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authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2011-06-27 07:26:23 (GMT)
committerGrant Likely <grant.likely@secretlab.ca>2012-02-03 23:13:25 (GMT)
commitb43ab901d671e3e3cad425ea5e9a3c74e266dcdd (patch)
tree9527497057e939c478ff8ac5760f71cafff3b996 /drivers/gpio/Kconfig
parent608589b15f02e59e8c40df7ef861064f1b6fa504 (diff)
downloadlinux-b43ab901d671e3e3cad425ea5e9a3c74e266dcdd.tar.xz
gpio: Add a driver for Sodaville GPIO controller
Sodaville has GPIO controller behind the PCI bus. To my suprissed it is not the same as on PXA. The interrupt & gpio chip can be referenced from the device tree like from any other driver. Unfortunately the driver which uses the gpio interrupt has to use irq_of_parse_and_map() instead of platform_get_irq(). The problem is that the platform device (which is created from the device tree) is most likely created before the interrupt chip is registered and therefore irq_of_parse_and_map() fails. In theory the driver works as module. In reality most of the irq functions are not exported to modules and it is possible that _this_ module is unloaded while the provided irqs are still in use. Signed-off-by: Hans J. Koch <hjk@linutronix.de> [torbenh@linutronix.de: make it work after the irq namespace cleanup, add some device tree entries.] Signed-off-by: Torben Hohn <torbenh@linutronix.de> [bigeasy@linutronix.de: convert to generic irq & gpio chip] Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> [grant.likely@secretlab.ca: depend on x86 to avoid irq_domain breakage] Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/gpio/Kconfig')
-rw-r--r--drivers/gpio/Kconfig8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index eaa7d38..dbb1909 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -417,6 +417,14 @@ config GPIO_ML_IOH
Hub) which is for IVI(In-Vehicle Infotainment) use.
This driver can access the IOH's GPIO device.
+config GPIO_SODAVILLE
+ bool "Intel Sodaville GPIO support"
+ depends on X86 && PCI && OF
+ select GPIO_GENERIC
+ select GENERIC_IRQ_CHIP
+ help
+ Say Y here to support Intel Sodaville GPIO.
+
config GPIO_TIMBERDALE
bool "Support for timberdale GPIO IP"
depends on MFD_TIMBERDALE && HAS_IOMEM