From: Icenowy Zheng <icenowy@aosc.io>
Date: Thu, 3 May 2018 18:38:46 +0000 (+0800)
Subject: arm64: allwinner: h6: add R_I2C controller
X-Git-Tag: rel_imx_4.19.35_1.1.0~9906^2~20^2~1
X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=e9a233665464e6cd790d18ea8c7345b4f190321a;p=linux.git

arm64: allwinner: h6: add R_I2C controller

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>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
---

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index 2334ba05b12e..c72da8cd9ef5 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -204,6 +204,24 @@
 			#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 8>;
+			resets = <&r_ccu 4>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&r_i2c_pins>;
+			status = "disabled";
+			#address-cells = <1>;
+			#size-cells = <0>;
 		};
 	};
 };