Set v4l2_subdev flags for a host driver to create a sub-device
node for the driver so the subdev can be directly configured
by applications. Add the subdev open() handler.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/media/video/s5p-fimc/mipi-csis.c | 22 ++++++++++++++++++++++
drivers/media/video/s5p-fimc/mipi-csis.h | 3 +++
2 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/s5p-fimc/mipi-csis.c b/drivers/media/video/s5p-fimc/mipi-csis.c
index 59d79bc..130335c 100644
--- a/drivers/media/video/s5p-fimc/mipi-csis.c
+++ b/drivers/media/video/s5p-fimc/mipi-csis.c
@@ -427,6 +427,23 @@ static int s5pcsis_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
return 0;
}
+static int s5pcsis_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+ struct v4l2_mbus_framefmt *format = v4l2_subdev_get_try_format(fh, 0);
+
+ format->colorspace = V4L2_COLORSPACE_JPEG;
+ format->code = s5pcsis_formats[0].code;
+ format->width = S5PCSIS_DEF_PIX_WIDTH;
+ format->height = S5PCSIS_DEF_PIX_HEIGHT;
+ format->field = V4L2_FIELD_NONE;
+
+ return 0;
+}
+
+static const struct v4l2_subdev_internal_ops s5pcsis_sd_internal_ops = {
+ .open = s5pcsis_open,
+};
+
static struct v4l2_subdev_core_ops s5pcsis_core_ops = {
.s_power = s5pcsis_s_power,
};
@@ -544,8 +561,13 @@ static int __devinit s5pcsis_probe(struct platform_device *pdev)
v4l2_subdev_init(&state->sd, &s5pcsis_subdev_ops);
state->sd.owner = THIS_MODULE;
strlcpy(state->sd.name, dev_name(&pdev->dev), sizeof(state->sd.name));
+ state->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
state->csis_fmt = &s5pcsis_formats[0];
+ state->format.code = s5pcsis_formats[0].code;
+ state->format.width = S5PCSIS_DEF_PIX_WIDTH;
+ state->format.height = S5PCSIS_DEF_PIX_HEIGHT;
+
state->pads[CSIS_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
state->pads[CSIS_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
ret = media_entity_init(&state->sd.entity,
diff --git a/drivers/media/video/s5p-fimc/mipi-csis.h b/drivers/media/video/s5p-fimc/mipi-csis.h
index f569133..2709286 100644
--- a/drivers/media/video/s5p-fimc/mipi-csis.h
+++ b/drivers/media/video/s5p-fimc/mipi-csis.h
@@ -19,4 +19,7 @@
#define CSIS_PAD_SOURCE 1
#define CSIS_PADS_NUM 2
+#define S5PCSIS_DEF_PIX_WIDTH 640
+#define S5PCSIS_DEF_PIX_HEIGHT 480
+
#endif
--
1.7.8
--
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