diff options
| -rw-r--r-- | drivers/media/i2c/mt9v032.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/drivers/media/i2c/mt9v032.c b/drivers/media/i2c/mt9v032.c index 4ba4884..2203a6f 100644 --- a/drivers/media/i2c/mt9v032.c +++ b/drivers/media/i2c/mt9v032.c @@ -122,6 +122,7 @@ struct mt9v032 { struct v4l2_mbus_framefmt format; struct v4l2_rect crop; + struct v4l2_ctrl *pixel_rate; struct v4l2_ctrl_handler ctrls; struct mutex power_lock; @@ -187,13 +188,15 @@ mt9v032_update_aec_agc(struct mt9v032 *mt9v032, u16 which, int enable) return 0; } +#define EXT_CLK 25000000 + static int mt9v032_power_on(struct mt9v032 *mt9v032) { struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev); int ret; if (mt9v032->pdata->set_clock) { - mt9v032->pdata->set_clock(&mt9v032->subdev, 25000000); + mt9v032->pdata->set_clock(&mt9v032->subdev, EXT_CLK); udelay(1); } @@ -365,6 +368,17 @@ static int mt9v032_get_format(struct v4l2_subdev *subdev, return 0; } +static void mt9v032_configure_pixel_rate(struct mt9v032 *mt9v032, + unsigned int hratio) +{ + struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev); + int ret; + + ret = v4l2_ctrl_s_ctrl_int64(mt9v032->pixel_rate, EXT_CLK / hratio); + if (ret < 0) + dev_warn(&client->dev, "failed to set pixel rate (%d)\n", ret); +} + static int mt9v032_set_format(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh, struct v4l2_subdev_format *format) @@ -395,6 +409,8 @@ static int mt9v032_set_format(struct v4l2_subdev *subdev, format->which); __format->width = __crop->width / hratio; __format->height = __crop->height / vratio; + if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) + mt9v032_configure_pixel_rate(mt9v032, hratio); format->format = *__format; @@ -450,6 +466,8 @@ static int mt9v032_set_crop(struct v4l2_subdev *subdev, crop->which); __format->width = rect.width; __format->height = rect.height; + if (crop->which == V4L2_SUBDEV_FORMAT_ACTIVE) + mt9v032_configure_pixel_rate(mt9v032, 1); } *__crop = rect; @@ -598,6 +616,8 @@ static int mt9v032_registered(struct v4l2_subdev *subdev) dev_info(&client->dev, "MT9V032 detected at address 0x%02x\n", client->addr); + mt9v032_configure_pixel_rate(mt9v032, 1); + return ret; } @@ -681,7 +701,7 @@ static int mt9v032_probe(struct i2c_client *client, mutex_init(&mt9v032->power_lock); mt9v032->pdata = client->dev.platform_data; - v4l2_ctrl_handler_init(&mt9v032->ctrls, ARRAY_SIZE(mt9v032_ctrls) + 4); + v4l2_ctrl_handler_init(&mt9v032->ctrls, ARRAY_SIZE(mt9v032_ctrls) + 5); v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops, V4L2_CID_AUTOGAIN, 0, 1, 1, 1); @@ -695,6 +715,9 @@ static int mt9v032_probe(struct i2c_client *client, V4L2_CID_EXPOSURE, MT9V032_TOTAL_SHUTTER_WIDTH_MIN, MT9V032_TOTAL_SHUTTER_WIDTH_MAX, 1, MT9V032_TOTAL_SHUTTER_WIDTH_DEF); + mt9v032->pixel_rate = + v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops, + V4L2_CID_PIXEL_RATE, 0, 0, 1, 0); for (i = 0; i < ARRAY_SIZE(mt9v032_ctrls); ++i) v4l2_ctrl_new_custom(&mt9v032->ctrls, &mt9v032_ctrls[i], NULL); |