linux-kernel - Re: [PATCH RFC 2/2] drm: bridge: anx7625: implement minimal Type-C support

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Message-ID: <kozspjah32l6czhb6kj7jba6vz2wbqldrhw6rov67ujlegrbby@3aeqmn2oico6>
Date: Sat, 6 Dec 2025 05:31:19 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Cc: Andrzej Hajda <andrzej.hajda@...el.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Robert Foss <rfoss@...nel.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Xin Ji <xji@...logixsemi.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC 2/2] drm: bridge: anx7625: implement minimal Type-C
 support

On Thu, Dec 04, 2025 at 03:15:08PM +0200, Heikki Krogerus wrote:
> Wed, Nov 26, 2025 at 11:41:57AM +0200, Dmitry Baryshkov kirjoitti:
> > ANX7625 can be used as a USB-C controller, handling USB and DP data
> > streams. Provide minimal Type-C support necessary for ANX7625 to
> > register the Type-C port device and properly respond to data / power
> > role events from the Type-C partner.
> > 
> > While ANX7625 provides TCPCI interface, using it would circumvent the
> > on-chip running firmware. Analogix recommended using the higher-level
> > interface instead of TCPCI.
> > 
> > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> 
> FWIW:
> 
> Reviewed-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

Thanks!


-- 
With best wishes
Dmitry