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From: Mark Rutland <mark.rutland@arm.com>
To: Yong Wu <yong.wu@mediatek.com>
Cc: Rob Herring <robh+dt@kernel.org>, Joerg Roedel <joro@8bytes.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Robin Murphy <Robin.Murphy@arm.com>,
	Will Deacon <Will.Deacon@arm.com>,
	Daniel Kurtz <djkurtz@google.com>, Tomasz Figa <tfiga@google.com>,
	Lucas Stach <l.stach@pengutronix.de>,
	Catalin Marinas <Catalin.Marinas@arm.com>,
	"linux-mediatek@lists.infradead.org" 
	<linux-mediatek@lists.infradead.org>,
	Sasha Hauer <kernel@pengutronix.de>,
	"srv_heupstream@mediatek.com" <srv_heupstream@mediatek.com>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	"iommu@lists.linux-foundation.org"
	<iommu@lists.linux-foundation.org>
Subject: Re: [PATCH 3/5] dt-bindings: mediatek: Add smi dts binding
Date: Tue, 14 Apr 2015 14:56:47 +0100	[thread overview]
Message-ID: <20150414135647.GG28709@leverpostej> (raw)
In-Reply-To: <1429019389.16264.5.camel@mhfsdcap03>

> > >       smi_common:smi@14022000 {
> > >                  compatible = “mediate, mt8173-smi”;
> > >                  reg = <0 0x14022000 0 0x1000>;
> > >                  clocks = <&mmsys MM_SMI_COMMON>;
> > >                  clocks-names = “smi_common”;
> > >       };
> > > 
> > >       larb0: larb@14021000 {
> > >                  compatible = “mediate, mt8173-smi-larb”;
> > >                  reg = <0 0x14021000 0 0x1000>;
> > >                  smi = <&smi_common>;
> > >                  clocks = <&mmsys MM_SMI_LARB0>, 
> > > 		 	<&mmsys MM_SMI_LARB0>;
> > >                  clocks-names = “apb_clk”, “smi_clk”;
> > >      };
> > > 
> > >      larb1: larb@16010000 {
> > >                  compatible = “mediate, mt8173-smi-larb”;
> > >                  reg = <0 0x16010000 0 0x1000>;
> > >                  smi = <&smi_common>;
> > >                  clocks = <&vdecsys VDEC_CKEN>, 
> > > 			 <&mmsys VDEC_LARB_CKEN>;
> > >                  clocks-names = “apb_clk”, “smi_clk”;
> > >       };
> > >       … 
> > >      In some local arbiter, the source clock of the APB clock and the
> > > SMI clock may be the same, like larb0. so the two clocks are the same.
> > > And they may be different in other local arbiteres, like larb1.      
> > > 
> > >      If it is designed like this, is it ok?
> > 
> > That looks pretty good; the clocks and names on the larb nodes seem
> > sensible.
> > 
> > The naming of the "smi_common" clock on the smi_common node looks a bit
> > odd though. Is that really what the clock input is called?
> > 
> > Mark.
>      After check with DE, the smi_common clock also have its APB clock
> and the smi clock(they have the same clock source).
>     And I prepare to delete "_clk" in all the clock-names.
>     So it may be like this:
>          smi_common:smi@14022000 {
>                  compatible = “mediate, mt8173-smi”;
>                     reg = <0 0x14022000 0 0x1000>;
>                   clocks = <&mmsys MM_SMI_COMMON>, 
> 			   <&mmsys MM_SMI_COMMON>;
>                   clocks-names = “apk”,"smi";
>         };
>      How about this?

That looks fine to me. I assume "apk" should be "apb" in the last
example.

Mark.

WARNING: multiple messages have this Message-ID (diff)
From: mark.rutland@arm.com (Mark Rutland)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/5] dt-bindings: mediatek: Add smi dts binding
Date: Tue, 14 Apr 2015 14:56:47 +0100	[thread overview]
Message-ID: <20150414135647.GG28709@leverpostej> (raw)
In-Reply-To: <1429019389.16264.5.camel@mhfsdcap03>

> > >       smi_common:smi at 14022000 {
> > >                  compatible = ?mediate, mt8173-smi?;
> > >                  reg = <0 0x14022000 0 0x1000>;
> > >                  clocks = <&mmsys MM_SMI_COMMON>;
> > >                  clocks-names = ?smi_common?;
> > >       };
> > > 
> > >       larb0: larb at 14021000 {
> > >                  compatible = ?mediate, mt8173-smi-larb?;
> > >                  reg = <0 0x14021000 0 0x1000>;
> > >                  smi = <&smi_common>;
> > >                  clocks = <&mmsys MM_SMI_LARB0>, 
> > > 		 	<&mmsys MM_SMI_LARB0>;
> > >                  clocks-names = ?apb_clk?, ?smi_clk?;
> > >      };
> > > 
> > >      larb1: larb at 16010000 {
> > >                  compatible = ?mediate, mt8173-smi-larb?;
> > >                  reg = <0 0x16010000 0 0x1000>;
> > >                  smi = <&smi_common>;
> > >                  clocks = <&vdecsys VDEC_CKEN>, 
> > > 			 <&mmsys VDEC_LARB_CKEN>;
> > >                  clocks-names = ?apb_clk?, ?smi_clk?;
> > >       };
> > >       ? 
> > >      In some local arbiter, the source clock of the APB clock and the
> > > SMI clock may be the same, like larb0. so the two clocks are the same.
> > > And they may be different in other local arbiteres, like larb1.      
> > > 
> > >      If it is designed like this, is it ok?
> > 
> > That looks pretty good; the clocks and names on the larb nodes seem
> > sensible.
> > 
> > The naming of the "smi_common" clock on the smi_common node looks a bit
> > odd though. Is that really what the clock input is called?
> > 
> > Mark.
>      After check with DE, the smi_common clock also have its APB clock
> and the smi clock(they have the same clock source).
>     And I prepare to delete "_clk" in all the clock-names.
>     So it may be like this:
>          smi_common:smi at 14022000 {
>                  compatible = ?mediate, mt8173-smi?;
>                     reg = <0 0x14022000 0 0x1000>;
>                   clocks = <&mmsys MM_SMI_COMMON>, 
> 			   <&mmsys MM_SMI_COMMON>;
>                   clocks-names = ?apk?,"smi";
>         };
>      How about this?

That looks fine to me. I assume "apk" should be "apb" in the last
example.

Mark.

  parent reply	other threads:[~2015-04-14 13:57 UTC|newest]

Thread overview: 160+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-06 10:48 [RFC PATCH 0/5] MT8173 IOMMU support yong.wu
2015-03-06 10:48 ` yong.wu at mediatek.com
2015-03-06 10:48 ` yong.wu-NuS5LvNUpcJWk0Htik3J/w
2015-03-06 10:48 ` [PATCH 1/5] soc: mediatek: Add SMI driver yong.wu
2015-03-06 10:48   ` yong.wu at mediatek.com
2015-03-06 10:48   ` yong.wu-NuS5LvNUpcJWk0Htik3J/w
2015-03-06 11:30   ` Paul Bolle
2015-03-06 11:30     ` Paul Bolle
2015-03-09 11:57     ` Yong Wu
2015-03-09 11:57       ` Yong Wu
2015-03-09 11:57       ` Yong Wu
2015-03-09 17:59       ` Paul Bolle
2015-03-09 17:59         ` Paul Bolle
2015-03-09 17:59         ` Paul Bolle
2015-03-09 21:54         ` Arnd Bergmann
2015-03-09 21:54           ` Arnd Bergmann
2015-03-09 21:54           ` Arnd Bergmann
2015-03-10  6:17         ` Yingjoe Chen
2015-03-10  6:17           ` Yingjoe Chen
2015-03-10  6:17           ` Yingjoe Chen
2015-03-09  3:26   ` Yingjoe Chen
2015-03-09  3:26     ` Yingjoe Chen
2015-03-09  3:26     ` Yingjoe Chen
2015-03-09 21:56     ` Arnd Bergmann
2015-03-09 21:56       ` Arnd Bergmann
2015-03-09 21:56       ` Arnd Bergmann
2015-03-10  6:27       ` Yingjoe Chen
2015-03-10  6:27         ` Yingjoe Chen
2015-03-10  6:27         ` Yingjoe Chen
2015-03-10  9:05         ` Arnd Bergmann
2015-03-10  9:05           ` Arnd Bergmann
2015-03-10  9:05           ` Arnd Bergmann
2015-03-10  9:24       ` Lucas Stach
2015-03-10  9:24         ` Lucas Stach
2015-03-10  9:24         ` Lucas Stach
2015-03-09 11:03   ` Sascha Hauer
2015-03-09 11:03     ` Sascha Hauer
2015-03-09 11:03     ` Sascha Hauer
2015-03-06 10:48 ` [PATCH 2/5] iommu/mediatek: Add mt8173 IOMMU driver yong.wu
2015-03-06 10:48   ` yong.wu at mediatek.com
2015-03-06 10:48   ` yong.wu-NuS5LvNUpcJWk0Htik3J/w
2015-03-06 10:58   ` Will Deacon
2015-03-06 10:58     ` Will Deacon
2015-03-06 10:58     ` Will Deacon
2015-03-09 12:11     ` Yong Wu
2015-03-09 12:11       ` Yong Wu
2015-03-09 12:11       ` Yong Wu
2015-03-17 15:14       ` Will Deacon
2015-03-17 15:14         ` Will Deacon
2015-03-17 15:14         ` Will Deacon
2015-03-06 17:15   ` Mitchel Humpherys
2015-03-06 17:15     ` Mitchel Humpherys
2015-03-06 17:15     ` Mitchel Humpherys
2015-03-09 12:16     ` Yong Wu
2015-03-09 12:16       ` Yong Wu
2015-03-09 12:16       ` Yong Wu
2015-03-09 16:57       ` Mitchel Humpherys
2015-03-09 16:57         ` Mitchel Humpherys
2015-03-08  4:12   ` Tomasz Figa
2015-03-08  4:12     ` Tomasz Figa
2015-03-08  4:12     ` Tomasz Figa
2015-03-12 14:16     ` Yong Wu
2015-03-12 14:16       ` Yong Wu
2015-03-12 14:16       ` Yong Wu
2015-03-09  8:24   ` Daniel Kurtz
2015-03-09  8:24     ` Daniel Kurtz
2015-03-09  8:24     ` Daniel Kurtz
2015-03-09 11:11   ` Tomasz Figa
2015-03-09 11:11     ` Tomasz Figa
2015-03-09 11:11     ` Tomasz Figa
2015-03-09 14:46     ` Yingjoe Chen
2015-03-09 14:46       ` Yingjoe Chen
2015-03-09 14:46       ` Yingjoe Chen
2015-03-09 17:00       ` Tomasz Figa
2015-03-09 17:00         ` Tomasz Figa
2015-03-09 17:00         ` Tomasz Figa
2015-03-10  3:41         ` Yingjoe Chen
2015-03-10  3:41           ` Yingjoe Chen
2015-03-10  3:41           ` Yingjoe Chen
2015-03-10  4:06           ` Tomasz Figa
2015-03-10  4:06             ` Tomasz Figa
2015-03-10  4:06             ` Tomasz Figa
2015-03-11 10:53   ` Tomasz Figa
2015-03-11 10:53     ` Tomasz Figa
2015-03-11 10:53     ` Tomasz Figa
2015-03-18 11:22     ` Yong Wu
2015-03-18 11:22       ` Yong Wu
2015-03-18 11:22       ` Yong Wu
2015-03-20 19:14       ` Robin Murphy
2015-03-20 19:14         ` Robin Murphy
2015-03-20 19:14         ` Robin Murphy
2015-04-14  6:50         ` Yong Wu
2015-04-14  6:50           ` Yong Wu
2015-04-14  6:50           ` Yong Wu
2015-03-27  9:41       ` Tomasz Figa
2015-03-27  9:41         ` Tomasz Figa
2015-03-27  9:41         ` Tomasz Figa
2015-04-14  6:31         ` Yong Wu
2015-04-14  6:31           ` Yong Wu
2015-04-14  6:31           ` Yong Wu
2015-04-15  2:20           ` Tomasz Figa
2015-04-15  2:20             ` Tomasz Figa
2015-04-15  2:20             ` Tomasz Figa
2015-04-15  7:06             ` Yong Wu
2015-04-15  7:06               ` Yong Wu
2015-04-15  7:06               ` Yong Wu
2015-04-15  7:41               ` Tomasz Figa
2015-04-15  7:41                 ` Tomasz Figa
2015-04-15  7:41                 ` Tomasz Figa
2015-04-29  6:23         ` Yong Wu
2015-04-29  6:23           ` Yong Wu
2015-04-29  6:23           ` Yong Wu
2015-03-06 10:48 ` [PATCH 3/5] dt-bindings: mediatek: Add smi dts binding yong.wu
2015-03-06 10:48   ` yong.wu at mediatek.com
2015-03-06 10:48   ` yong.wu-NuS5LvNUpcJWk0Htik3J/w
2015-03-06 11:13   ` Mark Rutland
2015-03-06 11:13     ` Mark Rutland
2015-03-06 11:13     ` Mark Rutland
2015-03-09 12:55     ` Yong Wu
2015-03-09 12:55       ` Yong Wu
2015-03-09 12:55       ` Yong Wu
2015-04-14  9:07     ` Yong Wu
2015-04-14  9:07       ` Yong Wu
2015-04-14  9:07       ` Yong Wu
2015-04-14 10:06       ` Mark Rutland
2015-04-14 10:06         ` Mark Rutland
2015-04-14 10:06         ` Mark Rutland
2015-04-14 13:49         ` Yong Wu
2015-04-14 13:49           ` Yong Wu
2015-04-14 13:49           ` Yong Wu
2015-04-14 13:55           ` Yong Wu
2015-04-14 13:55             ` Yong Wu
2015-04-14 13:55             ` Yong Wu
2015-04-14 13:56           ` Mark Rutland [this message]
2015-04-14 13:56             ` Mark Rutland
2015-04-14 13:56             ` Mark Rutland
2015-03-06 14:48   ` Sergei Shtylyov
2015-03-06 14:48     ` Sergei Shtylyov
2015-03-06 14:48     ` Sergei Shtylyov
2015-03-09 12:32     ` Yong Wu
2015-03-09 12:32       ` Yong Wu
2015-03-09 12:32       ` Yong Wu
2015-03-06 10:48 ` [PATCH 4/5] dt-bindings: iommu: Add binding for mediatek IOMMU yong.wu
2015-03-06 10:48   ` yong.wu at mediatek.com
2015-03-06 10:48   ` yong.wu-NuS5LvNUpcJWk0Htik3J/w
2015-03-06 11:21   ` Mark Rutland
2015-03-06 11:21     ` Mark Rutland
2015-03-06 11:21     ` Mark Rutland
2015-03-09 11:30     ` Yong Wu
2015-03-09 11:30       ` Yong Wu
2015-03-09 11:30       ` Yong Wu
2015-03-06 10:48 ` [PATCH 5/5] dts: mt8173: Add iommu/smi nodes for mt8173 yong.wu
2015-03-06 10:48   ` yong.wu at mediatek.com
2015-03-06 10:48   ` yong.wu-NuS5LvNUpcJWk0Htik3J/w
2015-03-07 15:20   ` Daniel Kurtz
2015-03-07 15:20     ` Daniel Kurtz
2015-03-07 15:20     ` Daniel Kurtz
2015-03-09 12:18     ` Yong Wu
2015-03-09 12:18       ` Yong Wu
2015-03-09 12:18       ` Yong Wu

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