Re: [PATCH] ACPI: evaluate _PS3 when entering D3 Cold

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

 



On Sun, Apr 01, 2012 at 02:28:57PM +0800, Lin Ming wrote:
> > 
> > There is no D3 hot support for this device(from the firmware's
> > perspective), either it is at D0(via _PS0), or it will be at D3 cold(via
> > _PS3).
> 
> But this is the generic code. We can't only consider some special
> device.
Agree.

The code change I've made only affects D3 cold path, existing code path
to set device power state to D0-D3hot is not affected.

And for D3 cold path, I don't think evaluating _PS3 should do any harm
to the device, isn't it the case?

> 
> Maybe we need some flag to tell which D3 state _PS3 is used for.
Do you mean the ACPI spec needs to be updated to reflect which D3
state the device will be at once its _PS3 is evaluated?

-Aaron

--
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux IBM ACPI]     [Linux Power Management]     [Linux Kernel]     [Linux Laptop]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux