linux-kernel - [PATCH v5 0/9] usb: typec: Introduce typec-switch binding

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Date:   Wed, 22 Jun 2022 17:34:29 +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>,
        Allen Chen <allen.chen@....com.tw>,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.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 v5 0/9] 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 2 patches introduce the new "typec-switch" binding as
well as one user of it (the ANX7625 drm bridge).

Patches 3-5 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.

Patch 6-9 add similar bindings update and Type-C switch support to the
it6505 driver.

v4:
https://lore.kernel.org/linux-usb/20220615172129.1314056-8-pmalani@chromium.org/

Changes in v5:
- Rebased on usb-next, so removed Patch v4 1/7 and Patch v4 2/7 from
  this version (v5) since they are already in usb-next.
- Added newer Reviewed-by tags.
- Added new patches (6-9) in this version for a 2nd example (it6505)
  of a binding of the user.

Patch submission suggestions:
Option 1:
- Bindings patches 1/9 and 2/9 can go through the USB repo (since they are
  already reviewed from v4 [1]).
- Bindings patch 6/9 can go through the USB repo, and the remaining patches
  (3-5,7-9) can go through the DRM repo.
  <or>
- Patches 3-9 can all go through the DRM repo.

Option 2:
- All patches (1-9) go through the USB repo.

(My apologies if I've made this confusing, and I appreciate any
suggestions for better submission strategy).

[1]: https://lore.kernel.org/linux-usb/YrMxFeMc0tk%2FK1qL@kroah.com/

Pin-Yen Lin (5):
  drm/bridge: anx7625: Add typec_mux_set callback function
  dt/bindings: drm/bridge: it6505: Add mode-switch support
  drm/bridge: it6505: Register number of Type C switches
  drm/bridge: it6505: Register Type-C mode switches
  drm/bridge: it6505: Add typec_mux_set callback function

Prashant Malani (4):
  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      |  64 +++++++
 .../bindings/display/bridge/ite,it6505.yaml   |  97 +++++++++-
 .../devicetree/bindings/usb/typec-switch.yaml |  74 ++++++++
 drivers/gpu/drm/bridge/analogix/anx7625.c     | 148 +++++++++++++++
 drivers/gpu/drm/bridge/analogix/anx7625.h     |  20 ++
 drivers/gpu/drm/bridge/ite-it6505.c           | 171 +++++++++++++++++-
 6 files changed, 569 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/usb/typec-switch.yaml

-- 
2.37.0.rc0.104.g0611611a94-goog