[media] saa7115: add config flag to change the IDQ polarity
Needed by the go7007 driver: it assumes a different polarity of the IDQ
signal, so we need to be able to tell the saa7115 about this.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/i2c/saa7115.c b/drivers/media/i2c/saa7115.c
index 5d9d033..c3e7e12 100644
--- a/drivers/media/i2c/saa7115.c
+++ b/drivers/media/i2c/saa7115.c
@@ -1259,6 +1259,12 @@
(saa711x_read(sd, R_83_X_PORT_I_O_ENA_AND_OUT_CLK) & 0xfe) |
(state->output & 0x01));
}
+ if (state->ident > V4L2_IDENT_SAA7111A) {
+ if (config & SAA7115_IDQ_IS_DEFAULT)
+ saa711x_write(sd, R_85_I_PORT_SIGNAL_POLAR, 0x20);
+ else
+ saa711x_write(sd, R_85_I_PORT_SIGNAL_POLAR, 0x21);
+ }
return 0;
}