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Can I mix the pins of uart1 and uart3 to use them in the same pinctrl later?

Question asked by CESAR MIGUEL on Mar 5, 2020
Latest reply on Mar 6, 2020 by igorpadykov

I am working with an imx8mm-lpdrr4-evk board and I want to know if it is possible to do this for example.

 

pinctrl_uart_mix: uartMgrp {
fsl,pins = <
MX8MM_IOMUXC_UART1_RXD_UART1_DCE_RX 0x140
MX8MM_IOMUXC_UART1_TXD_UART1_DCE_TX 0x140
MX8MM_IOMUXC_ECSPI1_SS0_UART3_DCE_RTS_B 0x140
MX8MM_IOMUXC_ECSPI1_MISO_UART3_DCE_CTS_B 0x140
}

 

To use these lines later in a driver with flow control of uart1 but using the lines of uart3

 

Can you tell me if it is possible and why or not and why?

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