linux-kernel - [PATCH 1/6] dt-bindings: Add usb3.0 phy binding for MT65xx SoCs

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Message-ID: <1432727283-20303-2-git-send-email-chunfeng.yun@mediatek.com>
Date:	Wed, 27 May 2015 19:47:58 +0800
From:	<chunfeng.yun@...iatek.com>
To:	Mathias Nyman <mathias.nyman@...el.com>
CC:	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Felipe Balbi <balbi@...com>,
	Chunfeng Yun <chunfeng.yun@...iatek.com>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-usb@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>
Subject: [PATCH 1/6] dt-bindings: Add usb3.0 phy binding for MT65xx SoCs

From: Chunfeng Yun <chunfeng.yun@...iatek.com>

add a DT binding documentation of usb3.0 phy for MT65xx
SoCs from Mediatek.

Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
---
 .../devicetree/bindings/usb/mt65xx-u3phy.txt       | 37 ++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/mt65xx-u3phy.txt

diff --git a/Documentation/devicetree/bindings/usb/mt65xx-u3phy.txt b/Documentation/devicetree/bindings/usb/mt65xx-u3phy.txt
new file mode 100644
index 0000000..b0b91b0
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/mt65xx-u3phy.txt
@@ -0,0 +1,37 @@
+MT65xx U3PHY
+
+The device node for Mediatek SOC usb3.0 phy
+
+Required properties:
+ - compatible : Should be "mediatek,mt8173-u3phy"
+ - reg        : Offset and length of registers, the first is for mac domain,
+	another for phy domain
+ - power-domains: to enable usb's mtcmos
+ - reg-vusb33-supply:  regulator of usb avdd3.3v
+ - clocks     : must support all clocks that phy need
+ - clock-names: should be "wakeup_deb_p0", "wakeup_deb_p1" for wakeup
+	debounce control clocks, "sys_mac" for sys and mac clocks and
+	"u3phya_ref" for u3phya reference clock.
+
+Optional properties:
+ - disable-usb2-p1 : disable port1 of usb2.0 which has two ports.
+ - reg-p1-vbus-supply : regulator of port1's vbus;
+
+Example:
+
+u3phy: usb-phy@...71000 {
+	compatible = "mediatek,mt8173-u3phy";
+	reg = <0 0x11271000 0 0x3000>,
+	      <0 0x11280000 0 0x20000>;
+	power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
+	reg-vusb33-supply = <&mt6397_usb_reg>;
+	clocks = <&perisys PERI_USB0>,
+		 <&perisys PERI_USB1>,
+		 <&topckgen CLK_TOP_USB30_SEL>,
+		 <&apmixedsys CLK_APMIXED_REF2USB_TX>;
+	clock-names = "wakeup_deb_p0",
+		      "wakeup_deb_p1",
+		      "sys_mac",
+		      "u3phya_ref";
+	disable-usb2-p1;
+};
-- 
1.8.1.1.dirty

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