Using OV5642 sensor driver for CM8206-A500SA-E

Hi,

I'm trying to use mainline ov5642 driver for ov5642 based camera module CM8206-A500SA-E from TRULY. The driver loads and initializes the sensor, but the initialization seems to be incomplete, the sensor doesn't generate pixel clock and sync signals.

For a quick test I've replaced the default initialisation sequences from ov5642_default_regs_init[] and ov5642_default_regs_finalise[] with an init sequence in ov5642_setting_30fps_720P_1280_720[] taken from Freescale ov5642 driver [1] and commented out ov5642_set_resolution() in ov5642_s_power(). With these changes to the mainline driver the sensor starts clocking out pixels and I receive 1280x720 image.

Is anyone using the mainline ov5642 driver for mentioned TRULY camera module? Just wanted to ask before digging further to find out what changes to the mainline driver are really needed to make it working with TRULY camera module.

Thanks,
Anatolij

[1] http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/plain/drivers/media/video/mxc/capture/ov5642.c?h=imx_3.0.15

Hi Anatolij,

if I remember correctly I had the same issue inverted. For me the initialization sequence of the freescale driver didn't work. Generally it was quite difficult to deduce anything from the docs to split the initialization into sensible parts. Too many parts were undocumented or didn't work as expected. Maybe there are different hardware revisions out there that need a different register setup. Unfortunately I can only give you some general notes here as I no longer possess an OV5642.

Good luck,

Bastian

2012/11/6 Anatolij Gustschin <[email protected]>

Hi Bastian,

Okay, thanks for the info anyway!

Anatolij