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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) <herve.codina@bootlin.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://patch.msgid.link/20260114093938.1089936-9-herve.codina@bootlin.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Herve Codina (Schneider Electric) 2026-01-14 10:39:37 +01:00 committed by Geert Uytterhoeven
parent ca91def749
commit a684fa4d22
1 changed files with 41 additions and 0 deletions
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41
arch/arm/boot/dts/renesas/r9a06g032.dtsi
View File

@ -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>;