https://community.nxp.com/t5/i-MX-Processors/device-tree-and-drivers-changes-for-custom-board-based-on/m-p/1389743#M184753 <P>You should remove the&nbsp;<SPAN>pca9557 node and related pinmux in dts , and then remove the&nbsp;pca9557 config in defconfig file.</SPAN></P> Tue, 21 Dec 2021 02:10:23 GMT Zhiming_Liu 2021-12-21T02:10:23Z https://community.nxp.com/t5/i-MX-Processors/device-tree-and-drivers-changes-for-custom-board-based-on/m-p/1389575#M184742 <P>We are having custom board based on&nbsp;imx8qxpmek board. But we are not having IO expander&nbsp;<SPAN>pca9557.</SPAN></P><P>What are changes to be done in device tree and device drivers ?</P> Mon, 20 Dec 2021 14:42:49 GMT https://community.nxp.com/t5/i-MX-Processors/device-tree-and-drivers-changes-for-custom-board-based-on/m-p/1389575#M184742 krunaldhonde 2021-12-20T14:42:49Z https://community.nxp.com/t5/i-MX-Processors/device-tree-and-drivers-changes-for-custom-board-based-on/m-p/1389743#M184753 <P>You should remove the&nbsp;<SPAN>pca9557 node and related pinmux in dts , and then remove the&nbsp;pca9557 config in defconfig file.</SPAN></P> Tue, 21 Dec 2021 02:10:23 GMT https://community.nxp.com/t5/i-MX-Processors/device-tree-and-drivers-changes-for-custom-board-based-on/m-p/1389743#M184753 Zhiming_Liu 2021-12-21T02:10:23Z