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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/renesas,rspi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas (Quad) Serial Peripheral Interface (RSPI/QSPI)
+
+maintainers:
+ - Geert Uytterhoeven <geert+renesas@glider.be>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - renesas,rspi-sh7757 # SH7757
+ - const: renesas,rspi # Legacy SH
+
+ - items:
+ - enum:
+ - renesas,rspi-r7s72100 # RZ/A1H
+ - renesas,rspi-r7s9210 # RZ/A2
+ - const: renesas,rspi-rz # RZ/A
+
+ - items:
+ - enum:
+ - renesas,qspi-r8a7743 # RZ/G1M
+ - renesas,qspi-r8a7744 # RZ/G1N
+ - renesas,qspi-r8a7745 # RZ/G1E
+ - renesas,qspi-r8a77470 # RZ/G1C
+ - renesas,qspi-r8a7790 # R-Car H2
+ - renesas,qspi-r8a7791 # R-Car M2-W
+ - renesas,qspi-r8a7792 # R-Car V2H
+ - renesas,qspi-r8a7793 # R-Car M2-N
+ - renesas,qspi-r8a7794 # R-Car E2
+ - const: renesas,qspi # R-Car Gen2 and RZ/G1
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ oneOf:
+ - items:
+ - description: A combined interrupt
+ - items:
+ - description: Error interrupt (SPEI)
+ - description: Receive Interrupt (SPRI)
+ - description: Transmit Interrupt (SPTI)
+
+ interrupt-names:
+ oneOf:
+ - items:
+ - const: mux
+ - items:
+ - const: error
+ - const: rx
+ - const: tx
+
+ clocks:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ dmas:
+ description:
+ Must contain a list of pairs of references to DMA specifiers, one for
+ transmission, and one for reception.
+
+ dma-names:
+ minItems: 2
+ maxItems: 4
+ items:
+ enum:
+ - tx
+ - rx
+
+ num-cs:
+ description: |
+ Total number of native chip selects.
+ Hardware limitations related to chip selects:
+ - When using GPIO chip selects, at least one native chip select must
+ be left unused, as it will be driven anyway.
+ minimum: 1
+ maximum: 2
+ default: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - power-domains
+ - '#address-cells'
+ - '#size-cells'
+
+allOf:
+ - $ref: spi-controller.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,rspi-rz
+ then:
+ properties:
+ interrupts:
+ minItems: 3
+ required:
+ - interrupt-names
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,qspi
+ then:
+ required:
+ - resets
+
+examples:
+ - |
+ #include <dt-bindings/clock/r8a7791-cpg-mssr.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/r8a7791-sysc.h>
+
+ qspi: spi@e6b10000 {
+ compatible = "renesas,qspi-r8a7791", "renesas,qspi";
+ reg = <0xe6b10000 0x2c>;
+ interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 917>;
+ dmas = <&dmac0 0x17>, <&dmac0 0x18>, <&dmac1 0x17>, <&dmac1 0x18>;
+ dma-names = "tx", "rx", "tx", "rx";
+ power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
+ resets = <&cpg 917>;
+ num-cs = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };