Re: [PATCH 1/5] dt/bindings: Add binding for the DA8xx MUSB driver

[Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>]

On Thu, Feb 11, 2016 at 12:01:06PM +0100, Petr Kulhavy wrote:
> This adds DT support for the TI DA8xx/OMAP-L1x/AM17xx/AM18xx MUSB driver.
> 
> Signed-off-by: Petr Kulhavy <petr-Qh/3xLP0EvwAvxtiuMwx3w@public.gmane.org>
> ---
>  .../devicetree/bindings/usb/da8xx-usb.txt          | 47 ++++++++++++++++++++++
>  1 file changed, 47 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/usb/da8xx-usb.txt
> 
> diff --git a/Documentation/devicetree/bindings/usb/da8xx-usb.txt b/Documentation/devicetree/bindings/usb/da8xx-usb.txt
> new file mode 100644
> index 0000000..62dcc51
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/da8xx-usb.txt
> @@ -0,0 +1,47 @@
> +TI DA8xx MUSB
> +~~~~~~~~~~~~~
> +For DA830 and DA850 platforms.
> +
> +Required properties:
> +~~~~~~~~~~~~~~~~~~~~
> + - compatible : Should be set to "ti,da830-musb".
> +
> + - reg: Offset and length of the USB controller register set.
> +
> + - interrupts: The USB interrupt number.
> +
> + - interrupt-names: Should be set to "mc".
> +
> + - dr_mode: The USB operation mode. Should be one of "host", "peripheral" or "otg".
> +
> + - mentor,power : Specifies the maximum current in milliamperes the controller can
> +     supply in host mode.

Still a no for me. Looks like this just sets hcd->power_budget. This 
property may not be a regulator, but ultimately the value depends on 
some regulator supplying Vbus. Also, given this has nothing to do with 
MUSB h/w, however this is described should be generic.

> +
> + - ti,phy20-refclock-frequency : Integer. Defines the USB 2.0 PHY reference clock input
> +     frequency in Hz in case the clock is generated by the internal PLL.
> +     Supported values are 12MHz, 13MHz, 19.2MHz, 20MHz, 24MHz, 26MHz, 38.4MHz, 40MHz, 48MHz
> +
> +
> +Optional properties:
> +~~~~~~~~~~~~~~~~~~~~
> + - ti,phy20-clkmux-pll: Boolean. Defines the USB 2.0 PHY reference clock source.
> +     If present the internal PLL is used as a clock source, otherwise the external
> +     USB_REFCLKIN pin is used.
> +
> +Example:
> +
> +	usb20: usb@1e00000 {
> +		compatible = "ti,da830-musb";
> +		reg =   <0x00200000 0x10000>;
> +		interrupt-parent = <&intc>;
> +		interrupts = <58>;
> +		interrupt-names = "mc";
> +
> +		dr_mode = "host";
> +		mentor,power = <500>;
> +
> +		ti,phy20-clkmux-pll;
> +		ti,phy20-refclock-frequency = <24000000>;
> +
> +		status = "okay";
> +	};
> -- 
> 1.9.1
> 
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