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SubjectRE: [EXT] Re: [PATCH V2 1/6] dt-bindings: usb: usbmisc-imx: convert to DT schema
Date
Hi Krzysztof,

> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Sent: Saturday, October 15, 2022 10:53 PM
> To: Peng Fan (OSS) <peng.fan@oss.nxp.com>; gregkh@linuxfoundation.org; robh+dt@kernel.org;
> krzysztof.kozlowski+dt@linaro.org; shawnguo@kernel.org; s.hauer@pengutronix.de; Xu Yang <xu.yang_2@nxp.com>
> Cc: kernel@pengutronix.de; festevam@gmail.com; dl-linux-imx <linux-imx@nxp.com>; linux-usb@vger.kernel.org;
> devicetree@vger.kernel.org; linux-kernel@vger.kernel.org; linux-arm-kernel@lists.infradead.org; Jun Li <jun.li@nxp.com>;
> Peng Fan <peng.fan@nxp.com>
> Subject: [EXT] Re: [PATCH V2 1/6] dt-bindings: usb: usbmisc-imx: convert to DT schema
>
> Caution: EXT Email
>
> On 14/10/2022 05:51, Peng Fan (OSS) wrote:
> > From: Peng Fan <peng.fan@nxp.com>
> >
> > Convert usbmisc-imx to DT schema format.
> >
> > Signed-off-by: Peng Fan <peng.fan@nxp.com>
> > ---
> > .../devicetree/bindings/usb/fsl,usbmisc.yaml | 52 +++++++++++++++++++
> > .../devicetree/bindings/usb/usbmisc-imx.txt | 18 -------
> > 2 files changed, 52 insertions(+), 18 deletions(-)
> > create mode 100644 Documentation/devicetree/bindings/usb/fsl,usbmisc.yaml
> > delete mode 100644 Documentation/devicetree/bindings/usb/usbmisc-imx.txt
> >
> > diff --git a/Documentation/devicetree/bindings/usb/fsl,usbmisc.yaml
> b/Documentation/devicetree/bindings/usb/fsl,usbmisc.yaml
> > new file mode 100644
> > index 000000000000..c83ffb6729b5
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/usb/fsl,usbmisc.yaml
> > @@ -0,0 +1,52 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id:
> https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevicetree.org%2Fschemas%2Fusb%2Ffsl%2Cusbmi
> sc.yaml%23&amp;data=05%7C01%7Cxu.yang_2%40nxp.com%7C24e82b830d9f47018ff408daaebcf83d%7C686ea1d3bc2b4c6
> fa92cd99c5c301635%7C0%7C0%7C638014423898086337%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi
> V2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=gNwMbGsiuMS1zgvbgATYAY70gv2nIhX%2F
> 16IxiSYBf3s%3D&amp;reserved=0
> > +$schema: https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevicetree.org%2Fmeta-
> schemas%2Fcore.yaml%23&amp;data=05%7C01%7Cxu.yang_2%40nxp.com%7C24e82b830d9f47018ff408daaebcf83d%7C68
> 6ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C638014423898242035%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjA
> wMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=jJUP5aKNkfkAefhNQL9almV
> Gqzn8cTNyjcRlZMOZwRk%3D&amp;reserved=0
> > +
> > +title: Freescale i.MX non-core registers
>
> You sent v2 before we finished this topic. Is it correct? Even if TXT
> had such title, let's don't keep the wrong name.
>
> If it is non-core registers, why it is in USB? Why it is an usb-misc device?

The chipidea's doc has a more clear explanation about core and non-core
registers as follow:

"There are two kinds of registers in the USB module: USB core registers
and USB non-core registers. USB core registers are used to control USB
core functions, and more independent of USB features. Each USB controller
core has its own core registers. USB non-core registers are additional
to USB core registers, and more dependent on USB features. i.MX series
products vary in non-core registers."

So we have named it like this.

Thanks,
Xu Yang

>
> > +
> > +maintainers:
> > + - Xu Yang <xu.yang_2@nxp.com>
> > +
>
> Best regards,
> Krzysztof

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