Re: [PATCH 0/2] serial: sh-sci: Use pm_runtime_get_sync()/put()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Ulrich,

On Fri, Apr 13, 2018 at 7:00 PM, Ulrich Hecht
<ulrich.hecht+renesas@xxxxxxxxx> wrote:
> These patches make sure that the device is up while the suspend/resume code
> is executed. Up-port from the BSP, tested not to break stuff.
>
> Hien Dang (2):
>   serial: sh-sci: Use pm_runtime_get_sync()/put() on suspend
>   serial: sh-sci: Use pm_runtime_get_sync()/put() on resume

I don't think it makes much sense to split this in two parts...

Furthermore, shouldn't this be handled by the serial core, calling
uart_change_pm()?

It looks like uart_resume_port() already changes the port's state to
enabled, while  uart_suspend_port() assumes the port is already enabled,
and disables it.

Perhaps handling is not correct for some code paths?

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
--
To unsubscribe from this list: send the line "unsubscribe linux-serial" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux PPP]     [Linux FS]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Linmodem]     [Device Mapper]     [Linux Kernel for ARM]

  Powered by Linux