This series introduces a retimer class to the USB Type-C framework, It also introduces a Chrome EC (Embedded Controller) switch driver which registers the aforementioned retimer switches as well as mode-switches. Patch 1 and 2 introduce the retimer class and associated functions to the Type-C common code. Patches 3-7 add the cros-typec-switch driver. Patches 8-9 update cros-ec-typec to get and use retimer switch handles. Submission suggestion (as always, open to better suggestions): - Patch 1 and 2 can go through the USB repo. - Patch 3-9 can go through the chrome-platform repo. Since they depend on patches 1 and 2, we can create an "topic branch" off of usb-next once Patch 1 and 2 are submitted, and then apply Patches 3-9 on top of that "topic branch" before merging it back into chrome-platform's for-next branch v3: https://lore.kernel.org/linux-usb/20220707222045.1415417-1-pmalani@xxxxxxxxxxxx/ Changes since v3: - Updated Commit message of Patch 1 to mention that no new class-specific sysfs files are being created. Changes since v2: - Fixed missing "static" declarations, and removed newlines from function signatures. Changes since v1: - Changed class name and retimer device type name, and fixed retimer reference release issue. Prashant Malani (9): usb: typec: Add support for retimers usb: typec: Add retimer handle to port platform/chrome: Add Type-C mux set command definitions platform/chrome: cros_typec_switch: Add switch driver platform/chrome: cros_typec_switch: Set EC retimer platform/chrome: cros_typec_switch: Add event check platform/chrome: cros_typec_switch: Register mode switches platform/chrome: cros_ec_typec: Cleanup switch handle return paths platform/chrome: cros_ec_typec: Get retimer handle MAINTAINERS | 1 + drivers/platform/chrome/Kconfig | 11 + drivers/platform/chrome/Makefile | 1 + drivers/platform/chrome/cros_ec_typec.c | 50 ++- drivers/platform/chrome/cros_typec_switch.c | 332 ++++++++++++++++++ drivers/usb/typec/Makefile | 2 +- drivers/usb/typec/class.c | 18 +- drivers/usb/typec/class.h | 2 + drivers/usb/typec/retimer.c | 168 +++++++++ drivers/usb/typec/retimer.h | 15 + .../linux/platform_data/cros_ec_commands.h | 18 + include/linux/usb/typec_retimer.h | 45 +++ 12 files changed, 654 insertions(+), 9 deletions(-) create mode 100644 drivers/platform/chrome/cros_typec_switch.c create mode 100644 drivers/usb/typec/retimer.c create mode 100644 drivers/usb/typec/retimer.h create mode 100644 include/linux/usb/typec_retimer.h -- 2.37.0.144.g8ac04bfd2-goog
