linux-kernel - [PATCH v4 8/8] arm64: dts: realtek: rtd139x: Add irq muxes and UART interrupts

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Message-Id: <20191119021917.15917-9-afaerber@suse.de>
Date:   Tue, 19 Nov 2019 03:19:17 +0100
From:   Andreas Färber <afaerber@...e.de>
To:     linux-realtek-soc@...ts.infradead.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Andreas Färber <afaerber@...e.de>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, devicetree@...r.kernel.org
Subject: [PATCH v4 8/8] arm64: dts: realtek: rtd139x: Add irq muxes and UART interrupts

Add iso and misc IRQ mux DT nodes for Realtek RTD1395 SoC.

Update the UART DT nodes with interrupts from these muxes,
so that UART0 can be used without earlycon.

Signed-off-by: Andreas Färber <afaerber@...e.de>
---
 v4: New
 
 arch/arm64/boot/dts/realtek/rtd139x.dtsi | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm64/boot/dts/realtek/rtd139x.dtsi b/arch/arm64/boot/dts/realtek/rtd139x.dtsi
index 706da12f9ea3..f53cb8a5083b 100644
--- a/arch/arm64/boot/dts/realtek/rtd139x.dtsi
+++ b/arch/arm64/boot/dts/realtek/rtd139x.dtsi
@@ -84,6 +84,14 @@
 				#reset-cells = <1>;
 			};
 
+			iso_irq_mux: interrupt-controller@...0 {
+				compatible = "realtek,rtd1395-iso-irq-mux";
+				reg = <0x7000 0x100>;
+				interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-controller;
+				#interrupt-cells = <1>;
+			};
+
 			iso_reset: reset-controller@...8 {
 				compatible = "snps,dw-low-reset";
 				reg = <0x7088 0x4>;
@@ -103,6 +111,8 @@
 				reg-io-width = <4>;
 				clock-frequency = <27000000>;
 				resets = <&iso_reset RTD1295_ISO_RSTN_UR0>;
+				interrupt-parent = <&iso_irq_mux>;
+				interrupts = <2>;
 				status = "disabled";
 			};
 
@@ -111,6 +121,14 @@
 				reg = <0x1a200 0x8>;
 			};
 
+			misc_irq_mux: interrupt-controller@...00 {
+				compatible = "realtek,rtd1395-misc-irq-mux";
+				reg = <0x1b000 0x100>;
+				interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-controller;
+				#interrupt-cells = <1>;
+			};
+
 			uart1: serial@...00 {
 				compatible = "snps,dw-apb-uart";
 				reg = <0x1b200 0x100>;
@@ -118,6 +136,8 @@
 				reg-io-width = <4>;
 				clock-frequency = <432000000>;
 				resets = <&reset2 RTD1295_RSTN_UR1>;
+				interrupt-parent = <&misc_irq_mux>;
+				interrupts = <3>;
 				status = "disabled";
 			};
 
@@ -128,6 +148,8 @@
 				reg-io-width = <4>;
 				clock-frequency = <432000000>;
 				resets = <&reset2 RTD1295_RSTN_UR2>;
+				interrupt-parent = <&misc_irq_mux>;
+				interrupts = <8>;
 				status = "disabled";
 			};
 		};
-- 
2.16.4