From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>,
Mathias Nyman <mathias.nyman@intel.com>,
Alan Stern <stern@rowland.harvard.edu>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Matthias Brugger <matthias.bgg@gmail.com>,
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>,
Pawel Moll <pawel.moll@arm.com>,
Kumar Gala <galak@codeaurora.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Linus Walleij <linus.walleij@linaro.org>,
Chunfeng Yun <chunfeng.yun@mediatek.com>,
Biao Huang <biao.huang@mediatek.com>, <linux-usb@vger.kernel.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
<linux-gpio@vger.kernel.org>
Subject: [PATCH 3/6] dt-bindings: mtu3: add devicetree bindings
Date: Tue, 10 May 2016 16:23:31 +0800 [thread overview]
Message-ID: <1462868614-20602-4-git-send-email-chunfeng.yun@mediatek.com> (raw)
In-Reply-To: <1462868614-20602-1-git-send-email-chunfeng.yun@mediatek.com>
add a DT binding doc for MediaTek USB3 DRD driver
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
Documentation/devicetree/bindings/usb/mtu3.txt | 86 ++++++++++++++++++++++++
1 file changed, 86 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/mtu3.txt
diff --git a/Documentation/devicetree/bindings/usb/mtu3.txt b/Documentation/devicetree/bindings/usb/mtu3.txt
new file mode 100644
index 0000000..ff142a5
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/mtu3.txt
@@ -0,0 +1,86 @@
+The device node for Mediatek USB3.0 DRD controller
+
+Required properties:
+ - compatible : should be "mediatek,mt8173-mtu3"
+ - reg : specifies physical base address and size of the registers
+ - reg-names: should be "mac" for device IP and "ippc" for IP port control
+ - interrupts : interrupt used by the device IP
+ - power-domains : a phandle to USB power domain node to control USB's
+ mtcmos
+ - vusb33-supply : regulator of USB avdd3.3v
+ - clocks : a list of phandle + clock-specifier pairs, one for each
+ entry in clock-names
+ - clock-names : must contain "sys_ck" for clock of controller;
+ "wakeup_deb_p0" and "wakeup_deb_p1" are optional, they are
+ depends on "mediatek,enable-wakeup"
+ - phys : a list of phandle + phy specifier pairs
+ - dr_mode : should be one of "host", "peripheral" or "otg",
+ refer to usb/generic.txt
+
+Optional properties:
+ - #address-cells, #size-cells : should be '2' if the device has sub-nodes
+ with 'reg' property
+ - ranges : allows valid 1:1 translation between child's address space and
+ parent's address space
+ - extcon : external connector for vbus and idpin changes detection, needed
+ when supports dual-role mode.
+ - vbus-supply : reference to the VBUS regulator, needed when supports
+ dual-role mode.
+ - pinctl-names : a pinctrl state named "default" must be defined,
+ "id_float" and "id_ground" are optinal which depends on
+ "mediatek,enable-manual-drd"
+ - pinctrl-0 : pin control group
+ See: Documentation/devicetree/bindings/pinctrl/pinctrl-binding.txt
+
+ - maximum-speed : valid arguments are "super-speed", "high-speed" and
+ "full-speed"; refer to usb/generic.txt
+ - mediatek,enable-wakeup : supports ip sleep wakeup used by host mode
+ - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup
+ control register, it depends on "mediatek,enable-wakeup".
+ - mediatek,enable-manual-drd : supports manual dual-role switch by sysfs
+ interface; only used when receptacle is TYPE-A and also wants to support
+ dual-role mode.
+
+Sub-nodes:
+The xhci should be added as subnode to mtu3 as shown in the following example
+if host mode is enabled. The DT binding details of xhci can be found in:
+Documentation/devicetree/bindings/usb/mt8173-xhci.txt
+
+Example:
+ssusb: usb@11271000 {
+ compatible = "mediatek,mt8173-mtu3";
+ reg = <0 0x11271000 0 0x3000>,
+ <0 0x11280700 0 0x0100>;
+ reg-names = "mac", "ippc";
+ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_LOW>;
+ phys = <&phy_port0 PHY_TYPE_USB3>,
+ <&phy_port1 PHY_TYPE_USB2>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
+ clocks = <&topckgen CLK_TOP_USB30_SEL>,
+ <&pericfg CLK_PERI_USB0>,
+ <&pericfg CLK_PERI_USB1>;
+ clock-names = "sys_ck",
+ "wakeup_deb_p0",
+ "wakeup_deb_p1";
+ vusb33-supply = <&mt6397_vusb_reg>;
+ vbus-supply = <&usb_p0_vbus>;
+ extcon = <&extcon_usb>;
+ dr_mode = "otg";
+ mediatek,enable-wakeup;
+ mediatek,syscon-wakeup = <&pericfg>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+ status = "disabled";
+
+ usb_host: xhci@11270000 {
+ compatible = "mediatek,mt8173-xhci";
+ reg = <0 0x11270000 0 0x1000>;
+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_LOW>;
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
+ clocks = <&topckgen CLK_TOP_USB30_SEL>;
+ clock-names = "sys_ck";
+ vusb33-supply = <&mt6397_vusb_reg>;
+ status = "disabled";
+ };
+};
--
1.7.9.5
next prev parent reply other threads:[~2016-05-10 8:27 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-10 8:23 Add MediaTek USB3 DRD Driver Chunfeng Yun
2016-05-10 8:23 ` [PATCH 1/6] dt-bindings: mt8173-xhci: support host side of dual-role mode Chunfeng Yun
2016-05-10 8:23 ` [PATCH 2/6] usb: xhci-mtk: make IPPC register optional Chunfeng Yun
2016-05-10 8:23 ` Chunfeng Yun [this message]
2016-05-11 14:54 ` [PATCH 3/6] dt-bindings: mtu3: add devicetree bindings Rob Herring
2016-05-12 7:24 ` chunfeng yun
2016-05-12 23:02 ` Alan Cooper
2016-05-13 2:00 ` chunfeng yun
2016-05-13 3:09 ` Rob Herring
2016-05-13 3:19 ` chunfeng yun
2016-05-10 8:23 ` [PATCH 4/6] usb: Add MediaTek USB3 DRD Driver Chunfeng Yun
2016-05-10 8:23 ` [PATCH 5/6] arm64: dts: mediatek: add USB3 DRD driver Chunfeng Yun
2016-05-10 8:23 ` [PATCH 6/6] pinctrl: mt8173: set GPIO16 to usb iddig mode Chunfeng Yun
2016-05-11 11:56 ` Linus Walleij
2016-05-11 18:32 ` Hongzhou Yang
2016-05-12 1:41 ` chunfeng yun
2016-05-12 2:09 ` Hongzhou Yang
2016-05-12 2:55 ` Hongzhou Yang
2016-05-24 10:58 ` Linus Walleij
2016-11-23 18:32 ` Matthias Brugger
2016-12-01 0:43 ` Hongzhou Yang
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