diff options
Diffstat (limited to 'dts/Bindings/serio')
-rw-r--r-- | dts/Bindings/serio/allwinner,sun4i-a10-ps2.yaml | 2 | ||||
-rw-r--r-- | dts/Bindings/serio/arm,pl050.yaml | 67 | ||||
-rw-r--r-- | dts/Bindings/serio/ps2-gpio.txt | 23 | ||||
-rw-r--r-- | dts/Bindings/serio/ps2-gpio.yaml | 64 |
4 files changed, 132 insertions, 24 deletions
diff --git a/dts/Bindings/serio/allwinner,sun4i-a10-ps2.yaml b/dts/Bindings/serio/allwinner,sun4i-a10-ps2.yaml index 2ecab8ed70..7fa70fd1f2 100644 --- a/dts/Bindings/serio/allwinner,sun4i-a10-ps2.yaml +++ b/dts/Bindings/serio/allwinner,sun4i-a10-ps2.yaml @@ -4,7 +4,7 @@ $id: http://devicetree.org/schemas/serio/allwinner,sun4i-a10-ps2.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: Allwinner A10 PS2 Host Controller Device Tree Bindings +title: Allwinner A10 PS2 Host Controller maintainers: - Chen-Yu Tsai <wens@csie.org> diff --git a/dts/Bindings/serio/arm,pl050.yaml b/dts/Bindings/serio/arm,pl050.yaml new file mode 100644 index 0000000000..d80f58d154 --- /dev/null +++ b/dts/Bindings/serio/arm,pl050.yaml @@ -0,0 +1,67 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/serio/arm,pl050.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Arm Ltd. PrimeCell PL050 PS/2 Keyboard/Mouse Interface + +maintainers: + - Andre Przywara <andre.przywara@arm.com> + +description: + The Arm PrimeCell PS2 Keyboard/Mouse Interface (KMI) is an AMBA compliant + peripheral that can be used to implement a keyboard or mouse interface that + is IBM PS2 or AT compatible. + +# We need a select here so we don't match all nodes with 'arm,primecell' +select: + properties: + compatible: + contains: + const: arm,pl050 + required: + - compatible + +properties: + compatible: + items: + - const: arm,pl050 + - const: arm,primecell + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: KMI reference clock, used to generate the bus timing + - description: APB register access clock + + clock-names: + items: + - const: KMIREFCLK + - const: apb_pclk + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + serio@70000 { + compatible = "arm,pl050", "arm,primecell"; + reg = <0x070000 0x1000>; + interrupts = <8>; + clocks = <&mb_clk24mhz>, <&soc_smc50mhz>; + clock-names = "KMIREFCLK", "apb_pclk"; + }; + +... diff --git a/dts/Bindings/serio/ps2-gpio.txt b/dts/Bindings/serio/ps2-gpio.txt deleted file mode 100644 index 7b7bc9cdf9..0000000000 --- a/dts/Bindings/serio/ps2-gpio.txt +++ /dev/null @@ -1,23 +0,0 @@ -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; -}; diff --git a/dts/Bindings/serio/ps2-gpio.yaml b/dts/Bindings/serio/ps2-gpio.yaml new file mode 100644 index 0000000000..99848bc34f --- /dev/null +++ b/dts/Bindings/serio/ps2-gpio.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/serio/ps2-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: GPIO based PS/2 + +maintainers: + - Danilo Krummrich <danilokrummrich@dk-develop.de> + +properties: + compatible: + const: ps2-gpio + + data-gpios: + description: + the gpio used for the data signal - this should be flagged as + active high using open drain with (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN) + from <dt-bindings/gpio/gpio.h> since the signal is open drain by + definition + maxItems: 1 + + clk-gpios: + description: + the gpio used for the clock signal - this should be flagged as + active high using open drain with (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN) + from <dt-bindings/gpio/gpio.h> since the signal is open drain by + definition + maxItems: 1 + + interrupts: + description: + The given interrupt should trigger on the falling edge of the clock line. + maxItems: 1 + + write-enable: + type: boolean + description: + Indicates whether write function is provided to serio device. Possibly + providing the write function will not work, because of the tough timing + requirements. + +required: + - compatible + - data-gpios + - clk-gpios + - interrupts + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + + ps2 { + compatible = "ps2-gpio"; + interrupt-parent = <&gpio>; + interrupts = <23 IRQ_TYPE_EDGE_FALLING>; + data-gpios = <&gpio 24 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + clk-gpios = <&gpio 23 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; + write-enable; + }; |