From: Leonard Crestez <leonard.crestez@nxp.com>
To: Angus Ainslie <angus@akkea.ca>, Jacky Bai <ping.bai@nxp.com>
Cc: "Marco Felsch" <m.felsch@pengutronix.de>,
"Georgi Djakov" <georgi.djakov@linaro.org>,
"Rob Herring" <robh+dt@kernel.org>,
"Chanwoo Choi" <cw00.choi@samsung.com>,
"Artur Świgoń" <a.swigon@partner.samsung.com>,
"Alexandre Bailon" <abailon@baylibre.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
"Anson Huang" <anson.huang@nxp.com>,
"Abel Vesa" <abel.vesa@nxp.com>,
"Krzysztof Kozlowski" <krzk@kernel.org>,
"MyungJoo Ham" <myungjoo.ham@samsung.com>,
"Kyungmin Park" <kyungmin.park@samsung.com>,
"Saravana Kannan" <saravanak@google.com>,
"Mark Rutland" <mark.rutland@arm.com>,
"Viresh Kumar" <viresh.kumar@linaro.org>,
"Shawn Guo" <shawnguo@kernel.org>,
"Aisheng Dong" <aisheng.dong@nxp.com>,
"Fabio Estevam" <fabio.estevam@nxp.com>,
"Stephen Boyd" <sboyd@kernel.org>,
"Michael Turquette" <mturquette@baylibre.com>,
"Matthias Kaehlcke" <mka@chromium.org>,
"Martin Kepplinger" <martink@posteo.de>,
"Silvano Di Ninno" <silvano.dininno@nxp.com>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
dl-linux-imx <linux-imx@nxp.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-pm-owner@vger.kernel.org" <linux-pm-owner@vger.kernel.org>
Subject: Re: [PATCH RFC v6 2/9] PM / devfreq: Add generic imx bus scaling driver
Date: Wed, 20 Nov 2019 18:02:54 +0000 [thread overview]
Message-ID: <VI1PR04MB702329DCBBC98C405421D8DFEE4F0@VI1PR04MB7023.eurprd04.prod.outlook.com> (raw)
In-Reply-To: d1ca09bdeb7580c9b62b491c6eb30148@akkea.ca
On 20.11.2019 18:38, Angus Ainslie wrote:
> On 2019-11-20 08:30, Leonard Crestez wrote:
>> On 20.11.2019 17:41, Angus Ainslie wrote:
>>> Hi Leonard,
>>>
>>> On 2019-11-20 07:04, Leonard Crestez wrote:
>>>> On 20.11.2019 16:08, Angus Ainslie wrote:
>>>> Is "mainline ATF" an important criteria for Purism?
>>>
>>> Yes we intend to bring all of our patches to mainline and were hoping
>>> that NXP would be doing the same. Shouldn't a mainline kernel run on a
>>> mainline ATF ?
>>
>> You can still use mainline ATF (tested right now) but the imx8m-ddrc
>> driver won't probe.
>
> Sorry I was talking about the DDR frequency scaling specifically. >
>> The ability to mix and match different branches of firmware and kernel
>> is very useful for testing. There might be slight incompatibilities but
>> in theory if a feature depends on both firmware and kernel support then
>> it should gracefully degrade rather than crash or hang.
>
> I saw the check you put in for the correct ATF version and that's very
> helpful thanks.
>
>> ATF support for this feature will be mainlined eventually, I picked the
>> linux side first because review is more challenging and changes are
>> much larger relative to what we have in our internal tree.
>
> Do you have a patch against mainline ATF that we can test this feature
> with ?
Not right now, and imx atf is based on a slightly older version so some
porting effort might be required.
--
Regards,
Leonard
next prev parent reply other threads:[~2019-11-20 18:03 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-14 20:09 [PATCH RFC v6 0/9] interconnect: Add imx support via devfreq Leonard Crestez
2019-11-14 20:09 ` [PATCH RFC v6 1/9] dt-bindings: interconnect: Add bindings for imx8m noc Leonard Crestez
2019-12-16 1:12 ` Chanwoo Choi
2019-12-16 3:25 ` Chanwoo Choi
2019-12-16 15:09 ` Leonard Crestez
2019-12-17 0:15 ` Chanwoo Choi
2019-12-19 14:31 ` Leonard Crestez
2019-12-19 15:55 ` Chanwoo Choi
2019-12-19 19:11 ` Leonard Crestez
2019-11-14 20:09 ` [PATCH RFC v6 2/9] PM / devfreq: Add generic imx bus scaling driver Leonard Crestez
2019-11-20 14:08 ` Angus Ainslie
2019-11-20 15:04 ` Leonard Crestez
2019-11-20 15:29 ` Marco Felsch
2019-11-20 15:41 ` Angus Ainslie
2019-11-20 16:30 ` Leonard Crestez
2019-11-20 16:38 ` Angus Ainslie
2019-11-20 18:02 ` Leonard Crestez [this message]
2020-02-04 9:45 ` Martin Kepplinger
2020-02-13 10:53 ` Martin Kepplinger
2019-12-13 1:30 ` Chanwoo Choi
2019-12-13 1:51 ` Chanwoo Choi
2019-12-16 1:06 ` Chanwoo Choi
2019-12-16 14:57 ` Leonard Crestez
2019-12-17 0:41 ` Chanwoo Choi
2019-12-17 21:05 ` Leonard Crestez
2019-12-18 3:15 ` Chanwoo Choi
2019-12-18 10:10 ` Leonard Crestez
2019-12-18 10:46 ` Chanwoo Choi
2019-12-18 17:06 ` Chanwoo Choi
2019-11-14 20:09 ` [PATCH RFC v6 3/9] PM / devfreq: imx: Register interconnect device Leonard Crestez
2019-12-13 4:28 ` Chanwoo Choi
2019-12-16 15:00 ` Leonard Crestez
2019-12-17 1:02 ` Chanwoo Choi
2019-12-18 10:13 ` Leonard Crestez
2019-12-18 11:05 ` Chanwoo Choi
2019-12-18 17:13 ` Leonard Crestez
2019-12-19 7:07 ` Chanwoo Choi
2019-11-14 20:09 ` [PATCH RFC v6 4/9] interconnect: Add imx core driver Leonard Crestez
2019-12-12 7:29 ` Georgi Djakov
2019-12-19 0:18 ` Leonard Crestez
2019-11-14 20:09 ` [PATCH RFC v6 5/9] interconnect: imx: Add platform driver for imx8mm Leonard Crestez
2019-12-12 7:35 ` Georgi Djakov
2019-12-16 14:35 ` Leonard Crestez
2019-11-14 20:09 ` [PATCH RFC v6 6/9] interconnect: imx: Add platform driver for imx8mq Leonard Crestez
2019-11-14 20:09 ` [PATCH RFC v6 7/9] interconnect: imx: Add platform driver for imx8mn Leonard Crestez
2019-11-14 20:09 ` [PATCH RFC v6 8/9] arm64: dts: imx8m: Add NOC nodes Leonard Crestez
2019-11-14 20:09 ` [PATCH RFC v6 9/9] arm64: dts: imx8m: Add interconnect provider properties Leonard Crestez
2019-12-11 9:53 ` [PATCH RFC v6 0/9] interconnect: Add imx support via devfreq Leonard Crestez
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