Re: [PATCH] usb: typec: altmodes/displayport: Update active state

Hi Prashant,

On Wed, Jan 18, 2023 at 03:15:15AM +0000, Prashant Malani wrote:

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.

Fixes: 0e3bb7d6894d ("usb: typec: Add driver for DisplayPort alternate mode") Cc: stable@vger.kernel.org Cc: Heikki Krogerus heikki.krogerus@linux.intel.com Signed-off-by: Prashant Malani pmalani@chromium.org

Reviewed-by: Benson Leung bleung@chromium.org

---

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;
  

-- 2.39.0.314.g84b9a713c41-goog