typec: tcpm: Represent source supply through power_supply
This commit adds a power_supply class instance to represent a PD source's voltage and current properties. This provides an interface for reading these properties from user-space or other drivers. For PPS enabled Sources, this also provides write access to set the current and voltage and allows for swapping between standard PDO and PPS APDO. As this represents a superset of the information provided in the fusb302 driver, the power_supply instance in that code is removed as part of this change, so reverting the commit titled 'typec: tcpm: Represent source supply through power_supply class' Signed-off-by: NAdam Thomson <Adam.Thomson.Opensource@diasemi.com> Reviewed-by: NGuenter Roeck <linux@roeck-us.net> Reviewed-by: NHeikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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