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From: Michael Turquette <mike.turquette@linaro.org>
To: Mark Brown <broonie@kernel.org>, Viresh Kumar <viresh.kumar@linaro.org>
Cc: Rafael Wysocki <rjw@rjwysocki.net>,
	rob.herring@linaro.org, arnd.bergmann@linaro.org, nm@ti.com,
	sboyd@codeaurora.org, linaro-kernel@lists.linaro.org,
	linux-pm@vger.kernel.org, grant.likely@linaro.org,
	olof@lixom.net, Sudeep.Holla@arm.com, devicetree@vger.kernel.org,
	viswanath.puttagunta@linaro.org, l.stach@pengutronix.de,
	thomas.petazzoni@free-electrons.com,
	linux-arm-kernel@lists.infradead.org, ta.omasab@gmail.com,
	kesavan.abhilash@gmail.com, khilman@linaro.org,
	santosh.shilimkar@oracle.com
Subject: Re: [PATCH V4 1/3] OPP: Redefine bindings to overcome shortcomings
Date: Wed, 13 May 2015 17:32:01 -0700	[thread overview]
Message-ID: <20150514003201.20636.83883@quantum> (raw)
In-Reply-To: <20150513110357.GD3066@sirena.org.uk>

Quoting Mark Brown (2015-05-13 04:03:57)
> On Wed, May 13, 2015 at 02:25:28PM +0530, Viresh Kumar wrote:
> > On 12-05-15, 14:42, Michael Turquette wrote:
> > > Quoting Viresh Kumar (2015-04-30 05:07:59)
> > 
> > > Why should this new binding exist?
> 
> > The answer to this particular query is perhaps simple, i.e. we have
> > unsolved problems that we wanted to solve in a generic way.
> 
> > But probably the bigger question is "Should we really put the OPPs
> > (new or old bindings) in DT".
> 
> And also is trying to do this in a completely generic manner the right
> way of going about things - do we really understand the problem area
> well enough to create a completely generic solution for all cases,
> bearing in mind that once things go into a DT binding they become an ABI?

No, we don't understand the problem space well enough to form an ABI.
And even if we did understand it perfectly today, the constraints and
expressions will change tomorrow.

Putting this stuff in C without any philosophical constraints on whether
or not we can change it later is the way to go.

Regards,
Mike

  reply	other threads:[~2015-05-14  0:32 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-30 12:07 [PATCH V4 0/3] OPP: Introduce OPP (V2) bindings Viresh Kumar
     [not found] ` <cover.1430394884.git.viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2015-04-30 12:07   ` [PATCH V4 1/3] OPP: Redefine bindings to overcome shortcomings Viresh Kumar
     [not found]     ` <d225e73f183e01fa0b71e4b9248b6a19a3f7d697.1430394884.git.viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2015-05-04 12:12       ` Mark Brown
2015-05-05 10:48         ` Viresh Kumar
2015-05-05 10:57           ` Mark Brown
     [not found]             ` <20150505105714.GA22845-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-05 11:43               ` Viresh Kumar
2015-05-05 17:12                 ` Mark Brown
2015-05-06  6:53                   ` Viresh Kumar
2015-05-07  5:52                     ` Stephen Boyd
2015-05-07 11:02                       ` Mark Brown
2015-05-07 21:18                         ` Stephen Boyd
2015-05-07 22:18                           ` Mark Brown
     [not found]                             ` <20150507221842.GW22845-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-08  6:47                               ` Viresh Kumar
2015-05-08 10:58                                 ` Mark Brown
2015-05-08 11:01                                   ` Viresh Kumar
2015-05-11  1:07                                 ` Nishanth Menon
2015-05-12  5:20                                   ` Viresh Kumar
2015-05-12 19:01                                     ` Michael Turquette
2015-05-12 19:14                                       ` Nishanth Menon
2015-05-12 19:41                                         ` Mark Brown
2015-05-12 19:57                                           ` Nishanth Menon
2015-05-13 11:54                                             ` Mark Brown
     [not found]                                               ` <20150513115422.GQ3066-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-05-13 14:24                                                 ` Nishanth Menon
2015-05-13 15:07                                                   ` Mark Brown
2015-05-13 15:43                                                     ` Nishanth Menon
2015-05-07 12:13                       ` Viresh Kumar
2015-05-07 21:30                         ` Stephen Boyd
2015-05-08  6:49                           ` Viresh Kumar
2015-05-11  1:02       ` Nishanth Menon
2015-05-12  5:16         ` Viresh Kumar
2015-05-12 16:04           ` Nishanth Menon
2015-05-13  5:05             ` Viresh Kumar
2015-05-13 15:00               ` Nishanth Menon
2015-05-13 15:16                 ` Mark Brown
2015-05-13 16:14                   ` Nishanth Menon
2015-05-13 16:21                     ` Mark Brown
2015-05-13 16:34                       ` Nishanth Menon
2015-05-12 16:19     ` Felipe Balbi
2015-05-13  4:45       ` Viresh Kumar
2015-05-12 21:42     ` Michael Turquette
2015-05-13  8:55       ` Viresh Kumar
2015-05-13 11:03         ` Mark Brown
2015-05-14  0:32           ` Michael Turquette [this message]
     [not found]             ` <CAKohpokeKtcJdrBcPZBBPR2zfJgpvuM_=wRaX5q1Uto2qx1oHQ@mail.gmail.com>
2015-05-15 14:15               ` Viresh Kumar
2015-05-15 15:43                 ` Nishanth Menon
2015-05-15 17:27             ` Rob Herring
2015-05-21  6:02         ` Nishanth Menon
2015-05-22 14:04           ` Viresh Kumar
2015-05-22 16:04             ` Rob Herring
2015-05-22 17:42               ` Nishanth Menon
2015-05-26  5:25                 ` Viresh Kumar
2015-05-20  0:51     ` Stephen Boyd
2015-05-20  2:07       ` Viresh Kumar
2015-05-20 19:39         ` Stephen Boyd
2015-05-21  4:33           ` Viresh Kumar
2015-05-25 11:59             ` Viresh Kumar
2015-04-30 12:08 ` [PATCH V4 2/3] OPP: Allow multiple OPP tables to be passed via DT Viresh Kumar
2015-05-12 16:09   ` Nishanth Menon
2015-05-13  4:41     ` Viresh Kumar
2015-05-20  0:52   ` Stephen Boyd
2015-04-30 12:08 ` [PATCH V4 3/3] OPP: Add 'opp-next' in operating-points-v2 bindings Viresh Kumar
2015-05-12 21:47   ` Michael Turquette

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