[media] dvb_usb_v2: .reset_resume() support

Add .reset_resume() support.
Also some other small changes for suspend / resume.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

2 files changed, 35 insertions, 9 deletions

diff --git a/drivers/media/usb/dvb-usb-v2/dvb_usb.h b/drivers/media/usb/dvb-usb-v2/dvb_usb.h
index 63fc275c6497..5a53c6231fc2 100644
--- a/drivers/media/usb/dvb-usb-v2/dvb_usb.h
+++ b/drivers/media/usb/dvb-usb-v2/dvb_usb.h
@@ -383,7 +383,7 @@ extern int dvb_usbv2_probe(struct usb_interface *,
 extern void dvb_usbv2_disconnect(struct usb_interface *);
 extern int dvb_usbv2_suspend(struct usb_interface *, pm_message_t);
 extern int dvb_usbv2_resume(struct usb_interface *);
-#define dvb_usbv2_reset_resume dvb_usbv2_resume
+extern int dvb_usbv2_reset_resume(struct usb_interface *);
 
 /* the generic read/write method for device control */
 extern int dvb_usbv2_generic_rw(struct dvb_usb_device *, u8 *, u16, u8 *, u16);
diff --git a/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c b/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c
index a0e70e91834a..e2d73e1a7ae0 100644
--- a/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c
+++ b/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c
@@ -952,7 +952,7 @@ EXPORT_SYMBOL(dvb_usbv2_disconnect);
 int dvb_usbv2_suspend(struct usb_interface *intf, pm_message_t msg)
 {
         struct dvb_usb_device *d = usb_get_intfdata(intf);
-        int i, active_fe;
+        int ret = 0, i, active_fe;
         struct dvb_frontend *fe;
         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 
@@ -972,18 +972,17 @@ int dvb_usbv2_suspend(struct usb_interface *intf, pm_message_t msg)
                         /* stop usb streaming */
                         usb_urb_killv2(&d->adapter[i].stream);
 
-                        dvb_frontend_suspend(fe);
+                        ret = dvb_frontend_suspend(fe);
                 }
         }
 
-        return 0;
+        return ret;
 }
 EXPORT_SYMBOL(dvb_usbv2_suspend);
 
-int dvb_usbv2_resume(struct usb_interface *intf)
+static int dvb_usbv2_resume_common(struct dvb_usb_device *d)
 {
-        struct dvb_usb_device *d = usb_get_intfdata(intf);
-        int i, active_fe;
+        int ret = 0, i, active_fe;
         struct dvb_frontend *fe;
         dev_dbg(&d->udev->dev, "%s:\n", __func__);
 
@@ -992,7 +991,7 @@ int dvb_usbv2_resume(struct usb_interface *intf)
                 if (d->adapter[i].dvb_adap.priv && active_fe != -1) {
                         fe = d->adapter[i].fe[active_fe];
 
-                        dvb_frontend_resume(fe);
+                        ret = dvb_frontend_resume(fe);
 
                         /* resume usb streaming */
                         usb_urb_submitv2(&d->adapter[i].stream, NULL);
@@ -1009,10 +1008,37 @@ int dvb_usbv2_resume(struct usb_interface *intf)
                 schedule_delayed_work(&d->rc_query_work,
                                 msecs_to_jiffies(d->rc.interval));
 
-        return 0;
+        return ret;
+}
+
+int dvb_usbv2_resume(struct usb_interface *intf)
+{
+        struct dvb_usb_device *d = usb_get_intfdata(intf);
+        dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+        return dvb_usbv2_resume_common(d);
 }
 EXPORT_SYMBOL(dvb_usbv2_resume);
 
+int dvb_usbv2_reset_resume(struct usb_interface *intf)
+{
+        struct dvb_usb_device *d = usb_get_intfdata(intf);
+        int ret;
+        dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+        dvb_usbv2_device_power_ctrl(d, 1);
+
+        if (d->props->init)
+                d->props->init(d);
+
+        ret = dvb_usbv2_resume_common(d);
+
+        dvb_usbv2_device_power_ctrl(d, 0);
+
+        return ret;
+}
+EXPORT_SYMBOL(dvb_usbv2_reset_resume);
+
 MODULE_VERSION("2.0");
 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");