Re: [Update][PATCH] USB / PM: Drop CONFIG_PM_RUNTIME from the USB core

From: Alan Stern
Date: Sat Nov 29 2014 - 12:34:42 EST


On Sat, 29 Nov 2014, Rafael J. Wysocki wrote:

> > There are also one or two places in Documentation/usb that mention
> > CONFIG_PM_RUNTIME.
>
> I found this in Documentation/usb/power-management.txt:
>
> "Note: Dynamic PM support for USB is present only if the kernel was
> built with CONFIG_USB_SUSPEND enabled (which depends on
> CONFIG_PM_RUNTIME). System PM support is present only if the kernel
> was built with CONFIG_SUSPEND or CONFIG_HIBERNATION enabled.
>
> (Starting with the 3.10 kernel release, dynamic PM support for USB is
> present whenever the kernel was built with CONFIG_PM_RUNTIME enabled.
> The CONFIG_USB_SUSPEND option has been eliminated.)"
>
> but I'm quite unsure how to change it. What about:
>
> "System PM support is present only if the kernel was built with CONFIG_SUSPEND
> or CONFIG_HIBERNATION enabled. Dynamic PM support for USB is present whenever
> the kernel was built with CONFIG_PM enabled.
>
> [Historically, dynamic PM support for USB was present only if the kernel
> had been built with CONFIG_USB_SUSPEND enabled (which depended on
> CONFIG_PM_RUNTIME). Starting with the 3.10 kernel release, dynamic PM support
> for USB was present whenever the kernel was built with CONFIG_PM_RUNTIME
> enabled. The CONFIG_USB_SUSPEND option had been eliminated.]

That sounds fine. Thanks.

Alan Stern

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