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From Tony Lindgren:
omap prcm changes via Paul Walmsley <paul@pwsan.com>:
Some miscellaneous OMAP hwmod changes for 3.8, along with a PRM
change needed for one of the hwmod patches to function.
Basic test logs for this branch on top of Tony's
omap-for-v3.8/clock branch at commit
558a0780b0a04862a678f7823215424b4e5501f9 are here:
http://www.pwsan.com/omap/testlogs/hwmod_devel_a_3.8/20121121161522/
However, omap-for-v3.8/clock at 558a0780 does not include some fixes
that are needed for a successful test. With several reverts,
fixes, and workarounds applied, the following test logs were
obtained:
http://www.pwsan.com/omap/testlogs/TEST_hwmod_devel_a_3.8/20121121162719/
which indicate that the series tests cleanly.
* tag 'omap-for-v3.8/devel-prcm-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (49 commits)
ARM: OMAP2+: omap_device: Correct resource handling for DT boot
ARM: OMAP2+: hwmod: Add possibility to count hwmod resources based on type
ARM: OMAP2+: hwmod: Add support for per hwmod/module context lost count
ARM: OMAP2+: PRM: initialize some PRM functions early
ARM: OMAP2+: clock: Cleanup !CONFIG_COMMON_CLK parts
ARM: OMAP2xxx: clock: drop obsolete clock data
ARM: OMAP2: clock: Cleanup !CONFIG_COMMON_CLK parts
ARM: OMAP3+: DPLL: drop !CONFIG_COMMON_CLK sections
ARM: AM33xx: clock: drop obsolete clock data
ARM: OMAP3xxx: clk: drop obsolete clock data
ARM: OMAP3: clock: Cleanup !CONFIG_COMMON_CLK parts
ARM: OMAP44xx: clock: drop obsolete clock data
ARM: OMAP4: clock: Cleanup !CONFIG_COMMON_CLK parts
ARM: OMAP: hwmod: Cleanup !CONFIG_COMMON_CLK parts
ARM: OMAP: clock: Switch to COMMON clk
ARM: OMAP2: clock: Add 24xx data using common struct clk
ARM: OMAP3: clock: Add 3xxx data using common struct clk
ARM: AM33XX: clock: add clock data in common clock format
ARM: OMAP4: clock: Add 44xx data using common struct clk
ARM: OMAP2+: clock: add OMAP CCF convenience macros to mach-omap2/clock.h
...
Some context conflicts due to nearby changes resolved in
arch/arm/mach-omap2/io.c.
Signed-off-by: Olof Johansson <olof@lixom.net>
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OMAP4 has module specific context lost registers which makes it now
possible to have module level context loss count, instead of relying
on the powerdomain level context count.
Add 2 private hwmod api's to update/clear the hwmod/module specific
context lost counters/register.
Update the module specific context_lost_counter and clear the hardware
bits just after enabling the module.
omap_hwmod_get_context_loss_count() now returns the hwmod context loss
count them on platforms where they exist (OMAP4), else fall back on
the pwrdm level counters for older platforms.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: added function kerneldoc, fixed structure kerneldoc,
rearranged structure to avoid memory waste, marked fns as OMAP4-specific,
prevent fn entry on non-OMAP4 chips, reduced indentation, merged update
and clear, merged patches]
[t-kristo@ti.com: added support for arch specific hwmod ops, and changed
the no context offset indicator to USHRT_MAX]
Signed-off-by: Tero Kristo <t-kristo@ti.com>
[paul@pwsan.com: use NO_CONTEXT_LOSS_BIT flag rather than USHRT_MAX;
convert unsigned context lost counter to int to match the return type;
get rid of hwmod_ops in favor of the existing soc_ops mechanism;
move context loss low-level accesses to the PRM code]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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From Tony Lindgren <tony@atomide.com>:
More PRCM cleanups via Paul Walmsley <paul@pwsan.com>:
Second set of OMAP PRCM cleanups for 3.8.
These patches remove the use of omap_prcm_get_reset_sources() from the
OMAP watchdog driver, and remove mach-omap2/prcm.c and
plat-omap/include/plat/prcm.h.
Basic test logs for this branch on top of Tony's cleanup-prcm branch
at commit 7fc54fd3084457c7f11b9e2e1e3fcd19a3badc33 are here:
http://www.pwsan.com/omap/testlogs/prcm_cleanup_b_3.8/20121108151646/
However, cleanup-prcm at 7fc54fd3 does not include some fixes
that are needed for a successful test. With several reverts,
fixes, and workarounds applied, the following test logs were
obtained:
http://www.pwsan.com/omap/testlogs/TEST_prcm_cleanup_b_3.8/20121108151930/
which indicate that the series tests cleanly.
This second pull request updates one of the patches which broke
with rmk's allnoconfigs, and also updates the tag description to
indicate that 7fc54fd3 is building cleanly here.
* tag 'omap-for-v3.8/cleanup-prcm-part2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (27 commits)
ARM: OMAP2: Fix compillation error in cm_common
ARM: OMAP2+: PRCM: remove obsolete prcm.[ch]
ARM: OMAP2+: hwmod: call to _omap4_disable_module() should use the SoC-specific call
ARM: OMAP2+: PRCM: consolidate PRCM-related timeout macros
ARM: OMAP2+: PRCM: split and relocate the PRM/CM globals setup
ARM: OMAP2+: PRCM: remove omap2_cm_wait_idlest()
ARM: OMAP2+: CM/clock: convert _omap2_module_wait_ready() to use SoC-independent CM functions
ARM: OMAP2xxx: APLL/CM: convert to use omap2_cm_wait_module_ready()
ARM: OMAP2+: board files: use SoC-specific system restart functions
ARM: OMAP2+: PRCM: create SoC-specific chip restart functions
ARM: OMAP2xxx: clock: move virt_prcm_set code into clkt2xxx_virt_prcm_set.c
ARM: OMAP2xxx: clock: remove global 'dclk' variable
ARM: OMAP2/3: PRM: add SoC reset functions (using the CORE DPLL method)
ARM: OMAP2+: common: remove mach-omap2/common.c globals and map_common_io code
ARM: OMAP2+: PRCM: remove omap_prcm_get_reset_sources()
watchdog: OMAP: use standard GETBOOTSTATUS interface; use platform_data fn ptr
ARM: OMAP2+: WDT: move init; add read_reset_sources pdata function pointer
ARM: OMAP1: CGRM: fix omap1_get_reset_sources() return type
ARM: OMAP2+: PRM: create PRM reset source API for the watchdog timer driver
ARM: OMAP1: create read_reset_sources() function (for initial use by watchdog)
...
Conflicts:
arch/arm/mach-omap2/cm33xx.c
arch/arm/mach-omap2/io.c
arch/arm/mach-omap2/prm_common.c
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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arch/arm/mach-omap2/prcm.c and arch/arm/plat-omap/include/plat/prcm.h
are now completely unused and can be removed.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
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Split omap2_set_globals_prcm() into PRM, CM, and PRCM_MPU variants, since
these are all separate IP blocks. This should make it easier to move the
PRM, CM, PRCM_MPU code into drivers/ in future patchsets.
At this point arch/arm/plat-omap/include/plat/prcm.h is empty; a
subsequent patch will remove it, and remove the #include from all the
files that #include it.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com>
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Most of the prototypes in plat-omap/common.h are not
common to omap1 and omap2+, they are local to omap2+
and should not be in plat-omap/common.h.
The only shared function prototype in this file is
omap_init_clocksource_32k(), let's put that into
counter-32k.h.
Note that the new plat/counter-32k.h must not be
included from drivers, that will break omap2+ build
for CONFIG_MULTIPLATFORM.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The first set of OMAP PRM/CM-related cleanup patches for 3.8.
Prepares for the future move of the PRM/CM code to drivers/. Also
includes some prcm.[ch] cleanup patches from the WDTIMER cleanup
series that don't need external acks.
Basic test logs for this branch on top of v3.7-rc2 are here:
http://www.pwsan.com/omap/testlogs/prcm_cleanup_a_3.8/20121021123719/
But due to the number of unrelated regressions present in v3.7-rc[12],
it's not particularly usable as a testing base. With reverts, fixes,
and workarounds applied as documented in:
http://www.pwsan.com/omap/testlogs/test_v3.7-rc2/20121020134755/README.txt
the following test logs were obtained:
http://www.pwsan.com/omap/testlogs/prcm_cleanup_a_3.8/20121020231757/
which indicate that the series tests cleanly.
Conflicts:
arch/arm/mach-omap2/Makefile
arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
arch/arm/mach-omap2/pm24xx.c
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The OMAP watchdog timer driver needs to determine what caused the SoC
to reset for its GETBOOTSTATUS ioctl. So, define a set of standard
reset sources across OMAP SoCs. For OMAP2xxx, 3xxx, and 4xxx SoCs,
define mappings from the SoC-specific reset source register bits to
the standardized reset source IDs. Create SoC-specific PRM functions
that read the appropriate per-SoC register and use the mapping to
return the standardized reset bits. Register the SoC-specific PRM
functions with the common PRM code via prm_register(). Create a
function in the common PRM code, prm_read_reset_sources(), that
calls the SoC-specific function, registered during boot.
This patch does not yet handle some SoCs, such as AM33xx. Those SoCs
were not handled by the code this will replace.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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There are several PRM operations which behave similarly across OMAP2+
SoCs, but which have slight differences in their underlying
implementations. For example, to fetch the SoC's last reset sources,
different registers are read across OMAP2xxx, 3xxx, and 44xx, and
different bits are used on each SoC. But the information returned is
so similar that a single, common interface for drivers is useful.
This patch creates the support code for this function pointer
registration process. No function pointers are included yet, but a
subsequent patch will create one for the reset source API.
To illustrate the end goal with the above reset source example, each
per-SoC driver will use its own low-level implementation function --
e.g., prm2xxx.c would contain omap2xxx_prm_read_reset_sources(). This
function would read the appropriate register and remap the register
bits to a standard set of reset source bits. When the prm2xxx.c
driver is loaded, it would register this function with the common PRM
driver, prm.c. prm.c would then export a common function,
omap_prm_read_reset_sources(). Calling it would call through to the
function pointer for the currently-registered SoC PRM driver. This
will allow other drivers to use PRM-provided data and operations
without needing to know which SoC is currently in use.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Remove the now-unused PRM weak functions from prm_common.c. These
were formerly used to ensure that some OMAP2/3 PRM code would build on
OMAP4, but none of those functions ever would have worked on OMAP4 due
to an incompatible PRM register layout. Now all that has been cleaned
up and these can be removed.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Reviewed-by: Russ Dill <Russ.Dill@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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We cannot keep this in plat/common.h for common zImage support.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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As the interrupts should only be defined in the platform_data, and
eventually coming from device tree, there's no need to define them
in header files.
Let's remove the hardcoded references to irqs.h and fix up the includes
so we don't rely on headers included in irqs.h. Note that we're
defining OMAP_INTC_START as 0 to the interrupts. This will be needed
when we enable SPARSE_IRQ. For some drivers we need to add
#include <plat/cpu.h> for now until these drivers are fixed to
remove cpu_is_omapxxxx() usage.
While at it, sort som of the includes the standard way, and add
the trailing commas where they are missing in the related data
structures.
Note that for drivers/staging/tidspbridge we just define things
locally.
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Pull arm-soc cleanups, part 2, from Arnd Bergmann:
"These omap cleanups have dependencies on earlier omap branches that in
turn depend on other cleanups, so they could not go into the same
branch."
* tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: OMAP: sdrc: Fix the build break for OMAP4 only builds
ARM: OMAP2+: dmtimer: cleanup fclk usage
ARM: OMAP2+: Fix mismerge for omap_hwmod_get_main_clk() API
ARM: OMAP2+: Remove unnecessary ifdef around __omap2_set_globals
ARM: OMAP2+: am33xx: Change cpu_is_am33xx to soc_is_am33xx
ARM: OMAP2+: am33xx: Make am33xx as a separate class
ARM: OMAP2+: Move omap3 dpll ops to dpll3xxx.c
ARM: OMAP2+: All OMAP2PLUS uses omap-device.o target so add one entry
ARM: OMAP: dmtimer: use devm_ API and do some cleanup in probe()
ARM: OMAP2+: hwmod code: add support to set dmadisable in hwmod framework
ARM: OMAP2+: PRM/CM: Move the stubbed prm and cm functions to prcm.c file and make them __weak
ARM: OMAP2+: hwmod: add omap_hwmod_get_main_clk() API
ARM: OMAP3+: dpll: optimize noncore dpll locking logic
ARM: OMAP3: control: add definition for CONTROL_CAMERA_PHY_CTRL
ARM: OMAP2+: powerdomain code: Fix Wake-up power domain power status
ARM: OMAP4: clockdomain/CM code: Update supported transition modes
ARM: OMAP3/4: omap_hwmod: Add rstst_offs field to struct omap_hwmod_omap4_prcm
ARM: OMAP2+: hwmod: Add new sysc_type3 into omap_hwmod required for am33xx
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Some prm and cm registers read/write and status functions
are built only for some custom OMAP2+ builds and are stubbed
in header files for other builds under ifdef statements.
But this results in adding new CONFIG_ARCH_OMAPXXX
checks when SOCs are added in the future. So move them
to a common place for OMAP2+ and make them 'weak' implementations.
This way no new ifdefs would be required in the future and also
cleans up the existing code.
Signed-off-by: R Sricharan <r.sricharan@ti.com>
[paul@pwsan.com: unsplit quoted strings; moved PRM functions to
mach-omap2/prm_common.c; resolved sparse warnings]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Using nr_irqs as local variable name triggers the sparse warning..
./arch/arm/mach-omap2/irq.c:265:6: warning: symbol 'nr_irqs' shadows an earlier one
./linux/include/linux/irqnr.h:26:12: originally declared here
Signed-off-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Resolve some warnings identified by cppcheck in arch/arm/mach-omap2:
[arch/arm/mach-omap2/usb-tusb6010.c:129]: (style) Checking if unsigned variable 'tmp' is less than zero.
[arch/arm/mach-omap2/prm_common.c:241]: (error) Possible null pointer dereference: irq_setup - otherwise it is redundant to check if irq_setup is null at line 247
[arch/arm/mach-omap2/pm34xx.c:790]: (style) Variable 'per_clkdm' is assigned a value that is never used
[arch/arm/mach-omap2/pm34xx.c:790]: (style) Variable 'core_clkdm' is assigned a value that is never used
[arch/arm/mach-omap2/pm24xx.c:185]: (style) Variable 'only_idle' is assigned a value that is never used
[arch/arm/mach-omap2/mux.c:254]: (error) Possible null pointer dereference: mux
[arch/arm/mach-omap2/mux.c:258]: (error) Possible null pointer dereference: mux
[arch/arm/mach-omap2/gpmc-onenand.c:178]: (style) Variable 'tick_ns' is assigned a value that is never used
[arch/arm/mach-omap2/gpio.c:56]: (error) Possible null pointer dereference: pdata - otherwise it is redundant to check if pdata is null at line 57
[arch/arm/mach-omap2/devices.c:45]: (style) Variable 'l' is assigned a value that is never used
[arch/arm/mach-omap2/board-omap3evm.c:641] -> [arch/arm/mach-omap2/board-omap3evm.c:639]: (style) Found duplicate branches for if and else.
[arch/arm/mach-omap2/am35xx-emac.c:95]: (style) Variable 'regval' is assigned a value that is never used
[arch/arm/mach-omap2/devices.c:74]: (style) Variable 'l' is assigned a value that is never used
[arch/arm/mach-omap2/pm34xx.c:277]: (style) Variable 'per_prev_state' is assigned a value that is never used
[arch/arm/plat-omap/dmtimer.c:352]: (error) Possible null pointer dereference: timer - otherwise it is redundant to check if timer is null at line 354
[arch/arm/plat-omap/omap_device.c:478]: (style) Variable 'c' is assigned a value that is never used
[arch/arm/plat-omap/usb.c:42]: (style) Variable 'status' is assigned a value that is never used
[arch/arm/mach-omap1/clock.c:197]: (style) Variable 'dpll1_rate' is assigned a value that is never used
[arch/arm/mach-omap1/lcd_dma.c:60]: (style) struct or union member 'lcd_dma_info::size' is never used
[arch/arm/mach-omap1/pm.c:572]: (style) Variable 'entry' is assigned a value that is never used
Some of them are pretty good catches, such as gpio.c:56 and
usb-tusb6010.c:129.
Thanks to Jarkko Nikula for some comments on the sscanf() warnings.
It seems that the kernel sscanf() ignores the field width anyway for the
%d format, so those changes have been dropped from this second version.
Thanks to Daniel Marjamäki <daniel.marjamaki@gmail.com> for pointing
out that a variable was unnecessarily marked static in the
board-omap3evm.c change.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Jarkko Nikula <jarkko.nikula@bitmer.com>
Cc: Charulatha Varadarajan <charu@ti.com>
Cc: Daniel Marjamäki <daniel.marjamaki@gmail.com>
Cc: Tarun Kanti DebBarma <tarun.kanti@ti.com>
Reviewed-by: Charulatha Varadarajan <charu@ti.com> # for gpio.c
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This patch fixes the oops below[1].
Obviously, the count of "struct irq_chip_generic" instances to be
allocated and setup should be irq_setup->nr_regs instead of
irq_setup->nr_regs plus one, so just fix the iterator to avoid
the oops.
[1], oops log.
[ 1.790242] Unable to handle kernel NULL pointer dereference at virtual address 00000004
[ 1.798632] pgd = c0004000
[ 1.801638] [00000004] *pgd=00000000
[ 1.805400] Internal error: Oops: 805 [#1] PREEMPT SMP THUMB2
[ 1.811381] Modules linked in:
[ 1.814601] CPU: 1 Not tainted (3.3.0-next-20120320+ #733)
[ 1.820683] PC is at irq_setup_generic_chip+0x6a/0x84
[ 1.825951] LR is at irq_get_irq_data+0x7/0x8
[ 1.830508] pc : [<c006465e>] lr : [<c0063a03>] psr: 20000133
[ 1.830512] sp : ee04ff58 ip : 00000000 fp : 00000000
[ 1.842461] r10: 00000000 r9 : 00000000 r8 : 00000800
[ 1.847905] r7 : c064e260 r6 : 000001dc r5 : 00000001 r4 : ee0accc0
[ 1.854687] r3 : 00000002 r2 : 00000800 r1 : 000001dc r0 : 00000000
[ 1.861472] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA Thumb Segment kernel
[ 1.869234] Control: 50c5387d Table: 8000404a DAC: 00000015
[ 1.875215] Process swapper/0 (pid: 1, stack limit = 0xee04e2f8)
[ 1.881463] Stack: (0xee04ff58 to 0xee050000)
[ 1.886017] ff40: c061b668 00000008
[ 1.894497] ff60: c0682090 ee0accc0 00000003 c001c637 00000000 00000000 00000201 00000000
[ 1.902976] ff80: 00000004 c0473820 c0473800 c0459e8d c0680ac0 c000866d 00000004 00000004
[ 1.911455] ffa0: ee04ffa8 00000004 c047381c 00000004 c0473820 c0473800 c0680ac0 00000082
[ 1.919934] ffc0: c0489694 c045265f 00000004 00000004 c0452135 c000d105 00000033 00000000
[ 1.928413] ffe0: c04525b5 c000d111 00000033 00000000 00000000 c000d111 aaaaaaaa aaaaaaaa
[ 1.936912] [<c006465e>] (irq_setup_generic_chip+0x6a/0x84) from [<c001c637>] (omap_prcm_register_chain_handler+0x147/0x1a0)
[ 1.948516] [<c001c637>] (omap_prcm_register_chain_handler+0x147/0x1a0) from [<c000866d>] (do_one_initcall+0x65/0xf4)
[ 1.959500] [<c000866d>] (do_one_initcall+0x65/0xf4) from [<c045265f>] (kernel_init+0xab/0x138)
[ 1.968529] [<c045265f>] (kernel_init+0xab/0x138) from [<c000d111>] (kernel_thread_exit+0x1/0x6)
[ 1.977632] Code: f7ff f9d1 6b23 1af3 (6043) 086d
[ 1.982684] ---[ end trace 1b75b31a2719ed1c ]---
[ 1.987526] Kernel panic - not syncing: Attempted to kill init!
exitcode=0x0000000b
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
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When this is the only content remaining in mach/system.h then the
whole file is removed.
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-and-tested-by: Jamie Iles <jamie@jamieiles.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: David Brown <davidb@codeaurora.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
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PRCM chain handler needs to disable forwarding of interrupts during
suspend, because runtime PM is disabled and most of the drivers
are potentially not able to handle interrupts coming at this time.
This patch masks all the PRCM interrupt events if a PRCM interrupt
occurs during suspend, but does not ack them. Once suspend finish
is called, all the masked events will be re-enabled, which causes
immediate PRCM interrupt and handles the postponed event.
The suspend prepare and complete callbacks will be called from
pm34xx.c / pm44xx.c files in the following patches.
The functions defined in this patch should eventually be moved to
suspend->prepare and suspend->finish driver hooks, once the PRCM
chain handler will be made as its own driver.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
[paul@pwsan.com: add kerneldoc, add omap_prcm_irq_setup.saved_mask, add fn
ptrs for save_and_clear_irqen() and restore_irqen()]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Introduce a chained interrupt handler mechanism for the PRCM
interrupt, so that individual PRCM event can cleanly be handled by
handlers in separate drivers. We do this by introducing PRCM event
names, which are then matched to the particular PRCM interrupt bit
depending on the specific OMAP SoC being used.
PRCM interrupts have two priority levels, high or normal. High priority
is needed for IO event handling, so that we can be sure that IO events
are processed before other events. This reduces latency for IO event
customers and also prevents incorrect ack sequence on OMAP3.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Avinash.H.M <avinashhm@ti.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Govindraj.R <govindraj.raja@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
[paul@pwsan.com: drop some dead code; use SoC-specific pending IRQ
detection; move code to prm_common.c; add lots of documentation;
remove saved_mask; add OCP barrier on ISR exit; improved error
handling; split out per-SoC initialization to a separate patch]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
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Olof Johansson
Rajendra Nayak
Arnd Bergmann
Paul Walmsley
Tony Lindgren
Linus Torvalds
R Sricharan
Venkatraman S
Ming Lei
Nicolas Pitre
Tero Kristo