V4L/DVB (7996): si470x: afc indication
This patch brings the following changes:
- afc indication:
device has no indication whether freq is too low or too high
therefore afc always return 1, when freq is wrong
Signed-off-by: Tobias Lorenz <tobias.lorenz@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/radio/radio-si470x.c b/drivers/media/radio/radio-si470x.c
index 954ba99..db9d64a 100644
--- a/drivers/media/radio/radio-si470x.c
+++ b/drivers/media/radio/radio-si470x.c
@@ -101,6 +101,7 @@
* - unplugging fixed
* 2008-05-07 Tobias Lorenz <tobias.lorenz@gmx.net>
* Version 1.0.8
+ * - afc indication
* - more safety checks, let si470x_get_freq return errno
*
* ToDo:
@@ -1390,7 +1391,8 @@
* 0x0101;
/* automatic frequency control: -1: freq to low, 1 freq to high */
- tuner->afc = 0;
+ /* AFCRL does only indicate that freq. differs, not if too low/high */
+ tuner->afc = (radio->registers[STATUSRSSI] & STATUSRSSI_AFCRL) ? 1 : 0;
done:
if (retval < 0)