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usb: typec: ucsi: Add check for UCSI version

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"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: c851b71fd6 ("usb: typec: ucsi: Add support for READ_POWER_LEVEL command")
Signed-off-by: Venkat Jayaraman <venkat.jayaraman@intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20250905184401.3222530-1-venkat.jayaraman@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Venkat Jayaraman 2025-09-05 11:44:01 -07:00 committed by Greg Kroah-Hartman
parent 87c5ff5615
commit 1bc28f015a
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/typec/ucsi/ucsi.c
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@ -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);