media: mt9m001: support log_status ioctl and event interface

This adds log_status ioctl and event interface for mt9m001's v4l2 controls.

Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/media/i2c/mt9m001.c b/drivers/media/i2c/mt9m001.c
index 94c9919..479e42d 100644 (file)
--- a/drivers/media/i2c/mt9m001.c
+++ b/drivers/media/i2c/mt9m001.c
@@ -17,6 +17,7 @@
 
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
+#include <media/v4l2-event.h>
 #include <media/v4l2-subdev.h>
 
 /*
@@ -632,6 +633,9 @@ static const struct v4l2_ctrl_ops mt9m001_ctrl_ops = {
 };
 
 static const struct v4l2_subdev_core_ops mt9m001_subdev_core_ops = {
+       .log_status = v4l2_ctrl_subdev_log_status,
+       .subscribe_event = v4l2_ctrl_subdev_subscribe_event,
+       .unsubscribe_event = v4l2_event_subdev_unsubscribe,
 #ifdef CONFIG_VIDEO_ADV_DEBUG
        .g_register     = mt9m001_g_register,
        .s_register     = mt9m001_s_register,
@@ -720,7 +724,8 @@ static int mt9m001_probe(struct i2c_client *client,
                return PTR_ERR(mt9m001->reset_gpio);
 
        v4l2_i2c_subdev_init(&mt9m001->subdev, client, &mt9m001_subdev_ops);
-       mt9m001->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+       mt9m001->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
+                                V4L2_SUBDEV_FL_HAS_EVENTS;
        v4l2_ctrl_handler_init(&mt9m001->hdl, 4);
        v4l2_ctrl_new_std(&mt9m001->hdl, &mt9m001_ctrl_ops,
                        V4L2_CID_VFLIP, 0, 1, 1, 0);