From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sun, 10 Aug 2014 00:47:11 +0000 (-0300)
Subject: [media] au0828: don't let the IR polling thread to run at suspend
X-Git-Tag: firefly_0821_release~176^2~2474^2~949
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=aaeac1991b2c3dff46e0aae5e1d7c7f46ac9eddc;p=firefly-linux-kernel-4.4.55.git

[media] au0828: don't let the IR polling thread to run at suspend

Trying to make au0828 to suspend can do very bad things, as
the polling Kthread is not handled. We should disable it
during suspend, only re-enabling it at resume.

Still, analog and digital TV won't work, as we don't reinit
the settings at resume, but at least it won't hang.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---

diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c
index b08b979bb9a7..3a02de142f9f 100644
--- a/drivers/media/usb/au0828/au0828-core.c
+++ b/drivers/media/usb/au0828/au0828-core.c
@@ -281,13 +281,42 @@ static int au0828_usb_probe(struct usb_interface *interface,
 	return retval;
 }
 
+static int au0828_suspend(struct usb_interface *interface,
+				pm_message_t message)
+{
+	struct au0828_dev *dev = usb_get_intfdata(interface);
+
+	if (!dev)
+		return 0;
+
+	au0828_rc_suspend(dev);
+
+	/* FIXME: should suspend also ATV/DTV */
+
+	return 0;
+}
+
+static int au0828_resume(struct usb_interface *interface)
+{
+	struct au0828_dev *dev = usb_get_intfdata(interface);
+	if (!dev)
+		return 0;
+
+	au0828_rc_resume(dev);
+
+	/* FIXME: should resume also ATV/DTV */
+
+	return 0;
+}
+
 static struct usb_driver au0828_usb_driver = {
 	.name		= DRIVER_NAME,
 	.probe		= au0828_usb_probe,
 	.disconnect	= au0828_usb_disconnect,
 	.id_table	= au0828_usb_id_table,
-
-	/* FIXME: Add suspend and resume functions */
+	.suspend	= au0828_suspend,
+	.resume		= au0828_resume,
+	.reset_resume	= au0828_resume,
 };
 
 static int __init au0828_init(void)