On Tue, Sep 11, 2012 at 16:54:37, ABRAHAM, KISHON VIJAY wrote:
> Hi,
>
> On Tue, Sep 11, 2012 at 3:23 PM, Vaibhav Hiremath <hvaibhav@xxxxxx> wrote:
> >
> >
> > On 9/11/2012 2:39 PM, Kishon Vijay Abraham I wrote:
> >> Added device tree support for omap musb driver and updated the
> >> Documentation with device tree binding information.
> >>
> >> Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
> >> ---
> >> Documentation/devicetree/bindings/usb/omap-usb.txt | 33 ++++++++++++
> >> drivers/usb/musb/omap2430.c | 54 ++++++++++++++++++++
> >> 2 files changed, 87 insertions(+)
> >> create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt
> >>
> >> diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt b/Documentation/devicetree/bindings/usb/omap-usb.txt
> >> new file mode 100644
> >> index 0000000..29a043e
> >> --- /dev/null
> >> +++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
> >> @@ -0,0 +1,33 @@
> >> +OMAP GLUE
> >> +
> >> +OMAP MUSB GLUE
> >> + - compatible : Should be "ti,omap4-musb" or "ti,omap3-musb"
> >> + - ti,hwmods : must be "usb_otg_hs"
> >> + - multipoint : Should be "1" indicating the musb controller supports
> >> + multipoint. This is a MUSB configuration-specific setting.
> >> + - num_eps : Specifies the number of endpoints. This is also a
> >> + MUSB configuration-specific setting. Should be set to "16"
> >> + - ram_bits : Specifies the ram address size. Should be set to "12"
> >> + - interface_type : This is a board specific setting to describe the type of
> >> + interface between the controller and the phy. It should be "0" or "1"
> >> + specifying ULPI and UTMI respectively.
> >> + - mode : Should be "3" to represent OTG. "1" signifies HOST and "2"
> >> + represents PERIPHERAL.
> >> + - power : Should be "50". This signifies the controller can supply upto
> >> + 100mA when operating in host mode.
> >> +
> >> +SOC specific device node entry
> >> +usb_otg_hs: usb_otg_hs@4a0ab000 {
> >> + compatible = "ti,omap4-musb";
> >> + ti,hwmods = "usb_otg_hs";
> >> + multipoint = <1>;
> >> + num_eps = <16>;
> >> + ram_bits = <12>;
> >> +};
> >
> >
> > reg and interrupt properties are missing here.
> >
> > I would encourage to specify "reg" and "interrupt" properties in every
> > node getting newly added to the OMAP DTS files.
>
> Sure. will add that in my next version.
>
I saw there is some discussion going-on for which baseline to use, so make
sure that you test the patches on top of below patch (already available in
linux-omap/devel-dt)
http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap.git;a=commit;h=b82b04e8eb27abe0cfe9cd7bf4fee8bb1bb9b013
Thanks,
Vaibhav
> Thanks
> Kishon
>
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