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Bastian Hecht 427cc72027 irqchip: intc-irqpin: Add support for shared interrupt lines 
On some hardware we don't have a 1-1 mapping from the external
interrupts coming from INTC to the GIC SPI pins. We can however
share lines to demux incoming IRQs on these SoCs.

This patch enables the intc_irqpin driver to detect requests for shared
interrupt lines and demuxes them properly by querying the INTC INTREQx0A
registers.

If you need multiple shared intc_irqpin device instances, be sure to mask
out all interrupts on the INTC that share the one line before you start
to register them. Else you run into IRQ floods that would be caused by
interrupts for which no handler has been set up yet when the first
intc_irqpin device is registered.

Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-03-28 16:39:46 +09:00
..
accessibility
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acpi
ACPI / glue: Drop .find_bridge() callback from struct acpi_bus_type
2013-03-04 14:23:40 +01:00
amba
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2013-03-03 11:54:39 -08:00
ata
ACPI / glue: Drop .find_bridge() callback from struct acpi_bus_type
2013-03-04 14:23:40 +01:00
atm
hlist: drop the node parameter from iterators
2013-02-27 19:10:24 -08:00
auxdisplay
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base
ACPI and power management fixes for 3.9-rc2
2013-03-07 14:54:28 -08:00
bcma
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2013-03-01 13:52:03 -05:00
block
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
2013-02-28 17:43:09 -08:00
bluetooth
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-02-21 17:40:58 -08:00
bus
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cdrom
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char
Fix a circular locking dependency in random's collection of cputime
2013-03-08 14:42:16 -08:00
clk
hlist: drop the node parameter from iterators
2013-02-27 19:10:24 -08:00
clocksource
ImgTec Meta architecture changes for v3.9-rc1
2013-03-03 12:06:09 -08:00
connector
proc connector: reject unprivileged listener bumps
2013-02-27 13:08:35 -05:00
cpufreq
cpufreq / intel_pstate: Do not load on VM that does not report max P state.
2013-03-06 23:40:11 +01:00
cpuidle
arm-soc: soc-specific updates
2013-02-21 15:27:22 -08:00
crypto
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2013-02-25 15:56:15 -08:00
dca
dca: convert to idr_alloc()
2013-02-27 19:10:15 -08:00
devfreq
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dio
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dma
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
2013-03-03 10:20:22 -08:00
edac
Merge branch 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac
2013-02-28 20:42:33 -08:00
eisa
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extcon
Char/Misc driver patches for 3.9-rc1
2013-02-21 13:57:13 -08:00
firewire
firewire: convert to idr_alloc()
2013-02-27 19:10:15 -08:00
firmware
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2013-03-09 16:51:13 -08:00
gpio
gpio/gpio-ich: fix ichx_gpio_check_available() return what callers expect
2013-03-02 13:20:21 +00:00
gpu
drm/tegra: drop "select DRM_HDMI"
2013-03-08 08:36:01 +10:00
hid
Merge branch 'for-3.9/upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
2013-03-08 14:42:52 -08:00
hsi
hsi: fix kernel-doc warnings
2013-03-01 13:39:00 -08:00
hv
Drivers: hv: vmbus: Use the new infrastructure for delivering VMBUS interrupts
2013-02-27 10:15:53 -08:00
hwmon
hwmon: (sht15) Check return value of regulator_enable()
2013-03-03 21:45:48 -08:00
hwspinlock
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i2c
idr: remove MAX_IDR_MASK and move left MAX_IDR_* into idr.c
2013-02-27 19:10:20 -08:00
ide
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-02-26 20:16:07 -08:00
idle
Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-02-22 19:25:09 -08:00
iio
Staging tree update for 3.9-rc1
2013-02-21 12:11:44 -08:00
infiniband
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
input
Atmel MXT touchscreen: increase reset timeouts
2013-03-09 10:31:01 -08:00
iommu
iommu, x86: Add DMA remap fault reason
2013-03-06 09:41:51 +01:00
ipack
Char/Misc driver patches for 3.9-rc1
2013-02-21 13:57:13 -08:00
irqchip
irqchip: intc-irqpin: Add support for shared interrupt lines
2013-03-28 16:39:46 +09:00
isdn
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2013-03-05 18:42:29 -08:00
leds
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
2013-02-26 09:29:02 -08:00
lguest
All trivial, thanks to the stuff which didn't quite make it time.
2013-02-26 14:49:12 -08:00
macintosh
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2013-02-23 17:09:55 -08:00
mailbox
mailbox, pl320-ipc: remove __init from probe function
2013-03-04 14:23:11 +01:00
md
md updates for 3.9
2013-03-05 17:22:08 -08:00
media
arm-soc: late OMAP changes
2013-02-28 20:00:40 -08:00
memory
…
memstick
memstick: move the dereference below the NULL test
2013-02-27 19:10:23 -08:00
message
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mfd
mfd: convert to idr_alloc()
2013-02-27 19:10:17 -08:00
misc
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
mmc
Merge branches 'devel-stable', 'fixes' and 'mmci' into for-linus
2013-03-03 00:32:50 +00:00
mtd
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
net
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2013-03-05 18:42:29 -08:00
nfc
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2013-02-18 13:47:13 -05:00
ntb
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nubus
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of
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-02-21 17:40:58 -08:00
oprofile
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
parisc
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-02-26 20:16:07 -08:00
parport
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2013-02-21 17:54:03 -08:00
pci
ACPI / glue: Add .match() callback to struct acpi_bus_type
2013-03-04 14:23:40 +01:00
pcmcia
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-02-21 17:40:58 -08:00
pinctrl
ARM: shmobile: INTC External IRQ pin driver on sh73a0
2013-03-18 21:26:05 +09:00
platform
Platform: x86: chromeos_laptop : Add basic platform data for atmel devices
2013-03-08 16:03:29 -08:00
pnp
ACPI / glue: Add .match() callback to struct acpi_bus_type
2013-03-04 14:23:40 +01:00
power
power: convert to idr_alloc()
2013-02-27 19:10:18 -08:00
pps
drivers/pps/clients/pps-gpio.c: use devm_kzalloc
2013-02-27 19:10:23 -08:00
ps3
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ptp
…
pwm
pwm: Changes for v3.9-rc1
2013-02-26 09:34:29 -08:00
rapidio
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regulator
Merge remote-tracking branch 'regulator/fix/twl' into tmp
2013-03-05 10:12:43 +08:00
remoteproc
remoteproc: convert to idr_alloc()
2013-02-27 19:10:18 -08:00
rpmsg
rpmsg: convert to idr_alloc()
2013-02-27 19:10:18 -08:00
rtc
rtc: stmp3xxx: add wdt-accessor function
2013-03-01 12:40:36 +01:00
s390
qdio: remove unused parameters
2013-02-28 09:37:12 +01:00
sbus
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-02-26 20:16:07 -08:00
scsi
ACPI / glue: Add .match() callback to struct acpi_bus_type
2013-03-04 14:23:40 +01:00
sfi
…
sh
…
sn
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spi
arm-soc: soc-specific updates
2013-02-21 15:27:22 -08:00
ssb
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into mips-for-linux-next
2013-02-22 10:07:30 +01:00
staging
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
target
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2013-03-02 11:43:27 -08:00
tc
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thermal
Fix mis-merge of intel_powerclamp.c resulting in compile error
2013-02-28 20:23:09 -08:00
tty
drivers/tty/hvc: Use strlcpy instead of strncpy
2013-03-05 16:56:27 +11:00
uio
uio: convert to idr_alloc()
2013-02-27 19:10:19 -08:00
usb
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2013-03-09 16:51:13 -08:00
uwb
driver-core: constify data for class_find_device()
2013-02-06 12:18:56 -08:00
vfio
vfio: convert to idr_alloc()
2013-02-27 19:10:19 -08:00
vhost
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2013-02-26 11:42:23 -08:00
video
backlight: add new lp8788 backlight driver
2013-02-27 19:10:09 -08:00
virt
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virtio
All trivial, thanks to the stuff which didn't quite make it time.
2013-02-26 14:49:12 -08:00
vlynq
…
vme
vme: add missing put_device() after device_register() fails
2013-02-14 09:24:14 -08:00
w1
arm-soc: i.MX DT changes
2013-02-28 19:59:34 -08:00
watchdog
watchdog: sp805_wdt depends on ARM
2013-03-01 12:56:26 +01:00
xen
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
zorro
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
Kconfig
Char/Misc driver patches for 3.9-rc1
2013-02-21 13:57:13 -08:00
Makefile
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2013-02-23 17:09:55 -08:00