Commit Graph

55 Commits

Author SHA1 Message Date
Rob Herring 3e15135b98 sh: Kill off set_irq_flags usage
set_irq_flags is ARM specific with custom flags which have genirq
equivalents. Convert drivers to use the genirq interfaces directly, so we
can kill off set_irq_flags. The translation of flags is as follows:

IRQF_VALID -> !IRQ_NOREQUEST
IRQF_PROBE -> !IRQ_NOPROBE
IRQF_NOAUTOEN -> IRQ_NOAUTOEN

For IRQs managed by an irqdomain, the irqdomain core code handles clearing
and setting IRQ_NOREQUEST already, so there is no need to do this in
.map() functions and we can simply remove the set_irq_flags calls. Some
users also modify IRQ_NOPROBE and this has been maintained although it
is not clear that is really needed. There appears to be a great deal of
blind copy and paste of this code.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Simon Horman <horms@verge.net.au>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-sh@vger.kernel.org
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Magnus Damm <magnus.damm@gmail.com>
Link: http://lkml.kernel.org/r/1440889285-5637-4-git-send-email-robh@kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-09-16 16:53:39 +02:00
Thomas Gleixner bd0b9ac405 genirq: Remove irq argument from irq flow handlers
Most interrupt flow handlers do not use the irq argument. Those few
which use it can retrieve the irq number from the irq descriptor.

Remove the argument.

Search and replace was done with coccinelle and some extra helper
scripts around it. Thanks to Julia for her help!

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
2015-09-16 15:47:51 +02:00
Thomas Gleixner c497615c0c sh/intc: Prepare irq flow handlers for irq argument removal
The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.

Search and update was done with coccinelle and the invaluable help of
Julia Lawall.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Link: http://lkml.kernel.org/r/20150713151626.872605327@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-07-29 10:08:09 +02:00
Jiang Liu 8228a04896 sh/intc: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc
Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
already have a pointer to corresponding irq_desc.

Also replace generic_handle_irq with generic_handle_irq_desc() to avoid
looking up irq_desc again.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Link: http://lkml.kernel.org/r/20150713151626.792845830@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-07-29 10:08:08 +02:00
Thomas Gleixner 8b8149df9c sh/irq: Use access helper irq_data_get_affinity_mask()
This is a preparatory patch for moving irq_data struct members.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Link: http://lkml.kernel.org/r/20150713151626.713278346@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-07-29 10:08:08 +02:00
Jiang Liu d0abe2f3a9 sh/irq: Use irq accessor functions instead of open coded access
This is a preparatory patch for refactoring the internals if irq_data.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Link: http://lkml.kernel.org/r/20150713151626.616384365@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-07-29 10:08:07 +02:00
Thomas Gleixner 51b971b1b9 sh/intc: Fix race in installing chained IRQ handler
Fix a race where a pending interrupt could be received and the handler
called before the handler's data has been setup, by converting to
irq_set_chained_handler_and_data().

Search and conversion was done with coccinelle:

@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
-   BUG();
|
-irq_set_chained_handler(E1, E3);
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);

@@
expression E1, E2, E3;
@@
(
-if (irq_set_chained_handler(E1, E3) != 0)
-   BUG();
...
|
-irq_set_chained_handler(E1, E3);
...
)
-irq_set_handler_data(E1, E2);
+irq_set_chained_handler_and_data(E1, E3, E2);

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: linux-sh@vger.kernel.org
2015-06-25 11:57:50 +02:00
Thomas Gleixner beab99fe83 sh/intc: Fix potential race in installing chained IRQ handler
Fix a race where a pending interrupt could be received and the handler
called before the handler's data has been setup, by moving the call to
irq_set_chained_handler() after the function which sets up the handler
data.

Found by code inspection.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: linux-sh@vger.kernel.org
2015-06-25 11:57:19 +02:00
Geert Uytterhoeven 049d28048b sh: intc: Confine SH_INTC to platforms that need it
Currently the sh-intc driver is compiled on all SuperH and
non-multiplatform SH-Mobile platforms, while it's only used on a limited
number of platforms:
  - SuperH: SH2(A), SH3(A), SH4(A)(L) (all but SH5)
  - ARM: sh7372, sh73a0

Drop the "default y" on SH_INTC, make all CPU platforms that use it
select it, and protect all sub-options by "if SH_INTC" to fix this.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-08-22 12:28:16 +09:00
Linus Torvalds 75bcc84445 SH Driver Update for v3.16
* PM Runtime enhancements targeted for use with
   ARM-based Renesas R-Car Gen2 SoCs
 * Restrict INTC_USERIMASK to SH4A as it is only used there
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.15 (GNU/Linux)
 
 iQIcBAABAgAGBQJTkbZRAAoJENfPZGlqN0++PRMP/A7E8+jBUkYIK/khGQ8obkWs
 FfDsMN+Zgs+en+E99GARJhrBPuRfp+ySrgXPydHwD1f1sYLPDq8IWRXTfM8Ibce3
 hVSLqpWvVR/PoqIryvAbw8iDC/4ENN0cNEja2IWLSzoGXEnK53XSDJTHRIAwEaVg
 6OHPzXTteD/2qFRqC6ALtzS0dNVuImWXSEBui8Wwdt/5Kh6hmqf0hGNsWq1AKgZB
 yxBmEGTAfimy5iNQJc1JmPy5HX05ZLybRsjpwGwUHUfdI5tDdhMDyHTDtFJNB+Y3
 6sPIyWV61Eck7uUwfnDe7CstidMOvqhyOG5rsFlszu5MNZ2er4c9xmg6Tr0SRkFu
 Ck+SMekcqYG+lfOYdXpMpXkE1jQu2F1NhWNeOsdlK6M9OL7j/IcwxZ+mt5XW9qI2
 YLMCE7uatKln6p/CO18CPJqFzQi6sOXbGLKHAKQ0bXragmFdYHWUUDIClV2t2hW9
 CyVG6vSvFpkjwGD1nxB9kTSeXhhPO72Vow6fAD5/45wAoPrVu6Z7yfEj9pd4uYSp
 BQMtbtxGF03epSVe3kCS8qdoj+3Ehqb5rnjTZt5V8malO0VdstWZfFiggrbOCh6D
 3Ol8PcyiKF2QK/jwPSaVpvDs6e1KuuRKekIG9oiFS3MyTQh7rxpHh6YP9sUY19u5
 Qy1gACWjBwf27CTStq2s
 =1JA8
 -----END PGP SIGNATURE-----

Merge tag 'renesas-sh-drivers-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next

Pull SH driver update from Simon Horman:

 - PM Runtime enhancements targeted for use with ARM-based Renesas R-Car
   Gen2 SoCs

 - Restrict INTC_USERIMASK to SH4A as it is only used there

* tag 'renesas-sh-drivers-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  drivers: sh: Enable PM runtime for new R-Car Gen2 SoCs
  drivers: sh: pm_runtime implementation needs to suspend and resume devices
  drivers: sh: Restrict INTC_USERIMASK to SH4A
  drivers: sh: pm_runtime does not need idle callback
2014-06-06 11:44:09 -07:00
Geert Uytterhoeven 39c5abbc54 drivers: sh: Restrict INTC_USERIMASK to SH4A
register_intc_userimask() is called from sh4a code only.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> [r8a7779 legacy]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-26 10:45:02 +09:00
Thomas Gleixner 3670802223 sh: intc: Remove pointless irq_reserve_irqs() invocation
The preceding call to irq_create_identity_mapping() marks the
interrupt as allocated already. Remove the leftover.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Acked-by: Simon Horman <horms@verge.net.au>
Cc: linux-sh@vger.kernel.org
Link: http://lkml.kernel.org/r/20140507154339.189047829@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-05-16 14:05:21 +02:00
Laurent Pinchart 4f3068f605 sh: intc: Enable driver compilation with COMPILE_TEST
This helps increasing build testing coverage.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-02-18 09:22:21 +09:00
Paul Mundt 0dd4d5cbe4 sh: Fix up more fallout from pointless ARM __iomem churn.
It was already pointed out how to fix these cases before the offending
patches were merged, but unsurprisingly, that didn't happen. As this
change is entirely superfluous to begin with, simply shut things up by
casting everything away.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-10-15 14:08:48 +09:00
Paul Mundt d4b7c5db42 sh: intc: Fix up multi-evt irq association.
In the multi-evt case we were accidentally associating the parent IRQ,
fix this up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-08-20 14:51:50 +09:00
Paul Mundt 1026023705 sh: intc: Handle domain association for sparseirq pre-allocated vectors.
Presently it's assumed that the irqdomain code handles the irq_desc
allocation for us, but this isn't necessarily the case when we've
pre-allocated IRQs via sparseirq. Previously we had a -EEXIST check in
the code that attempted to trap these cases and simply update them
in-place, but this behaviour was inadvertently lost in the transition to
irqdomains.

This simply restores the previous behaviour, first attempting to let the
irqdomain core fetch the allocation for us, and falling back to an
in-place domain association in the extant IRQ case. Fixes up regressions
on platforms that pre-allocate legacy IRQs (specifically ARM-based
SH-Mobile platforms, as SH stopped pre-allocating vectors some time ago).

Reported-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-08-09 13:21:05 +09:00
Paul Mundt 1d6a21b0a6 sh: intc: initial irqdomain support.
Trivial support for irq domains, using either a linear map or radix tree
depending on the vector layout.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-08-01 17:13:46 +09:00
Paul Mundt 123df01e8e sh: intc: Allocate subgroup virq backing desc directly.
This switches to using irq_alloc_desc() directly for subgroup IRQs.
We still need to call activate_irq() on these in order to make them
requestable, at least up until these get moved in to their own irq
domain..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-13 12:08:36 +09:00
Paul Mundt be9c00295b sh: intc: Kill off deprecated dynamic IRQ API.
Now that all of the users have been converted away, kill off the remnants
of the old API.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-24 19:10:45 +09:00
Linus Torvalds f52b69f86e SuperH updates for 3.4 merge window
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.15 (GNU/Linux)
 
 iEYEABECAAYFAk91TL0ACgkQGkmNcg7/o7hEjwCgmuz6QQKkow7e5q0x7DR5Z2NH
 1YoAn3TpODDmpaBiou26uMRPhcR6e1qC
 =JCA0
 -----END PGP SIGNATURE-----

Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH updates from Paul Mundt.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: (25 commits)
  sh: Support I/O space swapping where needed.
  sh: use set_current_blocked() and block_sigmask()
  sh: no need to reset handler if SA_ONESHOT
  sh: intc: Fix up section mismatch for intc_ack_data
  sh: select ARCH_DISCARD_MEMBLOCK.
  sh: Consolidate duplicate _32/_64 unistd definitions.
  sh: ecovec: switch SDHI controllers to card polling
  sh: Avoid exporting unimplemented syscalls.
  sh: add platform_device for RSPI in setup-sh7757
  SH: pci-sh7780: enable big-endian operation.
  serial: sh-sci: fix a race of DMA submit_tx on transfer
  sh: dma: Collect up CHCR of SH7763, SH7764, SH7780 and SH7785
  sh: dma: Collect up CHCR of SH7723 and SH7730
  sh/next: Fix build fail by asm/system.h in asm/bitops.h
  arch/sh/drivers/dma/{dma-g2,dmabrg}.c: ensure arguments to request_irq and free_irq are compatible
  sh: cpufreq: Wire up scaling_available_freqs support.
  sh: cpufreq: notify about rate rounding fallback.
  sh: cpufreq: Support CPU clock frequency table.
  sh: cpufreq: struct device lookup from CPU topology.
  sh: cpufreq: percpu struct clk accounting.
  ...
2012-03-30 00:09:17 -07:00
Paul Mundt b448d6adf7 sh: intc: Fix up section mismatch for intc_ack_data
intc_ack_data is flagged as __init when it shouldn't be, causing section
mismatches in non-init paths like intc_set_ack_handle():

WARNING: drivers/built-in.o(.text+0x5d760):
Section mismatch in reference from the function
intc_set_ack_handle() to the function .init.text:intc_ack_data()
The function intc_set_ack_handle()
references the function __init intc_ack_data().
This is often because intc_set_ack_handle lacks a __init
annotation or the annotation of intc_ack_data is wrong.

Reported-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-03-29 00:28:19 +09:00
Rob Herring 0f55239348 sh: intc: remove dependency on NR_IRQS
SH intc has a compile time dependency on NR_IRQS. Make this dependency a
local define so that shmobile (and ARM in general) can have run-time
NR_IRQS setting.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-01-25 20:37:48 -06:00
Paul Mundt b59f9f9775 sh: intc: optimize intc IRQ lookup
This ensures that the sense/prio lists are sorted at registration time,
enabling us to use a simple binary search for an optimized lookup
(something that had been on the TODO for some time).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-24 17:41:55 +09:00
Paul Mundt 3037764213 sh: intc: Use IRQ_SET_MASK_OK_NOCOPY for intc_set_affinity.
intc_set_affinity() updates the cpumask in place, so there's no need for
the upper layer to do this itself.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-24 16:55:57 +09:00
Paul Mundt 29775df10f sh: intc: Kill off superfluous irq_shutdown hooking.
This already gets handled via disable, as per the notes in linux/irq.h.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-24 15:38:57 +09:00
Paul Mundt 5bbda4e4ac sh: intc: Prefer IRQCHIP_SKIP_SET_WAKE over a dummy set_wake callback.
It's possible to use IRQCHIP_SKIP_SET_WAKE to get the behaviour that
we're after, without having to bother with a dummy ->set_wake() callback
for the IRQ chip.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-24 14:54:10 +09:00
Paul Mundt 5fbebcbdb3 sh: intc: Make global intc controller counter static.
No need to expose this globally since it's only used for core accounting.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-01-24 14:07:18 +09:00
Linus Torvalds eb59c505f8 Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
* 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits)
  PM / Hibernate: Implement compat_ioctl for /dev/snapshot
  PM / Freezer: fix return value of freezable_schedule_timeout_killable()
  PM / shmobile: Allow the A4R domain to be turned off at run time
  PM / input / touchscreen: Make st1232 use device PM QoS constraints
  PM / QoS: Introduce dev_pm_qos_add_ancestor_request()
  PM / shmobile: Remove the stay_on flag from SH7372's PM domains
  PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume
  PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode
  PM: Drop generic_subsys_pm_ops
  PM / Sleep: Remove forward-only callbacks from AMBA bus type
  PM / Sleep: Remove forward-only callbacks from platform bus type
  PM: Run the driver callback directly if the subsystem one is not there
  PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers
  PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412.
  PM / Sleep: Merge internal functions in generic_ops.c
  PM / Sleep: Simplify generic system suspend callbacks
  PM / Hibernate: Remove deprecated hibernation snapshot ioctls
  PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled()
  ARM: S3C64XX: Implement basic power domain support
  PM / shmobile: Use common always on power domain governor
  ...

Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused
XBT_FORCE_SLEEP bit
2012-01-08 13:10:57 -08:00
Rafael J. Wysocki 0f966d74cf PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume
Since the SH7372's INTCS in included into syscore suspend/resume,
which causes the chip to be accessed when PM domains have been
turned off during system suspend, the A4R domain containing the
INTCS has to stay on during system sleep, which is suboptimal
from the power consumption point of view.

For this reason, add a new INTC flag, skip_syscore_suspend, to mark
the INTCS for intc_suspend() and intc_resume(), so that they don't
touch it.  This allows the A4R domain to be turned off during
system suspend and the INTCS state is resrored during system
resume by the A4R's "power on" code.

Suggested-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Magnus Damm <damm@opensource.se>
2011-12-25 23:39:11 +01:00
Kay Sievers f4e73bfcd9 sh: intc - convert sysdev_class to a regular subsystem
After all sysdev classes are ported to regular driver core entities, the
sysdev implementation will be entirely removed from the kernel.

Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-21 15:09:52 -08:00
Linus Torvalds 32aaeffbd4 Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
  Revert "tracing: Include module.h in define_trace.h"
  irq: don't put module.h into irq.h for tracking irqgen modules.
  bluetooth: macroize two small inlines to avoid module.h
  ip_vs.h: fix implicit use of module_get/module_put from module.h
  nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
  include: replace linux/module.h with "struct module" wherever possible
  include: convert various register fcns to macros to avoid include chaining
  crypto.h: remove unused crypto_tfm_alg_modname() inline
  uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
  pm_runtime.h: explicitly requires notifier.h
  linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
  miscdevice.h: fix up implicit use of lists and types
  stop_machine.h: fix implicit use of smp.h for smp_processor_id
  of: fix implicit use of errno.h in include/linux/of.h
  of_platform.h: delete needless include <linux/module.h>
  acpi: remove module.h include from platform/aclinux.h
  miscdevice.h: delete unnecessary inclusion of module.h
  device_cgroup.h: delete needless include <linux/module.h>
  net: sch_generic remove redundant use of <linux/module.h>
  net: inet_timewait_sock doesnt need <linux/module.h>
  ...

Fix up trivial conflicts (other header files, and  removal of the ab3550 mfd driver) in
 - drivers/media/dvb/frontends/dibx000_common.c
 - drivers/media/video/{mt9m111.c,ov6650.c}
 - drivers/mfd/ab3550-core.c
 - include/linux/dmaengine.h
2011-11-06 19:44:47 -08:00
Magnus Damm 7d377b170a sh: intc: Allow triggering on both edges for ARM SoCs
Enable IRQ_TYPE_EDGE_BOTH on all R/SH-Mobile ARM SoCs.
This hardware feature is supported by sh7367, sh7377,
sh7372 and sh73a0.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-05 00:57:48 +09:00
Paul Gortmaker 07c9273945 drivers/sh: Add export.h for EXPORT_SYMBOL to intc/virq.c
This is exporting symbols and will fail to build once we remove
the implicit presence of module.h

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:58 -04:00
Paul Gortmaker f7be345515 sh: Add export.h to arch/sh specific files as required.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:05 -04:00
Paul Gortmaker db4e83957f sh: Add module.h to arch/sh specific files as required.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:04 -04:00
Paul Gortmaker 0c43871b40 sh: fix implicit use of stat.h in arch/sh specific files
To fix:

arch/sh/drivers/dma/dma-sysfs.c:45:8: error: 'S_IRUGO' undeclared here (not in a function)
arch/sh/drivers/dma/dma-sysfs.c:75:8: error: 'S_IWUSR' undeclared here (not in a function)
make[4]: *** [arch/sh/drivers/dma/dma-sysfs.o] Error 1

drivers/sh/intc/core.c:449: error: 'S_IRUGO' undeclared here (not in a function)
make[5]: *** [drivers/sh/intc/core.o] Error 1

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:04 -04:00
Nobuhiro Iwamatsu a102a08887 sh: userimask.c needs linux/stat.h
This fix the problem that S_IRUSR and S_IWUSR are not solved in userimask.c.

-----
CC      drivers/usb/host/r8a66597-hcd.o
drivers/sh/intc/userimask.c:57: error: ‘S_IRUSR’ undeclared here (not in a function)
drivers/sh/intc/userimask.c:57: error: ‘S_IWUSR’ undeclared here (not in a function)
CC      drivers/watchdog/shwdt.o
-----

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-10-28 15:03:54 +09:00
Magnus Damm 52e3124f24 sh: intc: Add IRQ trigger bit field check
R-Mobile SoCs such as sh73a0 include PINT blocks in INTC
that come with 2-bit IRQ trigger support. Add code to make
sure the bit width is checked so 4-bit only modes like for
instance EDGE_BOTH will fail for PINT.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-10-28 14:39:24 +09:00
Magnus Damm 9a14a92c93 sh: intc: enable both edges GPIO interrupts on sh7372
IRQ-capable GPIOs on sh7372 can be configured to produce interrupts on
both edges.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-07-21 16:53:24 +09:00
Paul Mundt 442f56d917 sh: intc: Set virtual IRQs as nothread.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-04-27 14:35:44 +09:00
Thomas Gleixner 286b9bfe8e sh: Fix irq cleanup fallout
I missed that coccinelle does not fix up header files by default.

Reported-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: <lethal@linux-sh.org>
2011-03-30 00:15:49 +02:00
Thomas Gleixner fcb8918fd2 sh: Convert to new function names
Scripted with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29 14:48:13 +02:00
Thomas Gleixner a821b2793e sh: Use the proper accessor functions
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29 14:48:13 +02:00
Rafael J. Wysocki a696b89c58 sh: Use struct syscore_ops instead of sysdevs
Convert the SuperH clocks framework and shared interrupt handling
code to using struct syscore_ops instead of a sysdev classes and
sysdevs for power managment.

This reduces the code size significantly and simplifies it.  The
optimizations causing things not to be restored after creating a
hibernation image are removed, but they might lead to undesirable
effects during resume from hibernation (e.g. the clocks would be left
as the boot kernel set them, which might be not the same way as the
hibernated kernel had seen them before the hibernation).

This also is necessary for removing sysdevs from the kernel entirely
in the future.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-03-23 18:57:37 +09:00
Magnus Damm 8a5a778665 sh: update INTC to clear IRQ sense valid flag
Clear the valid flag is in the INTC code.
Without this fix bit 7 of the sense register
is mistakenly set.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-19 19:02:35 +09:00
Paul Mundt 30f2ba3801 sh: intc: Initialize radix tree gfp mask explicitly.
Presently the root node is initialized by way of kzalloc on the parent
data structure, which by chance happens to do the bulk of what an
explicit initialization does with GFP_NOWAIT semantics. This however is
more by luck than by design, and as we ideally want to permit radix node
allocations access to the emergency pools anyways, add in the proper
initializer with the desired mask.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-24 19:38:37 +09:00
Paul Mundt 6318af900c sh: intc: Fix up build failure introduced by radix tree changes.
The radix tree retry logic got a bit of an overhaul and subsequently
broke the virtual IRQ subgroup build. Simply switch over to
radix_tree_deref_retry() as per the filemap changes, which the virq
lookup logic was modelled after in the first place.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-15 14:30:30 +09:00
Paul Mundt 20f95e0b22 sh: intc: Update for single IRQ reservation helper.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-01 16:10:48 -04:00
Paul Mundt 63111a3a70 sh: intc: switch irq_desc iteration to new active IRQ iterator.
There's no need to iterative over every single irq_desc when we can
already work out which IRQs have a backing descriptor via the shiny new
for_each_active_irq(). Switch to that instead.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-10-28 11:36:31 +09:00
Paul Mundt 26599a94dc sh: intc: irq_data conversion.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-10-27 15:42:10 +09:00