linux-kernel - [PATCH v2 2/6] dt-bindings: mediatek: Add smi dts binding

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Message-ID: <1431683009-18158-3-git-send-email-yong.wu@mediatek.com>
Date:	Fri, 15 May 2015 17:43:25 +0800
From:	Yong Wu <yong.wu@...iatek.com>
To:	Rob Herring <robh+dt@...nel.org>, Joerg Roedel <joro@...tes.org>,
	Matthias Brugger <matthias.bgg@...il.com>
CC:	Robin Murphy <robin.murphy@....com>,
	Will Deacon <will.deacon@....com>,
	Daniel Kurtz <djkurtz@...gle.com>,
	Tomasz Figa <tfiga@...gle.com>,
	Lucas Stach <l.stach@...gutronix.de>,
	Mark Rutland <mark.rutland@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	<linux-mediatek@...ts.infradead.org>,
	Sasha Hauer <kernel@...gutronix.de>,
	<srv_heupstream@...iatek.com>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<iommu@...ts.linux-foundation.org>, <pebolle@...cali.nl>,
	<arnd@...db.de>, <mitchelh@...eaurora.org>, <k.zhang@...iatek.com>,
	<youhua.li@...iatek.com>, Yong Wu <yong.wu@...iatek.com>
Subject: [PATCH v2 2/6] dt-bindings: mediatek: Add smi dts binding

This patch add smi binding document.

Signed-off-by: Yong Wu <yong.wu@...iatek.com>
---
 .../bindings/soc/mediatek/mediatek,smi-larb.txt    | 24 ++++++++++++++++++++++
 .../bindings/soc/mediatek/mediatek,smi.txt         | 22 ++++++++++++++++++++
 2 files changed, 46 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mediatek,smi-larb.txt
 create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mediatek,smi.txt

diff --git a/Documentation/devicetree/bindings/soc/mediatek/mediatek,smi-larb.txt b/Documentation/devicetree/bindings/soc/mediatek/mediatek,smi-larb.txt
new file mode 100644
index 0000000..c06c5b6
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,smi-larb.txt
@@ -0,0 +1,24 @@
+SMI(Smart Multimedia Interface) Local Arbiter
+
+The hardware block diagram please check bindings/iommu/mediatek,iommu.txt
+
+Required properties:
+- compatible : must be "mediatek,mt8173-smi-larb"
+- reg : the register and size of each local arbiter.
+- smi : must be "&smi_common". Refer to bindings/soc/mediatek,smi.txt.
+- clocks : must contain one entry for each clock-names.
+	There are 2 clockes:
+	APB clock : Advanced Peripheral Bus clock, It's the clock for setting
+		the register.
+	SMI clock : It's the clock for transfer data and command.
+- clock-name: must be "apb" and "smi".
+
+Example:
+	larb0:larb@...21000 {
+		compatible = "mediatek,mt8173-smi-larb";
+		reg = <0 0x14021000 0 0x1000>;
+		smi = <&smi_common>;
+		clocks = <&mmsys MM_SMI_LARB0>,
+			 <&mmsys MM_SMI_LARB0>;
+		clock-names = "apb", "smi";
+	};
diff --git a/Documentation/devicetree/bindings/soc/mediatek/mediatek,smi.txt b/Documentation/devicetree/bindings/soc/mediatek/mediatek,smi.txt
new file mode 100644
index 0000000..c2389b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,smi.txt
@@ -0,0 +1,22 @@
+SMI(Smart Multimedia Interface)
+
+The hardware block diagram please check bindings/iommu/mediatek,iommu.txt
+
+Required properties:
+- compatible : must be "mediatek,mt8173-smi"
+- reg : the register and size of the smi.
+- clocks : must contain one entry for each clock-names.
+	There are 2 clockes:
+	APB clock : Advanced Peripheral Bus clock, It's the clock for setting
+		the register.
+	SMI clock : It's the clock for transfer data and command.
+- clock-name: must be "apb" and "smi".
+
+Example:
+	smi_common:smi@...22000 {
+		compatible = "mediatek,mt8173-smi";
+		reg = <0 0x14022000 0 0x1000>;
+		clocks = <&mmsys MM_SMI_COMMON>,
+			 <&mmsys MM_SMI_COMMON>;
+		clock-names = "apb", "smi";
+	};
-- 
1.8.1.1.dirty

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