Re: [PATCH] Revert "serial: fsl_lpuart: Reset prior to registration"

[Francesco Dolcini]

Hello all,

On Thu, Sep 29, 2022 at 04:53:18PM +0800, Sherry Sun wrote:
> This reverts commit 60f361722ad2ae5ee667d0b0545d40c42f754daf.
> 
> commit 60f361722ad2 ("serial: fsl_lpuart: Reset prior to registration")
> causes the lpuart console cannot work any more. Since the console is
> registered in the uart_add_one_port(), the driver cannot identify the
> console port before call uart_add_one_port(), which causes all the uart
> ports including the console port will be global reset.
> So need to revert this patch to avoid breaking the lpuart console.
> 
> Signed-off-by: Sherry Sun <sherry.sun@xxxxxxx>

What's the status/plan on this?

>From what I can tell the commit this patch is reverting introduced a
regression (that was backported to stable kernel), it should have a
Fixes tag and probably a cc:stable.

See also https://github.com/Freescale/linux-fslc/commit/a682d463667a418d3f7277dbbe06cd6347e76761

Francesco