Re: omap3-isp driver in CSI2 mode

Re: omap3-isp driver in CSI2 mode

[Laurent Pinchart]

Hi Michael,

(Removing linux-sh and dridevel from the CC list as they're not related)

On Tuesday 17 June 2014 12:00:52 Михайло Новотний wrote:
> Hi Laurent Pinchart!
> 
> I'm working on multimedia project. And use processor DM3730.
> Now I am try capture image from sensor OV5640 over MIPI interface.
> I can see that you are author of omap3-isp driver for linux-2.6.37.
> I spent more then month try do it, but can't do it.
> 
> I asked on TI forum:
> http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/537/p/33699
> 1/1182836.aspx#1182836
> http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/537/p/3030
> 66/1220093.aspx#1220093
> 
> Is your driver really can work on DM3730 in CSI2 mode? Did you test it on
> DM3730?

The OMAP3 ISP driver present in the mainline kernel supports the CSI2 
receiver. However, the CSI2 interface is not officially available on the 
DM3730. I have seen reports claiming that the interface is present in the 
DM3730, but I haven't tested it myself due to lack of hardware.

-- 
Regards,

Laurent Pinchart

Re: omap3-isp driver in CSI2 mode

[Laurent Pinchart]

Hi Michael,

On Tuesday 17 June 2014 16:07:20 Михайло Новотний wrote:
> Hi Laurent.
> 
> In my case, I don't receive any interrupts from CSI2 module
> 
> My post on Ti forum:
> http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/537/p/33699
> 1/1182836.aspx#1182836

Quoting your post:

> I find that I used incorrect data in mux init:
> omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
> on my board DM3730CBP100,
> I changedmux init to  omap3_mux_init(board_mux, OMAP_PACKAGE_CBP);
> Now CSI2 interrupts occur.
> 
> But now I have another problem.
> When I start stream, I always recive error:
> [   83.435546] omap3isp omap3isp: CSI2: ComplexIO Error IRQ 10000
> [   83.491149] omap3isp omap3isp: CSI2: ComplexIO Error IRQ 30000
> [   83.544158] omap3isp omap3isp: CSI2: ComplexIO Error IRQ 10000
> [   83.600830] omap3isp omap3isp: CSI2: ComplexIO Error IRQ 20000

According to the OMAP3 TRM, bits 16 and 17 indicate a control error for lane 2 
and 3 respectively. How many lanes does your sensor use, how are they routed, 
and how have you specified the OMAP3 ISP platform data in your board file ?

-- 
Regards,

Laurent Pinchart