arm64: dts: imx8ulp-evk: enable lpi2c7 bus

Enable lpi2c7 bus, and enable i2c IO expander.

Reviewed-by: Clark Wang <xiaoning.wang@nxp.com>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
index 1314383caf766c58a1c7dc62bcd44332f0cf4d84..69dd8e31027c8a2069be761a22f0b4eef1d7748f 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
@@ -118,6 +118,23 @@
        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>;
@@ -200,6 +217,13 @@
                >;
        };
 
+       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