linux-kernel - [PATCH 0/4] Add ICU support for RZ/T2H and RZ/N2H

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Message-ID: <20251121111423.1379395-1-cosmin-gabriel.tanislav.xa@renesas.com>
Date: Fri, 21 Nov 2025 13:14:19 +0200
From: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>
To: Thomas Gleixner <tglx@...utronix.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>,
	Cosmin Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>
Cc: linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org
Subject: [PATCH 0/4] Add ICU support for RZ/T2H and RZ/N2H

The Renesas RZ/T2H and RZ/N2H SoCs have an Interrupt Control Unit (ICU)
that supports interrupts from external pins IRQ0 to IRQ15, DREQ and SEI.

Cosmin Tanislav (4):
  dt-bindings: interrupt-controller: document RZ/{T2H,N2H} ICU
  irqchip: add RZ/{T2H,N2H} Interrupt Controller (ICU) driver
  arm64: dts: renesas: r9a09g077: add ICU support
  arm64: dts: renesas: r9a09g087: add ICU support

 .../renesas,r9a09g077-icu.yaml                | 236 ++++++++++++++
 arch/arm64/boot/dts/renesas/r9a09g077.dtsi    |  73 +++++
 arch/arm64/boot/dts/renesas/r9a09g087.dtsi    |  73 +++++
 drivers/irqchip/Kconfig                       |   8 +
 drivers/irqchip/Makefile                      |   1 +
 drivers/irqchip/irq-renesas-rzt2h.c           | 288 ++++++++++++++++++
 drivers/soc/renesas/Kconfig                   |   1 +
 include/linux/irqchip/irq-renesas-rzt2h.h     |  23 ++
 8 files changed, 703 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/renesas,r9a09g077-icu.yaml
 create mode 100644 drivers/irqchip/irq-renesas-rzt2h.c
 create mode 100644 include/linux/irqchip/irq-renesas-rzt2h.h

-- 
2.52.0