On Tue, Aug 28, 2012 at 04:51:51PM +0200, Michael Grzeschik wrote:
> Hi,
>
> On Tue, Aug 28, 2012 at 02:58:27PM +0800, Richard Zhao wrote:
> > i.MX usb controllers shares non-core registers, which may include
> > SoC specific controls. We take it as a usbmisc device and usbmisc
> > driver set operations needed by ci13xxx_imx driver.
> >
> > For example, Sabrelite board has bad over-current design, we can
> > usbmisc to disable over-current detect.
> >
> > Signed-off-by: Richard Zhao <richard.zhao@xxxxxxxxxxxxx>
> > Acked-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> > ---
> > .../devicetree/bindings/usb/ci13xxx-imx.txt | 5 +
> > .../devicetree/bindings/usb/usbmisc-imx.txt | 14 ++
> > drivers/usb/chipidea/Makefile | 2 +-
> > drivers/usb/chipidea/ci13xxx_imx.c | 64 ++++++++
> > drivers/usb/chipidea/ci13xxx_imx.h | 28 ++++
> > drivers/usb/chipidea/usbmisc_imx6q.c | 162 ++++++++++++++++++++
> > 6 files changed, 274 insertions(+), 1 deletion(-)
> > create mode 100644 Documentation/devicetree/bindings/usb/usbmisc-imx.txt
> > create mode 100644 drivers/usb/chipidea/ci13xxx_imx.h
> > create mode 100644 drivers/usb/chipidea/usbmisc_imx6q.c
> >
> > diff --git a/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt b/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt
> > index 2c29041..5778b9c 100644
> > --- a/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt
> > +++ b/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt
> > @@ -7,7 +7,10 @@ Required properties:
> >
> > Optional properties:
> > - fsl,usbphy: phandler of usb phy that connects to the only one port
> > +- fsl,usbmisc: phandler of non-core register device, with one argument
> > + that indicate usb controller index
> > - vbus-supply: regulator for vbus
> > +- disable-over-current: disable over current detect
> >
> > Examples:
> > usb@02184000 { /* USB OTG */
> > @@ -15,4 +18,6 @@ usb@02184000 { /* USB OTG */
> > reg = <0x02184000 0x200>;
> > interrupts = <0 43 0x04>;
> > fsl,usbphy = <&usbphy1>;
> > + fsl,usbmisc = <&usbmisc 0>;
> > + disable-over-current;
> > };
> > diff --git a/Documentation/devicetree/bindings/usb/usbmisc-imx.txt b/Documentation/devicetree/bindings/usb/usbmisc-imx.txt
> > new file mode 100644
> > index 0000000..97ce94e
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/usb/usbmisc-imx.txt
> > @@ -0,0 +1,14 @@
> > +* Freescale i.MX non-core registers
> > +
> > +Required properties:
> > +- #index-cells: Cells used to descibe usb controller index. Should be <1>
> > +- compatible: Should be one of below:
> > + "fsl,imx6q-usbmisc" for imx6q
> > +- reg: Should contain registers location and length
> > +
> > +Examples:
> > +usbmisc@02184800 {
> > + #index-cells = <1>;
> > + compatible = "fsl,imx6q-usbmisc";
> > + reg = <0x02184800 0x200>;
> > +};
>
> i think we should have the devicetree-discuss Mailinglist in Cc: for
> that.
ccing devicetree-discuss ...
Thanks
Richard
>
> Thanks,
> Michael
>
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