[media] radio-keene: support suspend/resume

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/drivers/media/radio/radio-keene.c b/drivers/media/radio/radio-keene.c
index 5f33047d0d43..62d32c4946f7 100644
--- a/drivers/media/radio/radio-keene.c
+++ b/drivers/media/radio/radio-keene.c
@@ -156,6 +156,23 @@ static void usb_keene_disconnect(struct usb_interface *intf)
         v4l2_device_put(&radio->v4l2_dev);
 }
 
+static int usb_keene_suspend(struct usb_interface *intf, pm_message_t message)
+{
+        struct keene_device *radio = to_keene_dev(usb_get_intfdata(intf));
+
+        return keene_cmd_main(radio, 0, false);
+}
+
+static int usb_keene_resume(struct usb_interface *intf)
+{
+        struct keene_device *radio = to_keene_dev(usb_get_intfdata(intf));
+
+        mdelay(50);
+        keene_cmd_set(radio);
+        keene_cmd_main(radio, radio->curfreq, true);
+        return 0;
+}
+
 static int vidioc_querycap(struct file *file, void *priv,
                                         struct v4l2_capability *v)
 {
@@ -402,6 +419,9 @@ static struct usb_driver usb_keene_driver = {
         .probe                  = usb_keene_probe,
         .disconnect             = usb_keene_disconnect,
         .id_table               = usb_keene_device_table,
+        .suspend                = usb_keene_suspend,
+        .resume                 = usb_keene_resume,
+        .reset_resume           = usb_keene_resume,
 };
 
 static int __init keene_init(void)