOS RTC address space handlers is
     introduced by Lan Tianyu to allow some EC-related breakage to be
     fixed on some systems.

     A spec-compliant implementation of acpi_os_get_timer() is added by
     Mika Westerberg.

     The evaluation of _STA is added to do_acpi_find_child() to avoid
     situations in which a pointer to a disabled device object is
     returned instead of an enabled one with the same _ADR value.  From
     Jeff Wu.

     Intel BayTrail PCH (Platform Controller Hub) support is added to
     the ACPI driver for Intel Low-Power Subsystems (LPSS) and that
     driver is modified to work around a couple of known BIOS issues.
     Changes from Mika Westerberg and Heikki Krogerus.

     The EC driver is fixed by Vasiliy Kulikov to use get_user() and
     put_user() instead of dereferencing user space pointers blindly.

     Code cleanups are made by Bjorn Helgaas, Nicholas Mazzuca and Toshi
     Kani.

   - Assorted power management updates

     The "runtime idle" helper routine is changed to take the return
     values of the callbacks executed by it into account and to call
     rpm_suspend() if they return 0, which allows us to reduce the
     overall code bloat a bit (by dropping some code that's not
     necessary any more after that modification).

     The runtime PM documentation is updated by Alan Stern (to reflect
     the "runtime idle" behavior change).

     New trace points for PM QoS are added by Sahara
     (<keun-o.park@windriver.com>).

     PM QoS documentation is updated by Lan Tianyu.

     Code cleanups are made and minor issues are addressed by Bernie
     Thompson, Bjorn Helgaas, Julius Werner, and Shuah Khan.

   - devfreq updates

     New driver for the Exynos5-bus device from Abhilash Kesavan.

     Minor cleanups, fixes and MAINTAINERS update from MyungJoo Ham,
     Abhilash Kesavan, Paul Bolle, Rajagopal Venkat, and Wei Yongjun.

   - OMAP power management updates

     Adaptive Voltage Scaling (AVS) SmartReflex voltage control driver
     updates from Andrii Tseglytskyi and Nishanth Menon."

* tag 'pm+acpi-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (162 commits)
  cpufreq: Fix cpufreq regression after suspend/resume
  ACPI / PM: Fix possible NULL pointer deref in acpi_pm_device_sleep_state()
  PM / Sleep: Warn about system time after resume with pm_trace
  cpufreq: don't leave stale policy pointer in cdbs->cur_policy
  acpi-cpufreq: Add new sysfs attribute freqdomain_cpus
  cpufreq: make sure frequency transitions are serialized
  ACPI: implement acpi_os_get_timer() according the spec
  ACPI / EC: Add HP Folio 13 to ec_dmi_table in order to skip DSDT scan
  ACPI: Add CMOS RTC Operation Region handler support
  ACPI / processor: Drop unused variable from processor_perflib.c
  cpufreq: tegra: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: s3c64xx: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: omap: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: imx6q: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: exynos: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: dbx500: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: davinci: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: arm-big-little: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: powernow-k8: call CPUFREQ_POSTCHANGE notfier in error cases
  cpufreq: pcc: call CPUFREQ_POSTCHANGE notfier in error cases
  ...
2013-07-03 14:35:40 -07:00
Linus Torvalds
750b2d7b93 spi: Updates for v3.11
A fairly quiet release for the SPI subsystem, the standout changes
 being:
 
 - Core support for implementing bits per word constraints implemented by
   Stephen Warren, factoring some code out of drivers.
 - Addition of polling mode support for the s3c64xx driver as some newer
   Exynos systems have taken the unusual step of removing interrupt
   support.
 - Use of the in-IP FIFO and generic dmaengine support for the OMAP2
   driver, providing improved performance.
 - Conversion of the mpc512x driver to use the core message queue
   infrastructure.
 
 The nicest thing being that all the factoring out into common code leads
 to a negative diffstat overall.
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Merge tag 'spi-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "A fairly quiet release for the SPI subsystem, the standout changes
  being:

   - Core support for implementing bits per word constraints implemented
     by Stephen Warren, factoring some code out of drivers.

   - Addition of polling mode support for the s3c64xx driver as some
     newer Exynos systems have taken the unusual step of removing
     interrupt support.

   - Use of the in-IP FIFO and generic dmaengine support for the OMAP2
     driver, providing improved performance.

   - Conversion of the mpc512x driver to use the core message queue
     infrastructure.

  The nicest thing being that all the factoring out into common code
  leads to a negative diffstat overall."

* tag 'spi-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (42 commits)
  spi/s3c64xx: Rely on the compiler eliminating the OF ID table
  spi: s3c64xx: Added support for exynos5440 spi
  spi: s3c64xx: Added provision for dedicated cs pin
  spi: omap2-mcspi: add generic DMA request support to the DT binding
  spi: omap2-mcspi: convert to dma_request_slave_channel_compat()
  spi/s3c64xx: Make wait_for_timeout() function name less generic
  spi: s3c64xx: added support for polling mode
  spi: omap2-mcspi: Add FIFO buffer support
  spi: omap2-mcspi: Move bytes per word calculation to the function
  spi: spi-xilinx: cleanup a check in xilinx_spi_txrx_bufs()
  spi: spi-nuc900: Remove redundant platform_set_drvdata()
  spi: spi-fsl-lib: Make mpc8xxx_spi_work static
  spi: spi-topcliff-pch: Fix sparse warnings
  spi: spi-xilinx: Remove redundant platform_set_drvdata()
  spi: spi-xilinx: Add run run-time endian detection
  spi: mpc512x: use the SPI subsystem's message queue
  spi: mpc512x: improve throughput in the RX/TX func
  spi: mpc512x: minor prep before feature change
  spi: atmel: convert to dma_request_slave_channel_compat()
  spi: sirf: avoid uninitialized-use warning
  ...
2013-07-03 11:51:05 -07:00
Linus Torvalds
3dbde57ad9 Pin control changes for the v3.11 kernel cycle:
- A large slew of improvements of the Genric pin configuration
   support, and deployment in four different platforms:
   Rockchip, Super-H PFC, ABx500 and TZ1090. Support BIAS_BUS_HOLD,
   get device tree parsing and debugfs support into shape.
 
 - We also have device tree support with generic naming conventions
   for the generic pin configuration.
 
 - Delete the unused and confusing direct pinconf API. Now state
   transitions is *the* way to control pins and multiplexing.
 
 - New drivers for Rockchip, TZ1090, and TZ1090 PDC.
 
 - Two pin control states related to power management are now
   handled in the device core: "sleep" and "idle", removing a lot
   of boilerplate code in drivers. We do not yet know if this is
   the final word for pin PM, but it already make things a lot
   easier to handle.
 
 - Handle sparse GPIO ranges passing a list of disparate pins, and
   utilize these in the new BayTrail (x86 Atom SoC) driver.
 
 - Make the sunxi (AllWinner) driver handle external interrupts.
 
 - Make it possible for pinctrl-single to handle the case where
   several pins are managed by a single register, and augment it to
   handle sleep modes.
 
 - Cleanups and improvements for the abx500 drivers.
 
 - Move Sirf pin control drivers to their own directory, support
   save/restore of context and add support for the SiRFatlas6 SoC.
 
 - PMU muxing for the Dove pinctrl driver.
 
 - Finalization and support for VF610 in the i.MX6 pinctrl driver.
 
 - Smoothen out various Exynos rough edges.
 
 - Generic cleanups of various kinds.
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Merge tag 'pinctrl-for-v3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control changes from Linus Walleij:

 - A large slew of improvements of the Genric pin configuration support,
   and deployment in four different platforms: Rockchip, Super-H PFC,
   ABx500 and TZ1090.  Support BIAS_BUS_HOLD, get device tree parsing
   and debugfs support into shape.

 - We also have device tree support with generic naming conventions for
   the generic pin configuration.

 - Delete the unused and confusing direct pinconf API.  Now state
   transitions is *the* way to control pins and multiplexing.

 - New drivers for Rockchip, TZ1090, and TZ1090 PDC.

 - Two pin control states related to power management are now handled in
   the device core: "sleep" and "idle", removing a lot of boilerplate
   code in drivers.  We do not yet know if this is the final word for
   pin PM, but it already make things a lot easier to handle.

 - Handle sparse GPIO ranges passing a list of disparate pins, and
   utilize these in the new BayTrail (x86 Atom SoC) driver.

 - Make the sunxi (AllWinner) driver handle external interrupts.

 - Make it possible for pinctrl-single to handle the case where several
   pins are managed by a single register, and augment it to handle sleep
   modes.

 - Cleanups and improvements for the abx500 drivers.

 - Move Sirf pin control drivers to their own directory, support
   save/restore of context and add support for the SiRFatlas6 SoC.

 - PMU muxing for the Dove pinctrl driver.

 - Finalization and support for VF610 in the i.MX6 pinctrl driver.

 - Smoothen out various Exynos rough edges.

 - Generic cleanups of various kinds.

* tag 'pinctrl-for-v3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (82 commits)
  pinctrl: vt8500: wmt: remove redundant dev_err call in wmt_pinctrl_probe()
  pinctrl: remove bindings for pinconf options needing more thought
  pinctrl: remove slew-rate parameter from tz1090
  pinctrl: set unit for debounce time pinconfig to usec
  pinctrl: more clarifications for generic pull configs
  pinctrl: rip out the direct pinconf API
  pinctrl-tz1090-pdc: add TZ1090 PDC pinctrl driver
  pinctrl-tz1090: add TZ1090 pinctrl driver
  pinctrl: samsung: Staticize drvdata_list
  pinctrl: rockchip: Add missing irq_gc_unlock() call before return error
  pinctrl: abx500: rework error path
  pinctrl: abx500: suppress hardcoded value
  pinctrl: abx500: factorize code
  pinctrl: abx500: fix abx500_gpio_get()
  pinctrl: abx500: fix abx500_pin_config_set()
  pinctrl: abx500: Add device tree support
  sh-pfc: Guard DT parsing with #ifdef CONFIG_OF
  pinctrl: add Intel BayTrail GPIO/pinctrl support
  pinctrl: fix pinconf_ops::pin_config_dbg_parse_modify kerneldoc
  pinctrl: Staticize local symbols
  ...

Conflicts:
	drivers/net/ethernet/ti/davinci_mdio.c
	drivers/pinctrl/Makefile
2013-07-03 11:48:03 -07:00
Linus Torvalds
3883cbb6c1 ARM SoC specific changes
These changes are all to SoC-specific code, a total of 33 branches on
 17 platforms were pulled into this. Like last time, Renesas sh-mobile
 is now the platform with the most changes, followed by OMAP and EXYNOS.
 
 Two new platforms, TI Keystone and Rockchips RK3xxx are added in
 this branch, both containing almost no platform specific code at all,
 since they are using generic subsystem interfaces for clocks, pinctrl,
 interrupts etc. The device drivers are getting merged through the
 respective subsystem maintainer trees.
 
 One more SoC (u300) is now multiplatform capable and several others
 (shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
 towards that goal with this series but need more work.
 
 Also noteworthy is the work on PCI here, which is traditionally part of
 the SoC specific code. With the changes done by Thomas Petazzoni, we can
 now more easily have PCI host controller drivers as loadable modules and
 keep them separate from the platform code in drivers/pci/host. This has
 already led to the discovery that three platforms (exynos, spear and imx)
 are actually using an identical PCIe host controller and will be able
 to share a driver once support for spear and imx is added.
 
 Conflicts:
 * asm/glue-proc.h has one CPU type getting added that conflicts
   with another addition in 3.10-rc7
 * Simple context changes in arch/arm/Makefile and arch/arm/Kconfig
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Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC specific changes from Arnd Bergmann:
 "These changes are all to SoC-specific code, a total of 33 branches on
  17 platforms were pulled into this.  Like last time, Renesas sh-mobile
  is now the platform with the most changes, followed by OMAP and
  EXYNOS.

  Two new platforms, TI Keystone and Rockchips RK3xxx are added in this
  branch, both containing almost no platform specific code at all, since
  they are using generic subsystem interfaces for clocks, pinctrl,
  interrupts etc.  The device drivers are getting merged through the
  respective subsystem maintainer trees.

  One more SoC (u300) is now multiplatform capable and several others
  (shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
  towards that goal with this series but need more work.

  Also noteworthy is the work on PCI here, which is traditionally part
  of the SoC specific code.  With the changes done by Thomas Petazzoni,
  we can now more easily have PCI host controller drivers as loadable
  modules and keep them separate from the platform code in
  drivers/pci/host.  This has already led to the discovery that three
  platforms (exynos, spear and imx) are actually using an identical PCIe
  host controller and will be able to share a driver once support for
  spear and imx is added."

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (480 commits)
  ARM: integrator: let pciv3 use mem/premem from device tree
  ARM: integrator: set local side PCI addresses right
  ARM: dts: Add pcie controller node for exynos5440-ssdk5440
  ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoC
  ARM: EXYNOS: Enable PCIe support for Exynos5440
  pci: Add PCIe driver for Samsung Exynos
  ARM: OMAP5: voltagedomain data: remove temporary OMAP4 voltage data
  ARM: keystone: Move CPU bringup code to dedicated asm file
  ARM: multiplatform: always pick one CPU type
  ARM: imx: select syscon for IMX6SL
  ARM: keystone: select ARM_ERRATA_798181 only for SMP
  ARM: imx: Synertronixx scb9328 needs to select SOC_IMX1
  ARM: OMAP2+: AM43x: resolve SMP related build error
  dmaengine: edma: enable build for AM33XX
  ARM: edma: Add EDMA crossbar event mux support
  ARM: edma: Add DT and runtime PM support to the private EDMA API
  dmaengine: edma: Add TI EDMA device tree binding
  arm: add basic support for Rockchip RK3066a boards
  arm: add debug uarts for rockchip rk29xx and rk3xxx series
  arm: Add basic clocks for Rockchip rk3066a SoCs
  ...
2013-07-02 13:43:38 -07:00
Linus Torvalds
22237d5a58 ARM SoC non-cricitical bug fixes
These are various bug fixes that were not considered important enough
 for merging into 3.10. The majority of the ARM fixes are for the OMAP
 and at91 platforms, and there is another set of bug fixes for device
 drivers that resolve 'randconfig' build errors and that the subsystem
 maintainers either did not pick up or preferred to get merged through
 the arm-soc tree.
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Merge tag 'fixes-non-critical-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC non-cricitical bug fixes from Arnd Bergmann:
 "These are various bug fixes that were not considered important enough
  for merging into 3.10.

  The majority of the ARM fixes are for the OMAP and at91 platforms, and
  there is another set of bug fixes for device drivers that resolve
  'randconfig' build errors and that the subsystem maintainers either
  did not pick up or preferred to get merged through the arm-soc tree."

* tag 'fixes-non-critical-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits)
  ARM: at91/PMC: use at91_usb_rate() for UTMI PLL
  ARM: at91/PMC: fix at91sam9n12 USB FS init
  ARM: at91/PMC: at91sam9n12 family has a PLLB
  ARM: at91/PMC: sama5d3 family doesn't have a PLLB
  ARM: tegra: fix section mismatch in tegra_pmc_parse_dt
  ARM: mxs: don't select HAVE_PWM
  ARM: mxs: stub out mxs_pm_init for !CONFIG_PM
  cpuidle: calxeda: select ARM_CPU_SUSPEND
  ARM: mvebu: fix length of ethernet registers in mv78260 dtsi
  ARM: at91: cpuidle: Fix target_residency
  ARM: at91: fix at91_extern_irq usage for non-dt boards
  ARM: sirf: use CONFIG_SIRF rather than CONFIG_PRIMA2 where necessary
  clocksource: kona: adapt to CLOCKSOURCE_OF_DECLARE change
  X.509: do not emit any informational output
  mtd: omap2: allow bulding as a module
  [SCSI] nsp32: use mdelay instead of large udelay constants
  hwrng: bcm2835: fix MODULE_LICENSE tag
  ARM: at91: Change the internal SRAM memory type MT_MEMORY_NONCACHED
  ARM: at91: Fix link breakage when !CONFIG_PHYLIB
  MAINTAINERS: Add exynos filename match to ARM/S5P EXYNOS ARM ARCHITECTURES
  ...
2013-07-02 13:24:47 -07:00
Girish K S
d96760f98e spi: s3c64xx: add missing check for polling mode
After the patch "spi/s3c64xx: Fix non-dmaengine usage"
with commit id 563b444e33
submitted by Mark Brown, the spi device detection in polling
mode breaks. This revealed the missing check for polling during
dma prepare. This patch adds the missing check.

Signed-off-by: Girish K S <ks.giri@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-02 19:02:14 +01:00
Rafael J. Wysocki
e52cff8bdd Merge branch 'pm-assorted'
* pm-assorted:
  PM / QoS: Add pm_qos and dev_pm_qos to events-power.txt
  PM / QoS: Add dev_pm_qos_request tracepoints
  PM / QoS: Add pm_qos_request tracepoints
  PM / QoS: Add pm_qos_update_target/flags tracepoints
  PM / QoS: Update Documentation/power/pm_qos_interface.txt
  PM / Sleep: Print last wakeup source on failed wakeup_count write
  PM / QoS: correct the valid range of pm_qos_class
  PM / wakeup: Adjust messaging for wake events during suspend
  PM / Runtime: Update .runtime_idle() callback documentation
  PM / Runtime: Rework the "runtime idle" helper routine
  PM / Hibernate: print physical addresses consistently with other parts of kernel
2013-06-28 13:01:40 +02:00
Mark Brown
ed893559c9 Merge remote-tracking branch 'spi/topic/xilinx' into spi-next 2013-06-26 16:21:06 +01:00
Mark Brown
592cd34d94 Merge remote-tracking branch 'spi/topic/txx9' into spi-next 2013-06-26 16:21:05 +01:00
Mark Brown
cf7315b214 Merge remote-tracking branch 'spi/topic/topcliff' into spi-next 2013-06-26 16:21:05 +01:00
Mark Brown
adb25d5328 Merge remote-tracking branch 'spi/topic/sirf' into spi-next 2013-06-26 16:21:04 +01:00
Mark Brown
f4e975814e Merge remote-tracking branch 'spi/topic/s3c64xx' into spi-next 2013-06-26 16:21:04 +01:00
Mark Brown
c87e5d97c9 Merge remote-tracking branch 'spi/topic/s3c24xx' into spi-next 2013-06-26 16:21:03 +01:00
Mark Brown
7e016d146f Merge remote-tracking branch 'spi/topic/pxa' into spi-next 2013-06-26 16:21:03 +01:00
Mark Brown
37553b9236 Merge remote-tracking branch 'spi/topic/pl022' into spi-next 2013-06-26 16:21:02 +01:00
Mark Brown
3d09da11b5 Merge remote-tracking branch 'spi/topic/pdata' into spi-next 2013-06-26 16:21:02 +01:00
Mark Brown
1728ddb2ca Merge remote-tracking branch 'spi/topic/omap' into spi-next 2013-06-26 16:21:01 +01:00
Mark Brown
13a621693e Merge remote-tracking branch 'spi/topic/nuc900' into spi-next 2013-06-26 16:21:01 +01:00
Mark Brown
5bd30ed95b Merge remote-tracking branch 'spi/topic/mxs' into spi-next 2013-06-26 16:21:00 +01:00
Mark Brown
95e40cc528 Merge remote-tracking branch 'spi/topic/mpc512x' into spi-next 2013-06-26 16:21:00 +01:00
Mark Brown
11e9168919 Merge remote-tracking branch 'spi/topic/imx' into spi-next 2013-06-26 16:20:59 +01:00
Mark Brown
2a5c37cab3 Merge remote-tracking branch 'spi/topic/fsl' into spi-next 2013-06-26 16:20:59 +01:00
Mark Brown
385daaf0a8 Merge remote-tracking branch 'spi/topic/ep93xx' into spi-next 2013-06-26 16:20:58 +01:00
Mark Brown
6140b05ca3 Merge remote-tracking branch 'spi/topic/core' into spi-next 2013-06-26 16:20:58 +01:00
Mark Brown
2924f096a8 Merge remote-tracking branch 'spi/topic/coldfire-qspi' into spi-next 2013-06-26 16:20:57 +01:00
Mark Brown
4581949d52 Merge remote-tracking branch 'spi/topic/bpw' into spi-next 2013-06-26 16:20:57 +01:00
Mark Brown
8bce7eb7de Merge remote-tracking branch 'spi/topic/bcm2835' into spi-next 2013-06-26 16:20:56 +01:00
Mark Brown
0470f68ec1 Merge remote-tracking branch 'spi/topic/atmel' into spi-next 2013-06-26 16:20:56 +01:00
Mark Brown
77ba61454a Merge remote-tracking branch 'spi/fix/xilinx' into spi-linus 2013-06-26 16:20:55 +01:00
Mark Brown
89b77c4b44 Merge remote-tracking branch 'spi/fix/s3c64xx' into spi-linus 2013-06-26 16:20:54 +01:00
Mark Brown
cd469106c3 spi/s3c64xx: Rely on the compiler eliminating the OF ID table
This should work with modern compilers, isn't that much of an issue if
it goes wrong and it ensures that the DT-only hardware variants don't
leave unreferenced parameters structures lying around.

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-06-26 16:20:38 +01:00
Girish K S
bff82038ca spi: s3c64xx: Added support for exynos5440 spi
This patch adds support for the exynos5440 spi controller.
The integration of the spi IP in exynos5440 is different from
other SoC's. The I/O pins are no more configured via gpio, they
have dedicated pins.

Signed-off-by: Girish K S <ks.giri@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-06-25 11:15:33 +01:00