linux-kernel - Re: [PATCH v2 4/8] dt-bindings: usb: dwc3: Add Amlogic G12A DWC3 Glue Bindings

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Date:   Tue, 12 Mar 2019 13:29:17 -0500
From:   Rob Herring <robh@...nel.org>
To:     Neil Armstrong <narmstrong@...libre.com>
Cc:     gregkh@...uxfoundation.org, hminas@...opsys.com, balbi@...nel.org,
        kishon@...com, devicetree@...r.kernel.org,
        Neil Armstrong <narmstrong@...libre.com>,
        linux-amlogic@...ts.infradead.org, linux-usb@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/8] dt-bindings: usb: dwc3: Add Amlogic G12A DWC3
 Glue Bindings

On Mon,  4 Mar 2019 11:38:42 +0100, Neil Armstrong wrote:
> Adds the bindings for the Amlogic G12A USB Glue HW.
> 
> The Amlogic G12A SoC Family embeds 2 USB Controllers :
> - a DWC3 IP configured as Host for USB2 and USB3
> - a DWC2 IP configured as Peripheral USB2 Only
> 
> A glue connects these both controllers to 2 USB2 PHYs,
> and optionnally to an USB3+PCIE Combo PHY shared with the PCIE controller.
> 
> The Glue configures the UTMI 8bit interfaces for the USB2 PHYs, including
> routing of the OTG PHY between the DWC3 and DWC2 controllers, and
> setups the on-chip OTG mode selection for this PHY.
> 
> The PHYs phandles are passed  to the Glue node since the Glue controls the
> interface with the PHY, not the DWC3 controller.
> 
> Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
> ---
>  .../devicetree/bindings/usb/amlogic,dwc3.txt  | 88 +++++++++++++++++++
>  1 file changed, 88 insertions(+)
> 

Reviewed-by: Rob Herring <robh@...nel.org>