On Tue, 2013-08-06 at 13:21 +0100, Pawel Moll wrote:
> On Tue, 2013-08-06 at 12:53 +0100, Ivan T. Ivanov wrote:
> > From: "Ivan T. Ivanov" <iivanov@xxxxxxxxxx>
> >
> > Signed-off-by: Ivan T. Ivanov <iivanov@xxxxxxxxxx>
>
> The same comment as for the RFC 1/2 here...
Will fix this.
>
> > .../devicetree/bindings/usb/msm-ssusb.txt | 39 +++++
> > drivers/usb/dwc3/Kconfig | 8 +
> > drivers/usb/dwc3/Makefile | 1 +
> > drivers/usb/dwc3/dwc3-msm.c | 175 ++++++++++++++++++++
> > 4 files changed, 223 insertions(+)
> > create mode 100644 drivers/usb/dwc3/dwc3-msm.c
> >
> > diff --git a/Documentation/devicetree/bindings/usb/msm-ssusb.txt b/Documentation/devicetree/bindings/usb/msm-ssusb.txt
> > index 550b496..313ae0d 100644
> > --- a/Documentation/devicetree/bindings/usb/msm-ssusb.txt
> > +++ b/Documentation/devicetree/bindings/usb/msm-ssusb.txt
> > @@ -22,6 +22,23 @@ Required "supply-name" examples are:
> > "v1p8" : 1.8v supply for SS-PHY
> > "vddcx" : vdd supply for SS-PHY digital circuit operation
> >
> > +Required properties :
> > +- compatible : should be "qcom,dwc-usb3-msm"
> > +- reg : offset and length of the register set in the memory map
> > + offset and length of the TCSR register for routing USB
> > + signals to either picoPHY0 or picoPHY1.
> > +- clocks = <&usb30_master_cxc>, <&sys_noc_usb3_axi_cxc>, <&usb30_sleep_cxc>, <&usb30_mock_utmi_cxc>;
> > +- clock-names = "core_clk", "iface_clk", "sleep_clk", "utmi_clk";
> > +
> > +Optional properties :
> > +- gdsc-supply : phandle to the globally distributed switch controller
> > + regulator node to the USB controller.
> > +
> > +Sub nodes:
> > +- Sub node for "DWC3- USB3 controller".
> > + This sub node is required property for device node. The properties of this subnode
> > + are specified in dwc3.txt.
>
> Ah, this answers one of my questions - DWC3 comes from Synopsys.
Yes, sorry.
>
> > Example device nodes:
> >
> > dwc3_usb2: phy@f92f8800 {
> > @@ -47,3 +64,25 @@ Example device nodes:
> > vddcx-supply = <&supply>;
> > v1p8-supply = <&supply>;
> > };
> > +
> > + usb@fd4ab000 {
> > + compatible = "qcom,dwc-usb3-msm";
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + reg = <0xfd4ab000 0x4>;
> > +
> > + clocks = <&usb30_master_cxc>, <&sys_noc_usb3_axi_cxc>, <&usb30_sleep_cxc>, <&usb30_mock_utmi_cxc>;
> > + clock-names = "core_clk", "iface_clk", "sleep_clk", "utmi_clk";
> > +
> > + gdsc-supply = <&supply>;
> > + ranges;
> > +
> > + dwc3@f9200000 {
> > + compatible = "snps,dwc3";
>
> Note that the Documentation/devicetree/bindings/usb/dwc3.txt is
> mentioning "synopsys,dwc3" (which is clearly in opposition to the
> vendor-prefixes.txt file) and this compatible value is used in the
> drivers/usb/dwc3/core.c and omap5.dtsi. Unless it has been already fixed
> recently, could you take care of that?
Yes, it is fixed already. Patch is in linux-next
"usb: dwc3: core: switch to snps,dwc3"
>
> > + reg = <0xf9200000 0xcd00>;
> > + interrupts = <0 131 0>;
> > + interrupt-names = "irq";
> > + usb-phy = <&dwc3_usb2>, <&dwc3_usb3>;
> > + tx-fifo-resize;
> > + };
> > + };
>
> And now I'm really confused... Maybe it's just lack of documentation...
>
> How does the "qcom,dwc-usb3-msm" relate to "qcom,dwc-usb3"?
Not sure from where you get this "qcom,dwc-usb3", but now I think
that "qcom,dwc-usb3" should be enough for compatible.
Thanks,
Ivan
>
> Paweł
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