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usb: typec: altmodes/displayport: Update active state

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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@linux.intel.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Link: https://lore.kernel.org/r/20230120205827.740900-1-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Prashant Malani
2023-01-20 20:58:26 +00:00
committed by Greg Kroah-Hartman
parent 6f7fb48d24
commit 25d6d1bfc2
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/typec/altmodes/displayport.c
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@@ -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;