usb: chipidea: add role init and destroy APIs

- The role's init will be called at probe procedure.
- The role's destroy will be called at fail patch
at probe and driver's removal.
- The role's start/stop will be called when specific
role has started.

Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 8cf8d28c88d..6f96795dd20 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -106,6 +106,13 @@ static void host_stop(struct ci_hdrc *ci)
 		regulator_disable(ci->platdata->reg_vbus);
 }
 
+
+void ci_hdrc_host_destroy(struct ci_hdrc *ci)
+{
+	if (ci->role == CI_ROLE_HOST)
+		host_stop(ci);
+}
+
 int ci_hdrc_host_init(struct ci_hdrc *ci)
 {
 	struct ci_role_driver *rdrv;