From a684fa4d2270a6465b0c6e165ac28bd36614c9cf Mon Sep 17 00:00:00 2001 From: "Herve Codina (Schneider Electric)" Date: Wed, 14 Jan 2026 10:39:37 +0100 Subject: [PATCH] ARM: dts: r9a06g032: Add support for GPIO interrupts In the RZ/N1 SoC, the GPIO interrupts are multiplexed using the GPIO Interrupt Multiplexer. Add the multiplexer node and connect GPIO interrupt lines to the multiplexer. The interrupt-map available in the multiplexer node has to be updated in dts files depending on the GPIO usage. Indeed, the usage of an interrupt for a GPIO is board dependent. Up to 8 GPIOs can be used as an interrupt line (one per multiplexer output interrupt). Signed-off-by: Herve Codina (Schneider Electric) Reviewed-by: Bartosz Golaszewski Reviewed-by: Linus Walleij Reviewed-by: Wolfram Sang Tested-by: Wolfram Sang Link: https://patch.msgid.link/20260114093938.1089936-9-herve.codina@bootlin.com Signed-off-by: Geert Uytterhoeven --- arch/arm/boot/dts/renesas/r9a06g032.dtsi | 41 ++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/arch/arm/boot/dts/renesas/r9a06g032.dtsi b/arch/arm/boot/dts/renesas/r9a06g032.dtsi index 932e39c3ddafb..f4f760aff28bd 100644 --- a/arch/arm/boot/dts/renesas/r9a06g032.dtsi +++ b/arch/arm/boot/dts/renesas/r9a06g032.dtsi @@ -549,6 +549,14 @@ gpio-controller; #gpio-cells = <2>; snps,nr-gpios = <32>; + + interrupt-controller; + interrupt-parent = <&gpioirqmux>; + interrupts = < 0 1 2 3 4 5 6 7 + 8 9 10 11 12 13 14 15 + 16 17 18 19 20 21 22 23 + 24 25 26 27 28 29 30 31>; + #interrupt-cells = <2>; }; /* GPIO0b[0..1] connected to pins GPIO1..2 */ @@ -590,6 +598,14 @@ gpio-controller; #gpio-cells = <2>; snps,nr-gpios = <32>; + + interrupt-controller; + interrupt-parent = <&gpioirqmux>; + interrupts = <32 33 34 35 36 37 38 39 + 40 41 42 43 44 45 46 47 + 48 49 50 51 52 53 54 55 + 56 57 58 59 60 61 62 63>; + #interrupt-cells = <2>; }; /* GPIO1b[0..1] connected to pins GPIO55..56 */ @@ -621,6 +637,14 @@ gpio-controller; #gpio-cells = <2>; snps,nr-gpios = <32>; + + interrupt-controller; + interrupt-parent = <&gpioirqmux>; + interrupts = <64 65 66 67 68 69 70 71 + 72 73 74 75 76 77 78 79 + 80 81 82 83 84 85 86 87 + 88 89 90 91 92 93 94 95>; + #interrupt-cells = <2>; }; /* GPIO2b[0..9] connected to pins GPIO160..169 */ @@ -633,6 +657,23 @@ }; }; + gpioirqmux: interrupt-controller@51000480 { + compatible = "renesas,r9a06g032-gpioirqmux", "renesas,rzn1-gpioirqmux"; + reg = <0x51000480 0x20>; + #interrupt-cells = <1>; + #address-cells = <0>; + interrupt-map-mask = <0x7f>; + + /* + * Example mapping entry. Board DTs need to overwrite + * 'interrupt-map' with their specific mapping. Check + * the irqmux binding documentation for details. + */ + interrupt-map = <0 &gic GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>; + + status = "disabled"; + }; + can0: can@52104000 { compatible = "renesas,r9a06g032-sja1000", "renesas,rzn1-sja1000"; reg = <0x52104000 0x800>; -- 2.47.3