Messages in this thread | | | Date | Thu, 25 Mar 2010 09:28:02 +0000 | From | Mark Brown <> | Subject | Re: [PATCH] i2c: Fix bus-level power management callbacks |
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On Thu, Mar 25, 2010 at 09:57:20AM +0100, Jean Delvare wrote:
> Mark, you contributed the initial runtime PM support for the i2c > subsystem, I thought you would have comments on Rafael's > reimplementation?
Yeah, see below...
> > drivers/i2c/i2c-core.c | 168 ++++++++++++++++++++++++++------------------- > > include/linux/pm_runtime.h | 7 +
> I am a little surprised to see changes to a generic header file here, > how is the i2c subsystem so special that we have needs other subsystems > did not?
Very few subsystems actually support runtime PM thus far - I think it's more the case that I2C is an early user than anything else.
> Apart from the above, the code looks sane to me, but then again I don't > know a thing about power management. I'll keep this patch in my i2c > tree, scheduled for merge in 2.6.35. If there are any updates, please > send them over, either as a new patch or as incremental changes which I > will merge myself.
I'm in a similar position - the code looks fine except I'm not 100% sure I follow all the possible ifdefs and I've never actually used hibernate (s2disk isn't supported on ARM) but for what it's worth:
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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