Messages in this thread | | | Date | Wed, 13 May 2015 13:44:50 -0700 | Subject | Re: [PATCH v3 0/2] clk: improve handling of orphan clocks | From | Kevin Hilman <> |
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On Wed, May 13, 2015 at 1:14 PM, Maxime Ripard <maxime.ripard@free-electrons.com> wrote: > On Wed, May 13, 2015 at 07:33:54AM -0700, Kevin Hilman wrote: >> Maxime Ripard <maxime.ripard@free-electrons.com> writes: >> >> > On Tue, May 12, 2015 at 03:35:50PM -0700, Stephen Boyd wrote: >> >> On 05/08/15 03:02, Maxime Ripard wrote: >> >> > On Thu, May 07, 2015 at 02:03:57PM -0700, Stephen Boyd wrote: >> >> >> On 05/07/15 08:17, Kevin Hilman wrote: >> >> >>> On Fri, May 1, 2015 at 4:40 PM, Stephen Boyd <sboyd@codeaurora.org> wrote: >> >> >>>> On 05/01/15 15:07, Heiko Stübner wrote: >> >> >>>>> Am Freitag, 1. Mai 2015, 13:52:47 schrieb Stephen Boyd: >> >> >>>>> >> >> >>>>>>> Instead I guess we could hook it less deep into clk_get_sys, like in the >> >> >>>>>>> following patch? >> >> >>>>>> It looks like it will work at least, but still I'd prefer to keep the >> >> >>>>>> orphan check contained to clk.c. How about this compile tested only patch? >> >> >>>>> I gave this a spin on my rk3288-firefly board. It still boots, the clock tree >> >> >>>>> looks the same and it also still defers nicely in the scenario I needed it >> >> >>>>> for. The implementation also looks nice - and of course much more compact than >> >> >>>>> my check in two places :-) . I don't know if you want to put this as follow-up >> >> >>>>> on top or fold it into the original orphan-check, so in any case >> >> >>>>> >> >> >>>>> Tested-by: Heiko Stuebner <heiko@sntech.de> >> >> >>>>> Reviewed-by: Heiko Stuebner <heiko@sntech.de> >> >> >>>> Thanks. I'm leaning towards tossing your patch 2/2 and replacing it with >> >> >>>> my patch and a note that it's based on an earlier patch from you. >> >> >>> It appears this has landed in linux-next in the form of 882667c1fcf1 >> >> >>> clk: prevent orphan clocks from being used. A bunch of boot failures >> >> >>> for sunxi in today's linux-next[1] were bisected down to that patch. >> >> >>> >> >> >>> I confirmed that reverting that commit on top of next/master gets >> >> >>> sunxi booting again. >> >> >>> >> >> >>> >> >> >> Thanks for the report. I've removed the two clk orphan patches from >> >> >> clk-next. Would it be possible to try with next-20150507 and >> >> >> clk_ignore_unused on the command line? >> >> > This makes it work, but it's not really an option. >> >> > >> >> >> >> Hmm.. I thought it didn't fix it for Kevin. Confused. >> > >> > I'm too, but it does fix things here. >> >> To be more precise on what I tested. I used next-20150507 and tested on >> 4 different sunxi platforms. First test was "normal" commandline, >> second was with clk_ignore_unused appended: >> >> - cubie: fail, fail >> - cubie2: fail, fail >> - bananpi: fail, pass >> - cubietruck: fail, pass >> >> So it seems to have some effect, but by itself, doesn't fix the issue. > > It's very odd, I actually tried with a cubie2 here... > > I'm booting on an initramfs and not MMC though, but I can't see how > that can be related to our issue...
I'm booting an initramfs too.
Kevin
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