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Message-ID: <570661D1.60808@cogentembedded.com>
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
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