[PATCH 2/2] serial: 8250_omap: mark the serial as on the wakeup path if no_console_suspend

[Ulf Hansson]

On Wed, 9 Oct 2024 at 14:17, Thomas Richard <thomas.richard at bootlin.com> wrote:
>
> On 10/9/24 12:50, Ulf Hansson wrote:
> > On Tue, 8 Oct 2024 at 11:34, Thomas Richard <thomas.richard at bootlin.com> wrote:
> >>
> >> If the console suspend is disabled, mark the serial as on the wakeup path
> >> to keep its PM domain powered on.
> >>
> >> Suggested-by: Théo Lebrun <theo.lebrun at bootlin.com>
> >> Signed-off-by: Thomas Richard <thomas.richard at bootlin.com>
> >> ---
> >>  drivers/tty/serial/8250/8250_omap.c | 8 ++++++--
> >>  1 file changed, 6 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
> >> index 88b58f44e4e9..6764fe2f9cad 100644
> >> --- a/drivers/tty/serial/8250/8250_omap.c
> >> +++ b/drivers/tty/serial/8250/8250_omap.c
> >> @@ -1660,8 +1660,12 @@ static int omap8250_suspend(struct device *dev)
> >>         if (!device_may_wakeup(dev))
> >>                 priv->wer = 0;
> >>         serial_out(up, UART_OMAP_WER, priv->wer);
> >> -       if (uart_console(&up->port) && console_suspend_enabled)
> >> -               err = pm_runtime_force_suspend(dev);
> >> +       if (uart_console(&up->port)) {
> >> +               if (console_suspend_enabled)
> >> +                       err = pm_runtime_force_suspend(dev);
> >> +               else
> >> +                       device_set_wakeup_path(dev);
> >> +       }
> >
> > Isn't this already managed by the serial core? See commit a47cf07f60dc
> > ("serial: core: Call device_set_awake_path() for console port")
>
> Yes you're right.
> So this patch is useless.

So patch 1/2 is all you need to get things working?

Kind regards
Uffe