From: Henry Chen <henryc.chen@mediatek.com>
To: Rob Herring <robh@kernel.org>
Cc: Georgi Djakov <georgi.djakov@linaro.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Viresh Kumar <vireshk@kernel.org>,
Stephen Boyd <swboyd@chromium.org>,
Ryan Case <ryandcase@chromium.org>,
Nicolas Boichat <drinkcat@google.com>,
Fan Chen <fan.chen@mediatek.com>,
James Liao <jamesjj.liao@mediatek.com>,
Weiyi Lu <weiyi.lu@mediatek.com>, <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH V3 08/10] dt-bindings: interconnect: add MT8183 interconnect dt-bindings
Date: Tue, 3 Sep 2019 20:36:50 +0800 [thread overview]
Message-ID: <1567514210.31403.8.camel@mtksdaap41> (raw)
In-Reply-To: <20190902033045.GA10734@bogus>
On Mon, 2019-09-02 at 14:38 +0100, Rob Herring wrote:
Hi Rob,
> On Wed, Aug 28, 2019 at 08:28:46PM +0800, Henry Chen wrote:
> > Add interconnect provider dt-bindings for MT8183.
> >
> > Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
> > ---
> > .../devicetree/bindings/soc/mediatek/dvfsrc.txt | 9 +++++++++
> > include/dt-bindings/interconnect/mtk,mt8183-emi.h | 18 ++++++++++++++++++
> > 2 files changed, 27 insertions(+)
> > create mode 100644 include/dt-bindings/interconnect/mtk,mt8183-emi.h
> >
> > diff --git a/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt b/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt
> > index 7f43499..da98ec9 100644
> > --- a/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt
> > +++ b/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt
> > @@ -12,6 +12,11 @@ Required Properties:
> > - clock-names: Must include the following entries:
> > "dvfsrc": DVFSRC module clock
> > - clocks: Must contain an entry for each entry in clock-names.
> > +- #interconnect-cells : should contain 1
> > +- interconnect : interconnect providers support dram bandwidth requirements.
> > + The provider is able to communicate with the DVFSRC and send the dram
> > + bandwidth to it. shall contain only one of the following:
> > + "mediatek,mt8183-emi"
> >
> > Example:
> >
> > @@ -20,4 +25,8 @@ Example:
> > reg = <0 0x10012000 0 0x1000>;
> > clocks = <&infracfg CLK_INFRA_DVFSRC>;
> > clock-names = "dvfsrc";
> > + ddr_emi: interconnect {
>
> The EMI is a sub-module in the DVFSRC? This is the DDR controller or
> something else?
Yes, EMI is a sub-module in the DVFSRC, the EMI through interconnect
framework to collect DRAM bandwidth from other device drivers and will
send the bandwidth result to DVFSRC driver.
>
>
> > + compatible = "mediatek,mt8183-emi";
> > + #interconnect-cells = <1>;
> > + };
> > };
>
next prev parent reply other threads:[~2019-09-03 12:37 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-28 12:28 [PATCH V3 00/10] Add driver for dvfsrc, support for active state of scpsys Henry Chen
2019-08-28 12:28 ` [PATCH V3 01/10] dt-bindings: soc: Add dvfsrc driver bindings Henry Chen
2019-08-29 19:16 ` Rob Herring
2019-08-30 5:26 ` Henry Chen
2019-08-28 12:28 ` [PATCH V3 02/10] dt-bindings: soc: Add opp table on scpsys bindings Henry Chen
2019-08-29 19:16 ` Rob Herring
2019-08-28 12:28 ` [PATCH V3 03/10] soc: mediatek: add support for the performance state Henry Chen
2019-08-28 12:28 ` [PATCH V3 04/10] arm64: dts: mt8183: add performance state support of scpsys Henry Chen
2019-08-28 12:28 ` [PATCH V3 05/10] soc: mediatek: add header for mediatek SIP interface Henry Chen
2019-08-28 12:28 ` [PATCH V3 06/10] soc: mediatek: add MT8183 dvfsrc support Henry Chen
2019-08-28 12:28 ` [PATCH V3 07/10] arm64: dts: mt8183: add dvfsrc related nodes Henry Chen
2019-08-28 12:28 ` [PATCH V3 08/10] dt-bindings: interconnect: add MT8183 interconnect dt-bindings Henry Chen
2019-09-02 13:38 ` Rob Herring
2019-09-03 12:36 ` Henry Chen [this message]
2019-08-28 12:28 ` [PATCH V3 09/10] interconnect: mediatek: Add mt8183 interconnect provider driver Henry Chen
2019-09-24 23:53 ` Georgi Djakov
2019-08-28 12:28 ` [PATCH V3 10/10] arm64: dts: mt8183: Add interconnect provider DT nodes Henry Chen
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