linux-kernel - Re: [PATCH v2 3/4] Documentation: bindings: add phy

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Message-ID: <20180511144305.GP33053@art_vandelay>
Date:   Fri, 11 May 2018 10:43:05 -0400
From:   Sean Paul <seanpaul@...omium.org>
To:     Lin Huang <hl@...k-chips.com>
Cc:     seanpaul@...omium.org, airlied@...ux.ie, zyw@...k-chips.com,
        dianders@...omium.org, briannorris@...omium.org,
        linux-rockchip@...ts.infradead.org, heiko@...ech.de,
        daniel.vetter@...el.com, jani.nikula@...ux.intel.com,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        eballetbo@...il.com, robh+dt@...nel.org
Subject: Re: [PATCH v2 3/4] Documentation: bindings: add phy_config for
 Rockchip USB Type-C PHY

On Wed, May 09, 2018 at 06:22:43PM +0800, Lin Huang wrote:
> If want to do training outside DP Firmware, need phy voltage swing
> and pre_emphasis value.
> 
> Signed-off-by: Lin Huang <hl@...k-chips.com>

Adding Rob Herring so he has a hope of seeing this.

> ---
> Changes in v2:
> - rebase
> 
>  Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> index 960da7f..eda26dd 100644
> --- a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> @@ -17,7 +17,9 @@ Required properties:
>  
>  Optional properties:
>   - extcon : extcon specifier for the Power Delivery
> -
> + - rockchip,phy_config : That's phy voltage swing and pre_emphasis
> +			 setting, if want to do dp training outside
> +			 dp firmware, need to add these value.

What are the units?

Sean

>  Required nodes : a sub-node is required for each port the phy provides.
>  		 The sub-node name is used to identify dp or usb3 port,
>  		 and shall be the following entries:
> -- 
> 2.7.4
> 

-- 
Sean Paul, Software Engineer, Google / Chromium OS