diff options
Diffstat (limited to 'Documentation/devicetree/bindings/gpio/gpio-omap.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio-omap.txt | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-omap.txt b/Documentation/devicetree/bindings/gpio/gpio-omap.txt index bff51a2fee1..8d950522e7f 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-omap.txt +++ b/Documentation/devicetree/bindings/gpio/gpio-omap.txt @@ -5,12 +5,12 @@ Required properties: - "ti,omap2-gpio" for OMAP2 controllers - "ti,omap3-gpio" for OMAP3 controllers - "ti,omap4-gpio" for OMAP4 controllers +- gpio-controller : Marks the device node as a 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-controller: Mark the device node as an interrupt 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 used to specify flags: bits[3:0] trigger type and level flags: @@ -20,8 +20,11 @@ Required properties: 8 = active low level-sensitive. OMAP specific properties: -- ti,hwmods: Name of the hwmod associated to the GPIO: - "gpio<X>", <X> being the 1-based instance number from the HW spec +- ti,hwmods: Name of the hwmod associated to the GPIO: + "gpio<X>", <X> being the 1-based instance number + from the HW spec. +- ti,gpio-always-on: Indicates if a GPIO bank is always powered and + so will never lose its logic state. Example: @@ -29,8 +32,8 @@ Example: gpio4: gpio4 { compatible = "ti,omap4-gpio"; ti,hwmods = "gpio4"; - #gpio-cells = <2>; gpio-controller; - #interrupt-cells = <2>; + #gpio-cells = <2>; interrupt-controller; + #interrupt-cells = <2>; }; |