From: Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org> To: Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org> Cc: Russell King - ARM Linux <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>, Richard Cochran <richardcochran-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Olof Johansson <olof-nZhT3qVonbNeoWH0uzbU5w@public.gmane.org>, Jon Masters <jonathan-Zp4isUonpHBD60Wz+7aTrA@public.gmane.org>, Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org" <linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Subject: Re: ACPI vs DT at runtime Date: Fri, 22 Nov 2013 11:43:32 +0000 [thread overview] Message-ID: <CAHkRjk5MstjD9JFk+co8k89i8geJBmSF6uObhGdmWSe0GJHo8g@mail.gmail.com> (raw) In-Reply-To: <20131121204704.E4487C40753-WNowdnHR2B42iJbIjFUEsiwD8/FfD2ys@public.gmane.org> On 21 November 2013 20:47, Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org> wrote: > On Thu, 21 Nov 2013 19:21:36 +0000, Russell King - ARM Linux <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org> wrote: >> On Wed, Nov 20, 2013 at 07:40:57AM +0100, Richard Cochran wrote: >> > Now, I never saw any proclamation or discussion about "DT is in flux" >> > on the arm list. If I had, I surely would have complained, and loudly. >> > AFAICT, this decision was made in rather private circles, but you talk >> > as if this was abundantly clear. *It was not.* >> >> DT has been discussed several times over this year alone, which >> included discussions about the stability of bindings. Various >> people in those threads (including myself) have put their views >> forward. >> >> My position has been that if an interface ends up being published in a >> -final kernel, then it is part of the ABI, because a -final kernel is >> an end-product. It's a final release which says "we've done the >> development, it's finished for users use." If it's not then it shouldn't >> be in a -final kernel, or if it has to be there for development purposes, >> it needs to be hidden behind a "this is in development" label. +1 >> I've said that several times in the DT discussions and I believe >> basically been ignored. Frankly, I've said my bit and I've given up >> caring. > > Umm. Not sure why you feel ignored. We're absolutely going for stability > now. What I was hoping for is a better way to enforce this by taking the dts files out of the kernel. I think that's the point where the bindings can become ABI. In the meantime we rely on contributors and reviewers making sure backwards compatibility is preserved. But I guess we'll eventually get there. -- Catalin -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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From: catalin.marinas@arm.com (Catalin Marinas) To: linux-arm-kernel@lists.infradead.org Subject: ACPI vs DT at runtime Date: Fri, 22 Nov 2013 11:43:32 +0000 [thread overview] Message-ID: <CAHkRjk5MstjD9JFk+co8k89i8geJBmSF6uObhGdmWSe0GJHo8g@mail.gmail.com> (raw) In-Reply-To: <20131121204704.E4487C40753@trevor.secretlab.ca> On 21 November 2013 20:47, Grant Likely <grant.likely@secretlab.ca> wrote: > On Thu, 21 Nov 2013 19:21:36 +0000, Russell King - ARM Linux <linux@arm.linux.org.uk> wrote: >> On Wed, Nov 20, 2013 at 07:40:57AM +0100, Richard Cochran wrote: >> > Now, I never saw any proclamation or discussion about "DT is in flux" >> > on the arm list. If I had, I surely would have complained, and loudly. >> > AFAICT, this decision was made in rather private circles, but you talk >> > as if this was abundantly clear. *It was not.* >> >> DT has been discussed several times over this year alone, which >> included discussions about the stability of bindings. Various >> people in those threads (including myself) have put their views >> forward. >> >> My position has been that if an interface ends up being published in a >> -final kernel, then it is part of the ABI, because a -final kernel is >> an end-product. It's a final release which says "we've done the >> development, it's finished for users use." If it's not then it shouldn't >> be in a -final kernel, or if it has to be there for development purposes, >> it needs to be hidden behind a "this is in development" label. +1 >> I've said that several times in the DT discussions and I believe >> basically been ignored. Frankly, I've said my bit and I've given up >> caring. > > Umm. Not sure why you feel ignored. We're absolutely going for stability > now. What I was hoping for is a better way to enforce this by taking the dts files out of the kernel. I think that's the point where the bindings can become ABI. In the meantime we rely on contributors and reviewers making sure backwards compatibility is preserved. But I guess we'll eventually get there. -- Catalin
next prev parent reply other threads:[~2013-11-22 11:43 UTC|newest] Thread overview: 186+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-11-15 1:44 ACPI vs DT at runtime Olof Johansson 2013-11-15 1:44 ` Olof Johansson 2013-11-15 9:57 ` Mark Rutland 2013-11-15 9:57 ` Mark Rutland [not found] ` <20131115175241. GB27174@quad.lixom.net> [not found] ` <20131115095717.GC1709-NuALmloUBlrZROr8t4l/smS4ubULX0JqMm0uRHvK7Nw@public.gmane.org> 2013-11-15 17:52 ` Olof Johansson 2013-11-15 17:52 ` Olof Johansson 2013-11-15 18:13 ` David Goodenough 2013-11-21 16:15 ` Grant Likely 2013-11-18 17:47 ` Jon Masters 2013-11-18 17:47 ` Jon Masters [not found] ` <20131115175241.GB27174-O5ziIzlqnXUVNXGz7ipsyg@public.gmane.org> 2013-11-15 18:08 ` Russell King - ARM Linux 2013-11-15 18:08 ` Russell King - ARM Linux [not found] ` <20131115180832.GR16735-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org> 2013-11-15 18:42 ` Olof Johansson 2013-11-15 18:42 ` Olof Johansson 2013-11-15 19:56 ` Arnd Bergmann 2013-11-15 19:56 ` Arnd Bergmann [not found] ` <201311152056.47846.arnd-r2nGTMty4D4@public.gmane.org> 2013-11-15 23:21 ` Russell King - ARM Linux 2013-11-15 23:21 ` Russell King - ARM Linux [not found] ` <20131115232109.GT16735-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org> 2013-11-18 15:05 ` Arnd Bergmann 2013-11-18 15:05 ` Arnd Bergmann [not found] ` <201311181605.37300.arnd-r2nGTMty4D4@public.gmane.org> 2013-11-18 15:19 ` Russell King - ARM Linux 2013-11-18 15:19 ` Russell King - ARM Linux 2013-11-18 15:46 ` Arnd Bergmann 2013-11-18 15:46 ` Arnd Bergmann 2013-11-21 16:10 ` Grant Likely 2013-11-21 16:10 ` Grant Likely [not found] ` <20131121161037.C528CC406A3-WNowdnHR2B42iJbIjFUEsiwD8/FfD2ys@public.gmane.org> 2013-11-21 18:26 ` Arnd Bergmann 2013-11-21 18:26 ` Arnd Bergmann 2013-11-21 19:40 ` Mark Brown 2013-11-21 19:40 ` Mark Brown [not found] ` <20131118151900.GF16735@ n2100.arm.linux.org.uk> [not found] ` <20131118151900.GF16735-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org> 2013-11-21 16:11 ` Grant Likely 2013-11-21 16:11 ` Grant Likely 2013-11-21 16:00 ` Grant Likely 2013-11-21 16:00 ` Grant Likely 2013-11-19 11:30 ` Mark Rutland 2013-11-19 11:30 ` Mark Rutland 2013-11-19 11:35 ` Mark Rutland 2013-11-19 11:35 ` Mark Rutland [not found] ` <20131119113557.GI5914-NuALmloUBlrZROr8t4l/smS4ubULX0JqMm0uRHvK7Nw@public.gmane.org> 2013-11-19 11:51 ` Leif Lindholm 2013-11-19 11:51 ` Leif Lindholm [not found] ` <20131119113015.GH5914-NuALmloUBlrZROr8t4l/smS4ubULX0JqMm0uRHvK7Nw@public.gmane.org> 2013-11-19 11:57 ` Russell King - ARM Linux 2013-11-19 11:57 ` Russell King - ARM Linux 2013-11-19 13:56 ` Stefano Stabellini 2013-11-19 13:56 ` Stefano Stabellini 2013-11-19 14:38 ` Mark Rutland 2013-11-19 14:38 ` Mark Rutland [not found] ` <20131119143840.GN5914-NuALmloUBlrZROr8t4l/smS4ubULX0JqMm0uRHvK7Nw@public.gmane.org> 2013-11-19 14:59 ` Leif Lindholm 2013-11-19 14:59 ` Leif Lindholm 2013-11-19 18:23 ` Olof Johansson 2013-11-19 18:23 ` Olof Johansson 2013-11-19 14:05 ` Arnd Bergmann 2013-11-19 14:05 ` Arnd Bergmann 2013-11-19 15:21 ` Mark Rutland 2013-11-19 15:21 ` Mark Rutland [not found] ` <20131119152157.GO5914-NuALmloUBlrZROr8t4l/smS4ubULX0JqMm0uRHvK7Nw@public.gmane.org> 2013-11-19 16:19 ` Arnd Bergmann 2013-11-19 16:19 ` Arnd Bergmann 2013-11-19 18:34 ` Olof Johansson 2013-11-19 18:34 ` Olof Johansson 2013-11-19 19:06 ` Tom Rini 2013-11-19 19:06 ` Tom Rini 2013-11-19 18:19 ` Olof Johansson 2013-11-19 18:19 ` Olof Johansson [not found] ` <20131119181959.GA20967-O5ziIzlqnXUVNXGz7ipsyg@public.gmane.org> 2013-11-21 16:37 ` Grant Likely 2013-11-21 16:37 ` Grant Likely 2013-11-21 16:29 ` Grant Likely 2013-11-21 16:29 ` Grant Likely [not found] ` <20131121170122. GB22960@srcf.ucam.org> [not found] ` <20131121170122.GB22960-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org> 2013-11-21 18:38 ` Grant Likely 2013-11-21 18:38 ` Grant Likely [not found] ` <20131121162944.F087FC406A3-WNowdnHR2B42iJbIjFUEsiwD8/FfD2ys@public.gmane.org> 2013-11-21 17:01 ` Matthew Garrett 2013-11-21 17:01 ` Matthew Garrett 2013-11-21 17:58 ` Olof Johansson 2013-11-21 17:58 ` Olof Johansson [not found] ` <20131121175822.GA9590-O5ziIzlqnXUVNXGz7ipsyg@public.gmane.org> 2013-11-21 18:19 ` Matthew Garrett 2013-11-21 18:19 ` Matthew Garrett 2013-11-21 18:33 ` Arnd Bergmann 2013-11-21 18:33 ` Arnd Bergmann 2013-11-21 18:54 ` Russell King - ARM Linux 2013-11-21 18:54 ` Russell King - ARM Linux [not found] ` <20131121185408.GX16735-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org> 2013-11-21 18:59 ` Olof Johansson 2013-11-21 18:59 ` Olof Johansson [not found] ` <CAOesGMgzUSMDy99XojipfRd5OM88UhfbCYO0aoc5m-Q8Fwnddg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2013-11-21 19:01 ` Russell King - ARM Linux 2013-11-21 19:01 ` Russell King - ARM Linux [not found] ` <20131121190126.GZ16735-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org> 2013-11-21 19:31 ` Olof Johansson 2013-11-21 19:31 ` Olof Johansson [not found] ` < CAOesGMgzUSMDy99XojipfRd5OM88UhfbCYO0aoc5m-Q8Fwnddg@mail.gmail.com> [not found] ` < 20131121190126.GZ16735@n2100.arm.linux.org.uk> [not found] ` < CAOesGMgxGq1Zmo+Dq-Rmy2F02-=12yUzB0AKn35yK2j3CacNRQ@mail.gmail.com> [not found] ` <CAOesGMgxGq1Zmo+Dq-Rmy2F02-=12yUzB0AKn35yK2j3CacNRQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2013-11-21 20:44 ` Grant Likely 2013-11-21 20:44 ` Grant Likely 2013-11-21 18:53 ` Mark Brown 2013-11-21 18:53 ` Mark Brown 2013-11-15 18:28 ` Jason Gunthorpe 2013-11-15 18:28 ` Jason Gunthorpe [not found] ` <20131115182826.GB14920-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org> 2013-11-15 18:57 ` Arnd Bergmann 2013-11-15 18:57 ` Arnd Bergmann 2013-11-20 13:49 ` Grant Likely 2013-11-20 13:49 ` Grant Likely [not found] ` <20131120134942.95DBFC4079D-WNowdnHR2B42iJbIjFUEsiwD8/FfD2ys@public.gmane.org> 2013-11-20 17:43 ` Stefano Stabellini 2013-11-20 17:43 ` Stefano Stabellini [not found] ` <alpine.DEB.2.02.1311201737410.3198-7Z66fg9igcxYtxbxJUhB2Dgeux46jI+i@public.gmane.org> 2013-11-20 17:47 ` Olof Johansson 2013-11-20 17:47 ` Olof Johansson 2013-11-18 5:19 ` Jon Masters 2013-11-18 5:26 ` Jon Masters [not found] ` <5289A4F3.5040203-Zp4isUonpHBD60Wz+7aTrA@public.gmane.org> 2013-11-18 19:25 ` Olof Johansson 2013-11-18 19:25 ` Olof Johansson [not found] ` <20131118192552.GD5886-O5ziIzlqnXUVNXGz7ipsyg@public.gmane.org> 2013-11-18 20:43 ` Jon Masters 2013-11-18 20:43 ` Jon Masters [not found] ` <528A7BFD.4020303-Zp4isUonpHBD60Wz+7aTrA@public.gmane.org> 2013-11-18 21:25 ` Olof Johansson 2013-11-18 21:25 ` Olof Johansson 2013-11-18 7:22 ` Richard Cochran 2013-11-18 13:55 ` Stefano Stabellini 2013-11-18 15:00 ` Mark Brown [not found] ` <20131118150052.GC24408-GFdadSzt00ze9xe1eoZjHA@public.gmane.org> 2013-11-18 19:13 ` Olof Johansson 2013-11-18 19:13 ` Olof Johansson [not found] ` <20131118191336.GB5886-O5ziIzlqnXUVNXGz7ipsyg@public.gmane.org> 2013-11-19 9:12 ` Richard Cochran 2013-11-19 9:12 ` Richard Cochran 2013-11-19 18:48 ` Olof Johansson 2013-11-19 18:48 ` Olof Johansson [not found] ` <20131119184827.GD20967-O5ziIzlqnXUVNXGz7ipsyg@public.gmane.org> 2013-11-20 6:40 ` Richard Cochran 2013-11-20 6:40 ` Richard Cochran 2013-11-21 18:16 ` Grant Likely 2013-11-21 18:16 ` Grant Likely 2013-11-21 19:21 ` Russell King - ARM Linux 2013-11-21 19:21 ` Russell King - ARM Linux [not found] ` < 20131121192136.GA16735@n2100.arm.linux.org.uk> [not found] ` <20131121192136.GA16735-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org> 2013-11-21 20:47 ` Grant Likely 2013-11-21 20:47 ` Grant Likely [not found] ` <20131121204704.E4487C40753-WNowdnHR2B42iJbIjFUEsiwD8/FfD2ys@public.gmane.org> 2013-11-22 11:43 ` Catalin Marinas [this message] 2013-11-22 11:43 ` Catalin Marinas [not found] ` <CAHkRjk5MstjD9JFk+co8k89i8geJBmSF6uObhGdmWSe0GJHo8g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2013-11-22 12:00 ` Pantelis Antoniou 2013-11-22 12:00 ` Pantelis Antoniou [not found] ` <97692EF2-013E-4E4B-BC16-E0915D67EFEC-wVdstyuyKrO8r51toPun2/C9HSW9iNxf@public.gmane.org> 2014-05-05 7:06 ` Alexander Holler 2014-05-05 7:06 ` Alexander Holler [not found] ` <53673866.9000105-SXC+2es9fhnfWeYVQQPykw@public.gmane.org> 2014-05-05 14:41 ` Arnd Bergmann 2014-05-05 14:41 ` Arnd Bergmann 2014-05-05 15:29 ` Alexander Holler 2014-05-05 15:29 ` Alexander Holler [not found] ` <5367AE6B.3010105-SXC+2es9fhnfWeYVQQPykw@public.gmane.org> 2014-05-05 17:29 ` Arnd Bergmann 2014-05-05 17:29 ` Arnd Bergmann 2014-05-06 15:37 ` Grant Likely 2014-05-06 15:37 ` Grant Likely 2014-05-06 15:27 ` Grant Likely 2014-05-06 15:27 ` Grant Likely [not found] ` <20140506152725.E5B90C40959-WNowdnHR2B42iJbIjFUEsiwD8/FfD2ys@public.gmane.org> 2014-05-06 16:32 ` Olof Johansson 2014-05-06 16:32 ` Olof Johansson 2013-11-18 15:28 ` Rob Herring [not found] ` <5289A356.4060004-Zp4isUonpHBD60Wz+7aTrA@public.gmane.org> 2013-11-18 19:09 ` Olof Johansson 2013-11-18 19:09 ` Olof Johansson [not found] ` <20131118190929.GA5886-O5ziIzlqnXUVNXGz7ipsyg@public.gmane.org> 2013-11-18 20:54 ` Jon Masters 2013-11-18 20:54 ` Jon Masters [not found] ` <528A7EA0.9050101-Zp4isUonpHBD60Wz+7aTrA@public.gmane.org> 2013-11-18 21:50 ` Olof Johansson 2013-11-18 21:50 ` Olof Johansson 2013-11-18 21:32 ` Grant Likely 2013-11-18 21:32 ` Grant Likely 2013-11-18 22:47 ` David Goodenough 2013-11-19 12:48 ` Arnd Bergmann 2013-11-19 12:48 ` Arnd Bergmann 2013-11-19 13:34 ` David Goodenough 2013-11-19 16:52 ` Arnd Bergmann 2013-11-21 18:23 ` Grant Likely 2013-11-19 14:33 ` Grant Likely [not found] ` <CAOesGMjKeRb=fFJM0MabDihbEiCGM4EqW9D5i_6-RFxTnpB4Qw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2013-11-15 20:58 ` Arnd Bergmann 2013-11-15 20:58 ` Arnd Bergmann [not found] ` <201311152158.32644.arnd-r2nGTMty4D4@public.gmane.org> 2013-11-15 21:44 ` Olof Johansson 2013-11-15 21:44 ` Olof Johansson [not found] ` <CAOesGMhkCn2zeJj_ZZAZu_wJya-4evWEqNHpVJEpjxzWHVWY3A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2013-11-17 17:18 ` Stefano Stabellini 2013-11-17 17:18 ` Stefano Stabellini [not found] ` <alpine.DEB.2.02.1311171705130.4714-7Z66fg9igcxYtxbxJUhB2Dgeux46jI+i@public.gmane.org> 2013-11-17 18:10 ` Arnd Bergmann 2013-11-17 18:10 ` Arnd Bergmann [not found] ` < CAOesGMiYyOcvr3Aqs-p8zc=XDwJM9NZtNxtxrTZssc6F=siZCw@mail.gmail.com> 2013-11-17 22:20 ` Olof Johansson 2013-11-17 22:20 ` Olof Johansson [not found] ` <CAOesGMiYyOcvr3Aqs-p8zc=XDwJM9NZtNxtxrTZssc6F=siZCw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2013-11-18 8:45 ` Arnd Bergmann 2013-11-18 8:45 ` Arnd Bergmann 2013-11-18 17:33 ` Jon Masters 2013-11-18 17:38 ` Russell King - ARM Linux [not found] ` <528A4F5F.7080104-Zp4isUonpHBD60Wz+7aTrA@public.gmane.org> 2013-11-18 19:21 ` Olof Johansson 2013-11-18 19:21 ` Olof Johansson 2013-11-21 18:26 ` Grant Likely 2013-11-18 15:04 ` Mark Brown 2013-11-18 15:04 ` Mark Brown 2013-11-18 15:10 ` Arnd Bergmann 2013-11-18 15:10 ` Arnd Bergmann [not found] ` < 201311181610.33105.arnd@arndb.de> [not found] ` <201311181610.33105.arnd-r2nGTMty4D4@public.gmane.org> 2013-11-18 21:38 ` Grant Likely 2013-11-18 21:38 ` Grant Likely 2013-11-18 23:25 ` Leif Lindholm 2013-11-18 23:25 ` Leif Lindholm [not found] ` <20131118232536.GF1567-GZEopFhza0F985/tl1ce8aaDwS/vmuI7@public.gmane.org> 2013-11-18 23:29 ` Olof Johansson 2013-11-18 23:29 ` Olof Johansson [not found] ` <CAOesGMh373ZsLzoGHJm+xV3uFVjh2CBSA8SXY4PA+VxL3a5W1w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2013-11-18 23:34 ` Leif Lindholm 2013-11-18 23:34 ` Leif Lindholm
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