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authorSascha Hauer <s.hauer@pengutronix.de>2021-08-09 21:17:51 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2021-08-09 21:17:51 +0200
commit6187b17da4b277417f34fe0b0b90bbaddcbc599e (patch)
tree51cbbaa0fa325c592d084eb7d197a5df0e7a43bb /dts/Bindings/gpio/gpio-omap.txt
parentc53e1fc545e686e1f48c8efb9057fc72e158f183 (diff)
downloadbarebox-6187b17da4b277417f34fe0b0b90bbaddcbc599e.tar.gz
barebox-6187b17da4b277417f34fe0b0b90bbaddcbc599e.tar.xz
dts: update to v5.14-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/gpio/gpio-omap.txt')
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diff --git a/dts/Bindings/gpio/gpio-omap.txt b/dts/Bindings/gpio/gpio-omap.txt
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-OMAP GPIO controller bindings
-
-Required properties:
-- compatible:
- - "ti,omap2-gpio" for OMAP2 controllers
- - "ti,omap3-gpio" for OMAP3 controllers
- - "ti,omap4-gpio" for OMAP4 controllers
-- reg : Physical base address of the controller and length of memory mapped
- region.
-- 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)
-- interrupt-controller: Mark the device node as an interrupt controller.
-- #interrupt-cells : Should be 2.
- The first cell is the GPIO number.
- The second cell is used to specify flags:
- 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.
-- interrupts : The interrupt the controller is rising as output when an
- interrupt occures
-
-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,gpio-always-on: Indicates if a GPIO bank is always powered and
- so will never lose its logic state.
-
-
-Example:
-
-gpio0: gpio@44e07000 {
- compatible = "ti,omap4-gpio";
- reg = <0x44e07000 0x1000>;
- ti,hwmods = "gpio1";
- gpio-controller;
- #gpio-cells = <2>;
- interrupt-controller;
- #interrupt-cells = <2>;
- interrupts = <96>;
-};