Commit 10ca84f2 authored by Sergio Paracuellos's avatar Sergio Paracuellos Committed by Greg Kroah-Hartman
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staging: mt7621-gpio: dt-bindings: add interrupt nodes to bindings doc 



Interrupt related stuff for gpio controller in mt7621 was missing
in device tree documentation. Add it to complete documentation for
this driver.

Signed-off-by: default avatarSergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-by: default avatarNeilBrown <neil@brown.name>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c7092ed7

drivers/staging/mt7621-gpio/mediatek,mt7621-gpio.txt

+8 −1
Original line number Diff line number Diff line
@@ -4,12 +4,16 @@ The IP core used inside these SoCs has 3 banks of 32 GPIOs each. 
The registers of all the banks are interwoven inside one single IO range.

We load one GPIO controller instance per bank. To make this possible

we support 2 types of nodes. The parent node defines the memory I/O range and

has 3 children each describing a single bank.

has 3 children each describing a single bank. Also the GPIO controller can receive

interrupts on any of the GPIOs, either edge or level. It then interrupts the CPU

using GIC INT12.



Required properties for the top level node:

- compatible:

  - "mediatek,mt7621-gpio" for Mediatek controllers

- reg : Physical base address and length of the controller's registers

- interrupt-parent : phandle of the parent interrupt controller.

- interrupts = Interrupt specifier for the controllers interrupt



Required properties for the GPIO bank node:

- compatible:
@@ -28,6 +32,9 @@ Example: 
		compatible = "mediatek,mt7621-gpio";

		reg = <0x600 0x100>;



		interrupt-parent = <&gic>;

		interrupts = <GIC_SHARED 12 IRQ_TYPE_LEVEL_HIGH>;



		gpio0: bank@0 {

			reg = <0>;

			compatible = "mediatek,mt7621-gpio-bank";