linux-kernel - [PATCH 10/10] arm64: dts: imx8ulp-evk: enable lpi2c7 bus

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Date:   Sun, 25 Jun 2023 20:42:38 +0800
From:   "Peng Fan (OSS)" <peng.fan@....nxp.com>
To:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de
Cc:     kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Haibo Chen <haibo.chen@....com>,
        Clark Wang <xiaoning.wang@....com>, Peng Fan <peng.fan@....com>
Subject: [PATCH 10/10] arm64: dts: imx8ulp-evk: enable lpi2c7 bus

From: Haibo Chen <haibo.chen@....com>

Enable lpi2c7 bus, and enable i2c IO expander.

Reviewed-by: Clark Wang <xiaoning.wang@....com>
Signed-off-by: Haibo Chen <haibo.chen@....com>
Signed-off-by: Peng Fan <peng.fan@....com>
---
 arch/arm64/boot/dts/freescale/imx8ulp-evk.dts | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
index ab7af705bbca..785108c37210 100644
--- a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
@@ -120,6 +120,23 @@ &lpuart5 {
 	status = "okay";
 };
 
+&lpi2c7 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	clock-frequency = <400000>;
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&pinctrl_lpi2c7>;
+	pinctrl-1 = <&pinctrl_lpi2c7>;
+	status = "okay";
+
+	pcal6408: gpio@21 {
+		compatible = "nxp,pcal9554b";
+		reg = <0x21>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+};
+
 &usdhc0 {
 	pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
 	pinctrl-0 = <&pinctrl_usdhc0>;
@@ -202,6 +219,13 @@ MX8ULP_PAD_PTF15__LPUART5_RX	0x3
 		>;
 	};
 
+	pinctrl_lpi2c7: lpi2c7grp {
+		fsl,pins = <
+			MX8ULP_PAD_PTE12__LPI2C7_SCL	0x20
+			MX8ULP_PAD_PTE13__LPI2C7_SDA	0x20
+		>;
+	};
+
 	pinctrl_usdhc0: usdhc0grp {
 		fsl,pins = <
 			MX8ULP_PAD_PTD1__SDHC0_CMD	0x3
-- 
2.37.1