At some point while adding omap2 support, IS_OMAP_CLASS broke as pointed out
by Russell King. Fix this to work as it used to work, and modify omap24xx and
omap34xx detection to work accordingly.

Also rename OMAP3430_REV_ES2_2 to OMAP3430_REV_ES3_0.
Signed-off-by: Tony Lindgren <tony@atomide.com>

Also add omap_type() to detect between GP/EMU/HS omap, and remove
unnecessary variable class.

This is to make room for further clean-up of omap processor detection.
Signed-off-by: Tony Lindgren <tony@atomide.com>

As pointed out by Felipe Balbi.
Signed-off-by: Tony Lindgren <tony@atomide.com>

At this point, all OMAP2/3 clocks should be associated with a clockdomain.
Warn in clk_register() if any are missing a clockdomain
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

The OMAP3 arch clock init code already calls omap2_init_clk_clkdm(), so there
is no reason to call it again in the per-clock init.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Every OMAP2/3 clock will need to be associated with a clockdomain.
However, the "virt_prcm_set" clock has no clockdomain, since it is a
virtual clock without any hardware referents.  So, create a new
clockdomain, "virt_clkdm", for this clock.  This clockdomain should be
reusable for OMAP3 virtual clock nodes.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Fill in clockdomains for all remaining clocks.  On OMAP2, these mostly
involve IVA and DSP clocks; on OMAP3, these mostly involve some core_l4_clkdm
devices and the secure peripherals.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Mark each DPLL clock as belonging to their respective DPLL clockdomain.
cf. 34xx TRM Table 4-27 (among other references).
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Each DPLL exists in its own powerdomain (cf 34xx TRM figure 4-18) and
clockdomain; so, create powerdomain and clockdomain structures for them.
These are used in a following patch for DPLL-related clocks.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Remove wkup_clkdm, as it has been completely replaced by prm_clkdm and
cm_clkdm.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Mark CM clocks with no clockdomain as belonging to the CM clockdomain.

References for the OMAP3xxx clocks:

OMAP34xx Multimedia Device Silicon Revision 3.0 Version I TRM
  Figure 4-13:
     - sys_ck
  Figure 4-35:
     - sys_clkout2
  Figure 4-37:
     - corex2_fck, core_ck, dss_tv_fck
  Figure 4-38:
     - omap_96m_alwon_fck
  Figure 4-39:
     - corex2_fck, cm_96m_fck, omap_96m_fck, omap_54m_fck, omap_12m_fck,
       dpll1_fck, dpll2_fck, rm_ick, dss_tv_fck
  Section 4.7.3.2:
     - omap_96m_alwon_fck, omap_96m_fck, omap_48m_fck

OMAP34xx Multimedia High Security (HS) Device Silicon Revision 3.0 Security
Addendum Version B TRM
  Figure 3-19:
     - cpefuse_fck
  Table 3-57:
     - dss_tv_fck
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Convert existing wkup_clkdm clocks that should be in the CM clockdomain
to cm_clkdm.  (A later patch will add CM clockdomain associations for
unassociated clocks.)

References:

OMAP2420 Multimedia Processor Silicon Revision 2.1.1, 2.2 TRM Version Q
   Figure 5-9
      - func_54m_ck, core_ck, func_96m_ck, func_48m_ck, func_12m_ck

OMAP34xx Multimedia Device Silicon Revision 3.0 Version I TRM
   Figure 4-35
      - sys_clkout2
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Some PRM clocks are missing clockdomain assignments; add them.

Also, in OMAP2xxx clock tree, standardize the name for wdt1_osc_ck.

References for the OMAP2xxx clocks:

OMAP2420 Multimedia Processor Silicon Revision 2.1.1, 2.2 TRM Version Q
  Table 18-41:
      - wdt1_osc_ck

References for the OMAP3xxx clocks:

OMAP34xx Multimedia Device Silicon Revision 3.0 Version I TRM
  Figure 4-13:
      - sys_clkout1,
  Table 4-37:
      - sys_ck
  Table 4-38:
      - omap_32k_fck, osc_sys_ck,
  Figure 4-56:
      - sr1_fck, sr2_fck
  Figure 4-57:
      - omap_96m_alwon_fck
  Section 4.7.7.13:
      - sr1_fck, sr2_fck

OMAP34xx Multimedia High Security (HS) Device Silicon Revision 3.0 Security
Addendum Version B TRM
  Table 2-5:
      - usim_fck
  Figure 3-29:
      - secure_32k_fck, gpt12_fck, wdt1_fck
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Convert existing wkup_clkdm clocks that should be in the PRM clockdomain
to prm_clkdm.  (A later patch will add PRM clockdomain associations for
unassociated clocks.)

References for the OMAP2xxx clocks:

OMAP2420 Multimedia Processor Silicon Revision 2.1.1, 2.2 TRM Version Q
  Figure 4-11:
      - alt_ck
  Figure 5-7:
      - func_32k_ck, osc_ck, sys_ck
  Figure 5-8 (assumes that "Level 0" = PRM)
      - dpll_ck, apll96_ck, apll54_ck, func_54m_ck
  Section 5.4.1.1:
      - sys_clkout_src, sys_clkout
  Section 29.3.1.1:
      - gpios_fck, mpu_wdt_fck, mpu_wdt_ick

References for the OMAP3xxx clocks:

OMAP34xx Multimedia Device Silicon Revision 3.0 Version I TRM
  Figure 4-54:
      - gpt1_fck, wkup_32k_fck, wdt2_fck, wkup_l4_fck, omap_32ksync_ick,
        gpt1_ick
  Section 25.3.1.1.3:
      - gpio1_fck, gpio1_ick

OMAP34xx Multimedia High Security (HS) Device Silicon Revision 3.0 Security
Addendum Version B TRM
  Table 2-5:
      - usim_ick
  Figure 3-29:
      - wdt1_ick, gpt12_ick
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add clockdomains for the CM and PRM.  These will ultimately replace the
"wkup_clkdm", which appears to not actually exist on the hardware.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

The mod_reg_security() function that is used to stack modules has been removed:
"LSMs wishing to stack capability as a secondary module should do so
explicitly". Thus, let's remove the possibility to stack in the init function.
The functionality could probably be reintroduced later if somebody has time to
implement it.
Signed-off-by: Viktor Rosendahl <viktor.rosendahl@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

A previous commit split the ptrace member into two. Thus we need to update the
lowmem module accordingly.
Signed-off-by: Viktor Rosendahl <viktor.rosendahl@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

This is a patch that will reintroduce the old sysctl lowmem variables as read
only values in /proc/sys/vm. Some parts of the userland (at least libosso) are
reading these and it would probably greatly ease the transition to the new
scheme with memory limits in pages. We can revert this ugly patch when userland
has moved to the new scheme.
Signed-off-by: Viktor Rosendahl <viktor.rosendahl@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

The unregister_security() and mod_unreg_security() functions were removed
because the upstream developers believe that it should not be possible to remove
security modules, "It is used only by out-of-tree modules, which are often
binary-only, illegal, abusive of the API and dangerous, e.g.  silently
re-vectoring SELinux."
Signed-off-by: Viktor Rosendahl <viktor.rosendahl@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

These functions now require an additional argument, so let's add it.
Signed-off-by: Viktor Rosendahl <viktor.rosendahl@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Currently, the lowmem module doesn't even compile because the kernel API has
changed. This patch will unbreak the sysfs related code.
Signed-off-by: Viktor Rosendahl <viktor.rosendahl@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

This "changed" variable is kind of deprecated. We used to have a spinlock
[which was later deemed unecessary] around the first if clause in the
*_watermark_state() functions; the variable was needed in order to move the
operation in the second if clause out of the lock section.
Signed-off-by: Viktor Rosendahl <viktor.rosendahl@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

The purpose of this patch is to get rid of the lame percentage calculations in
lowmem.c. Currently, the limits (measured in pages) are calculated from
percentages every time somebody from userspace requests some memory. With this
patch, the limits are in pages and furthermore, they are specified as minimum
amount of "free pages", instead of as maximum amount of "used pages". "Free"
means free pages or such pages that can easily be freed by the VM system.

This patch changes the names of the lowmem sysctl limits in /proc/sys/vm:
lowmem_deny_watermark  	     => lowmem_deny_watermark_pages
lowmem_notify_low	     => lowmem_notify_low_pages
lowmem_notify_high 	     => lowmem_notify_high_pages

The following read only value disappears:
lowmem_used_pages

The following read only value is introduced:
lowmem_free_pages

The old value can be calculated from userspace with the following pseudocode:

if lowmem_free_pages < lowmem_allowed_pages
   lowmem_used_pages = lowmem_allowed_pages - lowmem_free_pages
else
   lowmem_used_pages = 0;

Note that the value of lowmem_free_pages is only accurate when the system is
rather low on memory (otherwise it's a bit too pessimistic), this was true also
for the lowmem_used_pages metric.
Signed-off-by: Viktor Rosendahl <viktor.rosendahl@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

As far as I can understand, using proc_dointvec_minmax() instead of
proc_dointvec only makes sense if you supply the min and/or max values in the
extra1 and extra2 fields of the struct.
Signed-off-by: Viktor Rosendahl <viktor.rosendahl@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Security: Kernel OOM-killer and allocation denial use different rules

Original patch created by Leonid Moiseichuk <leonid.moiseichuk@nokia.com>

Fixes the issue with the oom killer and lowmem module being inconsistent;
processes that are important enough to be protected from the oom killer should
not be denied memory either.
Signed-off-by: Henrik Saari <henrik.saari@nokia.com>
Signed-off-by: Viktor Rosendahl <viktor.rosendahl@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Make the twl4030 RTC initialization follow the driver model better.
The platform device is created (if needed) as part of twl4030 setup
instead of as a board-specific thing, and fits properly into the
driver model tree.

The only minor glitch here is on boards using platform_data to pass
MSECURE initialization hooks to the RTC driver.  The right solution
probably just removes that platform_data, and might even make Linux
follow the principle of "least privilege" (at the hardware level!)
instead of always holding this signal high.

Pending better handling of MSECURE, this patch just does what the
RTC init does, but earlier:  MSECURE is always high, so the RTC time
and calendar registers can be updated (and presumably a bunch of
non-RTC privileged operations will be allowed too).

Yet to be done:  set up the IRQ resource; make the rtc driver use
that IRQ resource; and properly issue wakeup alarms.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Remove more bogus arch_initcall() logic in mach-omap2/board-xyx.c files.
They broke a multi-OMAP build I did, at *RUN TIME* not build time, since
it tried to do the i2c init for every board linked in the kernel.

Remember, init_machine() entries run at arch_initcall() time; that's
where any board-specific init logic should normally go.  Any initcalls
in the mach-*/*c files should normally be guarded by tests to make sure
they only run on the relevant hardware (board, cpu).  Better yet, get
rid of the initcalls; init_machine() can *explicitly* call the right
version of that code, and pass in board-specific config data; and there
are hooks that can handle cpu-specific stuff too.

A quick glance suggests most of the remaining initcall logic in the
mach-omap2 directory is similarly broken... this patch gets rid of
one frequently-cloned idiom, it should help.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Also add missing u8 data as noted by Felipe Balbi.
Signed-off-by: Peter 'p2' De Schrijver <peter.de-schrijver@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Clean-up MMC device init:

- Initialize devices in mach-omap1/devices.c and mach-omap2/devices.c
  instead of plat-omap/devices.c

- Remove old struct omap_mmc_config, use struct omap_mmc_platform_data instead

Note that this removes the second omap-hsmmc controller init for overo.
This needs to be fixed properly by changing hsmmc_init() to accept
board specific struct omap_mmc_platform_data.
Signed-off-by: Tony Lindgren <tony@atomide.com>

This is to sync with Russell's commit 7736c09c.
Signed-off-by: Tony Lindgren <tony@atomide.com>

Smartreflex modules have to be disabled when device enters WFI.
Previously only suspend idle path had these calls. By moving the
disable/enable calls to omap_sram_idle, all idle paths will be covered.
Signed-off-by: Kalle Jokiniemi <ext-kalle.jokiniemi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

When git kernel tree is used on a OMAP3EVM board file for touch screen
testing, it shows lot of jitter. With this patch the jitter can be
reduced.
Signed-off-by: Naveen Atmakuri <anaveen@mistralsolutions.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP: OMAP34XXCAM: Camera Base Address.

Adding OMAP 3 Camera registers base address, and Platform Device.
Signed-off-by: Sergio Aguirre <saaguirre@ti.com>
Signed-off-by: Sameer Venkatraman <sameerv@ti.com>
Signed-off-by: Mohit Jalori <mjalori@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

This patch loads the triton2 (twl4030) with scripts that will cut off VDD1
and VDD2 voltages when SYS_OFF_MODE signal is set.
Signed-off-by: Peter 'p2' De Schrijver <peter.de-schrijver@nokia.com>
Signed-off-by: Kalle Jokiniemi <ext-kalle.jokiniemi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add sysfs cover_switch with the status of cover.
Signed-off-by: Francisco Alecrim <francisco.alecrim@indt.org.br>
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add slot_name entry to sysfs.
Signed-off-by: Francisco Alecrim <francisco.alecrim@indt.org.br>
Acked-by: Anderson Lizardo <anderson.lizardo@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Re-organizing some goto at hsmmc probe.
Signed-off-by: Francisco Alecrim <francisco.alecrim@indt.org.br>
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Readable output for IRQ status register
Signed-off-by: Francisco Alecrim <francisco.alecrim@indt.org.br>
Acked-by: Anderson Lizardo <anderson.lizardo@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Do not try to call board specific suspend / resume functions if there
is no such.
Signed-off-by: Jouni Högander <jouni.hogander@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

ARM: OMAP3: Enable 4-bit support for HSMMC.

This patch provides the fix to enable 4-bit support for HSMMC.

Signed-off-by: Madhusudhan Chikkature<madhu.cr@ti.com>
Signed-off-by: purushotam<purushotam@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>