linux-kernel - [PATCH v2 16/18] arm64: dts: mediatek: mt7988: add i2c-mux on bpi-r4

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Message-ID: <20241202122602.30734-17-linux@fw-web.de>
Date: Mon,  2 Dec 2024 13:25:57 +0100
From: Frank Wunderlich <linux@...web.de>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: Frank Wunderlich <frank-w@...lic-files.de>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org
Subject: [PATCH v2 16/18] arm64: dts: mediatek: mt7988: add i2c-mux on bpi-r4

From: Frank Wunderlich <frank-w@...lic-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@...lic-files.de>
---
---
 .../dts/mediatek/mt7988a-bananapi-bpi-r4.dts  | 40 +++++++++++++++++++
 1 file changed, 40 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 550c373b3d70..9ceefc990000 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 +2,7 @@
 
 /dts-v1/;
 
+#include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/regulator/richtek,rt5190a-regulator.h>
 
 #include "mt7988a.dtsi"
@@ -138,6 +139,45 @@ &i2c2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c2_1_pins>;
 	status = "okay";
+
+	pca9545: i2c-mux@70 {
+		reg = <0x70>;
+		compatible = "nxp,pca9545";
+		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