Remove the duplicated code and use the cpuidle common code for initialization.
Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

The en_core_tk_irqen flag is set in all the cpuidle driver which
means it is not necessary to specify this flag.

Remove the flag and the code related to it.
Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>  # for mach-omap2/*
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

The davinci_enter_idle is called from the cpuidle with the
cpuidle_wrap_enter function. This one does the time compution
for entering and exiting the idle function and then we call
again cpuidle_wrap_enter for cpu_do_idle. This is wrong, we
are calling recursively cpuidle_wrap_enter for nothing and
furthermore reenabling the local irq.

Remove this and replace it by the cpu_do_idle function.
Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

This adds additional error checking to the private edma api implementation
to catch the case where the edma_alloc_slot() has an invalid controller
parameter. The edma dmaengine wrapper driver relies on this condition
being handled in order to avoid setting up a second edma dmaengine
instance on DA830.

Verfied using a DA850 with the second EDMA controller platform instance
removed to simulate a DA830 which only has a single EDMA controller.
Reported-by: NTomas Novotny <tomas@novotny.cz>
Signed-off-by: NMatt Porter <mporter@ti.com>
Cc: stable@vger.kernel.org # v3.7.x+
Tested-by: NTomas Novotny <tomas@novotny.cz>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Update the da8xx_restart() function to support machine reboot
when booting using DT. Have the function search for the watchdog
platform device instead of always using "da8xx_wdt_device" which
is never registered in DT case.

While at it, also make da8xx_wdt_device static since there is no need
for it to be globally visible.

Tested machine reboot with both DT and non-DT boot on DA850 EVM.
Signed-off-by: NKumar, Anil <anilkumar.v@ti.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Add da850 wdt DT node.
Add OF_DEV_AUXDATA for wdt driver to use wdt clock.
Signed-off-by: NKumar, Anil <anilkumar.v@ti.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Add I2C0 device tree and pin muxing information to da850-evm.
Also, add OF_DEV_AUXDATA for I2C0 controller driver in da850
board dt file to use I2C0 clock.
Verified i2c0 node gets created in sys class interface as
"/sys/class/i2c-dev/i2c-0/subsystem/i2c-0".

nsekhar@ti.com: tested using i2cdetect and i2cdump.
Signed-off-by: NVishwanathrao Badarkhe, Manish <manishv.b@ti.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

The device->state_count is initialized in the cpuidle_register_device
function.
Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

With one function handling the idle state and a single variable,
the usage of the davinci_ops is overkill.

This patch removes these ops and simplify the code.

Furthermore, the 'driver_data' field is no longer used, we have
1 of the 3 remaining user of this field removed.
Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

The patch is mindless, it just moves the idle function below in the file
in order to prevent forward declaration in the next patch.
Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

That will allow to cleanup the rest of the code right after,
because the ops won't make sense.
Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Without this patch the adv7343 encoder was being set to default
configuration which caused display not to work on this board.
This patch passes the necessary platform data required for adv7343
encoder to work on da850 evm.
Signed-off-by: NLad, Prabhakar <prabhakar.lad@ti.com>
Acked-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Added dsp clock definition, keyed to "davinci-rproc.0".
DSP clocks is derived from pll0 sysclk1. Add a clock tree
node for that too.
Signed-off-by: NRobert Tivy <rtivy@ti.com>
[nsekhar@ti.com: merge addition of pll0 sysclk1 and dsp clock
into one commit. Add PSC_FORCE to dsp clock node to handle the
case where DSP does not go into IDLE and its clock needs to
be disabled.]
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Introduce an IP reset API for use on DaVinci SoC.

There is no existing "reset" framework support for SoC devices.
The remoteproc driver needs explicit control of the DSP's reset line.
To support this, a new DaVinci specific API is added.

This private API will disappear with DT migration.  Some discussion
regarding a proposed DT "reset" binding is here:
https://patchwork.kernel.org/patch/1635051/

Modify davinci_clk_init() to set clk "reset" function for clocks
that indicate PSC_LRST support.  Also fix indentation issue with
function opening curly brace.
Signed-off-by: NRobert Tivy <rtivy@ti.com>
[nsekhar@ti.com: rename davinci_psc_config_reset() to davinci_psc_reset()]
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

For DT, DaVinci platform can use pinctrl-single driver for handling
padconf registers.

Enable PINCTRL Kconfig for MACH_DA8XX_DT platform. Add required
pinctrl DT entries in da850 dts file.

 Test procedure
  1)Populate DT file with NAND node information.
  2)Populate board DT file with pinmux information for NAND.
  3)Boot and confirm NAND is detected by the kernel.
  4)cat /proc/mtd to show partitions.
Signed-off-by: NKumar, Anil <anilkumar.v@ti.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Change all pr_warning() calls to pr_warn(), as advised by checkpatch.pl.
Signed-off-by: NRobert Tivy <rtivy@ti.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Changed all pr_warning() calls to pr_warn(), as advised by checkpatch.pl.
Signed-off-by: NRobert Tivy <rtivy@ti.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Change all pr_warning() calls to pr_warn(), as advised by checkpatch.pl.

Also, while modifying those pr_warning() calls change hardcoded
function names to use '"%s:", __func__' instead, and converted acronym
usage to upper case.
Signed-off-by: NRobert Tivy <rtivy@ti.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

With ARCH_HAS_DECOMP_WDOG removed from arch/arm/boot/compressed/decompress.c,
all the arch_decomp_wdog() definition at platform level is unneeded.
Remmove it.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NNicolas Pitre <nico@linaro.org>
Acked-by: NJason Cooper <jason@lakedaemon.net>

CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Without this patch, da8xx_register_spi() registers the SPI board info,
the SPI controller, and sets its number of chipselect to the size of the
static spi_board_info array. This is bad because a SPI board info may
declare devices for different SPI buses, and because other code can also
call spi_register_board_info() (e.g. a daughter board might provide
additional SPI devices).

This patch removes the spi_register_board_info() call from
da8xx_register_spi(), renames this last one to da8xx_register_spi_bus()
to be more explicit, takes the number of chipselect as a function
parameter, and updates the impacted board-da8{3,5}0-evm.c, and
board-mityomapl138.c files accordingly. It also sets the SPI platform
data static, as it doesn't need to be exported.
Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com>
[nsekhar@ti.com: fixed conflicts with v3.7-rc7, converted to use pr_warn(),
modified print messages to use __func__]
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Now that the only field in struct sys_timer is .init, delete the struct,
and replace the machine descriptor .timer field with the initialization
function itself.

This will enable moving timer drivers into drivers/clocksource without
having to place a public prototype of each struct sys_timer object into
include/linux; the intent is to create a single of_clocksource_init()
function that determines which timer driver to initialize by scanning
the device dtree, much like the proposed irqchip_init() at:
http://www.spinics.net/lists/arm-kernel/msg203686.html

Includes mach-omap2 fixes from Igor Grinberg.
Tested-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: NStephen Warren <swarren@nvidia.com>

The vpbe driver can handle different platforms DM644X, DM36X and
DM355. To differentiate between this platforms venc_type/vpbe_type
was passed as part of platform data which was incorrect. The correct
way to differentiate to handle this case is by passing different
platform names.
This patch creates platform_device_id[] array supporting different
platforms and assigns id_table to the platform driver, and finally
in the probe gets the actual device by using platform_get_device_id()
and gets the appropriate driver data for that platform.
Taking this approach will also make the DT transition easier.
Signed-off-by: NLad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: NManjunath Hadli <manjunath.hadli@ti.com>
Acked-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

rtc-omap driver is now capable of handling kicker mechanism, hence remove
kicker handling at platform level, instead provide proper device name so
that driver can handle kicker mechanism by itself
Signed-off-by: NAfzal Mohammed <afzal@ti.com>
Acked-by: NSekhar Nori <nsekhar@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Daniel Mack <zonque@gmail.com>
Cc: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

arch/arm/mach-davinci/board-da850-evm.c: In function 'da850_evm_init':
arch/arm/mach-davinci/board-da850-evm.c:1516:2: error: implicit declaration of function 'sram_get_gen_pool' [-Werror=implicit-function-declaration]
arch/arm/mach-davinci/board-da850-evm.c:1516:31: warning: assignment makes pointer from integer without a cast [enabled by default]
Signed-off-by: NOlof Johansson <olof@lixom.net>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@ti.com>

do clk_get on connection id "fck" to support OMAP based
platforms having multiple clocks for module. Without this
driver change clk_get fails on am335x.

This patch is based on the discussion in community
http://marc.info/?l=linux-kernel&m=135166018907827&w=2Signed-off-by: NManjunathappa <prakash.pm@ti.com>
Cc: Vaibhav Hiremath <hvaibhav@ti.com>
Acked-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Configure below LCDC configurations to optimal values, also have an
option configure these optional parameters for platform.
1) AC bias configuration: Required only for passive panels
2) Dma_burst_size:
3) FIFO_DMA_DELAY:
4) FIFO threshold: Does not apply for da830 LCDC.

Patch is verified for 16bpp and 24bpp configurations on da830, da850 and
am335x EVMs.
Signed-off-by: NManjunathappa, Prakash <prakash.pm@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

The dtb targets belong in arch/arm/boot/dts/Makefile now, so move the
newly added davinci targets there.
Signed-off-by: NOlof Johansson <olof@lixom.net>

Fix the video clock setting when custom timings are used with
pclock <= 27MHz. Existing video clock selection uses PLL2 mode
which results in a 54MHz clock whereas using the MXI mode results
in a 27MHz clock (which is the one actually desired).

This bug affects the Enhanced Definition (ED) support on DM644x.
Without this patch, out-range signals errors are were observed on
the TV when viewing ED. An out-of-range signal is often caused when
the field rate is above the rate that the television will handle.
Signed-off-by: NLad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: NManjunath Hadli <manjunath.hadli@ti.com>
Cc: Sekhar Nori <nsekhar@ti.com>
[nsekhar@ti.com: reword commit message based on on-list discussion]
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
CC: Sekhar Nori <nsekhar@ti.com>
CC: Kevin Hilman <khilman@ti.com>

In case of error, the function clk_get() returns ERR_PTR() not
NULL pointer. The NULL test in the error handling should be
replaced with IS_ERR().

dpatch engine is used to auto generated this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

This helps generating device tree blobs for DaVinci DA850 boards with
command:

    'make ARCH=arm dtbs'.
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

This board supports:

- AM1808 based board
- 64 MiB DDR ram
- 2 MiB Nor flash
- 128 MiB NAND flash
- use internal RTC
- I2C support
- hwmon lm75 support
- UBI/UBIFS support
- MMC support
- USB OTG support

This patch adds the basic DTS file enabling the serial ports.
Other features will be added in due course of time.
Signed-off-by: NHeiko Schocher <hs@denx.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: davinci-linux-open-source@linux.davincidsp.com
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Wolfgang Denk <wd@denx.de>
[nsekhar@ti.com: modified after dtsi refactoring and added binding
documentation]
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Add device tree data for DA850 EVM. At this time, only
information on serial ports is added.
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Add support for booting DA850 using flattened device
tree to describe the hardware. At this time only the
very basic bootup using a serial console is supported.
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Registers the uio_pruss platform device on the DA850 EVM.

Tested on AM180x-EVM using the PRU_memAccessPRUDataRam and
PRU_memAccessL3andDDR examples from the PRU userspace tools
available from http://www.ti.com/tool/sprc940Signed-off-by: NMatt Porter <mporter@ti.com>
[nsekhar@ti.com: use pr_warn() instead of pr_warning()]
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Reorder includes so they are grouped by linux/mach/asm
Signed-off-by: NMatt Porter <mporter@ti.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Bail out of UART access functions in uncompress.h if the uart
port is not setup. This will happen when booting from DT since
machine type matching does not work in this case. This may also
happen if a correct machine type is not setup by bootloader.
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

The bit 0 of the field is uart0 and the bit 1 is uart1 and so on.
Signed-off-by: NHenrique Camargo <henrique@henriquecamargo.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

Pointer dereference should be moved below the NULL test.

spatch with a semantic match is used to found this.
(http://coccinelle.lip6.fr/)
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>