81 lines
3.6 KiB
Plaintext
Executable file
81 lines
3.6 KiB
Plaintext
Executable file
* Renesas R-Car GPIO Controller
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Required Properties:
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- compatible: should contain one or more of the following:
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- "renesas,gpio-r8a7743": for R8A7743 (RZ/G1M) compatible GPIO controller.
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- "renesas,gpio-r8a7745": for R8A7745 (RZ/G1E) compatible GPIO controller.
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- "renesas,gpio-r8a77470": for R8A77470 (RZ/G1C) compatible GPIO controller.
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- "renesas,gpio-r8a7778": for R8A7778 (R-Car M1) compatible GPIO controller.
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- "renesas,gpio-r8a7779": for R8A7779 (R-Car H1) compatible GPIO controller.
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- "renesas,gpio-r8a7790": for R8A7790 (R-Car H2) compatible GPIO controller.
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- "renesas,gpio-r8a7791": for R8A7791 (R-Car M2-W) compatible GPIO controller.
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- "renesas,gpio-r8a7792": for R8A7792 (R-Car V2H) compatible GPIO controller.
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- "renesas,gpio-r8a7793": for R8A7793 (R-Car M2-N) compatible GPIO controller.
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- "renesas,gpio-r8a7794": for R8A7794 (R-Car E2) compatible GPIO controller.
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- "renesas,gpio-r8a7795": for R8A7795 (R-Car H3) compatible GPIO controller.
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- "renesas,gpio-r8a7796": for R8A7796 (R-Car M3-W) compatible GPIO controller.
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- "renesas,gpio-r8a77965": for R8A77965 (R-Car M3-N) compatible GPIO controller.
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- "renesas,gpio-r8a77970": for R8A77970 (R-Car V3M) compatible GPIO controller.
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- "renesas,gpio-r8a77980": for R8A77980 (R-Car V3H) compatible GPIO controller.
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- "renesas,gpio-r8a77990": for R8A77990 (R-Car E3) compatible GPIO controller.
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- "renesas,gpio-r8a77995": for R8A77995 (R-Car D3) compatible GPIO controller.
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- "renesas,rcar-gen1-gpio": for a generic R-Car Gen1 GPIO controller.
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- "renesas,rcar-gen2-gpio": for a generic R-Car Gen2 or RZ/G1 GPIO controller.
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- "renesas,rcar-gen3-gpio": for a generic R-Car Gen3 GPIO controller.
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- "renesas,gpio-rcar": deprecated.
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When compatible with the generic version nodes must list the
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SoC-specific version corresponding to the platform first followed by
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the generic version.
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- reg: Base address and length of each memory resource used by the GPIO
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controller hardware module.
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- interrupts: Interrupt specifier for the controllers interrupt.
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- gpio-controller: Marks the device node as a gpio controller.
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- #gpio-cells: Should be 2. The first cell is the GPIO number and the second
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cell specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>. Only the
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GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW flags are supported.
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- gpio-ranges: Range of pins managed by the GPIO controller.
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Optional properties:
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- clocks: Must contain a reference to the functional clock. The property is
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mandatory if the hardware implements a controllable functional clock for
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the GPIO instance.
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Please refer to gpio.txt in this directory for details of gpio-ranges property
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and the common GPIO bindings used by client devices.
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The GPIO controller also acts as an interrupt controller. It uses the default
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two cells specifier as described in Documentation/devicetree/bindings/
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interrupt-controller/interrupts.txt.
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Example: R8A7779 (R-Car H1) GPIO controller nodes
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gpio0: gpio@ffc40000 {
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compatible = "renesas,gpio-r8a7779", "renesas,rcar-gen1-gpio";
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reg = <0xffc40000 0x2c>;
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interrupt-parent = <&gic>;
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interrupts = <0 141 0x4>;
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#gpio-cells = <2>;
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gpio-controller;
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gpio-ranges = <&pfc 0 0 32>;
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interrupt-controller;
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#interrupt-cells = <2>;
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};
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...
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gpio6: gpio@ffc46000 {
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compatible = "renesas,gpio-r8a7779", "renesas,rcar-gen1-gpio";
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reg = <0xffc46000 0x2c>;
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interrupt-parent = <&gic>;
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interrupts = <0 147 0x4>;
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#gpio-cells = <2>;
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gpio-controller;
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gpio-ranges = <&pfc 0 192 9>;
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interrupt-controller;
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#interrupt-cells = <2>;
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};
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