diff options
Diffstat (limited to 'dts/Bindings/gpio')
| -rw-r--r-- | dts/Bindings/gpio/brcm,xgs-iproc-gpio.yaml | 2 | ||||
| -rw-r--r-- | dts/Bindings/gpio/fsl-imx-gpio.txt | 35 | ||||
| -rw-r--r-- | dts/Bindings/gpio/fsl-imx-gpio.yaml | 68 | ||||
| -rw-r--r-- | dts/Bindings/gpio/gpio-mxs.txt | 88 | ||||
| -rw-r--r-- | dts/Bindings/gpio/gpio-mxs.yaml | 136 | ||||
| -rw-r--r-- | dts/Bindings/gpio/renesas,em-gio.yaml | 70 | ||||
| -rw-r--r-- | dts/Bindings/gpio/renesas,gpio-rcar.txt | 94 | ||||
| -rw-r--r-- | dts/Bindings/gpio/renesas,rcar-gpio.yaml | 144 | ||||
| -rw-r--r-- | dts/Bindings/gpio/sifive,gpio.yaml | 2 | ||||
| -rw-r--r-- | dts/Bindings/gpio/snps,dw-apb-gpio.yaml | 133 | ||||
| -rw-r--r-- | dts/Bindings/gpio/snps-dwapb-gpio.txt | 65 |
11 files changed, 553 insertions, 284 deletions
diff --git a/dts/Bindings/gpio/brcm,xgs-iproc-gpio.yaml b/dts/Bindings/gpio/brcm,xgs-iproc-gpio.yaml index 5f1ed20e43..4f2cbd8307 100644 --- a/dts/Bindings/gpio/brcm,xgs-iproc-gpio.yaml +++ b/dts/Bindings/gpio/brcm,xgs-iproc-gpio.yaml @@ -27,7 +27,7 @@ properties: gpio-controller: true '#gpio-cells': - const: 2 + const: 2 ngpios: minimum: 0 diff --git a/dts/Bindings/gpio/fsl-imx-gpio.txt b/dts/Bindings/gpio/fsl-imx-gpio.txt deleted file mode 100644 index b4cd9f906c..0000000000 --- a/dts/Bindings/gpio/fsl-imx-gpio.txt +++ /dev/null @@ -1,35 +0,0 @@ -* Freescale i.MX/MXC GPIO controller - -Required properties: -- compatible : Should be "fsl,<soc>-gpio" -- reg : Address and length of the register set for the device -- interrupts : Should be the port interrupt shared by all 32 pins, if - one number. If two numbers, the first one is the interrupt shared - by low 16 pins and the second one is for high 16 pins. -- gpio-controller : Marks the device node as a gpio controller. -- #gpio-cells : Should be two. The first cell is the pin number and - the second cell is used to specify the gpio polarity: - 0 = active high - 1 = active low -- interrupt-controller: Marks the device node as an interrupt controller. -- #interrupt-cells : Should be 2. The first cell is the GPIO number. - The second cell bits[3:0] is used to specify trigger type and level flags: - 1 = low-to-high edge triggered. - 2 = high-to-low edge triggered. - 4 = active high level-sensitive. - 8 = active low level-sensitive. - -Optional properties: -- clocks: the clock for clocking the GPIO silicon - -Example: - -gpio0: gpio@73f84000 { - compatible = "fsl,imx51-gpio", "fsl,imx35-gpio"; - reg = <0x73f84000 0x4000>; - interrupts = <50 51>; - gpio-controller; - #gpio-cells = <2>; - interrupt-controller; - #interrupt-cells = <2>; -}; diff --git a/dts/Bindings/gpio/fsl-imx-gpio.yaml b/dts/Bindings/gpio/fsl-imx-gpio.yaml new file mode 100644 index 0000000000..0b223abe8c --- /dev/null +++ b/dts/Bindings/gpio/fsl-imx-gpio.yaml @@ -0,0 +1,68 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/fsl-imx-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale i.MX/MXC GPIO controller + +maintainers: + - Anson Huang <Anson.Huang@nxp.com> + +properties: + compatible: + enum: + - fsl,imx1-gpio + - fsl,imx21-gpio + - fsl,imx31-gpio + - fsl,imx35-gpio + - fsl,imx7d-gpio + + reg: + maxItems: 1 + + interrupts: + description: | + Should be the port interrupt shared by all 32 pins, if one number. + If two numbers, the first one is the interrupt shared by low 16 pins + and the second one is for high 16 pins. + minItems: 1 + maxItems: 2 + + interrupt-controller: true + + "#interrupt-cells": + const: 2 + + clocks: + maxItems: 1 + + "#gpio-cells": + const: 2 + + gpio-controller: true + +required: + - compatible + - reg + - interrupts + - interrupt-controller + - "#interrupt-cells" + - "#gpio-cells" + - gpio-controller + +additionalProperties: false + +examples: + - | + gpio0: gpio@73f84000 { + compatible = "fsl,imx35-gpio"; + reg = <0x73f84000 0x4000>; + interrupts = <50 51>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + }; + +... diff --git a/dts/Bindings/gpio/gpio-mxs.txt b/dts/Bindings/gpio/gpio-mxs.txt deleted file mode 100644 index 1e677a47b8..0000000000 --- a/dts/Bindings/gpio/gpio-mxs.txt +++ /dev/null @@ -1,88 +0,0 @@ -* Freescale MXS GPIO controller - -The Freescale MXS GPIO controller is part of MXS PIN controller. The -GPIOs are organized in port/bank. Each port consists of 32 GPIOs. - -As the GPIO controller is embedded in the PIN controller and all the -GPIO ports share the same IO space with PIN controller, the GPIO node -will be represented as sub-nodes of MXS pinctrl node. - -Required properties for GPIO node: -- compatible : Should be "fsl,<soc>-gpio". The supported SoCs include - imx23 and imx28. -- interrupts : Should be the port interrupt shared by all 32 pins. -- gpio-controller : Marks the device node as a gpio controller. -- #gpio-cells : Should be two. The first cell is the pin number and - the second cell is used to specify the gpio polarity: - 0 = active high - 1 = active low -- interrupt-controller: Marks the device node as an interrupt controller. -- #interrupt-cells : Should be 2. The first cell is the GPIO number. - The second cell bits[3:0] is used to specify trigger type and level flags: - 1 = low-to-high edge triggered. - 2 = high-to-low edge triggered. - 4 = active high level-sensitive. - 8 = active low level-sensitive. - -Note: Each GPIO port should have an alias correctly numbered in "aliases" -node. - -Examples: - -aliases { - gpio0 = &gpio0; - gpio1 = &gpio1; - gpio2 = &gpio2; - gpio3 = &gpio3; - gpio4 = &gpio4; -}; - -pinctrl@80018000 { - compatible = "fsl,imx28-pinctrl", "simple-bus"; - reg = <0x80018000 2000>; - - gpio0: gpio@0 { - compatible = "fsl,imx28-gpio"; - interrupts = <127>; - gpio-controller; - #gpio-cells = <2>; - interrupt-controller; - #interrupt-cells = <2>; - }; - - gpio1: gpio@1 { - compatible = "fsl,imx28-gpio"; - interrupts = <126>; - gpio-controller; - #gpio-cells = <2>; - interrupt-controller; - #interrupt-cells = <2>; - }; - - gpio2: gpio@2 { - compatible = "fsl,imx28-gpio"; - interrupts = <125>; - gpio-controller; - #gpio-cells = <2>; - interrupt-controller; - #interrupt-cells = <2>; - }; - - gpio3: gpio@3 { - compatible = "fsl,imx28-gpio"; - interrupts = <124>; - gpio-controller; - #gpio-cells = <2>; - interrupt-controller; - #interrupt-cells = <2>; - }; - - gpio4: gpio@4 { - compatible = "fsl,imx28-gpio"; - interrupts = <123>; - gpio-controller; - #gpio-cells = <2>; - interrupt-controller; - #interrupt-cells = <2>; - }; -}; diff --git a/dts/Bindings/gpio/gpio-mxs.yaml b/dts/Bindings/gpio/gpio-mxs.yaml new file mode 100644 index 0000000000..ccf5b50e79 --- /dev/null +++ b/dts/Bindings/gpio/gpio-mxs.yaml @@ -0,0 +1,136 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/gpio-mxs.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale MXS GPIO controller + +maintainers: + - Shawn Guo <shawn.guo@linaro.org> + - Anson Huang <Anson.Huang@nxp.com> + +description: | + The Freescale MXS GPIO controller is part of MXS PIN controller. + The GPIOs are organized in port/bank, each port consists of 32 GPIOs. + As the GPIO controller is embedded in the PIN controller and all the + GPIO ports share the same IO space with PIN controller, the GPIO node + will be represented as sub-nodes of MXS pinctrl node. + +properties: + compatible: + enum: + - fsl,imx23-pinctrl + - fsl,imx28-pinctrl + + '#address-cells': + const: 1 + '#size-cells': + const: 0 + + reg: + maxItems: 1 + +patternProperties: + "gpio@[0-9]+$": + type: object + properties: + compatible: + enum: + - fsl,imx23-gpio + - fsl,imx28-gpio + + reg: + maxItems: 1 + + interrupts: + description: Should be the port interrupt shared by all 32 pins. + maxItems: 1 + + interrupt-controller: true + + "#interrupt-cells": + const: 2 + + "#gpio-cells": + const: 2 + + gpio-controller: true + + required: + - compatible + - reg + - interrupts + - interrupt-controller + - "#interrupt-cells" + - "#gpio-cells" + - gpio-controller + + additionalProperties: false + +required: + - compatible + - reg + - '#address-cells' + - '#size-cells' + +additionalProperties: false + +examples: + - | + pinctrl@80018000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "fsl,imx28-pinctrl"; + reg = <0x80018000 0x2000>; + + gpio@0 { + compatible = "fsl,imx28-gpio"; + reg = <0>; + interrupts = <127>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpio@1 { + compatible = "fsl,imx28-gpio"; + reg = <1>; + interrupts = <126>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpio@2 { + compatible = "fsl,imx28-gpio"; + reg = <2>; + interrupts = <125>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpio@3 { + compatible = "fsl,imx28-gpio"; + reg = <3>; + interrupts = <124>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpio@4 { + compatible = "fsl,imx28-gpio"; + reg = <4>; + interrupts = <123>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + }; + }; diff --git a/dts/Bindings/gpio/renesas,em-gio.yaml b/dts/Bindings/gpio/renesas,em-gio.yaml new file mode 100644 index 0000000000..8bdef812c8 --- /dev/null +++ b/dts/Bindings/gpio/renesas,em-gio.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/renesas,em-gio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas EMMA Mobile General Purpose I/O Interface + +maintainers: + - Magnus Damm <magnus.damm@gmail.com> + +properties: + compatible: + const: renesas,em-gio + + reg: + items: + - description: First set of contiguous registers + - description: Second set of contiguous registers + + interrupts: + items: + - description: Interrupt for the first set of 16 GPIO ports + - description: Interrupt for the second set of 16 GPIO ports + + gpio-controller: true + + '#gpio-cells': + const: 2 + + gpio-ranges: + maxItems: 1 + + ngpios: + minimum: 1 + maximum: 32 + + interrupt-controller: true + + '#interrupt-cells': + const: 2 + +required: + - compatible + - reg + - interrupts + - gpio-controller + - '#gpio-cells' + - gpio-ranges + - ngpios + - interrupt-controller + - '#interrupt-cells' + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + gpio0: gpio@e0050000 { + compatible = "renesas,em-gio"; + reg = <0xe0050000 0x2c>, <0xe0050040 0x20>; + interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pfc 0 0 32>; + ngpios = <32>; + interrupt-controller; + #interrupt-cells = <2>; + }; diff --git a/dts/Bindings/gpio/renesas,gpio-rcar.txt b/dts/Bindings/gpio/renesas,gpio-rcar.txt deleted file mode 100644 index 10dce84b15..0000000000 --- a/dts/Bindings/gpio/renesas,gpio-rcar.txt +++ /dev/null @@ -1,94 +0,0 @@ -* Renesas R-Car GPIO Controller - -Required Properties: - - - compatible: should contain one or more of the following: - - "renesas,gpio-r8a7743": for R8A7743 (RZ/G1M) compatible GPIO controller. - - "renesas,gpio-r8a7744": for R8A7744 (RZ/G1N) compatible GPIO controller. - - "renesas,gpio-r8a7745": for R8A7745 (RZ/G1E) compatible GPIO controller. - - "renesas,gpio-r8a77470": for R8A77470 (RZ/G1C) compatible GPIO controller. - - "renesas,gpio-r8a774a1": for R8A774A1 (RZ/G2M) compatible GPIO controller. - - "renesas,gpio-r8a774b1": for R8A774B1 (RZ/G2N) compatible GPIO controller. - - "renesas,gpio-r8a774c0": for R8A774C0 (RZ/G2E) compatible GPIO controller. - - "renesas,gpio-r8a7778": for R8A7778 (R-Car M1) compatible GPIO controller. - - "renesas,gpio-r8a7779": for R8A7779 (R-Car H1) compatible GPIO controller. - - "renesas,gpio-r8a7790": for R8A7790 (R-Car H2) compatible GPIO controller. - - "renesas,gpio-r8a7791": for R8A7791 (R-Car M2-W) compatible GPIO controller. - - "renesas,gpio-r8a7792": for R8A7792 (R-Car V2H) compatible GPIO controller. - - "renesas,gpio-r8a7793": for R8A7793 (R-Car M2-N) compatible GPIO controller. - - "renesas,gpio-r8a7794": for R8A7794 (R-Car E2) compatible GPIO controller. - - "renesas,gpio-r8a7795": for R8A7795 (R-Car H3) compatible GPIO controller. - - "renesas,gpio-r8a7796": for R8A77960 (R-Car M3-W) compatible GPIO controller. - - "renesas,gpio-r8a77961": for R8A77961 (R-Car M3-W+) compatible GPIO controller. - - "renesas,gpio-r8a77965": for R8A77965 (R-Car M3-N) compatible GPIO controller. - - "renesas,gpio-r8a77970": for R8A77970 (R-Car V3M) compatible GPIO controller. - - "renesas,gpio-r8a77980": for R8A77980 (R-Car V3H) compatible GPIO controller. - - "renesas,gpio-r8a77990": for R8A77990 (R-Car E3) compatible GPIO controller. - - "renesas,gpio-r8a77995": for R8A77995 (R-Car D3) compatible GPIO controller. - - "renesas,rcar-gen1-gpio": for a generic R-Car Gen1 GPIO controller. - - "renesas,rcar-gen2-gpio": for a generic R-Car Gen2 or RZ/G1 GPIO controller. - - "renesas,rcar-gen3-gpio": for a generic R-Car Gen3 or RZ/G2 GPIO controller. - - "renesas,gpio-rcar": deprecated. - - When compatible with the generic version nodes must list the - SoC-specific version corresponding to the platform first followed by - the generic version. - - - reg: Base address and length of each memory resource used by the GPIO - controller hardware module. - - - interrupts: Interrupt specifier for the controllers interrupt. - - - gpio-controller: Marks the device node as a gpio controller. - - #gpio-cells: Should be 2. The first cell is the GPIO number and the second - cell specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>. Only the - GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW flags are supported. - - gpio-ranges: See gpio.txt. - -Optional properties: - - - clocks: Must contain a reference to the functional clock. The property is - mandatory if the hardware implements a controllable functional clock for - the GPIO instance. - - - gpio-reserved-ranges: See gpio.txt. - -Please refer to gpio.txt in this directory for the common GPIO bindings used by -client devices. - -The GPIO controller also acts as an interrupt controller. It uses the default -two cells specifier as described in Documentation/devicetree/bindings/ -interrupt-controller/interrupts.txt. - -Example: R8A77470 (RZ/G1C) GPIO controller nodes - - gpio0: gpio@e6050000 { - compatible = "renesas,gpio-r8a77470", - "renesas,rcar-gen2-gpio"; - reg = <0 0xe6050000 0 0x50>; - interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>; - #gpio-cells = <2>; - gpio-controller; - gpio-ranges = <&pfc 0 0 23>; - #interrupt-cells = <2>; - interrupt-controller; - clocks = <&cpg CPG_MOD 912>; - power-domains = <&sysc R8A77470_PD_ALWAYS_ON>; - resets = <&cpg 912>; - }; - ... - gpio3: gpio@e6053000 { - compatible = "renesas,gpio-r8a77470", - "renesas,rcar-gen2-gpio"; - reg = <0 0xe6053000 0 0x50>; - interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; - #gpio-cells = <2>; - gpio-controller; - gpio-ranges = <&pfc 0 96 30>; - gpio-reserved-ranges = <17 10>; - #interrupt-cells = <2>; - interrupt-controller; - clocks = <&cpg CPG_MOD 909>; - power-domains = <&sysc R8A77470_PD_ALWAYS_ON>; - resets = <&cpg 909>; - }; diff --git a/dts/Bindings/gpio/renesas,rcar-gpio.yaml b/dts/Bindings/gpio/renesas,rcar-gpio.yaml new file mode 100644 index 0000000000..397d9383d1 --- /dev/null +++ b/dts/Bindings/gpio/renesas,rcar-gpio.yaml @@ -0,0 +1,144 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/renesas,rcar-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas R-Car General-Purpose Input/Output Ports (GPIO) + +maintainers: + - Geert Uytterhoeven <geert+renesas@glider.be> + +properties: + compatible: + oneOf: + - items: + - enum: + - renesas,gpio-r8a7778 # R-Car M1 + - renesas,gpio-r8a7779 # R-Car H1 + - const: renesas,rcar-gen1-gpio # R-Car Gen1 + + - items: + - enum: + - renesas,gpio-r8a7742 # RZ/G1H + - renesas,gpio-r8a7743 # RZ/G1M + - renesas,gpio-r8a7744 # RZ/G1N + - renesas,gpio-r8a7745 # RZ/G1E + - renesas,gpio-r8a77470 # RZ/G1C + - renesas,gpio-r8a7790 # R-Car H2 + - renesas,gpio-r8a7791 # R-Car M2-W + - renesas,gpio-r8a7792 # R-Car V2H + - renesas,gpio-r8a7793 # R-Car M2-N + - renesas,gpio-r8a7794 # R-Car E2 + - const: renesas,rcar-gen2-gpio # R-Car Gen2 or RZ/G1 + + - items: + - enum: + - renesas,gpio-r8a774a1 # RZ/G2M + - renesas,gpio-r8a774b1 # RZ/G2N + - renesas,gpio-r8a774c0 # RZ/G2E + - renesas,gpio-r8a7795 # R-Car H3 + - renesas,gpio-r8a7796 # R-Car M3-W + - renesas,gpio-r8a77961 # R-Car M3-W+ + - renesas,gpio-r8a77965 # R-Car M3-N + - renesas,gpio-r8a77970 # R-Car V3M + - renesas,gpio-r8a77980 # R-Car V3H + - renesas,gpio-r8a77990 # R-Car E3 + - renesas,gpio-r8a77995 # R-Car D3 + - const: renesas,rcar-gen3-gpio # R-Car Gen3 or RZ/G2 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + power-domains: + maxItems: 1 + + resets: + maxItems: 1 + + gpio-controller: true + + '#gpio-cells': + const: 2 + + interrupt-controller: true + + '#interrupt-cells': + const: 2 + + gpio-ranges: + maxItems: 1 + + gpio-reserved-ranges: + minItems: 1 + maxItems: 8 + +patternProperties: + "^.*$": + if: + type: object + then: + properties: + gpio-hog: true + gpios: true + input: true + output-high: true + output-low: true + line-name: true + + required: + - gpio-hog + - gpios + + additionalProperties: false + +required: + - compatible + - reg + - interrupts + - gpio-controller + - '#gpio-cells' + - gpio-ranges + - interrupt-controller + - '#interrupt-cells' + +if: + not: + properties: + compatible: + contains: + enum: + - renesas,rcar-gen1-gpio +then: + required: + - clocks + - power-domains + - resets + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/r8a77470-cpg-mssr.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/power/r8a77470-sysc.h> + gpio3: gpio@e6053000 { + compatible = "renesas,gpio-r8a77470", "renesas,rcar-gen2-gpio"; + reg = <0xe6053000 0x50>; + interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 909>; + power-domains = <&sysc R8A77470_PD_ALWAYS_ON>; + resets = <&cpg 909>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pfc 0 96 30>; + gpio-reserved-ranges = <17 10>; + interrupt-controller; + #interrupt-cells = <2>; + }; diff --git a/dts/Bindings/gpio/sifive,gpio.yaml b/dts/Bindings/gpio/sifive,gpio.yaml index 418e8381e0..a0efd8dc25 100644 --- a/dts/Bindings/gpio/sifive,gpio.yaml +++ b/dts/Bindings/gpio/sifive,gpio.yaml @@ -57,7 +57,7 @@ examples: compatible = "sifive,fu540-c000-gpio", "sifive,gpio0"; interrupt-parent = <&plic>; interrupts = <7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22>; - reg = <0x0 0x10060000 0x0 0x1000>; + reg = <0x10060000 0x1000>; clocks = <&tlclk PRCI_CLK_TLCLK>; gpio-controller; #gpio-cells = <2>; diff --git a/dts/Bindings/gpio/snps,dw-apb-gpio.yaml b/dts/Bindings/gpio/snps,dw-apb-gpio.yaml new file mode 100644 index 0000000000..1240f62892 --- /dev/null +++ b/dts/Bindings/gpio/snps,dw-apb-gpio.yaml @@ -0,0 +1,133 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/snps,dw-apb-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Synopsys DesignWare APB GPIO controller + +description: | + Synopsys DesignWare GPIO controllers have a configurable number of ports, + each of which are intended to be represented as child nodes with the generic + GPIO-controller properties as desribed in this bindings file. + +maintainers: + - Hoan Tran <hoan@os.amperecomputing.com> + - Serge Semin <fancer.lancer@gmail.com> + +properties: + $nodename: + pattern: "^gpio@[0-9a-f]+$" + + compatible: + const: snps,dw-apb-gpio + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + reg: + maxItems: 1 + + clocks: + minItems: 1 + items: + - description: APB interface clock source + - description: DW GPIO debounce reference clock source + + clock-names: + minItems: 1 + items: + - const: bus + - const: db + + resets: + maxItems: 1 + +patternProperties: + "^gpio-(port|controller)@[0-9a-f]+$": + type: object + properties: + compatible: + const: snps,dw-apb-gpio-port + + reg: + maxItems: 1 + + gpio-controller: true + + '#gpio-cells': + const: 2 + + snps,nr-gpios: + description: The number of GPIO pins exported by the port. + $ref: /schemas/types.yaml#/definitions/uint32 + default: 32 + minimum: 1 + maximum: 32 + + interrupts: + description: | + The interrupts to the parent controller raised when GPIOs generate + the interrupts. If the controller provides one combined interrupt + for all GPIOs, specify a single interrupt. If the controller provides + one interrupt for each GPIO, provide a list of interrupts that + correspond to each of the GPIO pins. + minItems: 1 + maxItems: 32 + + interrupt-controller: true + + '#interrupt-cells': + const: 2 + + required: + - compatible + - reg + - gpio-controller + - '#gpio-cells' + + dependencies: + interrupt-controller: [ interrupts ] + + additionalProperties: false + +additionalProperties: false + +required: + - compatible + - reg + - "#address-cells" + - "#size-cells" + +examples: + - | + gpio: gpio@20000 { + compatible = "snps,dw-apb-gpio"; + reg = <0x20000 0x1000>; + #address-cells = <1>; + #size-cells = <0>; + + porta: gpio-port@0 { + compatible = "snps,dw-apb-gpio-port"; + reg = <0>; + gpio-controller; + #gpio-cells = <2>; + snps,nr-gpios = <8>; + interrupt-controller; + #interrupt-cells = <2>; + interrupt-parent = <&vic1>; + interrupts = <0>; + }; + + portb: gpio-port@1 { + compatible = "snps,dw-apb-gpio-port"; + reg = <1>; + gpio-controller; + #gpio-cells = <2>; + snps,nr-gpios = <8>; + }; + }; +... diff --git a/dts/Bindings/gpio/snps-dwapb-gpio.txt b/dts/Bindings/gpio/snps-dwapb-gpio.txt deleted file mode 100644 index 839dd32ffe..0000000000 --- a/dts/Bindings/gpio/snps-dwapb-gpio.txt +++ /dev/null @@ -1,65 +0,0 @@ -* Synopsys DesignWare APB GPIO controller - -Required properties: -- compatible : Should contain "snps,dw-apb-gpio" -- reg : Address and length of the register set for the device. -- #address-cells : should be 1 (for addressing port subnodes). -- #size-cells : should be 0 (port subnodes). - -The GPIO controller has a configurable number of ports, each of which are -represented as child nodes with the following properties: - -Required properties: -- compatible : "snps,dw-apb-gpio-port" -- gpio-controller : Marks the device node as a gpio controller. -- #gpio-cells : Should be two. The first cell is the pin number and - the second cell is used to specify the gpio polarity: - 0 = active high - 1 = active low -- reg : The integer port index of the port, a single cell. - -Optional properties: -- interrupt-controller : The first port may be configured to be an interrupt -controller. -- #interrupt-cells : Specifies the number of cells needed to encode an - interrupt. Shall be set to 2. The first cell defines the interrupt number, - the second encodes the triger flags encoded as described in - Documentation/devicetree/bindings/interrupt-controller/interrupts.txt -- interrupts : The interrupts to the parent controller raised when GPIOs - generate the interrupts. If the controller provides one combined interrupt - for all GPIOs, specify a single interrupt. If the controller provides one - interrupt for each GPIO, provide a list of interrupts that correspond to each - of the GPIO pins. When specifying multiple interrupts, if any are unconnected, - use the interrupts-extended property to specify the interrupts and set the - interrupt controller handle for unused interrupts to 0. -- snps,nr-gpios : The number of pins in the port, a single cell. -- resets : Reset line for the controller. - -Example: - -gpio: gpio@20000 { - compatible = "snps,dw-apb-gpio"; - reg = <0x20000 0x1000>; - #address-cells = <1>; - #size-cells = <0>; - - porta: gpio@0 { - compatible = "snps,dw-apb-gpio-port"; - gpio-controller; - #gpio-cells = <2>; - snps,nr-gpios = <8>; - reg = <0>; - interrupt-controller; - #interrupt-cells = <2>; - interrupt-parent = <&vic1>; - interrupts = <0>; - }; - - portb: gpio@1 { - compatible = "snps,dw-apb-gpio-port"; - gpio-controller; - #gpio-cells = <2>; - snps,nr-gpios = <8>; - reg = <1>; - }; -}; |