This patch introduces a new API, `google_chromeec_is_charger_present()`,
to determine if a charger is connected.
The API leverages the existing `ec_cmd_battery_get_dynamic()` command
to retrieve battery flags and checks the `EC_BATT_FLAG_AC_PRESENT`
flag to ascertain charger presence.
Other components can leverage this API to query the charger status,
which is particularly useful for distinguishing between barrel chargers
and USB-C chargers after relying on the
`google_chromeec_is_usb_pd_attached()` API.
BUG=b:377798581
TEST=Able to read the charger status (w/ barrel and/or w/ USB-PD)
correctly while booting google/fatcat.
Change-Id: Iadf81400f71a51c093f71fe995cacc107c50c7af
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/85758
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
42fd35b486