From: Felipe Balbi <balbi@ti.com>
To: Nishanth Menon <nm@ti.com>
Cc: "Balbi, Felipe" <balbi@ti.com>,
Mark Rutland <mark.rutland@arm.com>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
Tony Lindgren <tony@atomide.com>,
Viresh Kumar <viresh.kumar@linaro.org>,
"rjw@rjwysocki.net" <rjw@rjwysocki.net>,
Rob Herring <robh+dt@kernel.org>,
Linux OMAP Mailing List <linux-omap@vger.kernel.org>,
Linux ARM Kernel Mailing List
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 1/2] arm: boot: dts: am4372: add operating points
Date: Mon, 11 May 2015 12:02:23 -0500 [thread overview]
Message-ID: <20150511170223.GC22558@saruman.tx.rr.com> (raw)
In-Reply-To: <CAGo_u6oQ_uzO4B4ezC-Vi8_FQZWH49+6fbutdVgP5s0fL3MhrA@mail.gmail.com>
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HI,
On Mon, May 11, 2015 at 11:46:13AM -0500, Nishanth Menon wrote:
> On Mon, May 11, 2015 at 10:19 AM, Felipe Balbi <balbi@ti.com> wrote:
> >
> >> in my opinion, doing a temporary hack in upstream kernel is not an
> >> elegant approach. I suggest helping review and approving Viresh's new
> >
> > however this is not a hack, right ? If we get rid of OPP_NITRO and
> > OPP_TURBO, then we will more than likely always be dealing with safe
> > OPPs (yeah, I need to confirm this since it's not on public TRM, so as
> > of now, take this statement with a grain of salt :-), moreover, even
> > though we're trying to change opp bindings, the current situation is
> > still very much accepted and will remain valid even after changing
> > binding :-)
>
> yes - if we do have a documented subset of OPPs that are valid for all
> "variants" of AM437x, we could add that in using the legacy bindings,
> but, we will have to do a transition over to the new bindings when
> they are finalized to support all OPPs appropriately.
sounds fair to me.
> > Not to mention that people using AM43xx today might be using it under
> > invalid OPPs and decreasing silicon life; I'd assume that's a very
> > urgent detail to sort out.
>
> While I do agree that there is always a debate between fixing things
> in kernel for bootloader issues, but it does not mean that we should
> just postpone fixing the bootloader in this case - since, at this very
> moment, we are already in broken configuration - example sitting on a
> bootloader shell does have the same impact we have at this time.
agreed, I'll cook up a patch for bootloader too.
> Lets try to help Viresh in getting his series sorted out meanwhile -
> maybe others can help as well :(
sure.
--
balbi
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WARNING: multiple messages have this Message-ID (diff)
From: balbi@ti.com (Felipe Balbi)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] arm: boot: dts: am4372: add operating points
Date: Mon, 11 May 2015 12:02:23 -0500 [thread overview]
Message-ID: <20150511170223.GC22558@saruman.tx.rr.com> (raw)
In-Reply-To: <CAGo_u6oQ_uzO4B4ezC-Vi8_FQZWH49+6fbutdVgP5s0fL3MhrA@mail.gmail.com>
HI,
On Mon, May 11, 2015 at 11:46:13AM -0500, Nishanth Menon wrote:
> On Mon, May 11, 2015 at 10:19 AM, Felipe Balbi <balbi@ti.com> wrote:
> >
> >> in my opinion, doing a temporary hack in upstream kernel is not an
> >> elegant approach. I suggest helping review and approving Viresh's new
> >
> > however this is not a hack, right ? If we get rid of OPP_NITRO and
> > OPP_TURBO, then we will more than likely always be dealing with safe
> > OPPs (yeah, I need to confirm this since it's not on public TRM, so as
> > of now, take this statement with a grain of salt :-), moreover, even
> > though we're trying to change opp bindings, the current situation is
> > still very much accepted and will remain valid even after changing
> > binding :-)
>
> yes - if we do have a documented subset of OPPs that are valid for all
> "variants" of AM437x, we could add that in using the legacy bindings,
> but, we will have to do a transition over to the new bindings when
> they are finalized to support all OPPs appropriately.
sounds fair to me.
> > Not to mention that people using AM43xx today might be using it under
> > invalid OPPs and decreasing silicon life; I'd assume that's a very
> > urgent detail to sort out.
>
> While I do agree that there is always a debate between fixing things
> in kernel for bootloader issues, but it does not mean that we should
> just postpone fixing the bootloader in this case - since, at this very
> moment, we are already in broken configuration - example sitting on a
> bootloader shell does have the same impact we have at this time.
agreed, I'll cook up a patch for bootloader too.
> Lets try to help Viresh in getting his series sorted out meanwhile -
> maybe others can help as well :(
sure.
--
balbi
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next prev parent reply other threads:[~2015-05-11 17:04 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-08 19:57 [PATCH 1/2] arm: boot: dts: am4372: add operating points Felipe Balbi
2015-05-08 19:57 ` Felipe Balbi
2015-05-08 19:57 ` [PATCH 2/2] cpufreq: dt: allow driver to boot automatically Felipe Balbi
2015-05-08 19:57 ` Felipe Balbi
2015-05-08 20:16 ` Nishanth Menon
2015-05-08 20:16 ` Nishanth Menon
2015-05-09 2:29 ` Viresh Kumar
2015-05-09 2:29 ` Viresh Kumar
2015-06-16 21:40 ` Felipe Balbi
2015-06-16 21:40 ` Felipe Balbi
2015-06-16 22:04 ` Rafael J. Wysocki
2015-06-16 22:04 ` Rafael J. Wysocki
2015-06-16 22:08 ` Felipe Balbi
2015-06-16 22:08 ` Felipe Balbi
2015-05-08 20:09 ` [PATCH 1/2] arm: boot: dts: am4372: add operating points Nishanth Menon
2015-05-08 20:09 ` Nishanth Menon
2015-05-08 20:12 ` Nishanth Menon
2015-05-08 20:12 ` Nishanth Menon
2015-05-08 20:24 ` Felipe Balbi
2015-05-08 20:24 ` Felipe Balbi
2015-05-11 0:23 ` Nishanth Menon
2015-05-11 0:23 ` Nishanth Menon
2015-05-11 15:19 ` Felipe Balbi
2015-05-11 15:19 ` Felipe Balbi
2015-05-11 16:46 ` Nishanth Menon
2015-05-11 16:46 ` Nishanth Menon
2015-05-11 17:02 ` Felipe Balbi [this message]
2015-05-11 17:02 ` Felipe Balbi
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