linux-kernel - [PATCH v3 0/7] usb: typec: Introduce typec-switch binding

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Message-Id: <20220614193558.1163205-1-pmalani@chromium.org>
Date:   Tue, 14 Jun 2022 19:34:34 +0000
From:   Prashant Malani <pmalani@...omium.org>
To:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Cc:     bleung@...omium.org, swboyd@...omium.org,
        heikki.krogerus@...ux.intel.com,
        Prashant Malani <pmalani@...omium.org>,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        dri-devel@...ts.freedesktop.org (open list:DRM DRIVERS),
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Jonas Karlman <jonas@...boo.se>,
        José Expósito <jose.exposito89@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Maxime Ripard <maxime@...no.tech>,
        Neil Armstrong <narmstrong@...libre.com>,
        Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>, Pin-Yen Lin <treapking@...omium.org>,
        Robert Foss <robert.foss@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sam Ravnborg <sam@...nborg.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Xin Ji <xji@...logixsemi.com>
Subject: [PATCH v3 0/7] usb: typec: Introduce typec-switch binding

This series introduces a binding for Type-C data lane switches. These
control the routing and operating modes of USB Type-C data lanes based
on the PD messaging from the Type-C port driver regarding connected
peripherals.

The first patch introduces a change to the Type-C mux class mode-switch
matching code, while the second adds a config guard to a Type-C header.
The next couple of patches introduce the new "typec-switch" binding as
well as one user of it (the ANX7625 drm bridge).

The remaining patches add functionality to the anx7625 driver to
register the mode-switches, as well as program its crosspoint
switch depending on which Type-C port has a DisplayPort (DP) peripheral
connected to it.

v2: https://lore.kernel.org/linux-usb/20220609181106.3695103-1-pmalani@chromium.org/

Changes since v2:
- Addressed review comments in typec_mux.h
- Changed error print to only print when a device is actually listed in
  DT.
- Moved num_typec_switches check to beginning of function.
- Picked up Reviewed-by and Tested-by tags from v2.

Pin-Yen Lin (1):
  drm/bridge: anx7625: Add typec_mux_set callback function

Prashant Malani (6):
  usb: typec: mux: Allow muxes to specify mode-switch
  usb: typec: mux: Add CONFIG guards for functions
  dt-bindings: usb: Add Type-C switch binding
  dt-bindings: drm/bridge: anx7625: Add mode-switch support
  drm/bridge: anx7625: Register number of Type C switches
  drm/bridge: anx7625: Register Type-C mode switches

 .../display/bridge/analogix,anx7625.yaml      |  63 ++++++++
 .../devicetree/bindings/usb/typec-switch.yaml |  74 +++++++++
 drivers/gpu/drm/bridge/analogix/anx7625.c     | 148 ++++++++++++++++++
 drivers/gpu/drm/bridge/analogix/anx7625.h     |  20 +++
 drivers/usb/typec/mux.c                       |   8 +-
 include/linux/usb/typec_mux.h                 |  44 +++++-
 6 files changed, 349 insertions(+), 8 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/usb/typec-switch.yaml

-- 
2.36.1.476.g0c4daa206d-goog