linux-kernel - Re: [PATCH v2 0/2] USB SS PHY for Qualcomm's QCS404

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Date:   Wed, 30 Jan 2019 13:58:04 -0600
From:   Rob Herring <robh@...nel.org>
To:     Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@...aro.org>
Cc:     gregkh@...uxfoundation.org, mark.rutland@....com, kishon@...com,
        jackp@...eaurora.org, andy.gross@...aro.org, swboyd@...omium.org,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-usb@...r.kernel.org, khasim.mohammed@...aro.org,
        linux-kernel@...r.kernel.org, bjorn.andersson@...aro.org,
        vkoul@...nel.org, shawn.guo@...aro.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 0/2] USB SS PHY for Qualcomm's QCS404

On Tue, Jan 29, 2019 at 12:35:13PM +0100, Jorge Ramirez-Ortiz wrote:
> This set adds USB SS PHY support to Qualcomm's QCS404 SoC
> The PHY is implemented using Synopsys SS PHY 1.0.0 IP
> 
> The code is losely based on Sriharsha Allenki's
> <sallenki@...eaurora.org> original implementation.
> 
> v2:
>   enable OTG mode detection
>   move vdd voltage levels to driver
>   use bulk_ control interfaces
>   ss-phy-bindings [1]
> 
> [1] ss-phy-binding discussion:
>  - qcom,dwc3-ss-usb-phy exist for a generic usb2/usb3 phy driver that
>  was never merged. Rather than trying to re-use these bindings (or
>  delete them) I  propose that we go ahead with the new separate
>  bindings for HS and SS: if  not now - investigation  in progress- in
>  the  future  it might be  possible to have again a common phy driver
>  for  which these old  bindings would be the binding agreement. 

Either use/extend the old binding or remove it if it is not being used.

Rob