Boosted CSI clock

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Hi,

I am using a Texas Instruments DS90UB953/UB954 combination ( ie. FPD-Link III ) together with an IMX290 sensor module.

Since the R32.1 kernel, this combination only works if I boost the CSI clocks according to the debug tips from this guide:

[url]https://elinux.org/Jetson_TX2_Camera_BringUp[/url]

Since this is a debug only feature, what does this mean for my production driver? Is there an “official” way to specify such clock requirements?

2

hello arne.caspari,

CSI clock configuration refer to device tree settings, you should review your serdes_pix_clk_hz property settings. SerDes pixel clock must be specified correctly to configure the SoC-camera interface correctly and avoid buffer overrun issues.
please also access Sensor Driver Programming Guide and check the [SerDes Pixel Clock] session.
thanks