On OMAP4, CPU accesses on unmapped addresses are redirected to GPMC by
L3 interconnect. Because of CPU speculative nature, such accesses are
possible which can lead to indirect access to GPMC and if it's clock is
not running, it can result in hang/abort on the platform.

Above makes access to GPMC unpredictable during the execution, so it's
module mode needs to be kept under hardware control instead of software
control.
Since the auto gating is supported for GPMC, there isn't any power impact
because of this change.

The issue was un-covered with security middleware running along with HLOS.
In this case GPMC had a valid MMU descriptor on secure side where as HLOS
didn't map the GMPC because it isn't being used.
Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
[b-cousson@ti.com: Update subject and fix typos in the changelog]
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

4 micro seconds is not enough for PBIAS if MMC regulator is
enabled from MMC regulator OFF.
Increase the delay for PBIAS to stabilize.
Wait for PBIAS and timeout if not.

Resolves MMC/SD failure on OMAP4
"Pbias Voltage is not same as LDO"
Signed-off-by: NBalaji T K <balajitk@ti.com>
Acked-by: NKishore Kadiyala <kishore.kadiyala@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Several boards defining mtd partitions also defined NAND_BLOCK_SIZE as
SZ_128K. Move the define to common-board-devices.h

This removes multiple defines of NAND_BLOCK_SIZE.
Signed-off-by: NIgor Grinberg <grinberg@compulab.co.il>
[tony@atomide.com: updated comments]
Signed-off-by: NTony Lindgren <tony@atomide.com>

Commit 407a6888 (OMAP4: hwmod data:
Add AESS, McPDM, bandgap, counter_32k, MMC, KBD, ISS & IPU) added the
entry for keypad, but did not enable it.

Enable the keypad in the hwmod database so it works.

Signed-off-by: Shubhrajyoti D<shubhrajyoti@ti.com>
Acked-by: Benoit Cousson<b-cousson@ti.com>
[tony@atomide.com: updated comments]
Signed-off-by: NTony Lindgren <tony@atomide.com>

Free Beagle rev gpios when they are read, so others can read them later
Signed-off-by: NTasslehoff Kjappfot <tasskjapp@gmail.com>
[tony@atomide.com: updated comments]
Signed-off-by: NTony Lindgren <tony@atomide.com>

Without msecure beeing high it isn't possible to set (or start)
the RTC.

Tested with a BeagleBoard C4.
Signed-off-by: NAlexander Holler <holler@ahsoftware.de>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Speaker amplifier is accidentally powered up in early TWL gpio setup. This
causes a few mA of needless battery current consumption. Without this patch
the amplifier can be shutdown only by having one active audio playback and
shutdown cycle to speaker output.

Thanks to Kalle Jokiniemi <kalle.jokiniemi@nokia.com> for noticing the issue.
Signed-off-by: NJarkko Nikula <jhnikula@gmail.com>
Cc: Kalle Jokiniemi <kalle.jokiniemi@nokia.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

The V28_A domain in Nokia N900 that supplies VDD voltages to TLV320AIC34 and
TPA6130A2 should not be shutdown. This is because otherwise there will be
leak from VIO to VDD in TLV320AIC34 and this leak consumes more battery
current that is saved from keeping V28_A off. With this patch the battery
current consumption is approximately 1.5 mA lower.

Thanks to Kalle Jokiniemi <kalle.jokiniemi@nokia.com> for noticing the issue.
Signed-off-by: NJarkko Nikula <jhnikula@gmail.com>
Cc: Kalle Jokiniemi <kalle.jokiniemi@nokia.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

eMMC does not handle power off when not in sleep state,
Skip regulator disable during probe when eMMC is
not in known state - state left by bootloader.

Resolves eMMC failure on OMAP4
mmc0: error -110 whilst initialising MMC card
Signed-off-by: NBalaji T K <balajitk@ti.com>
Tested-by: NKishore Kadiyala <kishore.kadiyala@ti.com>
Acked-by: NKishore Kadiyala <kishore.kadiyala@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

introduced by: 96974a24
(omap: consolidate touch screen initialization among different boards)

ads7846 driver can use either gpio_pendown or get_pendown_state()
callback. In case of gpio_pendown, it requests the provided gpio_pendown
thus resulting in double requesting that gpio:

ads7846 spi1.0: failed to request pendown GPIO57
ads7846: probe of spi1.0 failed with error -16

Fix this by restricting the gpio request to the case of
get_pendown_state() callback is used.
Signed-off-by: NIgor Grinberg <grinberg@compulab.co.il>
Tested-by: NThomas Weber <weber@corscience.de>
Signed-off-by: NTony Lindgren <tony@atomide.com>

!dev case needs iounmap before return.
Signed-off-by: NTodd Poynor <toddpoynor@google.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

OMAP4 contains two separate instances of the padconf registers,
one in the core system config and one in the wakeup system config.
Pass in two tables to apply the correct values to each instance.
Signed-off-by: NColin Cross <ccross@android.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

OMAP4 has two mux instances, and the board may not have settings
for one of them.  Allow the board file to pass NULL for an
instance's mux settings, which will initialize the mux instance
but skip writing board settings.
Signed-off-by: NColin Cross <ccross@android.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Don't PTR_ERR() a non-error pointer:

 initcall omap4_l3_init+0x0/0xdc returned -544980480 after 0 usecs
 initcall omap4_l3_init+0x0/0xdc returned with error code -544980480
Signed-off-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Fix below compilation warnings.

arch/arm/mach-omap2/omap_hwmod.c: In function 'omap_hwmod_for_each':
arch/arm/mach-omap2/omap_hwmod.c:1631: warning: 'ret' may be used uninitialized in this function

arch/arm/mach-omap2/mux.c: In function 'omap_mux_get_gpio':
arch/arm/mach-omap2/mux.c:917: warning: 'm' may be used uninitialized in this function
Signed-off-by: NGovindraj.R <govindraj.raja@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

WARNING: arch/arm/mach-omap2/built-in.o(.text+0x11014): Section mismatch
in reference from the function cm_t3517_init_usbh() to the (unknown
reference) .init.data:(unknown)
The function cm_t3517_init_usbh() references
the (unknown reference) __initdata (unknown).
This is often because cm_t3517_init_usbh lacks a __initdata
annotation or the annotation of (unknown) is wrong.
Signed-off-by: NIgor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NTony Lindgren <tony@atomide.com>

The serial*_data should have been marked as __initdata as per
it's usage in the board files. Fix the same to remove the
section mismatch warnings caused by it.
Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: NSilesh C V <silesh@ti.com>
[tony@atomide.com: updated with additional fixes from Silesh]
Signed-off-by: NTony Lindgren <tony@atomide.com>

I got some build error like below while executing "make omap2plus_defconfig".

  CC      arch/arm/mach-omap2/board-2430sdp.o
arch/arm/mach-omap2/board-2430sdp.c: In function 'omap_2430sdp_init':
arch/arm/mach-omap2/board-2430sdp.c:247: error: 'GPIOF_OUT_INIT_LOW' undeclared (first use in this function)
arch/arm/mach-omap2/board-2430sdp.c:247: error: (Each undeclared identifier is reported only once
arch/arm/mach-omap2/board-2430sdp.c:247: error: for each function it appears in.)

This patch fixes the build error by include linux/gpio.h instead of mach/gpio.h.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Cc: Syed Mohammed Khasim <x0khasim@ti.com>
Cc: Grazvydas Ignotas <notasas@gmail.com>
Cc: Steve Sakoman <steve@sakoman.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Modifying the macro name Main_Ref to all caps(MAIN_REF).

Suggested by Nishanth Menon <nm@ti.com>
Signed-off-by: NLesly A M <leslyam@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: David Derrick <dderrick@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Rather than having each platform class provide a mach/smp.h header for
smp_cross_call(), arrange for them to register the function with the
core ARM SMP code instead.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

It shows up on the console despite using "silent" in the bootargs, and
it's really just noise in the boot log since PM init is always called.
Signed-off-by: NSanjeev Premi <premi@ti.com>
Cc: jhnikula@gmail.com
[khilman@ti.com: minor changelog edits]
Signed-off-by: NKevin Hilman <khilman@ti.com>

The achievable power modes of the power domains in cpuidle
depends on the system wide 'enable_off_mode' knob in debugfs.
Upon changing enable_off_mode, do not change the C-states
'valid' field but instead dynamically restrict the power modes
when entering idle.

The C-states 'valid' field is just used to enable/disable some
C-states at init and shall not be changed later on.
Signed-off-by: NJean Pihet <j-pihet@ti.com>
Signed-off-by: NKevin Hilman <khilman@ti.com>

- fix single and multi-lines comments format
- removed the omap3_idle_bm_check function and replaced the test
   in omap3_enter_idle_bm by the equivalent code
- re-organize omap3_enter_idle_bm code path, assign local variables
   only when needed
- reword some comments
Signed-off-by: NJean Pihet <j-pihet@ti.com>
Signed-off-by: NKevin Hilman <khilman@ti.com>

The current implementation defines an internal structure and a
C-states array. Using those structures is redundant to the
structs used by the cpuidle framework.

This patch provides a clean-up of the internal struct, removes the
internal C-states array, stores the data using the existing cpuidle
per C-state struct and registers the mach specific data to cpuidle
C-state driver_data (accessed using cpuidle_[gs]et_statedata).
Also removes unused macros, fields and code and compacts the repeating
code using an inline helper function.

The result is more compact and more readable code as well as
reduced data RAM usage.

Also retain C1 as the only always valid C-state and system safe state.
Signed-off-by: NJean Pihet <j-pihet@ti.com>
Signed-off-by: NKevin Hilman <khilman@ti.com>

- sleep_latency and wake_latency are not used, replace them by
  exit_latency which is used by cpuidle. exit_latency simply is
  the sum of sleep_latency and wake_latency,
- replace threshold by target_residency,
- changed the OMAP3 specific cpuidle code accordingly,
- changed the OMAP3 board code accordingly.
Signed-off-by: NJean Pihet <j-pihet@ti.com>
Signed-off-by: NKevin Hilman <khilman@ti.com>

The cpuidle states settings can be overriden by some board-
specific settings, by calling omap3_pm_init_cpuidle.
Remove the 3430SDP specific states settings registration
since the figures are identical to the default ones (in cpuidle34xx.c).
Signed-off-by: NJean Pihet <j-pihet@ti.com>
Signed-off-by: NKevin Hilman <khilman@ti.com>

Powerdown the internal UTMI PHY when USB is not enabled. This will
allow the OMAP core domain to transition to retention and offmode.
Signed-off-by: NHema HK <hemahk@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

omap4430_phy_init() function can be called with no device pointer,
to powerdown the PHY during board init when USB is disabled.
Fix the function accordingly.
Signed-off-by: NHema HK <hemahk@ti.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

am35x_musb_set_mode() was redefined. Fix it.
Reported-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Powerdown the internal PHY during board init for OMAP44xx.
So that when musb is disabled core transition to retention/off
is not blocked.
Signed-off-by: NHema HK <hemahk@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

since it is merged into board-igep0020.c
Signed-off-by: NMike Rapoport <mike@compulab.co.il>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Add IGEP3 machine support to board-igep0020
Signed-off-by: NMike Rapoport <mike@compulab.co.il>
Acked-by: NEnric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

to allow easy addition of IGEP3
Signed-off-by: NMike Rapoport <mike@compulab.co.il>
Acked-by: NEnric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

IGEP2 and IGEP3 boards are very similar and can be merged into one file.
Start refactoring with changing igep2 to igep where applicable.
Signed-off-by: NMike Rapoport <mike@compulab.co.il>
Acked-by: NEnric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Use generic irq chip for omap2 & 3.

Note that this patch also leaves out the spurious IRQ warning
for omap3.

This warning should no longer be needed as the interrupt handlers
for various devices have implemented the necessayr read-back of
the posted write.
Signed-off-by: NTony Lindgren <tony@atomide.com>

The debug l3_ick/rate is not displaying the actual rate of the clock in
hardware. This is because, the core dpll set_rate function doesn't update the
clk.rate. After fixing, the l3_ick/rate is displaying proper values.
Signed-off-by: NShweta Gulati <shweta.gulati@ti.com>
Signed-off-by: NAvinash.H.M <avinashhm@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Paul Wamsley <paul@pwsan.com>
Acked-by: NPaul Walmsley <paul@pwsan.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

use gpio_request_<one|array>() instead of multiple gpiolib calls,
remove unneeded variables, etc.
Signed-off-by: NIgor Grinberg <grinberg@compulab.co.il>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Currently, omap_display_init() maintains arrays for hwmod name(oh_name) and the
correspnding platform_device name(dev_name) needed by omap_device_build().
A variable oh_count keeps a track of the number of devices to build from oh_name
based on what omap revision it is.

Clean this up by maintaining an array of omap_dss_hwmod_data struct which is
defined for each omap revision as suggested by Tomi Valkeinen. Assign the
corresponding omap_dss_hwmod_data array struct to the pointer curr_dss_hwmod in
omap_display_init().
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

Move some of the configurable HDMI PLL parameters to dssdev.clock struct.
Cleanup the function hdmi_compute_pll() by using the parameters defined in the
board file and do some cosmetic modifications.
Signed-off-by: NArchit Taneja <archit@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

arch/arm/plat-omap/include/plat/panel-generic-dpi.h is an include for
the OMAP DSS panel driver for generic DPI displays. A more logical place
for it is in include/video.
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>