Update the altmode "active" state when we receive Acks for Enter and Exit Mode commands. Having the right state is necessary to change Pin Assignments using the 'pin_assignment" sysfs file. Cc: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx> Reviewed-by: Benson Leung <bleung@xxxxxxxxxxxx> Signed-off-by: Prashant Malani <pmalani@xxxxxxxxxxxx> --- Changes since v1: - Dropped the Fixes and Cc: stable tags; given the discussion in [1] I no longer think this constitutes a fix. - Added Reviewed-by tag from Benson. [1] https://lore.kernel.org/linux-usb/20230118031514.1278139-1-pmalani@xxxxxxxxxxxx/ drivers/usb/typec/altmodes/displayport.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c index 06fb4732f8cd..bc1c556944d6 100644 --- a/drivers/usb/typec/altmodes/displayport.c +++ b/drivers/usb/typec/altmodes/displayport.c @@ -277,9 +277,11 @@ static int dp_altmode_vdm(struct typec_altmode *alt, case CMDT_RSP_ACK: switch (cmd) { case CMD_ENTER_MODE: + typec_altmode_update_active(alt, true); dp->state = DP_STATE_UPDATE; break; case CMD_EXIT_MODE: + typec_altmode_update_active(alt, false); dp->data.status = 0; dp->data.conf = 0; break; -- 2.39.0.246.g2a6d74b583-goog
