linux-kernel - [PATCH 06/10] arm64: dts: ti: k3-am642-evm: Enable main

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Date:   Fri, 14 Apr 2023 02:33:24 -0500
From:   Nishanth Menon <nm@...com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Tero Kristo <kristo@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>,
        Nishanth Menon <nm@...com>,
        Neha Malcom Francis <n-francis@...com>,
        Nikhil M Jain <n-jain1@...com>, Tom Rini <trini@...sulko.com>
Subject: [PATCH 06/10] arm64: dts: ti: k3-am642-evm: Enable main_i2c0 and eeprom

Enable AT24CM01 on the base board using the corresponding compatible.

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

Note:
checkpatch does a simple pattern search and fails to find a match
#47: FILE: arch/arm64/boot/dts/ti/k3-am642-evm.dts:353:
		compatible = "atmel,24c1024";

But, Documentation/devicetree/bindings/eeprom/at24.yaml
              - items:
                  pattern: cs1024$
Cleanly covers the same and dtbs_check looks clean.

 arch/arm64/boot/dts/ti/k3-am642-evm.dts | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index 39feea78a084..6456cc6d739b 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -233,6 +233,13 @@ AM64X_IOPAD(0x0218, PIN_INPUT, 0) /* (A14) SPI0_D1 */
 		>;
 	};
 
+	main_i2c0_pins_default: main-i2c0-pins-default {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x0260, PIN_INPUT_PULLUP, 0) /* (A18) I2C0_SCL */
+			AM64X_IOPAD(0x0264, PIN_INPUT_PULLUP, 0) /* (B18) I2C0_SDA */
+		>;
+	};
+
 	main_i2c1_pins_default: main-i2c1-pins-default {
 		pinctrl-single,pins = <
 			AM64X_IOPAD(0x0268, PIN_INPUT_PULLUP, 0) /* (C18) I2C1_SCL */
@@ -335,6 +342,19 @@ &main_uart1 {
 	status = "reserved";
 };
 
+&main_i2c0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_i2c0_pins_default>;
+	clock-frequency = <400000>;
+
+	eeprom@50 {
+		/* AT24CM01 */
+		compatible = "atmel,24c1024";
+		reg = <0x50>;
+	};
+};
+
 &main_i2c1 {
 	status = "okay";
 	pinctrl-names = "default";
-- 
2.40.0