Commit 1bc28f01 authored by Venkat Jayaraman's avatar Venkat Jayaraman Committed by Greg Kroah-Hartman
Browse files

usb: typec: ucsi: Add check for UCSI version 



"Power Reading" bit is introduced in UCSI v2.1 and so limit the
check for that bit only if version supported is 2.1 or above.

Fixes: c851b71f ("usb: typec: ucsi: Add support for READ_POWER_LEVEL command")
Signed-off-by: default avatarVenkat Jayaraman <venkat.jayaraman@intel.com>
Reviewed-by: default avatarHeikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20250905184401.3222530-1-venkat.jayaraman@intel.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 87c5ff56

drivers/usb/typec/ucsi/ucsi.c

+2 −1
Original line number Diff line number Diff line
@@ -1293,7 +1293,8 @@ static void ucsi_handle_connector_change(struct work_struct *work) 
	if (change & UCSI_CONSTAT_BC_CHANGE)

		ucsi_port_psy_changed(con);



	if (UCSI_CONSTAT(con, PWR_READING_READY_V2_1)) {

	if (con->ucsi->version >= UCSI_VERSION_2_1 &&

	    UCSI_CONSTAT(con, PWR_READING_READY_V2_1)) {

		curr_scale = UCSI_CONSTAT(con, CURRENT_SCALE_V2_1);

		volt_scale = UCSI_CONSTAT(con, VOLTAGE_SCALE_V2_1);