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From: Lucas Stach <l.stach@pengutronix.de>
To: Viresh Kumar <viresh.kumar@linaro.org>,
	Bastian Stender <bst@pengutronix.de>
Cc: devicetree@vger.kernel.org, Anson Huang <anson.huang@nxp.com>,
	linux-pm@vger.kernel.org,
	"Rafael J . Wysocki" <rjw@rjwysocki.net>,
	linux-imx@nxp.com, kernel@pengutronix.de,
	Zhang Rui <rui.zhang@intel.com>,
	Leonard Crestez <leonard.crestez@nxp.com>,
	Shawn Guo <shawnguo@kernel.org>
Subject: Re: [PATCH v3 1/2] cpufreq: imx6q/thermal: imx: register cooling device depending on OF
Date: Tue, 19 Jun 2018 11:22:19 +0200	[thread overview]
Message-ID: <1529400139.7211.12.camel@pengutronix.de> (raw)
In-Reply-To: <20180619090556.p2xjpbealrfej533@vireshk-i7>

Hi Viresh,

Am Dienstag, den 19.06.2018, 14:35 +0530 schrieb Viresh Kumar:
> On 08-06-18, 11:06, Bastian Stender wrote:
> > The cooling device should be part of the i.MX cpufreq driver, but it
> > cannot be removed for the sake of DT stability.
> 
> I am not sure what you meant by DT stability here. Can you please explain that ?

The goal that we strive for in i.MX land is that a any newer kernel
boots on a older DT without functional regressions compared to a
matching DT/kernel pair when possible.

> What about calling both OF and non-OF calls from the cpufreq driver, based on
> the fact that data is present in DT or not ?

That's right, we could move the cooling device registration completely
to the cpufreq driver. As that would consolidate the code some more, I
agree that this is the right way to go.

Regards,
Lucas

  reply	other threads:[~2018-06-19  9:22 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-08  9:06 [PATCH v3 1/2] cpufreq: imx6q/thermal: imx: register cooling device depending on OF Bastian Stender
2018-06-08  9:06 ` [PATCH v3 2/2] ARM: dts: imx: add cooling-cells for cpufreq cooling device Bastian Stender
2018-06-19  9:06   ` Viresh Kumar
2018-06-28  0:59   ` Shawn Guo
2018-06-08 11:47 ` [PATCH v3 1/2] cpufreq: imx6q/thermal: imx: register cooling device depending on OF Lucas Stach
2018-06-19  9:05 ` Viresh Kumar
2018-06-19  9:22   ` Lucas Stach [this message]
2018-06-19  9:31     ` Viresh Kumar
2018-07-04 10:51       ` Rafael J. Wysocki

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