From: Wolfram Sang <wsa+renesas@sang-engineering.com>
Date: Wed, 20 Nov 2024 08:49:59 +0000 (+0100)
Subject: arm64: dts: renesas: rzg3s-smarc: Enable I2C1 and connected power monitor
X-Git-Tag: v6.14-rc1~103^2~18^2~35
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=a62727cf33e49634d03362800b2edc43538f1913;p=linux-block.git

arm64: dts: renesas: rzg3s-smarc: Enable I2C1 and connected power monitor

Enable I2C1 for the carrier board and the connected power monitor
ISL28022. Limit the bus speed to the maximum the power monitor supports.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Tested-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://lore.kernel.org/20241120085345.24638-2-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---

diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
index 33b9873b225a..aaf7f9c7bdf9 100644
--- a/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi
@@ -75,6 +75,19 @@
 	clock-frequency = <1000000>;
 };
 
+&i2c1 {
+	status = "okay";
+
+	clock-frequency = <400000>;
+
+	power-monitor@44 {
+		compatible = "renesas,isl28022";
+		reg = <0x44>;
+		shunt-resistor-micro-ohms = <8000>;
+		renesas,average-samples = <32>;
+	};
+};
+
 &pinctrl {
 	key-1-gpio-hog {
 		gpio-hog;