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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2011-06-27 07:26:23 (GMT) |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2012-02-03 23:13:25 (GMT) |
| commit | b43ab901d671e3e3cad425ea5e9a3c74e266dcdd (patch) | |
| tree | 9527497057e939c478ff8ac5760f71cafff3b996 /drivers/gpio/Kconfig | |
| parent | 608589b15f02e59e8c40df7ef861064f1b6fa504 (diff) | |
| download | linux-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/Kconfig | 8 |
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 |