Re: [PATCH 3/3] mmc: Checking BKOPS status prior to Suspend

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

 



On 25/01/17 11:48, Alex Lemberg wrote:
> 
> 
> On 1/24/17, 4:36 PM, "Adrian Hunter" <adrian.hunter@xxxxxxxxx> wrote:
> 
>     On 23/01/17 19:07, Alex Lemberg wrote:
>     > Hi Adrian,
>     > 
>     > I would like to add several notes on top of Uri’s answer...
>     > I agree with you, by the spec, PON Sleep_Notification should be
>     > set before calling Sleep command.
>     > As you probably remember, we have tried to implement it
>     > in the past and even submitted a patch – “[PATCH] mmc: sleep notification”
>     > https://www.mail-archive.com/linux-mmc@xxxxxxxxxxxxxxx/msg30906.html
>     > As you can see from the thread, one of the main issues in Sleep_Notification
>     > is a SLEEP_NOTIFICATION_TIME (defined in EXT_CSD [216]), which need to be
>     > considered in implementation…
>     
>     Does it?  I would tend to assume SLEEP_NOTIFICATION_TIME will be acceptable
>     during _suspend until proven otherwise.
> 
> Potentially, by the spec, the Max value of SLEEP_NOTIFICATION_TIME can be 83.88 seconds.
> Can we assume that this time is acceptable during _suspend?

Do you know of any cards that take that long?

As I wrote, I would assume it is acceptable until we know otherwise.

>     
>     > Thus, I think postponing Sleep during suspend requires a different from current
>     > AUTO_BKOPS implementation, and I suggest to handle it in separate
>     > patchset, if possible.
>     
>     Not at all sure what you mean by "postponing Sleep"?
> 
> I mean letting Sleep_Notification to be completed before Sleep.

ook.

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



[Index of Archives]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux