platform/chrome: cros_typec_switch: Add switch driver
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.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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