Re: [PATCH 6/6] dt-bindings: usb: ci-hdrc-usb2: Add more phy tuning properties

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On Wed, Oct 12, 2022 at 11:08:06AM -0500, Rob Herring wrote:
> On Tue, Oct 11, 2022 at 10:29:24AM +0200, Sascha Hauer wrote:
> > Following the example of samsung,picophy-dc-vol-level-adjust more
> > phy tuning properties are added for configuring the remaining bitfields
> > in the USBNC_n_PHY_CFG1 register.
> 
> All these properties really doesn't scale. These properties should go 
> in the phy node as they are properties or the phy. There's no rule that 
> you can only read properties from the driver's device node.

I understand and agree.

On i.MX8M we currently use the usb-nop-xceiv. I guess it's not an option
to just add these properties there, so we'll need a phy node with a new
compatible like fsl,imx8mm-usbphy. The driver would basically just
register a usb-nop-xceiv and the node would be a container for the new
property. Does this sound sane?

Sascha

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