[lkml]   [2011]   [Aug]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] i2c/tegra: I2C driver uses the suspend_noirq/resume_noirq
On Wed, Aug 24, 2011 at 2:28 PM, Stephen Warren <> wrote:
> Mark Brown wrote at Thursday, August 11, 2011 9:15 PM:
>> On Thu, Aug 11, 2011 at 07:59:27PM -0700, Colin Cross wrote:
>> > On Thu, Aug 11, 2011 at 5:45 PM, Mark Brown
>> > > For example with ASoC we'd sort all the components before the ASoC card
>> > > without regard for their bus dependencies or any other dependencies they
>> > > have (eg, their regulators). Since the ASoC card is a platform device
>> > > it's likely to have registered early with no regard for where the buses
>> > > the card needs are registered. I'd expect there's a reasonable chance
>> > > it'll actually make things worse in the short term.
>> > You can't just move everything after the card, you have to move
>> > everything after the last device that was probed, and it only works if
>> > nothing depends on any of the devices that are moved.
>> Sorry, I said that the wrong way round due to trying to reply quickly -
>> the card would be the thing that moves since that's the thing that
>> actually does the suspend but we've *no* idea which device we need to
>> move it after.  Since all the function does is a direct move after or
>> before a single device all we can do is pick one and pray that it's the
>> right device.
> Colin,
> This thread seems to have died down; how should we make progress?
> It sounds like the suspend_irq solution is the current de-facto standard;
> not optimal, but all we really have right now and already in use. I could
> certainly see avoiding this solution if it was the first time it was
> employed, but re-using it seems reasonable to me?
> Alternatively, are you attending either Linux Plumbers Conference or the
> Kernel Summit? Mark implied this topic might well come up for discussion
> there. Unfortunately, I won't be able to make LPC due to a conflict.
I don't think I'll be able to make it.

> (and you'd mentioned having the subsystem maintainers weigh in on this;
> which sub-system; IRQ, power, I2C, ...?)

If Ben says its OK, its fine with me. Or maybe Arnd wants to weigh in?
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2011-08-25 00:39    [W:0.068 / U:0.860 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site