[PATCH v3 3/6] dt-bindings: usb: dwc3-imx8mp: add imx8mp dwc3 glue bindings
Jun Li
jun.li at nxp.com
Tue Sep 22 12:45:27 EDT 2020
> -----Original Message-----
> From: Krzysztof Kozlowski <krzk at kernel.org>
> Sent: Tuesday, September 22, 2020 10:33 PM
> To: Jun Li <jun.li at nxp.com>
> Cc: robh+dt at kernel.org; shawnguo at kernel.org; balbi at kernel.org;
> mathias.nyman at intel.com; gregkh at linuxfoundation.org;
> s.hauer at pengutronix.de; kernel at pengutronix.de; festevam at gmail.com;
> dl-linux-imx <linux-imx at nxp.com>; Anson Huang <anson.huang at nxp.com>;
> Aisheng Dong <aisheng.dong at nxp.com>; Peng Fan <peng.fan at nxp.com>; Andy Duan
> <fugang.duan at nxp.com>; Joakim Zhang <qiangqing.zhang at nxp.com>; Horia
> Geanta <horia.geanta at nxp.com>; linux-usb at vger.kernel.org;
> devicetree at vger.kernel.org; linux-arm-kernel at lists.infradead.org
> Subject: Re: [PATCH v3 3/6] dt-bindings: usb: dwc3-imx8mp: add imx8mp dwc3
> glue bindings
>
> On Tue, 22 Sep 2020 at 12:56, Li Jun <jun.li at nxp.com> wrote:
> >
> > NXP imx8mp integrates 2 dwc3 3.30b IP and add some wakeup logic to
> > support low power mode, the glue layer is for this wakeup
> > functionality, which has a separated interrupt, can support wakeup
> > from U3 and connect events for host, and vbus wakeup for device.
> >
> > Signed-off-by: Li Jun <jun.li at nxp.com>
> > ---
> > .../devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml | 99
> ++++++++++++++++++++++
> > 1 file changed, 99 insertions(+)
> >
> > diff --git
> > a/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml
> > b/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml
> > new file mode 100644
> > index 0000000..a5d5566
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml
> > @@ -0,0 +1,99 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) # Copyright
> > +(c) 2020 NXP %YAML 1.2
> > +---
> > +$id:
> >
> +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> >
> +cetree.org%2Fschemas%2Fusb%2Ffsl%2Cimx8mp-dwc3.yaml%23&data=02%7C
> >
> +01%7Cjun.li%40nxp.com%7Ceaedeb64ec15472183d108d85f046841%7C686ea1d3bc
> >
> +2b4c6fa92cd99c5c301635%7C0%7C0%7C637363819819667936&sdata=IvFQ8l0
> > +7VXUMbG8riyITSTZb1P50oIXs%2BkAV%2FeX8ntk%3D&reserved=0
> > +$schema:
> >
> +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> >
> +cetree.org%2Fmeta-schemas%2Fcore.yaml%23&data=02%7C01%7Cjun.li%40
> >
> +nxp.com%7Ceaedeb64ec15472183d108d85f046841%7C686ea1d3bc2b4c6fa92cd99c
> >
> +5c301635%7C0%7C0%7C637363819819677934&sdata=H3%2BcwgiLKBynHv4N%2F
> > +dogBi3SwaizVHmqieJXVrErv0I%3D&reserved=0
> > +
> > +title: NXP iMX8MP Soc USB Controller
> > +
> > +maintainers:
> > + - Li Jun <jun.li at nxp.com>
> > +
> > +properties:
> > + compatible:
> > + items:
>
> Items are not necessary
>
>
> > + - const: fsl,imx8mp-dwc3
> > +
> > + reg:
> > + maxItems: 1
> > + description: Address and length of the register set for the wrapper
> of
> > + dwc3 core on the SOC.
> > +
> > + "#address-cells":
> > + enum: [ 1, 2 ]
> > +
> > + "#size-cells":
> > + enum: [ 1, 2 ]
> > +
> > + ranges: true
> > +
> > + interrupts:
> > + maxItems: 1
> > + description: The interrupt that is asserted when a wakeup event is
> > + received.
> > +
> > + clocks:
> > + description:
> > + A list of phandle and clock-specifier pairs for the clocks
> > + listed in clock-names.
> > + items:
> > + - description: system hsio root clock.
> > + - description: suspend clock, used for usb wakeup logic.
> > +
> > + clock-names:
> > + items:
> > + - const: hsio
> > + - const: suspend
> > +
> > +# Required child node:
> > +
> > +patternProperties:
> > + "^dwc3@[0-9a-f]+$":
> > + type: object
> > + description:
> > + A child node must exist to represent the core DWC3 IP block
> > + The content of the node is defined in dwc3.txt.
> > +
> > +required:
> > + - compatible
> > + - reg
> > + - "#address-cells"
> > + - "#size-cells"
> > + - ranges
> > + - clocks
> > + - clock-names
> > + - interrupts
> > +
> > +additionalProperties: false
>
> Do you actually validate your DTS changes with this schema? They do not look
> like passing the validation...
I did run dt_binding_check, maybe I missed some errors as there are always some other
failures, I will re-run to double check.
Li Jun
>
> Best regards,
> Krzysztof
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