Quick question. My custom driver that I'm developing is failing in cf_axi_adc_core with error -16. I'm trying to follow the same format as the AD9361 driver, since my device will be somewhat similar. I've attached my device tree and a log file of the console output (I apologize about the size, I have all the debugging options turned on). I've also attached a screenshot of my Address Editor in Vivado.
Here are the relevant bits of the console output:
cf_axi_adc 43c00000.cf-narrowband-core: Device Tree Probing 'cf-narrowband-core'cf_axi_adc 43c00000.cf-narrowband-core: can't request region for resource [mem 0x43c00000-0x43c05fff]cf_axi_adc 43c00000.cf-narrowband-core: Could not map resource //(This is a custom message I put in)cf_axi_adc: probe of 43c00000.cf-narrowband-core failed with error -16
Any ideas? Its failing on the devm_ioremap_resource call. The only thing I can think of is maybe it has something to do with me disabling the DMA at the moment. But from my understanding, if I make sure dp_disable reads as true, then that should be a problem, but it fails before it even get to that part of the driver.
I still don't have a full grasp of what the cf_axi_adc_core driver does vs the AD9361 driver, so I may be approaching this completely wrong.
Let me know if there is any more information needed.
Thanks Lars, that did the trick. Looks like the answer was staring me in the face. "mwipcore" was also being initialized to reg 43C00000.