mfd: intel_quark_i2c_gpio: Add Intel Quark X1000 I2C-GPIO MFD Driver

In Quark X1000, there's a single PCI device that provides both
an I2C controller and a GPIO controller. This MFD driver will
split the 2 devices for their respective drivers.

This patch is based on Josef Ahmad's initial work for Quark enabling.

Acked-by: Michael Turquette <mturquette@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Weike Chen <alvin.chen@intel.com>
Signed-off-by: Raymond Tan <raymond.tan@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index f49f404c2004..b277f37ae3be 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -283,6 +283,18 @@ config HTC_I2CPLD
           This device provides input and output GPIOs through an I2C
           interface to one or more sub-chips.
 
+config MFD_INTEL_QUARK_I2C_GPIO
+        tristate "Intel Quark MFD I2C GPIO"
+        depends on PCI
+        depends on X86
+        depends on COMMON_CLK
+        select MFD_CORE
+        help
+          This MFD provides support for I2C and GPIO that exist only
+          in a single PCI device. It splits the 2 IO devices to
+          their respective IO driver.
+          The GPIO exports a total amount of 8 interrupt-capable GPIOs.
+
 config LPC_ICH
         tristate "Intel ICH LPC"
         depends on PCI