From: Georgi Djakov <georgi.djakov@linaro.org>
To: Leonard Crestez <leonard.crestez@nxp.com>,
Chanwoo Choi <cw00.choi@samsung.com>
Cc: "Mark Rutland" <mark.rutland@arm.com>,
"Jacky Bai" <ping.bai@nxp.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
"Viresh Kumar" <viresh.kumar@linaro.org>,
"Michael Turquette" <mturquette@baylibre.com>,
"Angus Ainslie" <angus@akkea.ca>,
"Artur Świgoń" <a.swigon@samsung.com>,
"Alexandre Bailon" <abailon@baylibre.com>,
"Matthias Kaehlcke" <mka@chromium.org>,
"Abel Vesa" <abel.vesa@nxp.com>,
"Anson Huang" <Anson.Huang@nxp.com>,
"Krzysztof Kozlowski" <krzk@kernel.org>,
"MyungJoo Ham" <myungjoo.ham@samsung.com>,
linux-imx@nxp.com, devicetree@vger.kernel.org,
linux-pm@vger.kernel.org, "Rob Herring" <robh+dt@kernel.org>,
"Martin Kepplinger" <martink@posteo.de>,
"Silvano di Ninno" <silvano.dininno@nxp.com>,
linux-arm-kernel@lists.infradead.org,
"Dong Aisheng" <aisheng.dong@nxp.com>,
"Saravana Kannan" <saravanak@google.com>,
"Stephen Boyd" <sboyd@kernel.org>,
"Kyungmin Park" <kyungmin.park@samsung.com>,
kernel@pengutronix.de, "Fabio Estevam" <fabio.estevam@nxp.com>,
"Shawn Guo" <shawnguo@kernel.org>
Subject: Re: [PATCH v3 0/8] interconnect: Add imx support via devfreq
Date: Wed, 29 Apr 2020 10:30:47 +0300 [thread overview]
Message-ID: <86c1596c-d3c2-0c2d-4a7c-016f9cd7d4c4@linaro.org> (raw)
In-Reply-To: <cover.1586174566.git.leonard.crestez@nxp.com>
Hi,
On 4/6/20 15:03, Leonard Crestez wrote:
> This series adds interconnect scaling support for imx8m series chips. It uses a
> per-SOC interconnect provider layered on top of multiple instances of devfreq
> for scalable nodes along the interconnect.
>
> Existing qcom interconnect providers mostly translate bandwidth requests into
> firmware calls but equivalent firmware on imx8m is much thinner. Scaling
> support for individual nodes is implemented as distinct devfreq drivers
> instead.
>
> The imx interconnect provider doesn't communicate with devfreq directly
> but rather computes "minimum frequencies" for nodes along the path and
> creates dev_pm_qos requests.
>
> Since there is no single devicetree node that can represent the
> "interconnect" the main NOC is picked as the "interconnect provider" and
> will probe the interconnect platform device if #interconnect-cells is
> present. This avoids introducing "virtual" devices but it means that DT
> bindings of main NOC includes properties for both devfreq and
> interconnect.
Thank you for your work Leonard! There is no build dependency between the
devfreq and interconnect patches, so i can apply patches 1,4-7.
Chanwoo, should i take also the two devfreq patches with your Ack?
Thanks,
Georgi
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next prev parent reply other threads:[~2020-04-29 7:30 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-06 12:03 [PATCH v3 0/8] interconnect: Add imx support via devfreq Leonard Crestez
2020-04-06 12:03 ` [PATCH v3 1/8] dt-bindings: interconnect: Add bindings for imx8m noc Leonard Crestez
2020-04-14 23:46 ` Rob Herring
2020-04-06 12:03 ` [PATCH v3 2/8] PM / devfreq: Add generic imx bus scaling driver Leonard Crestez
2020-04-07 0:14 ` Chanwoo Choi
2020-04-06 12:03 ` [PATCH v3 3/8] PM / devfreq: imx: Register interconnect device Leonard Crestez
2020-04-06 12:03 ` [PATCH v3 4/8] interconnect: Add imx core driver Leonard Crestez
2020-04-06 12:03 ` [PATCH v3 5/8] interconnect: imx: Add platform driver for imx8mm Leonard Crestez
2020-04-06 12:03 ` [PATCH v3 6/8] interconnect: imx: Add platform driver for imx8mq Leonard Crestez
2020-04-06 12:03 ` [PATCH v3 7/8] interconnect: imx: Add platform driver for imx8mn Leonard Crestez
2020-04-06 12:03 ` [PATCH v3 8/8] arm64: dts: imx8m: Add NOC nodes Leonard Crestez
2020-04-09 9:30 ` Martin Kepplinger
2020-04-29 7:30 ` Georgi Djakov [this message]
2020-05-07 0:02 ` [PATCH v3 0/8] interconnect: Add imx support via devfreq Chanwoo Choi
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