usb: typec: Update sysfs when setting ops

When adding altmode ops, update the sysfs group so that visibility is
also recalculated.

Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Jameson Thies <jthies@google.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240510201244.2968152-3-jthies@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 17 insertions, 1 deletions

diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
index 9610e647a8d4..9262fcd4144f 100644
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -467,6 +467,22 @@ static const struct attribute_group *typec_altmode_groups[] = {
 	NULL
 };
 
+/**
+ * typec_altmode_set_ops - Set ops for altmode
+ * @adev: Handle to the alternate mode
+ * @ops: Ops for the alternate mode
+ *
+ * After setting ops, attribute visiblity needs to be refreshed if the alternate
+ * mode can be activated.
+ */
+void typec_altmode_set_ops(struct typec_altmode *adev,
+			   const struct typec_altmode_ops *ops)
+{
+	adev->ops = ops;
+	sysfs_update_group(&adev->dev.kobj, &typec_altmode_group);
+}
+EXPORT_SYMBOL_GPL(typec_altmode_set_ops);
+
 static int altmode_id_get(struct device *dev)
 {
 	struct ida *ids;
@@ -2317,7 +2333,7 @@ void typec_port_register_altmodes(struct typec_port *port,
 			continue;
 		}
 
-		alt->ops = ops;
+		typec_altmode_set_ops(alt, ops);
 		typec_altmode_set_drvdata(alt, drvdata);
 		altmodes[index] = alt;
 		index++;