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authorDavid Ellingsworth <david@identd.dyndns.org>2009-09-23 23:24:47 +0200
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-12-05 21:40:11 +0100
commitd8970e5fd9eace437bc2f1aaff1c2a05fb3448ea (patch)
treef581fe2b1025cc1e51a2db8f2788edd4c3a6c29d /drivers
parentV4L/DVB (13070): radio-mr800: fix behavior of set_stereo function (diff)
downloadlinux-d8970e5fd9eace437bc2f1aaff1c2a05fb3448ea.tar.xz
linux-d8970e5fd9eace437bc2f1aaff1c2a05fb3448ea.zip
V4L/DVB (13071): radio-mr800: preserve radio state during suspend/resume
Preserve radio state during suspend/resume. Signed-off-by: David Ellingsworth <david@identd.dyndns.org> Acked-by: Alexey Klimov <klimov.linux@gmail.com> Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/radio/radio-mr800.c33
1 files changed, 28 insertions, 5 deletions
diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c
index 9764eca2c498..ac2107378942 100644
--- a/drivers/media/radio/radio-mr800.c
+++ b/drivers/media/radio/radio-mr800.c
@@ -574,9 +574,12 @@ static int usb_amradio_suspend(struct usb_interface *intf, pm_message_t message)
mutex_lock(&radio->lock);
- retval = amradio_set_mute(radio, AMRADIO_STOP);
- if (retval < 0)
- dev_warn(&intf->dev, "amradio_stop failed\n");
+ if (!radio->muted && radio->initialized) {
+ retval = amradio_set_mute(radio, AMRADIO_STOP);
+ if (retval < 0)
+ dev_warn(&intf->dev, "amradio_stop failed\n");
+ radio->muted = 0;
+ }
dev_info(&intf->dev, "going into suspend..\n");
@@ -592,10 +595,30 @@ static int usb_amradio_resume(struct usb_interface *intf)
mutex_lock(&radio->lock);
- retval = amradio_set_mute(radio, AMRADIO_START);
+ if (unlikely(!radio->initialized))
+ goto unlock;
+
+ if (radio->stereo)
+ retval = amradio_set_stereo(radio, WANT_STEREO);
+ else
+ retval = amradio_set_stereo(radio, WANT_MONO);
+
if (retval < 0)
- dev_warn(&intf->dev, "amradio_start failed\n");
+ amradio_dev_warn(&radio->videodev.dev, "set stereo failed\n");
+ retval = amradio_setfreq(radio, radio->curfreq);
+ if (retval < 0)
+ amradio_dev_warn(&radio->videodev.dev,
+ "set frequency failed\n");
+
+ if (!radio->muted) {
+ retval = amradio_set_mute(radio, AMRADIO_START);
+ if (retval < 0)
+ dev_warn(&radio->videodev.dev,
+ "amradio_start failed\n");
+ }
+
+unlock:
dev_info(&intf->dev, "coming out of suspend..\n");
mutex_unlock(&radio->lock);