ENGR00177310-3 v4l2 capture: enable mclk when open function

Enable mclk when opening v4l2 capture device and disable
mclk when closing v4l2 capture device.
If mclk is disabled when operating MIPI camera, the test
is failed.

Signed-off-by: Lily Zhang <r58066@freescale.com>

diff --git a/drivers/media/video/mxc/capture/mxc_v4l2_capture.c b/drivers/media/video/mxc/capture/mxc_v4l2_capture.c
index d775c2c937557791b891371b1a41aed8d8dd0fab..03864a81920166b84baf2aa58f40e75af105f219 100644 (file)
--- a/drivers/media/video/mxc/capture/mxc_v4l2_capture.c
+++ b/drivers/media/video/mxc/capture/mxc_v4l2_capture.c
@@ -1667,9 +1667,6 @@ static int mxc_v4l_open(struct file *file)
                ipu_csi_enable_mclk_if(cam->ipu, CSI_MCLK_I2C, cam->csi,
                                       true, true);
                vidioc_int_init(cam->sensor);
-
-               ipu_csi_enable_mclk_if(cam->ipu, CSI_MCLK_I2C, cam->csi,
-                                      false, false);
 }
 
        file->private_data = dev;
@@ -1711,6 +1708,9 @@ static int mxc_v4l_close(struct file *file)
        }
 
        if (--cam->open_count == 0) {
+               ipu_csi_enable_mclk_if(cam->ipu, CSI_MCLK_I2C, cam->csi,
+                       false, false);
+
                wait_event_interruptible(cam->power_queue,
                                         cam->low_power == false);
                pr_info("mxc_v4l_close: release resource\n");