usb: gadget: f_serial: add suspend resume callbacks

Add suspend resume callbacks to notify u_serial of the bus suspend/resume state. Signed-off-by: Fabrice Gasnier <[email protected]> Signed-off-by: Felipe Balbi <[email protected]> (cherry picked from commit e702a7c) Change-Id: I8ee0039a7d07045278d6fb6534f94297fb615f9a Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/linux-stm32/+/167811 Reviewed-by: CITOOLS <[email protected]> Reviewed-by: Amelie DELAUNAY <[email protected]> Reviewed-by: Fabrice GASNIER <[email protected]> Tested-by: Fabrice GASNIER <[email protected]>
STMicroelectronics · May 29, 2020 · 982f6f7 · 982f6f7
1 parent 79cfd19
commit 982f6f7
Showing 1 changed file with 16 additions and 0 deletions.
diff --git a/drivers/usb/gadget/function/f_serial.c b/drivers/usb/gadget/function/f_serial.c
@@ -327,6 +327,20 @@ static void gser_unbind(struct usb_configuration *c, struct usb_function *f)
 	usb_free_all_descriptors(f);
 }
 
+static void gser_resume(struct usb_function *f)
+{
+	struct f_gser *gser = func_to_gser(f);
+
+	gserial_resume(&gser->port);
+}
+
+static void gser_suspend(struct usb_function *f)
+{
+	struct f_gser *gser = func_to_gser(f);
+
+	gserial_suspend(&gser->port);
+}
+
 static struct usb_function *gser_alloc(struct usb_function_instance *fi)
 {
 	struct f_gser	*gser;
@@ -348,6 +362,8 @@ static struct usb_function *gser_alloc(struct usb_function_instance *fi)
 	gser->port.func.set_alt = gser_set_alt;
 	gser->port.func.disable = gser_disable;
 	gser->port.func.free_func = gser_free;
+	gser->port.func.resume = gser_resume;
+	gser->port.func.suspend = gser_suspend;
 
 	return &gser->port.func;
 }