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Javier Martinez Canillas 517ff99417 gpio/omap: auto-setup a GPIO when used as an IRQ 
commit fac7fa162a upstream.

The OMAP GPIO controller HW requires a pin to be configured in GPIO
input mode in order to operate as an interrupt input. Since drivers
should not be aware of whether an interrupt pin is also a GPIO or not,
the HW should be fully configured/enabled as an IRQ if a driver solely
uses IRQ APIs such as request_irq(), and never calls any GPIO-related
APIs. As such, add the missing HW setup to the OMAP GPIO controller's
irq_chip driver.

Since this bypasses the GPIO subsystem we have to ensure that another
driver won't be able to request the same GPIO pin that is used as an
IRQ and set its direction as output. Requesting the GPIO and setting
its direction as input is allowed though.

This fixes smsc911x ethernet support for tobi and igep OMAP3 boards
and OMAP4 SDP SPI based ethernet that use a GPIO as an interrupt line.

Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: George Cherian <george.cherian@ti.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Tested-by: Lars Poeschel <poeschel@lemonage.de>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-13 16:08:31 -07:00
..
accessibility
acpi ACPI / LPSS: don't crash if a device has no MMIO resources 2013-09-26 17:18:05 -07:00
amba
ata libata: apply behavioral quirks to sil3826 PMP 2013-08-29 09:47:38 -07:00
atm atm: he: use mdelay instead of large udelay constants 2013-04-29 13:26:48 -04:00
auxdisplay
base driver core : Fix use after free of dev->parent in device_shutdown 2013-10-05 07:13:11 -07:00
bcma bcma: add more core IDs 2013-05-17 14:31:05 -04:00
block cciss: fix info leak in cciss_ioctl32_passthru() 2013-10-13 16:08:28 -07:00
bluetooth Bluetooth: fix wrong use of PTR_ERR() in btusb 2013-08-11 18:35:23 -07:00
bus
cdrom drivers/cdrom/cdrom.c: use kzalloc() for failing hardware 2013-07-13 11:42:26 -07:00
char virtio: console: return -ENODEV on all read operations after unplug 2013-08-14 22:59:09 -07:00
clk clk: wm831x: Initialise wm831x pointer on init 2013-09-26 17:18:30 -07:00
clocksource clocksource: dw_apb: Fix error check 2013-07-25 14:07:29 -07:00
connector
cpufreq cpufreq: rename ignore_nice as ignore_nice_load 2013-08-14 22:59:06 -07:00
cpuidle cpuidle: coupled: fix race condition between pokes and safe state 2013-09-26 17:18:02 -07:00
crypto crypto: caam - Fixed the memory out of bound overwrite issue 2013-08-04 16:50:57 +08:00
dca
devfreq
dio
dma dma: pl330: Fix cyclic transfers 2013-08-11 18:35:21 -07:00
edac amd64_edac: Fix single-channel setups 2013-09-26 17:18:28 -07:00
eisa PCI changes for the v3.10 merge window: 2013-04-29 09:30:25 -07:00
extcon Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
firewire firewire: fix libdc1394/FlyCap2 iso event regression 2013-08-04 16:50:38 +08:00
firmware efivar: fix oops in efivar_update_sysfs_entries() caused by memory reuse 2013-05-13 20:20:02 +01:00
gpio gpio/omap: auto-setup a GPIO when used as an IRQ 2013-10-13 16:08:31 -07:00
gpu drm/i915: fix gen4 digital port hotplug definitions 2013-10-05 07:13:12 -07:00
hid HID: fix data access in implement() 2013-10-13 16:08:28 -07:00
hsi
hv Drivers: hv: balloon: Do not post pressure status if interrupted 2013-08-04 16:50:58 +08:00
hwmon hwmon: (applesmc) Check key count before proceeding 2013-10-05 07:13:12 -07:00
hwspinlock A single patch from Vincent extending OMAP's hwspinlock support to OMAP5. 2013-05-07 14:01:27 -07:00
i2c i2c: i2c-mxs: Use DMA mode even for small transfers 2013-08-14 22:59:06 -07:00
ide block_device_operations->release() should return void 2013-05-07 02:16:21 -04:00
idle Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2013-05-11 15:23:17 -07:00
iio iio: inkern: fix iio_convert_raw_to_processed_unlocked 2013-07-25 14:07:23 -07:00
infiniband iscsi-target: Fix iscsit_sequence_cmd reject handling for iser 2013-08-04 16:51:17 +08:00
input HID: Correct the USB IDs for the new Macbook Air 6 2013-09-26 17:18:15 -07:00
iommu intel-iommu: Fix leaks in pagetable freeing 2013-09-26 17:18:27 -07:00
ipack
irqchip ARM: SoC fixes for 3.10-rc 2013-06-22 09:44:45 -10:00
isdn isdn/kcapi: fix a small underflow 2013-05-20 13:38:14 -07:00
leds leds: wm831x-status: Request a REG resource 2013-09-26 17:18:27 -07:00
lguest lguest: clear cached last cpu when guest_set_pgd() called. 2013-05-08 10:49:18 +09:30
macintosh powerpc/windfarm: Fix noisy slots-fan on Xserve (rm31) 2013-08-11 18:35:20 -07:00
mailbox
md dm-raid: silence compiler warning on rebuilds_per_group. 2013-10-05 07:13:11 -07:00
media Properly handle tristate dependencies on USB/PCI menus 2013-10-01 09:17:48 -07:00
memory drivers/memory: don't check resource with devm_ioremap_resource 2013-05-18 11:55:52 +02:00
memstick block_device_operations->release() should return void 2013-05-07 02:16:21 -04:00
message Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block 2013-05-08 10:13:35 -07:00
mfd mfd: tps6586x: correct device name of the regulator cell 2013-06-24 12:37:47 +01:00
misc mei: cancel stall timers in mei_reset 2013-10-05 07:13:10 -07:00
mmc mmc: tmio_mmc_dma: fix PIO fallback on SDHI 2013-09-26 17:18:29 -07:00
mtd mtd: nand: fix NAND_BUSWIDTH_AUTO for x16 devices 2013-09-26 17:18:29 -07:00
net ll_temac: Reset dma descriptors indexes on ndo_open 2013-10-13 16:08:30 -07:00
nfc NFC: mei: Do not disable MEI devices from their remove routine 2013-05-21 10:48:41 +02:00
ntb NTB: Multiple NTB client fix 2013-05-15 10:58:22 -07:00
nubus nubus: Kill nubus_proc_detach_device() 2013-05-04 14:47:26 -04:00
of of: Fix missing memory initialization on FDT unflattening 2013-09-26 17:18:29 -07:00
oprofile
parisc parisc: Fix interrupt routing for C8000 serial ports 2013-08-11 18:35:21 -07:00
parport parisc: parport0: fix this legacy no-device port driver! 2013-06-01 14:46:42 +02:00
pci PCI / ACPI / PM: Clear pme_poll for devices in D3cold on wakeup 2013-10-01 09:17:45 -07:00
pcmcia pcmcia: at91_cf: fix gpio_get_value in at91_cf_get_status 2013-07-21 18:21:25 -07:00
pinctrl pinctrl: at91: fix get_pullup/down function return 2013-09-26 17:18:14 -07:00
platform drivers/platform/olpc/olpc-ec.c: initialise earlier 2013-08-29 09:47:38 -07:00
pnp Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-05-02 10:16:16 -07:00
power charger-manager: Ensure event is not used as format string 2013-07-13 11:42:26 -07:00
pps Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
ps3
ptp ptp_pch: fix error handling in pch_probe() 2013-05-25 21:24:15 -07:00
pwm drivers/pwm: don't check resource with devm_ioremap_resource 2013-05-18 11:55:58 +02:00
rapidio RAPIDIO: IDT_GEN2: Fix build error. 2013-07-28 16:30:07 -07:00
regulator mfd: tps6586x: correct device name of the regulator cell 2013-06-24 12:37:47 +01:00
remoteproc This pull request contains: 2013-05-07 14:04:56 -07:00
reset
rpmsg A small pull request consisting of: 2013-05-07 14:02:00 -07:00
rtc drivers/rtc/rtc-max77686.c: Fix wrong register 2013-09-14 06:54:57 -07:00
s390 SCSI: zfcp: fix schedule-inside-lock in scsi_device list loops 2013-08-29 09:47:39 -07:00
sbus
scsi SCSI: sd: Fix potential out-of-bounds access 2013-09-26 17:18:01 -07:00
sfi
sh
sn
spi spi: spi-davinci: Fix direction in dma_map_single() 2013-08-11 18:35:25 -07:00
ssb - Lots of cleanups from Artem, including deletion of some obsolete drivers 2013-05-09 10:15:46 -07:00
ssbi
staging staging: vt6656: [BUG] iwctl_siwencodeext return if device not open 2013-10-05 07:13:10 -07:00
target target: Fix >= v3.9+ regression in PR APTPL + ALUA metadata write-out 2013-09-26 17:18:27 -07:00
tc
thermal drivers/thermal: don't check resource with devm_ioremap_resource 2013-05-18 11:57:30 +02:00
tty serial: pch_uart: fix tty-kref leak in dma-rx path 2013-10-05 07:13:10 -07:00
uio uio: UIO_DMEM_GENIRQ should depend on HAS_DMA 2013-05-21 10:13:23 -07:00
usb usb/core/devio.c: Don't reject control message to endpoint with wrong direction bit 2013-10-05 07:13:11 -07:00
uwb uwb: rename random32() to prandom_u32() 2013-04-29 18:28:43 -07:00
vfio vfio: fix crash on rmmod 2013-06-05 08:54:16 -06:00
vhost vhost_net: poll vhost queue after marking DMA is done 2013-09-14 06:54:56 -07:00
video atmel_lcdfb: blank the backlight on remove 2013-06-01 03:18:55 +08:00
virt
virtio virtio: support unlocked queue poll 2013-07-28 16:29:55 -07:00
vlynq
vme
w1 drivers/w1/masters: don't check resource with devm_ioremap_resource 2013-05-18 11:58:03 +02:00
watchdog drivers/watchdog: don't check resource with devm_ioremap_resource 2013-05-18 11:58:04 +02:00
xen xen-gnt: prevent adding duplicate gnt callbacks 2013-09-26 17:18:02 -07:00
zorro proc: Supply PDE attribute setting accessor functions 2013-05-01 17:29:18 -04:00
Kconfig ARM: arm-soc driver changes for 3.10 2013-05-04 12:31:18 -07:00
Makefile ARM: arm-soc driver changes for 3.10 2013-05-04 12:31:18 -07:00