linux-kernel - [PATCH 6/6] arm64: dts: ti: k3-j721s2-som-p0: Enable wakeup

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Date:   Fri, 2 Jun 2023 10:35:54 -0500
From:   Nishanth Menon <nm@...com>
To:     Conor Dooley <conor+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Tero Kristo <kristo@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, Nishanth Menon <nm@...com>,
        Udit Kumar <u-kumar1@...com>, Nitin Yadav <n-yadav@...com>,
        Neha Malcom Francis <n-francis@...com>,
        Sinthu Raja <sinthu.raja@...com>
Subject: [PATCH 6/6] arm64: dts: ti: k3-j721s2-som-p0: Enable wakeup_i2c0 and eeprom

Enable wakeup_i2c and use un-used pinmux. While at it, describe the
board detection eeprom present on the board.

Signed-off-by: Nishanth Menon <nm@...com>
---
New patch

 arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi | 22 ++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi
index 6930efff8a5a..ccd69640a5c0 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi
@@ -39,6 +39,15 @@ transceiver0: can-phy0 {
 	};
 };
 
+&wkup_pmx2 {
+	wkup_i2c0_pins_default: wkup-i2c0-pins-default {
+		pinctrl-single,pins = <
+			J721S2_WKUP_IOPAD(0x98, PIN_INPUT, 0) /* (H24) WKUP_I2C0_SCL */
+			J721S2_WKUP_IOPAD(0x9c, PIN_INPUT, 0) /* (H27) WKUP_I2C0_SDA */
+		>;
+	};
+};
+
 &main_pmx0 {
 	main_i2c0_pins_default: main-i2c0-pins-default {
 		pinctrl-single,pins = <
@@ -55,6 +64,19 @@ J721S2_IOPAD(0x024, PIN_OUTPUT, 0) /* (Y28) MCAN16_TX */
 	};
 };
 
+&wkup_i2c0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&wkup_i2c0_pins_default>;
+	clock-frequency = <400000>;
+
+	eeprom@50 {
+		/* CAV24C256WE-GT3 */
+		compatible = "atmel,24c256";
+		reg = <0x50>;
+	};
+};
+
 &main_i2c0 {
 	status = "okay";
 	pinctrl-names = "default";
-- 
2.40.0