platform/chrome: cros_ec_typec: Correct alt mode index

Alt mode indices used by USB PD (Power Delivery) start with 1, not 0.

Update the alt mdoe registration code to factor this in to the alt mode
descriptor.

Fixes: de0f49487db3 ("platform/chrome: cros_ec_typec: Register partner altmodes")
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/20220819190807.1275937-3-pmalani@chromium.org

diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c
index d4dbca5..00208ff 100644 (file)
--- a/drivers/platform/chrome/cros_ec_typec.c
+++ b/drivers/platform/chrome/cros_ec_typec.c
@@ -734,7 +734,7 @@ static int cros_typec_register_altmodes(struct cros_typec_data *typec, int port_
                for (j = 0; j < sop_disc->svids[i].mode_count; j++) {
                        memset(&desc, 0, sizeof(desc));
                        desc.svid = sop_disc->svids[i].svid;
-                       desc.mode = j;
+                       desc.mode = j + 1;
                        desc.vdo = sop_disc->svids[i].mode_vdo[j];
 
                        if (is_partner)