From 59d7889ae49f6e3e9d9cff8c0de7ad95d9ca068b Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 9 Aug 2014 21:47:19 -0300
Subject: [media] dvb-frontend: add core support for tuner suspend/resume
While several tuners have some sort of suspend/resume
implementation, this is currently mangled with an optional
.sleep callback that it is also used to put the device on
low power mode.
Not all drivers implement it, as returning the driver from
low power may require to re-load the firmware, with takes
some time. Also, some drivers may delay it.
So, the more coherent is to add two new optional callbacks
that will let the tuners to directy implement suspend and
resume callbacks if they need.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
drivers/media/v4l2-core/tuner-core.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
(limited to 'drivers/media/v4l2-core/tuner-core.c')
diff --git a/drivers/media/v4l2-core/tuner-core.c b/drivers/media/v4l2-core/tuner-core.c
index 06c18ba16fa..17702320073 100644
--- a/drivers/media/v4l2-core/tuner-core.c
+++ b/drivers/media/v4l2-core/tuner-core.c
@@ -1260,7 +1260,9 @@ static int tuner_suspend(struct device *dev)
tuner_dbg("suspend\n");
- if (!t->standby && analog_ops->standby)
+ if (t->fe.ops.tuner_ops.suspend)
+ t->fe.ops.tuner_ops.suspend(&t->fe);
+ else if (!t->standby && analog_ops->standby)
analog_ops->standby(&t->fe);
return 0;
@@ -1273,7 +1275,9 @@ static int tuner_resume(struct device *dev)
tuner_dbg("resume\n");
- if (!t->standby)
+ if (t->fe.ops.tuner_ops.resume)
+ t->fe.ops.tuner_ops.resume(&t->fe);
+ else if (!t->standby)
if (set_mode(t, t->mode) == 0)
set_freq(t, 0);
--
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