arm64: dts: mediatek: mt7988a-bpi-r4: Add PCA9545 I2C Mux

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>
Link: https://lore.kernel.org/r/20241217091238.16032-19-linux@fw-web.de
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

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 3d165f7b29dc5783caef6c0bec56caf67e0adea9..0dc1fd9265c668c321e4969c6db9172055fc1e94 100644 (file)
--- 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 @@
        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 {