The patch number 11063 was added via Devin Heitmueller
<dheitmuel...@linuxtv.org>
to http://linuxtv.org/hg/v4l-dvb master development tree.
Kernel patches in this development tree may be modified to be backward
compatible with older kernels. Compatibility modifications will be
removed before inclusion into the mainstream Kernel
If anyone has any objections, please let us know by sending a message to:
Linux Media Mailing List <linux-me...@vger.kernel.org>
------
From: Devin Heitmueller <dheitmuel...@linuxtv.org>
au8522: power down the digital demod when not in use
When the au8522 is idle, put the chip into a low power mode (reduces power
consumption from 450ma to 346ma)
Thanks to Michael Krufky <mkru...@linuxtv.org> and Steven Toth
<st...@linuxtv.org> for providing sample hardware, engineering level support,
and testing.
Priority: normal
Signed-off-by: Devin Heitmueller <dheitmuel...@linuxtv.org>
Signed-off-by: Michael Krufky <mkru...@linuxtv.org>
---
linux/drivers/media/dvb/frontends/au8522_dig.c | 3 +++
1 file changed, 3 insertions(+)
diff -r 1ef12c6f7b20 -r 54237fcd0662
linux/drivers/media/dvb/frontends/au8522_dig.c
--- a/linux/drivers/media/dvb/frontends/au8522_dig.c Wed Mar 11 02:00:19
2009 -0400
+++ b/linux/drivers/media/dvb/frontends/au8522_dig.c Wed Mar 11 02:00:34
2009 -0400
@@ -617,6 +617,9 @@ int au8522_sleep(struct dvb_frontend *fe
/* turn off led */
au8522_led_ctrl(state, 0);
+ /* Power down the chip */
+ au8522_writereg(state, 0xa4, 1 << 5);
+
state->current_frequency = 0;
return 0;
---
Patch is available at:
http://linuxtv.org/hg/v4l-dvb/rev/54237fcd0662738ce2188b360133c30ea93bad51
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