Implement the get_mbus_config callback.
ov7740 is a parallel sensor, and according to datasheet, the register
REG12 controls the CCIR656 mode. This register is written to 0 in yuyv mode.
According to REG12[5] , CCIR656 mode, the behavior is:
CCIR656: disabled
REG28 controls the polarity of the signals. This register is unused.
The default behavior is then:
HSYNC polarity : positive
VSYNC polarity : positive
HREF polarity: positive
Signed-off-by: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx>
---
drivers/media/i2c/ov7740.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/media/i2c/ov7740.c b/drivers/media/i2c/ov7740.c
index 2539cfee85c8..f8a717aecb6f 100644
--- a/drivers/media/i2c/ov7740.c
+++ b/drivers/media/i2c/ov7740.c
@@ -873,12 +873,26 @@ static int ov7740_get_fmt(struct v4l2_subdev *sd,
return ret;
}
+static int ov7740_get_mbus_config(struct v4l2_subdev *sd,
+ unsigned int pad,
+ struct v4l2_mbus_config *cfg)
+{
+ cfg->type = V4L2_MBUS_PARALLEL;
+ cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_HSYNC_ACTIVE_HIGH |
+ V4L2_MBUS_VSYNC_ACTIVE_HIGH |
+ V4L2_MBUS_PCLK_SAMPLE_RISING |
+ V4L2_MBUS_FIELD_EVEN_LOW | V4L2_MBUS_DATA_ACTIVE_HIGH;
+
+ return 0;
+}
+
static const struct v4l2_subdev_pad_ops ov7740_subdev_pad_ops = {
.enum_frame_interval = ov7740_enum_frame_interval,
.enum_frame_size = ov7740_enum_frame_size,
.enum_mbus_code = ov7740_enum_mbus_code,
.get_fmt = ov7740_get_fmt,
.set_fmt = ov7740_set_fmt,
+ .get_mbus_config = ov7740_get_mbus_config,
};
static const struct v4l2_subdev_ops ov7740_subdev_ops = {
--
2.25.1
