[PATCH 6/7] arm64: allwinner: h6: add R_I2C controller

[Icenowy Zheng <icenowy@aosc.io>]

Allwinner H6 SoC has a R_I2C controller wired to the PL0/PL1 pins, which
are used in the reference design to connect AXP805 PMIC.

Add support for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
---
 arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index b0b342c8c189..37c2e11fca2e 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -5,7 +5,9 @@
 
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/clock/sun50i-h6-ccu.h>
+#include <dt-bindings/clock/sun50i-h6-r-ccu.h>
 #include <dt-bindings/reset/sun50i-h6-ccu.h>
+#include <dt-bindings/reset/sun50i-h6-r-ccu.h>
 
 / {
 	interrupt-parent = <&gic>;
@@ -204,6 +206,24 @@
 			#gpio-cells = <3>;
 			interrupt-controller;
 			#interrupt-cells = <3>;
+
+			r_i2c_pins: r-i2c {
+				pins = "PL0", "PL1";
+				function = "s_i2c";
+			};
+		};
+
+		r_i2c: i2c@7081400 {
+			compatible = "allwinner,sun6i-a31-i2c";
+			reg = <0x07081400 0x400>;
+			interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&r_ccu CLK_R_APB2_I2C>;
+			resets = <&r_ccu RST_R_APB2_I2C>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&r_i2c_pins>;
+			status = "disabled";
+			#address-cells = <1>;
+			#size-cells = <0>;
 		};
 	};
 };
-- 
2.15.1