https://community.nxp.com/t5/i-MX-Processors/IMX8QM-Serial-ports-registered-but-dev-ttyLP1-is-missing/m-p/1445092#M189431 <P>Hi,</P><P>&nbsp;</P><P>I had the issue I unable to find the device entry for LPUAR1 - <STRONG>ttyLP1</STRONG>.</P><P>Here is the debug message,</P><PRE>[ 1.732363] 5a070000.serial: ttyLP1 at MMIO 0x5a070010 (irq = 65, base_baud = 5000000) is a FSL_LPUART<BR />[ 1.741833] serial serial0: tty port ttyLP1 registered</PRE><P>&nbsp;</P><P>&nbsp;</P> Mon, 18 Apr 2022 11:40:49 GMT vinothkumars 2022-04-18T11:40:49Z https://community.nxp.com/t5/i-MX-Processors/IMX8QM-Serial-ports-registered-but-dev-ttyLP1-is-missing/m-p/1445092#M189431 <P>Hi,</P><P>&nbsp;</P><P>I had the issue I unable to find the device entry for LPUAR1 - <STRONG>ttyLP1</STRONG>.</P><P>Here is the debug message,</P><PRE>[ 1.732363] 5a070000.serial: ttyLP1 at MMIO 0x5a070010 (irq = 65, base_baud = 5000000) is a FSL_LPUART<BR />[ 1.741833] serial serial0: tty port ttyLP1 registered</PRE><P>&nbsp;</P><P>&nbsp;</P> Mon, 18 Apr 2022 11:40:49 GMT https://community.nxp.com/t5/i-MX-Processors/IMX8QM-Serial-ports-registered-but-dev-ttyLP1-is-missing/m-p/1445092#M189431 vinothkumars 2022-04-18T11:40:49Z https://community.nxp.com/t5/i-MX-Processors/IMX8QM-Serial-ports-registered-but-dev-ttyLP1-is-missing/m-p/1446969#M189544 <P>Hi All,</P><P>&nbsp;</P><P>finally, I found the fix. This uart interface is allocated to chipset by default in dts.&nbsp;</P> Thu, 21 Apr 2022 06:27:04 GMT https://community.nxp.com/t5/i-MX-Processors/IMX8QM-Serial-ports-registered-but-dev-ttyLP1-is-missing/m-p/1446969#M189544 vinothkumars 2022-04-21T06:27:04Z