[PATCH v4 6/8] usb: chipidea: otg: set host_request_flag for gadget

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Set host_request_flag if the current peripheral wants to take host role
via setting a_bus_req or b_bus_req by user application.

Acked-by: Peter Chen <peter.chen@xxxxxxxxxxxxx>
Signed-off-by: Li Jun <jun.li@xxxxxxxxxxxxx>
---
 drivers/usb/chipidea/otg_fsm.c |   13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
index 083acf4..2ec90dc 100644
--- a/drivers/usb/chipidea/otg_fsm.c
+++ b/drivers/usb/chipidea/otg_fsm.c
@@ -66,6 +66,11 @@ set_a_bus_req(struct device *dev, struct device_attribute *attr,
 			return count;
 		}
 		ci->fsm.a_bus_req = 1;
+		if (ci->fsm.otg->state == OTG_STATE_A_PERIPHERAL) {
+			ci->gadget.host_request_flag = 1;
+			mutex_unlock(&ci->fsm.lock);
+			return count;
+		}
 	}
 
 	ci_otg_queue_work(ci);
@@ -144,8 +149,14 @@ set_b_bus_req(struct device *dev, struct device_attribute *attr,
 	mutex_lock(&ci->fsm.lock);
 	if (buf[0] == '0')
 		ci->fsm.b_bus_req = 0;
-	else if (buf[0] == '1')
+	else if (buf[0] == '1') {
 		ci->fsm.b_bus_req = 1;
+		if (ci->fsm.otg->state == OTG_STATE_B_PERIPHERAL) {
+			ci->gadget.host_request_flag = 1;
+			mutex_unlock(&ci->fsm.lock);
+			return count;
+		}
+	}
 
 	ci_otg_queue_work(ci);
 	mutex_unlock(&ci->fsm.lock);
-- 
1.7.9.5

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