Some of the camera subsystems like camss in Qualcommm MSM chipsets require pixel clock support in camera sensor drivers for proper functioning. So, add a default pixel clock rate of 96MHz to OV5640 camera sensor driver.
According to the datasheet, 96MHz can be used as a pixel clock rate for most of the modes.
This patch has been validated on Dragonboard410c with OV5640 connected using D3 Camera Mezzanine.
Manivannan Sadhasivam (1): media: i2c: ov5640: Add pixel clock support
drivers/media/i2c/ov5640.c | 4 ++++ 1 file changed, 4 insertions(+)
Some of the camera subsystems like camss in Qualcommm MSM chipsets require pixel clock support in camera sensor drivers. So, this commit adds a default pixel clock rate of 96MHz to OV5640 camera sensor driver.
According to the datasheet, 96MHz can be used as a pixel clock rate for most of the modes.
Signed-off-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org --- drivers/media/i2c/ov5640.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c index 39a2269..7152c84 100644 --- a/drivers/media/i2c/ov5640.c +++ b/drivers/media/i2c/ov5640.c @@ -162,6 +162,7 @@ struct ov5640_ctrls { struct v4l2_ctrl *auto_gain; struct v4l2_ctrl *gain; }; + struct v4l2_ctrl *pixel_clock; struct v4l2_ctrl *brightness; struct v4l2_ctrl *saturation; struct v4l2_ctrl *contrast; @@ -2009,6 +2010,9 @@ static int ov5640_init_controls(struct ov5640_dev *sensor) ctrls->gain = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_GAIN, 0, 1023, 1, 0);
+ /* Pixel clock (default of 96MHz) */ + ctrls->pixel_clock = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_PIXEL_RATE, + 1, INT_MAX, 1, 96000000); ctrls->saturation = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_SATURATION, 0, 255, 1, 64); ctrls->hue = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_HUE,
dragonboard@lists.96boards.org
-
Manivannan Sadhasivam