diff options
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt')
-rw-r--r-- | kernel/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/kernel/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt b/kernel/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt index fdd8046e6..b321b2678 100644 --- a/kernel/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt +++ b/kernel/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt @@ -16,6 +16,9 @@ Required properties: "allwinner,sun7i-a20-pinctrl" "allwinner,sun8i-a23-pinctrl" "allwinner,sun8i-a23-r-pinctrl" + "allwinner,sun8i-a33-pinctrl" + "allwinner,sun8i-a83t-pinctrl" + - reg: Should contain the register physical address and length for the pin controller. @@ -46,7 +49,7 @@ Optional subnode-properties: Examples: -pinctrl@01c20800 { +pio: pinctrl@01c20800 { compatible = "allwinner,sun5i-a13-pinctrl"; reg = <0x01c20800 0x400>; #address-cells = <1>; @@ -66,3 +69,38 @@ pinctrl@01c20800 { allwinner,pull = <0>; }; }; + + +GPIO and interrupt controller +----------------------------- + +This hardware also acts as a GPIO controller and an interrupt +controller. + +Consumers that would want to refer to one or the other (or both) +should provide through the usual *-gpios and interrupts properties a +cell with 3 arguments, first the number of the bank, then the pin +inside that bank, and finally the flags for the GPIO/interrupts. + +Example: + +xio: gpio@38 { + compatible = "nxp,pcf8574a"; + reg = <0x38>; + + gpio-controller; + #gpio-cells = <2>; + + interrupt-parent = <&pio>; + interrupts = <6 0 IRQ_TYPE_EDGE_FALLING>; + interrupt-controller; + #interrupt-cells = <2>; +}; + +reg_usb1_vbus: usb1-vbus { + compatible = "regulator-fixed"; + regulator-name = "usb1-vbus"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + gpio = <&pio 7 6 GPIO_ACTIVE_HIGH>; +}; |