linux-kernel - [PATCH 2/2] crypto: mediatek - add DT bindings documentation

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Message-ID: <1480649205-52695-3-git-send-email-ryder.lee@mediatek.com>
Date:   Fri, 2 Dec 2016 11:26:45 +0800
From:   Ryder Lee <ryder.lee@...iatek.com>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Matthias Brugger <matthias.bgg@...il.com>
CC:     <devicetree@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-crypto@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Sean Wang <sean.wnag@...iatek.com>,
        Ryder Lee <ryder.lee@...iatek.com>
Subject: [PATCH 2/2] crypto: mediatek - add DT bindings documentation

Add DT bindings documentation for the crypto driver

Signed-off-by: Ryder Lee <ryder.lee@...iatek.com>
---
 .../devicetree/bindings/crypto/mediatek-crypto.txt | 32 ++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/crypto/mediatek-crypto.txt

diff --git a/Documentation/devicetree/bindings/crypto/mediatek-crypto.txt b/Documentation/devicetree/bindings/crypto/mediatek-crypto.txt
new file mode 100644
index 0000000..8b1db08
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/mediatek-crypto.txt
@@ -0,0 +1,32 @@
+MediaTek cryptographic accelerators
+
+Required properties:
+- compatible: Should be "mediatek,mt7623-crypto"
+- reg: Address and length of the register set for the device
+- interrupts: Should contain the five crypto engines interrupts in numeric
+	order. These are global system and four descriptor rings.
+- clocks: the clock used by the core
+- clock-names: the names of the clock listed in the clocks property. These are
+	"ethif", "cryp"
+- power-domains: Must contain a reference to the PM domain.
+
+
+Optional properties:
+- interrupt-parent: Should be the phandle for the interrupt controller
+  that services interrupts for this device
+
+
+Example:
+	crypto: crypto@...40000 {
+		compatible = "mediatek,mt7623-crypto";
+		reg = <0 0x1b240000 0 0x20000>;
+		interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_SPI 83 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_SPI 84 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_SPI 91 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_SPI 97 IRQ_TYPE_LEVEL_LOW>;
+		clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
+			 <&ethsys CLK_ETHSYS_CRYPTO>;
+		clock-names = "ethif","cryp";
+		power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
+	};
-- 
1.9.1