Autodetect input's standard using field frequency detection
feature (FIDT in status byte at 0x1F) of the SAA7113.
Signed-off-by: Anatolij Gustschin <agust@xxxxxxx>
---
drivers/media/video/saa7115.c | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/saa7115.c b/drivers/media/video/saa7115.c
index 301c62b..f28a4c7 100644
--- a/drivers/media/video/saa7115.c
+++ b/drivers/media/video/saa7115.c
@@ -1348,6 +1348,18 @@ static int saa711x_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
int reg1e;
*std = V4L2_STD_ALL;
+
+ if (state->ident == V4L2_IDENT_SAA7113) {
+ int reg1f = saa711x_read(sd, R_1F_STATUS_BYTE_2_VD_DEC);
+
+ if (reg1f & 0x20)
+ *std = V4L2_STD_NTSC;
+ else
+ *std = V4L2_STD_PAL;
+
+ return 0;
+ }
+
if (state->ident != V4L2_IDENT_SAA7115)
return 0;
reg1e = saa711x_read(sd, R_1E_STATUS_BYTE_1_VD_DEC);
--
1.7.1
--
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