[PATCH 4/7] drivers/gpio: gpio-nomadik: Provide documentation for Device Tree bindings
From: Lee Jones <hidden>
Date: 2012-04-13 14:59:20
Subsystem:
gpio subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Linus Walleij, Bartosz Golaszewski, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Grant's comments also taken heed of here: From: Lee Jones <redacted> Date: Wed, 4 Apr 2012 17:06:41 +0100 Subject: [PATCH 4/7] drivers/gpio: gpio-nomadik: Provide documentation for Device Tree bindings Add required documentation for specific gpio-nomadik DT bindings. Signed-off-by: Lee Jones <redacted> --- .../devicetree/bindings/gpio/gpio-nmk.txt | 29 ++++++++++++++++++++ 1 files changed, 29 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-nmk.txt
diff --git a/Documentation/devicetree/bindings/gpio/gpio-nmk.txt b/Documentation/devicetree/bindings/gpio/gpio-nmk.txt
new file mode 100644
index 0000000..3856789
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-nmk.txt@@ -0,0 +1,29 @@ +Nomadik GPIO controller + +Required properties: +- compatible : Should be "st,nomadik-gpio". +- reg : Physical base address and length of the controller's registers. +- interrupts : The interrupt outputs from the controller. +- #gpio-cells : Should be two: + The first cell is the pin number. + The second cell is used to specify optional parameters: + - bits[3:0] trigger type and level flags: + 1 = low-to-high edge triggered. + 2 = high-to-low edge triggered. + 4 = active high level-sensitive. + 8 = active low level-sensitive. +- gpio-controller : Marks the device node as a GPIO controller. +- gpio-bank : Specifies which bank a controller owns. +- st,supports-sleepmode : Specifies whether controller can sleep or not + +Example: + + gpio1: gpio at 8012e080 { + compatible = "st,nomadik-gpio"; + reg = <0x8012e080 0x80>; + interrupts = <0 120 0x4>; + #gpio-cells = <2>; + gpio-controller; + supports-sleepmode; + gpio-bank = <1>; + };
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1.7.9.1