L3INSTR clock domain is read only register and its reset value is
HW_AUTO. The modules withing this clock domain needs to be kept under
hardware control.

MODULEMODE:
- 0x0: Module is disable by software. Any INTRCONN access to module
  results in an error, except if resulting from a module wakeup
  (asynchronous wakeup).
- 0x1: Module is managed automatically by hardware according to
  clock domain transition. A clock domain sleep transition put
  module into idle. A wakeup domain transition put it back
  into function. If CLKTRCTRL=3, any INTRCONN access to module
  is always granted. Module clocks may be gated according to
  the clock domain state.

This patch keeps CM_L3INSTR_L3_3_CLKCTRL, CM_L3INSTR_L3_INSTR_CLKCTRL
and CM_L3INSTR_INTRCONN_WP1_CLKCTRL module mode under hardware control
by using ENABLE_ON_INIT flag.

Without this the OMAP4 device OFF mode SAR restore phase aborts during
interconnect register restore phase. This can be also handled by doing
explicit a clock enable and disable in the low power code since there
is no direct module associated with it. But that seems not necessary
since the clock domain is under HW control.
Signed-off-by: NRajendra Nayak <rnayak@ti.com>
Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

On OMAP4, there is an issue when L3INIT transitions to OFF mode without
device OFF. The SAR restore mechanism will not get triggered without
wakeup from device OFF and hence the USB host and USB TLL context
will not be restored.

Hardware team recommended to remove the OFF state support for L3INIT_PD
since there is no power impact. It will be removed on next OMAP revision
(OMAP4440 and beyond).

Hence this patch removed the OFF state from L3INIT_PD. The deepest
state supported on L3INIT_PD is OSWR just like CORE_PD and PER_PD
Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
[b-cousson@ti.com: update the changelog with next OMAP info]
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

The l4per power domain in ES2.0 does support only RET and ON states.
The previous ES1.0 HW database was wrong and thus fixed on ES2.
Change the pwrsts field to reflect that.
Signed-off-by: NRajendra Nayak <rnayak@ti.com>
Acked-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

omap_set_pwrdm_state today assumes a clkdm supports hw_auto
transitions and hence leaves some which do not support this
in sw wkup state preventing low power transitions.
Signed-off-by: NRajendra Nayak <rnayak@ti.com>
Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: NBenoit Cousson <b-cousson@ti.com>
Acked-by: NKevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

For pwrdm's which support LOWPOWERSTATECHANGE, do not try waking
up the domain to put it back to deeper sleep state.
Signed-off-by: NRajendra Nayak <rnayak@ti.com>
Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: NBenoit Cousson <b-cousson@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Acked-by: NKevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

For devices which have not (yet) been converted to use omap_device,
implement the context loss counter using the "brutal method" as
originally proposed by Paul Walmsley[1].

The dummy context loss counter is incremented every time it is
checked, but only when off-mode is enabled.  When off-mode is
disabled, the dummy counter stops incrementing.

Tested on 36xx/Zoom3 using MMC driver, which is currently the
only in-tree user of this API.

This patch should be reverted after all devices are converted to using
omap_device.

[1] http://marc.info/?l=linux-omap&m=129176260000626&w=2Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
[paul@pwsan.com: fixed compile warning; fixed to compile on OMAP1]
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Implement OMAP PM layer omap_pm_get_dev_context_loss_count() API by
creating similar APIs at the omap_device and omap_hwmod levels.  The
omap_hwmod level call is the layer with access to the powerdomain
core, so it is the place where the powerdomain is queried to get the
context loss count.

The new APIs return an unsigned value that can wrap as the
context-loss count grows.  However, the wrapping is not important as
the role of this function is to determine context loss by checking for
any difference in subsequent calls to this function.

Note that these APIs at each level can return zero when no context
loss is detected, or on errors.  This is to avoid returning error
codes which could potentially be mistaken for large context loss
counters.

NOTE: only works for devices which have been converted to use
      omap_device/omap_hwmod.

Longer term, we could possibly remove this API from the OMAP PM layer,
and instead directly use the omap_device level API.
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Add new powerdomain API

    u32 pwrdm_get_context_loss_count(struct powerdomain *pwrdm)

for checking how many times the powerdomain has lost context.  The
loss count is the sum of the powerdomain off-mode counter, the
logic off counter and the per-bank memory off counter.
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>
[paul@pwsan.com: removed bogus return value on error; improved kerneldoc;
 tweaked commit message]
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

In omap4, there is no explicit configuration register to enable mailbox clocks.
Defining dummy clock for mailbox clock module to keep the mailbox driver
backward compatible with previous omaps.
Signed-off-by: NHari Kanigeri <h-kanigeri2@ti.com>
Acked-by: NBenoît Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

J-Type DPLLs have additional configuration parameters that need to
be programmed when setting the multipler and divider for the DPLL.
These parameters being the sigma delta divider (SD_DIV) for the DPLL
and the digital controlled oscillator (DCO) to be used by the DPLL.

The current code is implemented specifically to configure the
OMAP3630 PER J-Type DPLL. The OMAP4430 USB DPLL is also a J-Type DPLL
and so this code needs to be updated to work for both OMAP3 and OMAP4
devices and any other future devices that have J-TYPE DPLLs.

For the OMAP3630 PER DPLL both the SD_DIV and DCO paramenters are
used but for the OMAP4430 USB DPLL only the SD_DIV field is used.
The current implementation will only program the SD_DIV and DCO
fields if the DPLL has both and hence this does not work for
OMAP4430.

In order to make the code more generic add two new fields to the
dpll_data structure for the SD_DIV field and DCO field bit-masks
and only program these fields if the masks are defined for a specific
DPLL. This simplifies the code and allows us to remove the flag
DPLL_NO_DCO_SEL.

Tested on OMAP36xx Zoom3 and OMAP4 Blaze.
Signed-off-by: NJon Hunter <jon-hunter@ti.com>
[paul@pwsan.com: removed explicit inlining and added '_' prefix on lookup_*()
 functions; added testing info to commit message; added 35xx comments back in]
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Update clock3xxx_data for mcspi1-4 with appropriate clock domain name.
Signed-off-by: NCharulatha V <charu@ti.com>
Signed-off-by: NGovindraj.R <govindraj.raja@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

uart, gpio, wd_timer and i2c does support the new smart-idle with wakeup
added in OMAP4.

Add the flag to allow the hwmod core to enable this mode when applicable.
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Rajendra Nayak <rnayak@ti.com>

The new OMAP4 IPs introduced a new idle mode named smart-idle with wakeup.

This new idlemode replaces the enawakeup for the new IPs but seems to
coexist as well for some legacy IPs (UART, GPIO, MCSPI...)

Add the new SIDLE_SMART_WKUP flag to mark the IPs that support this
capability.
The omap_hwmod_44xx_data.c will have to be updated to add this new flag.

Enable this new mode when applicable in _enable_wakeup, _enable_sysc and
_idle_sysc.
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Tested-by: NSebastien Guiriec <s-guiriec@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Rajendra Nayak <rnayak@ti.com>

In cases where a module (hwmod) does not become accesible on enabling
the main clocks (can happen if there are external clocks needed
for the module to become accesible), make sure the clocks are not
left enabled.
This ensures that when the requisite external dependencies are met
a omap_hwmod_enable and omap_hwmod_idle/shutdown would rightly enable
and disable clocks using clk framework. Leaving the clocks enabled in
the error case causes additional usecounting at the clock framework
level leaving the clock enabled forever.
Signed-off-by: NRajendra Nayak <rnayak@ti.com>
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>

The hwmod list will be built are init time and never
be modified at runtime. There is no need anymore to protect
the list from concurrent accesses using a mutex.
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>

_register, _find_mpu_port_index and _find_mpu_rt_base are static APIs
that will be used only during the omap_hwmod initialization phase.
There is no need to keep them for runtime.
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>

Do not allow omap_hwmod_register to be used outside the core
hwmod code. An omap_hwmod should be registered only at init time.
Remove the omap_hwmod_unregister that is not used today since the
hwmod list will be built once at init time and never be modified
at runtime.
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>

Since i2c1 and i2c2 are using the same data, remove the two previous
instances and use a common i2c_dev_attr one.

Moreover, that will fix the following warning:
arch/arm/mach-omap2/omap_hwmod_2430_data.c:485:
warning: 'i2c_dev_attr' defined but not used
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Acked-by: NRajendra Nayak <rnayak@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Charulatha V <charu@ti.com>

In the omap_hwmod core, most of the SYSCONFIG register helper
functions do not directly write the register, but instead just modify
a value passed in.

This patch converts the _enable_wakeup() and _disable_wakeup() helper
functions to take a value argument and only modify it instead of
actually writing the register.  This makes the wakeup helpers
consistent with the other helper functions and avoids unintentional
problems like the following.

This problem was found after discovering that GPIO wakeups were no
longer functional.  The root cause was that the ENAWAKEUP bit of the
SYSCONFIG register was being unintentionaly overwritten, leaving
wakeups disabled after the following two commits were combined:

commit: 9980ce53
        OMAP: hwmod: Enable module wakeup if in smartidle

commit: 78f26e87
        OMAP: hwmod: Set autoidle after smartidle during _sysc_enable

There resulting in code in _enable_sysc() was this:

	/*
	 * XXX The clock framework should handle this, by
	 * calling into this code.  But this must wait until the
	 * clock structures are tagged with omap_hwmod entries
	 */
	if ((oh->flags & HWMOD_SET_DEFAULT_CLOCKACT) &&
	    (sf & SYSC_HAS_CLOCKACTIVITY))
		_set_clockactivity(oh, oh->class->sysc->clockact, &v);

	_write_sysconfig(v, oh);

so here, 'v' has wakeups disabled.

	/* If slave is in SMARTIDLE, also enable wakeup */
	if ((sf & SYSC_HAS_SIDLEMODE) && !(oh->flags & HWMOD_SWSUP_SIDLE))
		_enable_wakeup(oh);

Here wakeup is enabled in the SYSCONFIG register (but 'v' is not updated)

	/*
	 * Set the autoidle bit only after setting the smartidle bit
	 * Setting this will not have any impact on the other modules.
	 */
	if (sf & SYSC_HAS_AUTOIDLE) {
		idlemode = (oh->flags & HWMOD_NO_OCP_AUTOIDLE) ?
			0 : 1;
		_set_module_autoidle(oh, idlemode, &v);
		_write_sysconfig(v, oh);
	}

And here, SYSCONFIG is updated again using 'v', which does not have
wakeups enabled, resulting in ENAWAKEUP being cleared.

Special thanks to Benoit Cousson for pointing out that wakeups were
supposed to be automatically enabled when a hwmod is enabled, and thus
helping target the root cause of this problem.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>

Fix opt clocks name in clock framework and hwmod.

Add the missing iclk in the ocp_if structure.

Add the HWMOD_CONTROL_OPT_CLKS_IN_RESET flag to ensure
the the GPIO optional clock is enable during reset.
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Tested-by: NCharulatha V <charu@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>

Add IVA and DSP hwmods in order to allow the pm code to
initialize properly the processors devices during
omap2_init_processor_devices.

It will avoid the following warnings.
_init_omap_device: could not find omap_hwmod for iva
_init_omap_device: could not find omap_hwmod for dsp
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>

The DMM is a piece of interconnect that need to be configured properly
for the tiler functionnality. It thus exposes some configuration registers
that were missing previously.
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Update the data for GPIO, UART, WD_TIMER and I2C in order to
support the new reset status flag introduce in the following
commit:
commit 2cb06814
OMAP: hwmod: Fix softreset status check for some new OMAP4 IPs

Without this flag properly set, the reset is done, but the hwmod
core code will not wait for the reset completion to continue its
excecution.
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Tested-by: NCharulatha V <charu@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Govindraj.R <govindraj.raja@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>

The original OMAP4 hwmod data files is fully generated from HW
database. But since the file is introduced incrementaly along
with driver that uses the data, it has to be splitted by the driver
owner and then re-merged by the maintainer.
Because of the similarity of the data, git is completely lost
during such merge and thus the data does not look like the original one
at the end.

Re-order properly the structures to stay in sync with original data set.
This makes it much easier to diff the autogenerated script output with
what's in mainline, see differences, and generate patches for those
diffs.  The goal is to stay in sync with the autogenerated data from now
on.

Add a comment that does contain all the IPs that can have a hwmod, but
do not have it in the file for the moment. It gives a good indication
of the progress.
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
[paul@pwsan.com: updated to apply against current core integration branch,
 commit message slightly amplified; fixed opt_clks_cnt whitespace]
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Govindraj.R <govindraj.raja@ti.com>
Cc: Charulatha V <charu@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>

Some users were observing crashes during the execution of CORE DVFS
code from OCM RAM -- a locally-modified copy of the linux-omap code.
Richard Woodruff tracked this down to a DTLB miss which had been
inadvertently and intermittently caused by the local modifications.
(The TLB miss caused the ARM MMU to attempt to walk the page tables
stored in SDRAM, which was not possible since SDRAM is off-line for a
portion of the CORE DVFS OCM RAM code.)

Add a note to the OMAP2 & OMAP3 CORE DVFS SRAM code to warn others that
changes may result in crashes here if they are not carefully tested.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Jon Hunter <jon-hunter@ti.com>
Cc: Nishanth Menon <nm@ti.com>

The OMAP3 clock code contains some legacy code to allow the MPU rate
to be specified as a kernel command line parameter.  If the 'mpurate'
parameter is specified, the kernel will attempt to switch the MPU rate
to this rate during boot.  As part of this process, a short message
"Switched to new clocking rate" is generated -- and in this message,
the "Core" clock rate and "MPU" clock rate are transposed.

This patch ensures that the clock rates are displayed in the correct
order.

Thanks to Bruno Guerin <br.guerin@free.fr> for reporting this bug and
proposing a fix.  Thanks to Richard Woodruff <r-woodruff2@ti.com> for
reviewing the problem and passing the report on.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Bruno Guerin <br.guerin@free.fr>
Cc: Richard Woodruff <r-woodruff2@ti.com>

Clarify the usage of the struct omap_clk.cpu flags (e.g., CK_*) to use
bits only for individual SoC variants (e.g., CK_3430ES1, CK_3505,
etc.).  Superset flags, such as CK_3XXX or CK_AM35XX, are now defined
as disjunctions of individual SoC variant flags.  This simplifies the
definition and use of these flags.  struct omap_clk record definitions
can now simply specify the bitmask of actual SoCs that the records are
valid for.  The clock init code can simply set a single CPU type mask
bit for the SoC that is currently in use, and test against that,
rather than needing to set some combination of flags.

Similarly, clarify the use of struct clksel_rate.flags.  The bit
allocated for RATE_IN_3XXX has been reassigned, and RATE_IN_3XXX has
been defined as a disjunction of the 34xx and 36xx rate flags.  The
advantages are the same as the above.

Clarify the usage of struct omap_clk.cpu flags such as CK_34XX to only
apply to the SoCs that they name, e.g., OMAP34xx chips.  The previous
practice caused significantly different SoCs, such as OMAP36xx, to be
included in CK_34XX.  In my opinion, this is much more intuitive.

Similarly, clarify the use of struct clksel_rate.flags, such that
RATE_IN_3430ES2PLUS now only applies to 34xx chips with ES level >= 2
- it does not apply to OMAP36xx.

...

At some point, it probably makes sense to collapse the CK_* and
RATE_IN_* flags together into a single bitfield, and possibly use the
existing CHIP_IS_OMAP* flags for platform detection.

...

This all seems to work fine on OMAP34xx and OMAP36xx Beagle.  Not sure
if it works on Sitara or the TI816X, unfortunately I don't have any
here to test with.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

dss2_fck is a clksel clock, and therefore its rate should be recalculated
with the clksel mechanism.  This was working in early 2009, but was one of
the casualties of the big OMAP clock merge between 2.6.29 and 2.6.30.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

The CORE and PER M3 post dividers are different from the rest of the
DPLL post dividers as in they go to SCRM, and are used
there to export clocks for instance used by external sensor.

There is no automatic HW dependency in PRCM to manage them. Hence these
two clocks (dpll post dividers) should be managed by SW and explicitly
enabled/disabled.

Add control in clock framework to handle that.
Signed-off-by: NRajendra Nayak <rnayak@ti.com>
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Add support for auxiliary clocks nodes which are part of SCRM.
Signed-off-by: NRajendra Nayak <rnayak@ti.com>
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Add register address, mask and link to the clksel structure that
were missing in the IVA DPLL mux clock node.
Signed-off-by: NJonathan Bergsagel <jbergsagel@ti.com>
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>

This patch extends the OMAP4 clock data to include
various x2 clock nodes between DPLL and HS dividers as the
clock framework skips a x2 while calculating the dpll locked
frequency.

The clock database extensions are autogenerated using
the scripts maintained by Benoit Cousson.
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NThara Gopinath <thara@ti.com>
[paul@pwsan.com: fixed merge conflicts against v2.6.37-rc5; dropped
 dpll_mpu_x2_ck on advice from Benoît]
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>

The smartreflex modules belong to an ALWON_FCLK clock domain that
does not have any SW control. The gating of that interface clock
is triggered by a transition of the WKUP clock domain to idle.

Attach both smartreflex instances on OMAP3 to the WKUP clock domain.

The missing clock domain field in srX_fck clock nodes was reported by
Kevin during the discussion about smartreflex on OMAP3:
https://patchwork.kernel.org/patch/199342/Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>

The gating of pad_clks and slimbus_ck is controlled by the PRCM, but
since the clock source is external, this is the SW responsability
to gate / un-gate it when the mcpdm or slimbus module need to be used.
There is no autogating possible with such external clock.

Add SW control to enable / disable this SW gating in the pad_clks_ck
and slimbus_clk clock node.
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NSebastien Guiriec <s-guiriec@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>

Move the padconf save code from pm34xx.c to the System Control Module
code in mach-omap2/control.c.  This is part of the general push to
move direct register access from middle-layer core code to low-level
core code, so the middle-layer code can be abstracted to work on
multiple platforms and cleaned up.

In the medium-to-long term, this code should be called by the mux
layer code, not the PM idle code.  This is because, according to the
TRM, saving the padconf only needs to be done when the padconf
changes[1].
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Tony Lindgren <tony@atomide.com>
Tested-by: NRajendra Nayak <rnayak@ti.com>
Tested-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>

1. OMAP34xx Multimedia Device Silicon Revision 3.1.x [Rev. ZH] [SWPU222H]
   Section 4.11.4 "Device Off-Mode Sequences"

The OMAP powerdomain code and data is all OMAP2+-specific.  This seems
unlikely to change any time soon.  Move plat-omap/include/plat/powerdomain.h
to mach-omap2/powerdomain.h.  The primary point of doing this is to remove
the temptation for unrelated upper-layer code to access powerdomain code
and data directly.

As part of this process, remove the references to powerdomain data
from the GPIO "driver" and the OMAP PM no-op layer, both in plat-omap.
Change the DSPBridge code to point to the new location for the
powerdomain headers.  The DSPBridge code should not be including the
powerdomain headers; these should be removed.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Omar Ramirez Luna <omar.ramirez@ti.com>
Cc: Felipe Contreras <felipe.contreras@gmail.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>

The OMAP clockdomain code and data is all OMAP2+-specific.  This seems
unlikely to change any time soon.  Move plat-omap/include/plat/clockdomain.h
to mach-omap2/clockdomain.h.  The primary point of doing this is to remove
the temptation for unrelated upper-layer code to access clockdomain code
and data directly.

DSPBridge also uses the clockdomain headers for some reason, so,
modify it also. The DSPBridge code should not be including the
clockdomain headers; these should be removed.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Omar Ramirez Luna <omar.ramirez@ti.com>
Cc: Felipe Contreras <felipe.contreras@gmail.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Tested-by: NRajendra Nayak <rnayak@ti.com>
Tested-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>

Reverse some of the effects of commit
84c0c39a ("ARM: OMAP4: PM: Make OMAP3
Clock-domain framework compatible for OMAP4").  On OMAP2/3, the
CM_CLKSTCTRL register is at a constant offset from the powerdomain's
CM instance.

Also, remove some of the direct CM register access from the
clockdomain code, moving it to the OMAP2/3 CM code instead.  The
intention here is to simplify the clockdomain code.  (The long-term
goal is to move all direct CM register access across the OMAP core
code to the appropriate cm*.c file.)
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Tested-by: NRajendra Nayak <rnayak@ti.com>
Tested-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>

Add PRCM partition, CM instance register address offset, and clockdomain
register address offset to each OMAP4 struct clockdomain record.  Add OMAP4
clockdomain code to use this new data to access registers properly.

While here, clean up some nearby clockdomain code to allocate auto variables
in my recollection of Linus's preferred style.

The autogeneration scripts have been updated.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Tested-by: NRajendra Nayak <rnayak@ti.com>
Tested-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>

In OMAP4 CM instances, some registers (CM_CLKSTCTRL, CM_STATICDEP,
CM_DYNAMICDEP, and the module-specific registers underneath) are
organized by clockdomain.  Add the clockdomain offset macros to the
appropriate PRCM module header files.

This data was almost completely autogenerated from the TI hardware
database; the autogeneration scripts have been updated.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Tested-by: NRajendra Nayak <rnayak@ti.com>
Tested-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>