Re: [PATCH] mmc: core: Ensure clocks are always enabled before host interaction

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

 



On Mon, Jan 30, 2012 at 1:48 PM, Per Forlin <per.lkml@xxxxxxxxx> wrote:

> It makes sense to ensure clocking in pre-req() and post-req()
> implemented by this patch.
> My only concern from a throughput point of view is if the clocking
> adds an overhead, but AFAIK the clocking doesn't add an overhead (that
> would increase the prepare time).

Shouldn't be a concern here since there is already a hysteresis
window across these calls, so the clock never get disabled on
back-to-back transfers AFAICT.

> Acked-by: Per Forlin <per.forlin@xxxxxxxxxxxxxx>

Thanks,
Linus Walleij
--
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