ARM: dts: bcm2711: Add the BSC interrupt controller

raspberrypi inclusion
category: feature
bugzilla: 50432

--------------------------------

The BSC controllers used for the HDMI DDC have an interrupt controller
shared between both instances. Let's add it to avoid polling.
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NMaxime Ripard <maxime@cerno.tech>
Signed-off-by: NFang Yafen <yafen@iscas.ac.cn>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/arm/boot/dts/bcm2711.dtsi

@@ -308,6 +308,14 @@
 			#reset-cells = <1>;
 		};
 
+		bsc_intr: interrupt-controller@7ef00040 {
+			compatible = "brcm,bcm2711-l2-intc", "brcm,l2-intc";
+			reg = <0x7ef00040 0x30>;
+			interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+		};
+
 		hdmi0: hdmi@7ef00700 {
 			compatible = "brcm,bcm2711-hdmi0";
 			reg = <0x7ef00700 0x300>,
@@ -348,6 +356,8 @@
 			reg = <0x7ef04500 0x100>, <0x7ef00b00 0x300>;
 			reg-names = "bsc", "auto-i2c";
 			clock-frequency = <97500>;
+			interrupt-parent = <&bsc_intr>;
+			interrupts = <0>;
 			status = "disabled";
 		};
 
@@ -391,6 +401,8 @@
 			reg = <0x7ef09500 0x100>, <0x7ef05b00 0x300>;
 			reg-names = "bsc", "auto-i2c";
 			clock-frequency = <97500>;
+			interrupt-parent = <&bsc_intr>;
+			interrupts = <1>;
 			status = "disabled";
 		};
 	};