linux/Documentation/devicetree/bindings/gpio/gpio-msm.txt
Rohit Vaswani 43f68444bc gpio: msm: Add device tree and irqdomain support for gpio-msm-v2
This cleans up the gpio-msm-v2 driver of all the global define usage.
The number of gpios are now defined in the device tree. This enables
adding irqdomain support as well.

Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2013-06-12 14:50:12 -07:00

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MSM GPIO controller bindings
Required properties:
- compatible:
- "qcom,msm-gpio" for MSM controllers
- #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
- interrupts : Specify the TLMM summary interrupt number
- ngpio : Specify the number of MSM GPIOs
Example:
msmgpio: gpio@fd510000 {
compatible = "qcom,msm-gpio";
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
reg = <0xfd510000 0x4000>;
interrupts = <0 208 0>;
ngpio = <150>;
};