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[PATCH v12 1/3] dt-bindings: Add a binding for Mediatek xHCI host controller

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  [PATCH v12 1/3] dt-bindings: Add a binding for Mediatek xHCI host controller Chunfeng Yun <chunfeng.yun@mediatek.com> - 2015-11-17 10:20 +0100
    Re: [PATCH v12 1/3] dt-bindings: Add a binding for Mediatek xHCI host  controller Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2015-11-17 12:00 +0100
      Re: [PATCH v12 1/3] dt-bindings: Add a binding for Mediatek xHCI  host controller chunfeng yun <chunfeng.yun@mediatek.com> - 2015-11-19 04:40 +0100

#1270993 — [PATCH v12 1/3] dt-bindings: Add a binding for Mediatek xHCI host controller

add a DT binding documentation of xHCI host controller for the
MT8173 SoC from Mediatek.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
 .../devicetree/bindings/usb/mt8173-xhci.txt        | 51 ++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/mt8173-xhci.txt

diff --git a/Documentation/devicetree/bindings/usb/mt8173-xhci.txt b/Documentation/devicetree/bindings/usb/mt8173-xhci.txt
new file mode 100644
index 0000000..a78f20b
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/mt8173-xhci.txt
@@ -0,0 +1,51 @@
+MT8173 xHCI
+
+The device node for Mediatek SOC USB3.0 host controller
+
+Required properties:
+ - compatible : should contain "mediatek,mt8173-xhci"
+ - reg : specifies physical base address and size of the registers,
+	the first one for MAC, the second for IPPC
+ - interrupts : interrupt used by the controller
+ - 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 xHCI MAC
+	"wakeup_deb_p0": for USB wakeup debounce clock of port0
+	"wakeup_deb_p0": for USB wakeup debounce clock of port1
+
+ - phys : a list of phandle + phy specifier pairs
+
+Optional properties:
+ - mediatek,wakeup-src : 1: ip sleep wakeup mode; 2: line state wakeup
+	mode;
+ - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup
+	control register, it depends on "mediatek,wakeup-src".
+ - vbus-supply : reference to the VBUS regulator;
+ - usb3-lpm-capable : supports USB3.0 LPM
+
+Example:
+usb30: usb@11270000 {
+	compatible = "mediatek,mt8173-xhci";
+	reg = <0 0x11270000 0 0x1000>,
+	      <0 0x11280700 0 0x0100>;
+	interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_LOW>;
+	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";
+	phys = <&phy_port0 PHY_TYPE_USB3>,
+	       <&phy_port1 PHY_TYPE_USB2>;
+	vusb33-supply = <&mt6397_vusb_reg>;
+	vbus-supply = <&usb_p1_vbus>;
+	usb3-lpm-capable;
+	mediatek,syscon-wakeup = <&pericfg>;
+	mediatek,wakeup-src = <1>;
+};
-- 
1.8.1.1.dirty

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#1271068 — Re: [PATCH v12 1/3] dt-bindings: Add a binding for Mediatek xHCI host controller

Hello.

On 11/17/2015 12:18 PM, Chunfeng Yun wrote:

> add a DT binding documentation of xHCI host controller for the
> MT8173 SoC from Mediatek.
>
> Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
> ---
>   .../devicetree/bindings/usb/mt8173-xhci.txt        | 51 ++++++++++++++++++++++
>   1 file changed, 51 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/usb/mt8173-xhci.txt
>
> diff --git a/Documentation/devicetree/bindings/usb/mt8173-xhci.txt b/Documentation/devicetree/bindings/usb/mt8173-xhci.txt
> new file mode 100644
> index 0000000..a78f20b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/mt8173-xhci.txt
> @@ -0,0 +1,51 @@
> +MT8173 xHCI
> +
> +The device node for Mediatek SOC USB3.0 host controller
> +
> +Required properties:
> + - compatible : should contain "mediatek,mt8173-xhci"
> + - reg : specifies physical base address and size of the registers,
> +	the first one for MAC, the second for IPPC
> + - interrupts : interrupt used by the controller
> + - power-domains : a phandle to USB power domain node to control USB's
> +	mtcmos

    What's that?

> + - 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 xHCI MAC
> +	"wakeup_deb_p0": for USB wakeup debounce clock of port0
> +	"wakeup_deb_p0": for USB wakeup debounce clock of port1

    "wakeup_deb_p1"?

> +
> + - phys : a list of phandle + phy specifier pairs
> +
> +Optional properties:
> + - mediatek,wakeup-src : 1: ip sleep wakeup mode; 2: line state wakeup
                                ^^ IP?

> +	mode;
> + - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup
> +	control register, it depends on "mediatek,wakeup-src".
> + - vbus-supply : reference to the VBUS regulator;
> + - usb3-lpm-capable : supports USB3.0 LPM

[...]

MBR, Sergei

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#1272796 — Re: [PATCH v12 1/3] dt-bindings: Add a binding for Mediatek xHCI host controller

Hi,
On Tue, 2015-11-17 at 13:58 +0300, Sergei Shtylyov wrote:
> Hello.
> 
> On 11/17/2015 12:18 PM, Chunfeng Yun wrote:
> 
> > add a DT binding documentation of xHCI host controller for the
> > MT8173 SoC from Mediatek.
> >
> > Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
> > ---
> >   .../devicetree/bindings/usb/mt8173-xhci.txt        | 51 ++++++++++++++++++++++
> >   1 file changed, 51 insertions(+)
> >   create mode 100644 Documentation/devicetree/bindings/usb/mt8173-xhci.txt
> >
> > diff --git a/Documentation/devicetree/bindings/usb/mt8173-xhci.txt b/Documentation/devicetree/bindings/usb/mt8173-xhci.txt
> > new file mode 100644
> > index 0000000..a78f20b
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/usb/mt8173-xhci.txt
> > @@ -0,0 +1,51 @@
> > +MT8173 xHCI
> > +
> > +The device node for Mediatek SOC USB3.0 host controller
> > +
> > +Required properties:
> > + - compatible : should contain "mediatek,mt8173-xhci"
> > + - reg : specifies physical base address and size of the registers,
> > +	the first one for MAC, the second for IPPC
> > + - interrupts : interrupt used by the controller
> > + - power-domains : a phandle to USB power domain node to control USB's
> > +	mtcmos
> 
>     What's that?
It works as a gateway in fact which can turn on/off usb power
> 
> > + - 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 xHCI MAC
> > +	"wakeup_deb_p0": for USB wakeup debounce clock of port0
> > +	"wakeup_deb_p0": for USB wakeup debounce clock of port1
> 
>     "wakeup_deb_p1"?
Yes, it's a typo
> 
> > +
> > + - phys : a list of phandle + phy specifier pairs
> > +
> > +Optional properties:
> > + - mediatek,wakeup-src : 1: ip sleep wakeup mode; 2: line state wakeup
>                                 ^^ IP?
Ok
> 
> > +	mode;
> > + - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup
> > +	control register, it depends on "mediatek,wakeup-src".
> > + - vbus-supply : reference to the VBUS regulator;
> > + - usb3-lpm-capable : supports USB3.0 LPM
> 
> [...]
> 
> MBR, Sergei
> 


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