usb: gadget: f_acm: 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 3affccd) Change-Id: I3519dd834a246fafe0162f6c0d8eeae89211f136 Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/linux-stm32/+/167812 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 · 4a2f297 · 4a2f297
1 parent 982f6f7
commit 4a2f297
Showing 1 changed file with 16 additions and 0 deletions.
diff --git a/drivers/usb/gadget/function/f_acm.c b/drivers/usb/gadget/function/f_acm.c
@@ -723,6 +723,20 @@ static void acm_free_func(struct usb_function *f)
 	kfree(acm);
 }
 
+static void acm_resume(struct usb_function *f)
+{
+	struct f_acm *acm = func_to_acm(f);
+
+	gserial_resume(&acm->port);
+}
+
+static void acm_suspend(struct usb_function *f)
+{
+	struct f_acm *acm = func_to_acm(f);
+
+	gserial_suspend(&acm->port);
+}
+
 static struct usb_function *acm_alloc_func(struct usb_function_instance *fi)
 {
 	struct f_serial_opts *opts;
@@ -750,6 +764,8 @@ static struct usb_function *acm_alloc_func(struct usb_function_instance *fi)
 	acm->port_num = opts->port_num;
 	acm->port.func.unbind = acm_unbind;
 	acm->port.func.free_func = acm_free_func;
+	acm->port.func.resume = acm_resume;
+	acm->port.func.suspend = acm_suspend;
 
 	return &acm->port.func;
 }