* samsung/cleanup:
  ARM: EXYNOS: Use gpio_request_one
  ARM: S5PV210: Use gpio_request_one
  ARM: SAMSUNG: Use kmemdup rather than duplicating its implementation
  ARM: EXYNOS: remove exynos4_scu_enable()

Merge branch 'next-samsung-cleanup-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into samsung/cleanup

* samsung/cleanup:
  ARM: S3C64XX: Modified according to SPI consolidation work
  ARM: S5PV210: Modified files for SPI consolidation work
  ARM: S5P64X0: Modified files for SPI consolidation work
  ARM: S5PC100: Modified files for SPI consolidation work
  ARM: S3C64XX: Modified files for SPI consolidation work
  ARM: SAMSUNG: Consolidation of SPI platform devices to plat-samsung
  ARM: SAMSUNG: Remove SPI bus clocks from platform data
  ARM: S5PV210: Add SPI clkdev support
  ARM: S5P64X0: Add SPI clkdev support
  ARM: S5PC100: Add SPI clkdev support
  ARM: S3C64XX: Add SPI clkdev support
  spi/s3c64xx: Use bus clocks created using clkdev
  mmc: sdhci-s3c: Use generic clock names for sdhci bus clock options
  ARM: SAMSUNG: Add lookup of sdhci-s3c clocks using generic names
  ARM: SAMSUNG: Remove SDHCI bus clocks from platform data

Merge branch 'next-samsung-cleanup-spi4' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into samsung/cleanup

Merge branch 'next-samsung-devel-spi3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into samsung/cleanup

Merge branch 'next-samsung-cleanup-mmc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into samsung/cleanup

Merge branch 'next-samsung-devel-dt1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into samsung/dt

By using gpio_request_one it is possible to set the direction
and initial value in one shot. Thus, using gpio_request_one can
make the code simpler.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

By using gpio_request_one it is possible to set the direction
and initial value in one shot. Thus, using gpio_request_one can
make the code simpler.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

As SPI platform devices are consolidated to plat-samsung, some
corresponding changes are required in the s3c6410 varient SoCs.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

As SPI platform devices are consolidated to plat-samsung, some
corresponding changes are required in the respective machine folder.
Added SPI Setup file for GPIO configurations and platform data
initialization.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

As SPI platform devices are consolidated to plat-samsung, some
corresponding changes are required in the respective machine folder.
Added SPI Setup file for GPIO configurations and platform data
initialization.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

As SPI platform devices are consolidated to plat-samsung, some
corresponding changes are required in the respective machine folder.
Added SPI Setup file for GPIO configurations and platform data
initialization.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

As SPI platform devices are consolidated to plat-samsung, some
corresponding changes are required in the respective machine folder.
Setup files are added for SPI GPIO configurations and platform data
initialization.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

SPI platform device definitions consolidated from respective machine
folder to plat-samsung
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

SPI bus clocks can be avoided passing through platform
data as spi driver is getting the bus clock using the
generic clock connection id registered via clkdev.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

Registered the SPI bus clocks with clkdev using generic
connection id.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

Registered the SPI bus clocks with clkdev using generic
connection id.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

Registered the SPI bus clocks with clkdev using generic
connection id.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

Registered the SPI bus clocks with clkdev using generic
connection id.
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

This patch modifies the driver to stop depending on the
clock names being passed from platform and switch over
to lookup clocks generic names using clkdev
Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

This patch modifies the driver to stop depending on the clock names
being passed from the platform and switch over to bus clock lookup
using generic clock names.
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

Add support for lookup of sdhci-s3c controller clocks using generic names
for s3c2416, s3c64xx, s5pc100, s5pv210 and exynos4 SoC's.
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
[kgene.kim@samsung.com: fixed trailing whitespace]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

The bus clocks previously sent through platform data to SDHCI controller
are removed.
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

Add initial dts file for EXYNOS4210 SoC. This dts file describes
the SoC specific devices and properties. Along with this, add dts
file for Samsung's SMDKV310 board and Insignal's ORIGEN board which
uses the EXYNOS4210 dts file and extends it to describe the board
specific properties.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

Add a new EXYNOS4 compatible device tree enabled board file. Boards
based on the EXYNOS4 family of SoC's can use this as the machine/board
file. When using this machine fike, a corresponding device tree blob
which describes the board's properties should be supplied at boot time
to the kernel.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

Add device tree based discovery support for Samsung's rtc controller.

Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

Add device tree based discovery support for Samsung's keypad controller.

Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Donghwa Lee <dh09.lee@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

With the 'struct dma_pl330_peri' removed, the platfrom data for dma
driver can be simplified to a simple list of peripheral request ids.

Cc: Jassi Brar <jassisinghbrar@gmail.com>
Acked-by: Boojin Kim <boojin.kim@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

With the 'struct dma_pl330_peri' removed, the platfrom data for dma
driver can be simplified to a simple list of peripheral request ids.

Cc: Jassi Brar <jassisinghbrar@gmail.com>
Acked-by: Boojin Kim <boojin.kim@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

With the 'struct dma_pl330_peri' removed, the platfrom data for dma
driver can be simplified to a simple list of peripheral request ids.

Cc: Jassi Brar <jassisinghbrar@gmail.com>
Cc: Boojin Kim <boojin.kim@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

PDMA controllers when instantiated from device tree are registered using
amba_device_register(). The registration process enables clock to the
controllers to read the peripheral id of the PDMA amba device.

In case of Exynos4, the clocks to the PDMA controllers are named as 'dma'
but amba_device_register() looks up the clock using the name 'apb_pclk'.
Hence, alias clocks with name 'apb_pclk' clock are created for clocks
with name 'dma'.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

The pl330 device instances and associated platform data is required only
for non-device-tree builds. With device tree enabled, the data about the
platform is obtained from the device tree. For images that include both
dt and non-dt platforms, an addditional check is added to ensure that
static amba device registrations is applicable to only non-dt platforms.

Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

A new dma request id 'DMACH_DT_PROP' is introduced for client drivers
requesting a dma channel. This request indicates that a device tree
node property represting the dma channel is available in
'struct samsung_dma_info'. The dma channel request wrapper uses the
node property value as the value for the filter parameter.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

For PL330 dma controllers instantiated from device tree, the channel
lookup is based on phandle of the dma controller and dma request id
specified by the client node. During probe, the private data of each
channel of the controller is set to point to the device node of the
dma controller. The 'chan_id' of the each channel is used as the
dma request id.

Client driver requesting dma channels specify the phandle of the
dma controller and the request id. The pl330 filter function
converts the phandle to the device node pointer and matches that
with channel's private data. If a match is found, the request id
from the client node and the 'chan_id' of the channel is matched.
A channel is found if both the values match.
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Acked-by: Boojin Kim <boojin.kim@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

With the 'struct dma_pl330_peri' removed, the platfrom data for dma
driver can be simplified to a simple list of peripheral request ids.

Cc: Jassi Brar <jassisinghbrar@gmail.com>
Acked-by: Boojin Kim <boojin.kim@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

The transfer direction for a channel can be inferred from the transfer
request and the need for specifying transfer direction in platfrom data
can be eliminated. So the structure definition 'struct dma_pl330_peri'
is no longer required.

The channel's private data is set to point to a channel id specified in
the platform data (instead of an instance of type 'struct dma_pl330_peri').
The filter function is correspondingly modified to match the channel id.

With the 'struct dma_pl330_peri' removed from platform data, the dma
controller transfer capabilities cannot be inferred any more. Hence,
the dma controller capabilities is specified using platform data.
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Acked-by: Boojin Kim <boojin.kim@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

The dma channel selection filter function is moved from plat-samsung
into the pl330 driver. In additon to that, a check is added in the
filter function to ensure that the channel on which the filter has
been invoked is pl330 channel instance (and avoid any incorrect
access of chan->private in a system with multiple types of DMA
drivers).
Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

exynos4120_serial_drv_data is only defined when building with support
for Exynos4210 so use the already provided define to ensure that we
don't reference it when building for other SoCs.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
[kgene.kim@samsung.com: Fixed build warning]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

Add device tree based discovery support for Samsung's uart controller.

Cc: Ben Dooks <ben-linux@fluff.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>