Re: [linux-pm] [PATCH] Custom power states for non-ACPI systems

[Pavel Machek]

Hi!

> Advertise custom sets of system power states for non-ACPI systems.
> Currently, /sys/power/state shows and accepts a static set of choices
> that are not necessarily meaningful on all platforms (for example,
> suspend-to-disk is an option even on diskless embedded systems, and the
> meaning of standby vs. suspend-to-mem is not well-defined on
> non-ACPI-systems).  This patch allows the platform to register power
> states with meaningful names that correspond to the platform's
> conventions (for example, "big sleep" and "deep sleep" on TI OMAP), and
> only those states that make sense for the platform.

Maybe this is a bit overdone?

Of course you can have suspend-to-disk on most embedded systems; CF
flash card looks just like disk, and you should be able to suspend to
it.

If OMAP has "big sleep" and "deep sleep", why not simply map them to
"standby" and "suspend-to-ram"?

[OTOH patch is not that long; but strings in /sys filesystem are not
for human consumption anyway.]
								Pavel
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