greybus: timesync: Bind TimeSync into Greybus

TimeSync needs to bind into Greybus in a few places.

- core.c
  To initialize its internal state and tear-down its internal state.
  To schedule a timesync to a newly added Bundle after probe() completes.

- svc.c
  To get access to the SVC and enable/disable timesync as well as
  extracting the authoritative time from the SVC to subsequently
  disseminate to other entities in the system.

- interface.c
  To get access to an Interface in order to inform APBx of timesync
  enable/disable and authoritative operations.

This patch adds those bindings into Greybus core.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Acked-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/staging/greybus/interface.c b/drivers/staging/greybus/interface.c
index 3eb8754961f1..9b90209e8fe0 100644
--- a/drivers/staging/greybus/interface.c
+++ b/drivers/staging/greybus/interface.c
@@ -805,6 +805,12 @@ int gb_interface_enable(struct gb_interface *intf)
 	if (ret)
 		goto err_destroy_bundles;
 
+	ret = gb_timesync_interface_add(intf);
+	if (ret) {
+		dev_err(&intf->dev, "failed to add to timesync: %d\n", ret);
+		goto err_destroy_bundles;
+	}
+
 	list_for_each_entry_safe_reverse(bundle, tmp, &intf->bundles, links) {
 		ret = gb_bundle_add(bundle);
 		if (ret) {
@@ -857,6 +863,7 @@ void gb_interface_disable(struct gb_interface *intf)
 	list_for_each_entry_safe(bundle, next, &intf->bundles, links)
 		gb_bundle_destroy(bundle);
 
+	gb_timesync_interface_remove(intf);
 	gb_control_del(intf->control);
 	gb_control_disable(intf->control);
 	gb_control_put(intf->control);