[PATCH v3 18/22] arm64: dts: mediatek: mt7988a-bpi-r4: Add PCA9545 I2C Mux

[Frank Wunderlich <linux@fw-web.de>]

From: Frank Wunderlich <frank-w@public-files.de>

Bananapi R4 uses an i2c multiplexer for SFP slots, rtc and eeprom.
Add its node to the right i2c controller.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
changes:
v3:
- move reg after compatible
- change commit title
---
 .../dts/mediatek/mt7988a-bananapi-bpi-r4.dts  | 41 +++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dts b/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dts
index 3d165f7b29dc..0dc1fd9265c6 100644
--- a/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dts
@@ -2,6 +2,8 @@
 
 /dts-v1/;
 
+#include <dt-bindings/gpio/gpio.h>
+
 #include "mt7988a.dtsi"
 
 / {
@@ -70,6 +72,45 @@ &i2c2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c2_1_pins>;
 	status = "okay";
+
+	pca9545: i2c-mux@70 {
+		compatible = "nxp,pca9545";
+		reg = <0x70>;
+		reset-gpios = <&pio 5 GPIO_ACTIVE_LOW>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+
+			pcf8563: rtc@51 {
+				compatible = "nxp,pcf8563";
+				reg = <0x51>;
+				#clock-cells = <0>;
+			};
+
+			eeprom@57 {
+				compatible = "atmel,24c02";
+				reg = <0x57>;
+				size = <256>;
+			};
+
+		};
+
+		i2c_sfp1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+
+		i2c_sfp2: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+	};
 };
 
 &pio {
-- 
2.43.0