Add LPI2C3 and the GPIO expander subnodes. Add the aliases for the rest
of LPI2C and GPIO nodes.

Signed-off-by: Elena Popa <[email protected]>
---
 arch/arm/dts/imx95-navq.dts | 46 +++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/arch/arm/dts/imx95-navq.dts b/arch/arm/dts/imx95-navq.dts
index fc36c8b567f..581d725406b 100644
--- a/arch/arm/dts/imx95-navq.dts
+++ b/arch/arm/dts/imx95-navq.dts
@@ -18,6 +18,15 @@
        compatible = "fsl,imx95-navq", "fsl,imx95";
 
        aliases {
+               gpio0 = &gpio1;
+               gpio1 = &gpio2;
+               gpio2 = &gpio3;
+               gpio3 = &gpio4;
+               gpio4 = &gpio5;
+               i2c0 = &lpi2c1;
+               i2c1 = &lpi2c2;
+               i2c2 = &lpi2c3;
+               i2c3 = &lpi2c4;
                mmc0 = &usdhc1;
                mmc1 = &usdhc2;
                serial0 = &lpuart1;
@@ -32,6 +41,13 @@
                reg = <0x0 0x80000000 0 0x80000000>;
        };
 
+       reg_3p3v: regulator-3p3v {
+               compatible = "regulator-fixed";
+               regulator-max-microvolt = <3300000>;
+               regulator-min-microvolt = <3300000>;
+               regulator-name = "+V3.3_SW";
+       };
+
        reg_usdhc2_vmmc: regulator-usdhc2 {
                compatible = "regulator-fixed";
                pinctrl-names = "default";
@@ -69,6 +85,29 @@
        dma-channels = <30>;
 };
 
+&lpi2c3 {
+       clock-frequency = <400000>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_lpi2c3>;
+       status = "okay";
+
+       i2c3_gpio_expander_21: gpio@21 {
+               compatible = "nxp,pcal6408";
+               #gpio-cells = <2>;
+               gpio-controller;
+               reg = <0x21>;
+               vcc-supply = <&reg_3p3v>;
+       };
+
+       i2c3_gpio_expander_23: gpio@23 {
+               compatible = "nxp,pcal6524";
+               #gpio-cells = <2>;
+               gpio-controller;
+               reg = <0x23>;
+               vcc-supply = <&reg_3p3v>;
+       };
+};
+
 &lpuart1 {
        /* console */
        pinctrl-names = "default";
@@ -77,6 +116,13 @@
 };
 
 &scmi_iomuxc {
+       pinctrl_lpi2c3: lpi2c3grp {
+               fsl,pins = <
+                       IMX95_PAD_GPIO_IO28__LPI2C3_SDA                         
0x40000b9e
+                       IMX95_PAD_GPIO_IO29__LPI2C3_SCL                         
0x40000b9e
+               >;
+       };
+
        pinctrl_uart1: uart1grp {
                fsl,pins = <
                        IMX95_PAD_UART1_RXD__AONMIX_TOP_LPUART1_RX              
0x31e
-- 
2.43.0

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