From: Prashant Malani <pmalani@chromium.org>
Date: Fri, 20 Jan 2023 20:58:26 +0000 (+0000)
Subject: usb: typec: altmodes/displayport: Update active state
X-Git-Tag: v6.3-rc1~110^2~126
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=25d6d1bfc213bce03d2e34c9e43477e01ffba7c3;p=thirdparty%2Fkernel%2Flinux.git

usb: typec: altmodes/displayport: Update active state

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>
---

diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c
index 746bfbf3d5576..20db51471c98e 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;