diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/i2c/st-mipid02.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/media/i2c/st-mipid02.c b/drivers/media/i2c/st-mipid02.c index 9369f38dbf3d..8623f3085b67 100644 --- a/drivers/media/i2c/st-mipid02.c +++ b/drivers/media/i2c/st-mipid02.c @@ -331,6 +331,25 @@ static int mipid02_detect(struct mipid02_dev *bridge) return mipid02_read_reg(bridge, MIPID02_CLK_LANE_WR_REG1, ®); } +static u32 mipid02_get_link_freq_from_cid_link_freq(struct mipid02_dev *bridge, + struct v4l2_subdev *subdev) +{ + struct v4l2_querymenu qm = {.id = V4L2_CID_LINK_FREQ, }; + struct v4l2_ctrl *ctrl; + int ret; + + ctrl = v4l2_ctrl_find(subdev->ctrl_handler, V4L2_CID_LINK_FREQ); + if (!ctrl) + return 0; + qm.index = v4l2_ctrl_g_ctrl(ctrl); + + ret = v4l2_querymenu(subdev->ctrl_handler, &qm); + if (ret) + return 0; + + return qm.value; +} + static u32 mipid02_get_link_freq_from_cid_pixel_rate(struct mipid02_dev *bridge, struct v4l2_subdev *subdev) { @@ -358,10 +377,14 @@ static int mipid02_configure_from_rx_speed(struct mipid02_dev *bridge) struct v4l2_subdev *subdev = bridge->s_subdev; u32 link_freq; - link_freq = mipid02_get_link_freq_from_cid_pixel_rate(bridge, subdev); + link_freq = mipid02_get_link_freq_from_cid_link_freq(bridge, subdev); if (!link_freq) { - dev_err(&client->dev, "Failed to detect link frequency"); - return -EINVAL; + link_freq = mipid02_get_link_freq_from_cid_pixel_rate(bridge, + subdev); + if (!link_freq) { + dev_err(&client->dev, "Failed to get link frequency"); + return -EINVAL; + } } dev_dbg(&client->dev, "detect link_freq = %d Hz", link_freq); |