On Sun, 11 Sep 2022, Lukas Wunner wrote:
> Since commit bd5305dcabbc ("tty: serial: fsl_lpuart: do software reset
> for imx7ulp and imx8qxp"), certain i.MX UARTs are reset after they've
> already been registered. Register state may thus be clobbered after
> user space has begun to open and access the UART.
>
> Avoid by performing the reset prior to registration.
>
> Fixes: bd5305dcabbc ("tty: serial: fsl_lpuart: do software reset for imx7ulp and imx8qxp")
> Signed-off-by: Lukas Wunner <lukas@xxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx # v5.15+
> Cc: Fugang Duan <fugang.duan@xxxxxxx>
> Cc: Sherry Sun <sherry.sun@xxxxxxx>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
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i.
