On Thu, Mar 24, 2016 at 05:50:09PM +0100, Neil Armstrong wrote: > Add pinctrl and gpio DT bindings for PLX Technology OXNAS SoC Family. > This version supports the ARM926EJ-S based OX810SE SoC with 34 IO pins. > > Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx> > --- > .../devicetree/bindings/gpio/gpio_oxnas.txt | 47 ++++++++++++++++++ > .../bindings/pinctrl/plxtech,pinctrl.txt | 57 ++++++++++++++++++++++ > 2 files changed, 104 insertions(+) > create mode 100644 Documentation/devicetree/bindings/gpio/gpio_oxnas.txt > create mode 100644 Documentation/devicetree/bindings/pinctrl/plxtech,pinctrl.txt > > diff --git a/Documentation/devicetree/bindings/gpio/gpio_oxnas.txt b/Documentation/devicetree/bindings/gpio/gpio_oxnas.txt > new file mode 100644 > index 0000000..4530fa9 > --- /dev/null > +++ b/Documentation/devicetree/bindings/gpio/gpio_oxnas.txt > @@ -0,0 +1,47 @@ > +* PLX Technology OXNAS SoC GPIO Controller > + > +Required properties: > + - compatible: "oxsemi,ox810se-gpio" > + - reg: Base address and length for the device. > + - interrupts: The port interrupt shared by all pins. > + - gpio-controller: Marks the port as GPIO controller. > + - #gpio-cells: Two. The first cell is the pin number and > + the second cell is used to specify the gpio polarity as defined in > + defined in <dt-bindings/gpio/gpio.h>: > + 0 = GPIO_ACTIVE_HIGH > + 1 = GPIO_ACTIVE_LOW > + - interrupt-controller: Marks the device node as an interrupt controller. > + - #interrupt-cells: Two. The first cell is the GPIO number and second cell > + is used to specify the trigger type as defined in > + <dt-bindings/interrupt-controller/irq.h>: > + IRQ_TYPE_EDGE_RISING > + IRQ_TYPE_EDGE_FALLING > + IRQ_TYPE_EDGE_BOTH > + - plxtech,gpio-bank: Specifies which bank a controller owns. How is this used? > + - gpio-ranges: Interaction with the PINCTRL subsystem. > + - ngpios: Specifies the gpio lines count in this specific bank. > + > +Example: > + > +gpio0: gpio@0 { > + compatible = "oxsemi,ox810se-gpio"; > + reg = <0x000000 0x100000>; > + interrupts = <21>; > + #gpio-cells = <2>; > + gpio-controller; > + interrupt-controller; > + #interrupt-cells = <2>; > + plxtech,gpio-bank = <0>; > + gpio-ranges = <&pinctrl 0 0 32>; > + ngpios = <32>; Is 32 the max? It should not be needed then. > +}; > + > +keys { > + ... > + > + button@sw1 { sw1 is not a unit-address. Just do "sw1-button". > + label = "ESC"; > + linux,code = <1>; > + gpios = <&gpio0 12 0>; > + }; > +}; -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html