Re: [PATCH] serial/core: Initialize the console pm state

From: Greg KH
Date: Fri Oct 03 2014 - 00:36:15 EST


On Wed, Oct 01, 2014 at 10:27:20AM -0700, Kevin Hilman wrote:
> On Sun, Sep 21, 2014 at 11:30 PM, Sudhir Sreedharan
> <ssreedharan@xxxxxxxxxx> wrote:
> > For console devices having UART_CAP_SLEEP capability, the uart_pm_state has
> > to be initialized to UART_PM_STATE_ON. Otherwise the LCR regiser values
> > are reinitialized when uart_change_pm is called from uart_configure_port.
> >
> > Signed-off-by: Sudhir Sreedharan <ssreedharan@xxxxxxxxxx>
>
> Multiple boot failures on ARM[1] were bisected down to this patch.
>
> How was this patch tested, and on which platforms?
>
> Also, the changelog states that this should be done only for
> UART_CAP_SLEEP, but the patch does it for every UART.
>
> Greg, I suggest this patch be dropped from tty-next until it has been
> better described and tested.

Now reverted, thanks for letting me know.

greg k-h
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