Re: [linux-pm] [RFC,PATCHv3 0/3] sdhci runtime_pm implementation

[Pierre Tardy]

On Tue, Mar 1, 2011 at 8:33 PM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:
> On Tue, 1 Mar 2011, Pierre Tardy wrote:
>
>> Please find sdhci runtime_pm implementation.
>>
>> It uses clock gating fw as a tip to know when our chip is idle.
>> It implements wake up from card insertion/removal.
>>
>> This is RFC, please dont merge yet. I really would like to have deep review
>> from PCI linux-pm guys.
>>
>> Opens are:
>>
>> 1/ Not sure if the pci configs in the driver in rpm_suspend/resume flow
>>  are not duplicate from what the core is doing.
>
> There may be one or two small errors.
>
>> 2/ Wakeup from D3hot: I cannot find any driver that is implementing it in current upstream,
>
> Other drivers do it, but they use PCI PME# instead of interrupts.
Could you please elaborate?
My understanding is that PCI PME will generate MSI, which translate in
interrupt.

Thanks
Pierre
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/