linux-kernel - Re: [PATCH v2 1/2] dt/bindings/usb: Add bindings for PIC32 MUSB driver.

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Date:	Thu, 7 Apr 2016 16:34:09 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Purna Chandra Mandal <purna.mandal@...rochip.com>,
	linux-kernel@...r.kernel.org
Cc:	Rob Herring <robh+dt@...nel.org>, linux-usb@...r.kernel.org,
	Joshua Henderson <digitalpeer@...italpeer.com>,
	devicetree@...r.kernel.org, Kumar Gala <galak@...eaurora.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>
Subject: Re: [PATCH v2 1/2] dt/bindings/usb: Add bindings for PIC32 MUSB
 driver.

On 4/7/2016 3:32 PM, Purna Chandra Mandal wrote:

> Document devicetree binding for the USB controller
> and USB Phy found on Microchip PIC32 class devices.
>
> Signed-off-by: Purna Chandra Mandal <purna.mandal@...rochip.com>
>
> ---
>
> Changes in v2: None
>
>   .../bindings/usb/microchip,pic32-musb.txt          | 67 ++++++++++++++++++++++
>   1 file changed, 67 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/usb/microchip,pic32-musb.txt
>
> diff --git a/Documentation/devicetree/bindings/usb/microchip,pic32-musb.txt b/Documentation/devicetree/bindings/usb/microchip,pic32-musb.txt
> new file mode 100644
> index 0000000..e1cec9d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/microchip,pic32-musb.txt
> @@ -0,0 +1,67 @@
> +Microchip PIC32 MUSB DRC/OTG controller
> +-------------------------------------------
> +
> +Required properties:
> + - compatible       : should be "microchip,pic32mzda-usb".
> + - reg              : offset and length of "MUSB Core Registers" and
> +                      "USB Clock & Reset Registers".
> + - reg-names        : should be "mc", and "usbcr" in order
> + - clocks           : clock specifier for the musb controller clock
> + - clock-names      : should be "usb_clk"
> + - interrupts       : interrupt number for MUSB Core General interrupt
> +                      and DMA interrupt
> + - interrupt-names  : must be "mc" and "dma" in order.
> + - phys             : phy specifier for the otg phy.
> + - dr_mode          : should be one of "host", "peripheral" or "otg".
> + - mentor,multipoint: Should be "1" indicating the musb controller supports
> +                      multipoint. This is MUSB configuration-specific setting.
> + - mentor,num-eps   : Specifies the number of endpoints. This is also a
> +                      MUSB configuration-specific setting. Should be set to "8".
> + - mentor,ram-bits  : Specifies the ram address size. Should be set to "11".
> + - mentor,power     : Should be "500". This signifies the controller can supply
> +                      up to 500mA when operating in host mode.
> + - phys             : phandle of the USB phy.

    Just noticed that "phys" is described twice. :-/

MBR, Sergei