[PATCH v11 0/9] Register Type-C mode-switch in DP bridge endpoints - Pin-yen Lin

From: Pin-yen Lin <treapking@chromium.org>
To: Andrzej Hajda <andrzej.hajda@intel.com>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Robert Foss <robert.foss@linaro.org>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Jonas Karlman <jonas@kwiboo.se>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Daniel Scally <djrscally@gmail.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Sakari Ailus <sakari.ailus@linux.intel.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J . Wysocki" <rafael@kernel.org>,
	Prashant Malani <pmalani@chromium.org>,
	Benson Leung <bleung@chromium.org>,
	Guenter Roeck <groeck@chromium.org>
Cc: linux-kernel@vger.kernel.org,
	"Nícolas F . R . A . Prado" <nfraprado@collabora.com>,
	"Hsin-Yi Wang" <hsinyi@chromium.org>,
	devicetree@vger.kernel.org,
	"Pin-yen Lin" <treapking@chromium.org>,
	"Allen Chen" <allen.chen@ite.com.tw>,
	"Lyude Paul" <lyude@redhat.com>,
	linux-acpi@vger.kernel.org, dri-devel@lists.freedesktop.org,
	"Marek Vasut" <marex@denx.de>, "Xin Ji" <xji@analogixsemi.com>,
	"Stephen Boyd" <swboyd@chromium.org>,
	"AngeloGioacchino Del Regno"
	<angelogioacchino.delregno@collabora.com>,
	"Thomas Zimmermann" <tzimmermann@suse.de>,
	"Javier Martinez Canillas" <javierm@redhat.com>,
	chrome-platform@lists.linux.dev,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Andi Shyti" <andi.shyti@linux.intel.com>,
	"Douglas Anderson" <dianders@chromium.org>,
	"Gustavo A. R. Silva" <gustavoars@kernel.org>,
	"Imre Deak" <imre.deak@intel.com>,
	"Jani Nikula" <jani.nikula@intel.com>,
	"José Expósito" <jose.exposito89@gmail.com>,
	"Kees Cook" <keescook@chromium.org>,
	"Thierry Reding" <treding@nvidia.com>
Subject: [PATCH v11 0/9] Register Type-C mode-switch in DP bridge endpoints
Date: Sat,  4 Feb 2023 21:30:31 +0800	[thread overview]
Message-ID: <20230204133040.1236799-1-treapking@chromium.org> (raw)

This series introduces bindings for anx7625/it6505 to register Type-C
mode-switch in their output endpoints, and use data-lanes property to
describe the pin connections.

This series is not directly related to the built-in mux in anx7625,
which automatically switches between the two orientations of a single
Type-C connector. This series adds support of registering mode switches
for two downstream devices, while we use orientation switches for two
orientations of the Type-C connector.

The first two patch modifies fwnode_graph_devcon_matches and
cros_typec_init_ports to enable the registration of the switches.

Patch 4~6 introduce the bindings for anx7625 and the corresponding driver
modifications.

Patch 7~9 add similar bindings and driver changes for it6505.

v10: https://lore.kernel.org/all/20230112042104.4107253-1-treapking@chromium.org/
v9: https://lore.kernel.org/all/20230109084101.265664-1-treapking@chromium.org/
v8: https://lore.kernel.org/all/20230107102231.23682-1-treapking@chromium.org/
v7: https://lore.kernel.org/all/20230105132457.4125372-1-treapking@chromium.org/
v6: https://lore.kernel.org/all/20221124102056.393220-1-treapking@chromium.org/
v5: https://lore.kernel.org/linux-usb/20220622173605.1168416-1-pmalani@chromium.org/

Changes in v11:
- Added missing fwnode_handle_put in drivers/base/property.c
- Collected Acked-by tag
- Use fwnode helpers instead of DT
- Moved the helpers to a new file
- Use "reg" instead of "data-lanes" to determine the port number
- Updated the description of the endpoints in the bindings
- Referenced video-interfaces.yaml instead for the endpoints binding
- Removed duplicated definitions from inherited schema
- Moved the "data-lanes" parsing logics to bridge drivers
- Removed Kconfig dependencies for the bridge drivers
- Updated the usage of the private bridge driver data
- Added a clarification on the anx7625 built-in mux in the cover letter

Changes in v10:
- Collected Reviewed-by and Tested-by tags
- Replaced "void *" with "typec_mux_set_fn_t" for mux_set callbacks
- Print out the node name when errors on parsing DT
- Use dev_dbg instead of dev_warn when no Type-C switch nodes available
- Made the return path of drm_dp_register_mode_switch clearer
- Added a TODO for implementing orientation switch for anx7625
- Updated the commit message for the absence of orientation switch
- Fixed typo in the commit message

Changes in v9:
- Collected Reviewed-by tag
- Fixed subject prefix again
- Changed the naming of the example node for it6505

Changes in v8:
- Fixed the build issue when CONFIG_TYPEC=m
- Fixed some style issues
- Fixed the subject prefixes for the bindings patch
- Fixed the bindings for data-lanes properties

Changes in v7:
- Fix the long comment lines
- Extracted the common codes to a helper function
- Fixed style issues in anx7625 driver
- Removed DT property validation in anx7625 driver.
- Fixed style issues in it6505 driver
- Removed the redundant sleep in it6505 driver
- Removed DT property validation in it6505 driver
- Rebased to drm-misc-next
- Fixed indentations in bindings patches
- Added a new patch to fix indentations in Kconfig

Changes in v6:
- Changed it6505_typec_mux_set callback function to accommodate with
  the latest drm-misc patches
- Changed the driver implementation to accommodate with the new binding
- Dropped typec-switch binding and use endpoints and data-lanes properties
  to describe the pin connections
- Added new patches (patch 1,2,4) to fix probing issues
- Changed the bindings of it6505/anx7625 and modified the drivers
  accordingly
- Merged it6505/anx7625 driver changes into a single patch

Pin-yen Lin (7):
  drm/display: Add Type-C switch helpers
  dt-bindings: display: bridge: anx7625: Add mode-switch support
  drm/bridge: anx7625: Check for Type-C during panel registration
  drm/bridge: anx7625: Register Type C mode switches
  dt-bindings: display: bridge: it6505: Add mode-switch support
  drm/bridge: it6505: Fix Kconfig indentation
  drm/bridge: it6505: Register Type C mode switches

Prashant Malani (2):
  device property: Add remote endpoint to devcon matcher
  platform/chrome: cros_ec_typec: Purge blocking switch devlinks

 .../display/bridge/analogix,anx7625.yaml      |  94 ++++++++-
 .../bindings/display/bridge/ite,it6505.yaml   | 101 ++++++++--
 drivers/base/property.c                       |  16 ++
 drivers/gpu/drm/bridge/Kconfig                |  20 +-
 drivers/gpu/drm/bridge/analogix/anx7625.c     | 162 +++++++++++++++-
 drivers/gpu/drm/bridge/analogix/anx7625.h     |  20 ++
 drivers/gpu/drm/bridge/ite-it6505.c           | 179 +++++++++++++++++-
 drivers/gpu/drm/display/Makefile              |   1 +
 drivers/gpu/drm/display/drm_dp_typec_helper.c | 114 +++++++++++
 drivers/platform/chrome/cros_ec_typec.c       |  10 +
 include/drm/display/drm_dp_helper.h           |  31 +++
 11 files changed, 717 insertions(+), 31 deletions(-)
 create mode 100644 drivers/gpu/drm/display/drm_dp_typec_helper.c

-- 
2.39.1.519.gcb327c4b5f-goog