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authorBenoit Cousson <b-cousson@ti.com>2012-02-29 22:51:32 +0100
committerSamuel Ortiz <sameo@linux.intel.com>2012-03-22 13:05:55 +0100
commitb8589e2a8065b8e7773742b60ae96b63b757bb69 (patch)
treead20ba6cc9205cbaf0e99c444cfca22e1e44db17 /Documentation/devicetree
parent2d9dd99b4470a2ef05509435465e055f50456330 (diff)
gpio/twl: Add DT support to gpio-twl4030 driver
Add the DT support for the I2C GPIO expander inside the twl4030. Note: The pdata parameters still have to be properly adapted using dedicated bindings. Signed-off-by: Benoit Cousson <b-cousson@ti.com> Acked-by: Felipe Balbi <balbi@ti.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/gpio/gpio-twl4030.txt23
1 files changed, 23 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-twl4030.txt b/Documentation/devicetree/bindings/gpio/gpio-twl4030.txt
new file mode 100644
index 00000000000..16695d9cf1e
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-twl4030.txt
@@ -0,0 +1,23 @@
+twl4030 GPIO controller bindings
+
+Required properties:
+- compatible:
+ - "ti,twl4030-gpio" for twl4030 GPIO controller
+- #gpio-cells : Should be two.
+ - first cell is the pin number
+ - second cell is used to specify optional parameters (unused)
+- gpio-controller : Marks the device node as a GPIO controller.
+- #interrupt-cells : Should be 2.
+- interrupt-controller: Mark the device node as an interrupt controller
+ The first cell is the GPIO number.
+ The second cell is not used.
+
+Example:
+
+twl_gpio: gpio {
+ compatible = "ti,twl4030-gpio";
+ #gpio-cells = <2>;
+ gpio-controller;
+ #interrupt-cells = <2>;
+ interrupt-controller;
+};