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| author | Nate Drude <nate.d@variscite.com> | 2022-12-22 08:56:34 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-19 15:05:41 +0100 |
| commit | 885692ae3c17e6ef3962c826eea6bcfe871d8e5a (patch) | |
| tree | f02c373e399b7b7f26ab0fe268a306f9fd4317e5 /drivers/tty/serial/fsl_lpuart.c | |
| parent | 509597ebcac4d61fc012ea3ccd364581a8ca3926 (diff) | |
| download | lwn-885692ae3c17e6ef3962c826eea6bcfe871d8e5a.tar.gz lwn-885692ae3c17e6ef3962c826eea6bcfe871d8e5a.zip | |
tty: serial: fsl_lpuart: increase maximum uart_nr to eight
Some SoCs like the i.MX93 have aliases for up to eight UARTs, see:
https://github.com/torvalds/linux/blob/v6.1/arch/arm64/boot/dts/freescale/imx93.dtsi#L31-L38
Increase UART_NR from 6 to 8 to support lpuart7 and lpuart8 and avoid
initialization failures like the following:
[ 0.837146] fsl-lpuart 42690000.serial: serial6 out of range
[ 0.842814] fsl-lpuart: probe of 42690000.serial failed with error -22
Signed-off-by: Nate Drude <nate.d@variscite.com>
Reviewed-by: Sherry Sun <sherry.sun@nxp.com>
Link: https://lore.kernel.org/r/20221222145634.2217793-1-nate.d@variscite.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/fsl_lpuart.c')
| -rw-r--r-- | drivers/tty/serial/fsl_lpuart.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 63dff6184459..04fecff2fa5f 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -240,7 +240,7 @@ #define DRIVER_NAME "fsl-lpuart" #define DEV_NAME "ttyLP" -#define UART_NR 6 +#define UART_NR 8 /* IMX lpuart has four extra unused regs located at the beginning */ #define IMX_REG_OFF 0x10 |