linux-kernel - Re: [PATCH 2/3] arm64: dts: rockchip: Enable PD for USB-C-Port on rk3399-roc-pc.

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Message-ID: <2330032.fiRFtybceW@phil>
Date:   Sat, 21 Dec 2019 13:57:37 +0100
From:   Heiko Stuebner <heiko@...ech.de>
To:     Thomas McKahan <tmckahan@...gleboardsolutions.com>
Cc:     Markus Reichl <m.reichl@...etechno.de>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Jagan Teki <jagan@...rulasolutions.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        narmstrong@...libre.com
Subject: Re: [PATCH 2/3] arm64: dts: rockchip: Enable PD for USB-C-Port on rk3399-roc-pc.

Hi Thomas,

Am Donnerstag, 12. Dezember 2019, 16:46:09 CET schrieb Thomas McKahan:
> Hello Markus,
> 
>     I have been working with this as well, came across it on Armbian. I was also trying to eliminate the warning concerning the lack of port with limited success.  I also missed the interrupt pin definition I see.  I will test this later today.  

Where you successful in your testing? My type-c exposure is somewhat
limited so it would be nice to get another opinion ;-)

>    I've added Neil Armstrong for information in case any boards on the Amlogic side are similarly configured, I think a few other Rockchip ones at least are missing connector nodes, it appears to be a consistent issue presumably due to driver changes.

The whole type-c topic is a somewhat undiscovered country on rk3399, due to
the cross-ec hooking rk3399's type-c components. (see the cros-ec-pd extcon
going to the rockchip type-c phy etc).

This is presently worked on so that also everything can at some point use the
kernel-internal type-c framework.

But of course this doesn't hinder configuring the power-develivery in the
fusb302 ICs already :-D .


Heiko