| Message ID | 20170821193142.29688-3-danilokrummrich@dk-develop.de (mailing list archive) |
|---|---|
| State | Under Review |
| Headers | show |
On Mon, Aug 21, 2017 at 09:31:42PM +0200, Danilo Krummrich wrote: > The PS/2 gpio device binding defines the gpio pins (data and clock) > as well as the interrupt which should be used to drive the ps/2 bus. > It is expected to get an interrupt on the falling edge of the clock > line. > > Also it can be configured whether the host should support writing to > the device. > > Signed-off-by: Danilo Krummrich <danilokrummrich@dk-develop.de> > --- > .../devicetree/bindings/serio/ps2-gpio.txt | 23 ++++++++++++++++++++++ > 1 file changed, 23 insertions(+) > create mode 100644 Documentation/devicetree/bindings/serio/ps2-gpio.txt Acked-by: Rob Herring <robh@kernel.org> -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Fri, Aug 25, 2017 at 01:03:23PM -0500, Rob Herring wrote: > On Mon, Aug 21, 2017 at 09:31:42PM +0200, Danilo Krummrich wrote: > > The PS/2 gpio device binding defines the gpio pins (data and clock) > > as well as the interrupt which should be used to drive the ps/2 bus. > > It is expected to get an interrupt on the falling edge of the clock > > line. > > > > Also it can be configured whether the host should support writing to > > the device. > > > > Signed-off-by: Danilo Krummrich <danilokrummrich@dk-develop.de> > > --- > > .../devicetree/bindings/serio/ps2-gpio.txt | 23 ++++++++++++++++++++++ > > 1 file changed, 23 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/serio/ps2-gpio.txt > > Acked-by: Rob Herring <robh@kernel.org> Applied, thank you. >
diff --git a/Documentation/devicetree/bindings/serio/ps2-gpio.txt b/Documentation/devicetree/bindings/serio/ps2-gpio.txt new file mode 100644 index 000000000000..7b7bc9cdf986 --- /dev/null +++ b/Documentation/devicetree/bindings/serio/ps2-gpio.txt @@ -0,0 +1,23 @@ +Device-Tree binding for ps/2 gpio device + +Required properties: + - compatible = "ps2-gpio" + - data-gpios: the data pin + - clk-gpios: the clock pin + - interrupts: Should trigger on the falling edge of the clock line. + +Optional properties: + - write-enable: Indicates whether write function is provided + to serio device. Possibly providing the write fn will not work, because + of the tough timing requirements. + +Example nodes: + +ps2@0 { + compatible = "ps2-gpio"; + interrupt-parent = <&gpio>; + interrupts = <23 IRQ_TYPE_EDGE_FALLING>; + data-gpios = <&gpio 24 GPIO_ACTIVE_HIGH>; + clk-gpios = <&gpio 23 GPIO_ACTIVE_HIGH>; + write-enable; +};
The PS/2 gpio device binding defines the gpio pins (data and clock) as well as the interrupt which should be used to drive the ps/2 bus. It is expected to get an interrupt on the falling edge of the clock line. Also it can be configured whether the host should support writing to the device. Signed-off-by: Danilo Krummrich <danilokrummrich@dk-develop.de> --- .../devicetree/bindings/serio/ps2-gpio.txt | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 Documentation/devicetree/bindings/serio/ps2-gpio.txt