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| author | Kamlakant Patel <kamlakant.patel@broadcom.com> | 2015-04-28 17:40:44 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2015-05-06 17:30:59 +0300 |
| commit | a605c668cc0c0ed267c014267f04bef29460367d (patch) | |
| tree | a5d500901d2d1ea84e46d532283f8ae0a329c56f | |
| parent | cac089f9026e9ddb3481daf08f0fc4e5949fa1af (diff) | |
| download | linux-a605c668cc0c0ed267c014267f04bef29460367d.tar.xz | |
gpio: Add Netlogic XLP GPIO devicetree bindings documentation
Provide documentation for Netlogic XLP SoCs GPIO controller DTS bindings.
Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio-xlp.txt | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-xlp.txt b/Documentation/devicetree/bindings/gpio/gpio-xlp.txt new file mode 100644 index 000000000000..262ee4ddf2cb --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-xlp.txt @@ -0,0 +1,47 @@ +Netlogic XLP Family GPIO +======================== + +This GPIO driver is used for following Netlogic XLP SoCs: + XLP832, XLP316, XLP208, XLP980, XLP532 + +Required properties: +------------------- + +- compatible: Should be one of the following: + - "netlogic,xlp832-gpio": For Netlogic XLP832 + - "netlogic,xlp316-gpio": For Netlogic XLP316 + - "netlogic,xlp208-gpio": For Netlogic XLP208 + - "netlogic,xlp980-gpio": For Netlogic XLP980 + - "netlogic,xlp532-gpio": For Netlogic XLP532 +- reg: Physical base address and length of the controller's registers. +- #gpio-cells: Should be two. The first cell is the pin number and the second + cell is used to specify optional parameters (currently unused). +- gpio-controller: Marks the device node as a GPIO controller. +- nr-gpios: Number of GPIO pins supported by the controller. +- interrupt-cells: Should be two. The first cell is the GPIO Number. The + second cell is used to specify flags. The following subset of flags is + supported: + - trigger type: + 1 = low to high edge triggered. + 2 = high to low edge triggered. + 4 = active high level-sensitive. + 8 = active low level-sensitive. +- interrupts: Interrupt number for this device. +- interrupt-parent: phandle of the parent interrupt controller. +- interrupt-controller: Identifies the node as an interrupt controller. + +Example: + + gpio: xlp_gpio@34000 { + compatible = "netlogic,xlp316-gpio"; + reg = <0 0x34100 0x1000 + 0 0x35100 0x1000>; + #gpio-cells = <2>; + gpio-controller; + nr-gpios = <57>; + + #interrupt-cells = <2>; + interrupt-parent = <&pic>; + interrupts = <39>; + interrupt-controller; + }; |