linux-kernel - [PATCH v4 2/6] dt-bindings: mediatek: Add smi dts binding

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Date:	Mon, 3 Aug 2015 18:21:15 +0800
From:	Yong Wu <yong.wu@...iatek.com>
To:	Joerg Roedel <joro@...tes.org>,
	Thierry Reding <treding@...dia.com>,
	Mark Rutland <mark.rutland@....com>,
	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>,
	Rob Herring <robh+dt@...nel.org>,
	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>,
	<youhua.li@...iatek.com>, <k.zhang@...iatek.com>,
	<frederic.chen@...iatek.com>, Yong Wu <yong.wu@...iatek.com>
Subject: [PATCH v4 2/6] dt-bindings: mediatek: Add smi dts binding

This patch add smi binding document.

Signed-off-by: Yong Wu <yong.wu@...iatek.com>
---
 .../memory-controllers/mediatek,smi-larb.txt       | 25 ++++++++++++++++++++++
 .../bindings/memory-controllers/mediatek,smi.txt   | 24 +++++++++++++++++++++
 2 files changed, 49 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/mediatek,smi.txt

diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
new file mode 100644
index 0000000..55ff3b7
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
@@ -0,0 +1,25 @@
+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 this local arbiter.
+- mediatek,smi : a phandle to the smi_common node.
+- power-domains : a phandle to the power domain of this local arbiter.
+- clocks : Must contain an entry for each entry in clock-names.
+- clock-names: must contain 2 entries, as follows:
+  - "apb" : Advanced Peripheral Bus clock, It's the clock for setting
+	    the register.
+  - "smi" : It's the clock for transfer data and command.
+
+Example:
+	larb1: larb@...10000 {
+		compatible = "mediatek,mt8173-smi-larb";
+		reg = <0 0x16010000 0 0x1000>;
+		mediatek,smi = <&smi_common>;
+		power-domains = <&scpsys MT8173_POWER_DOMAIN_VDEC>;
+		clocks = <&vdecsys CLK_VDEC_CKEN>,
+			 <&vdecsys CLK_VDEC_LARB_CKEN>;
+		clock-names = "apb", "smi";
+	};
diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi.txt b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi.txt
new file mode 100644
index 0000000..f54e91c
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi.txt
@@ -0,0 +1,24 @@
+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 block.
+- power-domains : a phandle to the power domain of this local arbiter.
+- clocks : Must contain an entry for each entry in clock-names.
+- clock-names : must contain 2 entries, as follows:
+  - "apb" : Advanced Peripheral Bus clock, It's the clock for setting
+	    the register.
+  - "smi" : It's the clock for transfer data and command.
+  They may be the same if both source clock are the same.
+
+Example:
+	smi_common: smi@...22000 {
+		compatible = "mediatek,mt8173-smi";
+		reg = <0 0x14022000 0 0x1000>;
+		power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
+		clocks = <&mmsys CLK_MM_SMI_COMMON>,
+			 <&mmsys CLK_MM_SMI_COMMON>;
+		clock-names = "apb", "smi";
+	};
-- 
1.8.1.1.dirty

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