platform/chrome: cros_typec_switch: Add switch driver

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Introduce a driver to configure USB Type-C mode switches and retimers
which are controlled by the Chrome OS EC (Embedded Controller).
This allows Type-C port drivers, as well as alternate mode drivers to
configure their relevant mode switches and retimers according to the
Type-C state they want to achieve.

ACPI devices with ID GOOG001A will bind to this driver.

Currently, we only register a retimer switch with a stub set function.
Subsequent patches will implement the host command set functionality,
and introduce mode switches.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Link: https://lore.kernel.org/r/20220711072333.2064341-5-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Prashant Malani 2022-07-11 07:22:58 +00:00 • committed by Greg Kroah-Hartman

parent 28a6ed8e39

commit e54369058f

4 changed files with 183 additions and 0 deletions

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MAINTAINERS

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drivers/platform/chrome/Kconfig

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drivers/platform/chrome/Makefile

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170

drivers/platform/chrome/cros_typec_switch.c

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