[PATCH v5 1/3] media: ov7670: Add entity pads initialization

[Wenyou Yang]

Add the media entity pads initialization.

Signed-off-by: Wenyou Yang <wenyou.y...@microchip.com>
---

Changes in v5: None
Changes in v4:
 - Fix the build error when not enabling Media Controller API option.

Changes in v3: None
Changes in v2: None

 drivers/media/i2c/ov7670.c | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/ov7670.c b/drivers/media/i2c/ov7670.c
index e88549f0e704..553945d4ca28 100644
--- a/drivers/media/i2c/ov7670.c
+++ b/drivers/media/i2c/ov7670.c
@@ -213,6 +213,9 @@ struct ov7670_devtype {
 struct ov7670_format_struct;  /* coming later */
 struct ov7670_info {
        struct v4l2_subdev sd;
+#if defined(CONFIG_MEDIA_CONTROLLER)
+       struct media_pad pad;
+#endif
        struct v4l2_ctrl_handler hdl;
        struct {
                /* gain cluster */
@@ -1688,14 +1691,27 @@ static int ov7670_probe(struct i2c_client *client,
        v4l2_ctrl_auto_cluster(2, &info->auto_exposure,
                               V4L2_EXPOSURE_MANUAL, false);
        v4l2_ctrl_cluster(2, &info->saturation);
+
+#if defined(CONFIG_MEDIA_CONTROLLER)
+       info->pad.flags = MEDIA_PAD_FL_SOURCE;
+       info->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+       ret = media_entity_pads_init(&info->sd.entity, 1, &info->pad);
+       if (ret < 0)
+               goto hdl_free;
+#endif
+
        v4l2_ctrl_handler_setup(&info->hdl);
 
        ret = v4l2_async_register_subdev(&info->sd);
        if (ret < 0)
-               goto hdl_free;
+               goto entity_cleanup;
 
        return 0;
 
+entity_cleanup:
+#if defined(CONFIG_MEDIA_CONTROLLER)
+       media_entity_cleanup(&info->sd.entity);
+#endif
 hdl_free:
        v4l2_ctrl_handler_free(&info->hdl);
 clk_disable:
@@ -1712,6 +1728,9 @@ static int ov7670_remove(struct i2c_client *client)
        v4l2_device_unregister_subdev(sd);
        v4l2_ctrl_handler_free(&info->hdl);
        clk_disable_unprepare(info->clk);
+#if defined(CONFIG_MEDIA_CONTROLLER)
+       media_entity_cleanup(&info->sd.entity);
+#endif
        return 0;
 }
 
-- 
2.13.0