Add enum_mbus_code ioctl so that user space can know what
formats are supported to csi2rx.
Signed-off-by: Changhuang Liang <changhuang.liang@xxxxxxxxxxxxxxxx>
---
drivers/media/platform/cadence/cdns-csi2rx.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c
index 889f4fbbafb3..7788ce0e3171 100644
--- a/drivers/media/platform/cadence/cdns-csi2rx.c
+++ b/drivers/media/platform/cadence/cdns-csi2rx.c
@@ -389,6 +389,18 @@ static int csi2rx_s_stream(struct v4l2_subdev *subdev, int enable)
return ret;
}
+static int csi2rx_enum_mbus_code(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_mbus_code_enum *code_enum)
+{
+ if (code_enum->index >= ARRAY_SIZE(formats))
+ return -EINVAL;
+
+ code_enum->code = formats[code_enum->index].code;
+
+ return 0;
+}
+
static int csi2rx_set_fmt(struct v4l2_subdev *subdev,
struct v4l2_subdev_state *state,
struct v4l2_subdev_format *format)
@@ -439,6 +451,7 @@ static int csi2rx_init_cfg(struct v4l2_subdev *subdev,
}
static const struct v4l2_subdev_pad_ops csi2rx_pad_ops = {
+ .enum_mbus_code = csi2rx_enum_mbus_code,
.get_fmt = v4l2_subdev_get_fmt,
.set_fmt = csi2rx_set_fmt,
.init_cfg = csi2rx_init_cfg,
--
2.25.1
