[PATCH 0/9] platform/chrome: Type-C switch driver and Type-C framework updates

From: Prashant Malani
Date: Wed Jun 29 2022 - 19:34:08 EST


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

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 | 17 +-
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, 653 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

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2.37.0.rc0.161.g10f37bed90-goog