Messages in this thread | | | Date | Thu, 13 Feb 2014 15:12:49 +0100 | Subject | Re: [PATCH 14/17] i2c: nomadik: Fixup deployment of runtime PM | From | Ulf Hansson <> |
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On 10 February 2014 11:14, Ulf Hansson <ulf.hansson@linaro.org> wrote: > On 5 February 2014 15:34, Linus Walleij <linus.walleij@linaro.org> wrote: >> On Tue, Feb 4, 2014 at 4:58 PM, Ulf Hansson <ulf.hansson@linaro.org> wrote: >> >>> Since the device is active while a successful probe has been completed, >>> the reference counting for the clock will be screwed up and never reach >>> zero. >>> >>> The issue is resolved by implementing runtime PM callbacks and let them >>> handle the resources accordingly, including the clock. >>> >>> Cc: Alessandro Rubini <rubini@unipv.it> >>> Cc: Linus Walleij <linus.walleij@linaro.org> >>> Cc: Wolfram Sang <wsa@the-dreams.de> >>> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> >> >> Hm do I read it right as patch 13 breaks runtime PM by leaving >> the device active after probe() and this patch >> 14 fixes it again? Maybe these two patches should be squashed >> then.
In v2 I have now squashed patch 13 into this patch 14.
That means patch13 shall be dropped from this patchset.
Kind regards Uffe
> > You are right; but the driver will still be working, you just don't > get the benefit from inactivating the device at request inactivity - > as you pointed out. > > The reason for why I wanted to do this as separate steps was to make > it easier for reviewing, otherwise the patch(es) would have been quite > big and messy. I am for sure open to adopt to your proposal, but just > wanted to give you some more background, before I go ahead and send a > v2. > > Kind regards > Ulf Hansson > >> >> Yours, >> Linus Walleij
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