Compatibility with rev. 2 devices.

[Krush206]

How does one proceed to get this kernel working on a rev. 2 (released after the second half of 2014) device? I got the CM 13 kernel compiled successfully. The device boots up normally, but I only get a black screen.

Thanks in advance.

[androidlover5842]

cm13 branch is for rev2

[Krush206]

That's the branch I've used. I've also tried the one from weritos' repository, didn't work either.
There might be something slightly different on rev. 2's kernel. Its original kernel is a couple of bytes higher than the one for rev. 1 devices.
However, I'm unable to figure out what and where is the issue; dmesg doesn't log any errors.

[Krush206]

I think the issue is related to the modules. Whenever I try to load them, it returns a Cannot execute binary file: Exec format error message.
I built the modules for the new compiled kernel, still aren't loadable. This time, I get errors such as insmod: failed to load cfg80211.ko: Bad address or c2 ath6kl_sdio: Unknown symbol cfg80211_sched_scan_results (err 0)

[Krush206]

After revising and adding features to the kernel for a couple months, I finally figured out the issue. Turns out NT35502's device tree wasn't set in the configuration file. After setting it, I don't get a black screen, anymore.
For those who want to build the kernel for such devices, here are the lines you must add to the configuration file:
CONFIG_FB_MSM_MIPI_DSI_NT35502=y
CONFIG_FB_MSM_MIPI_NT35502_VIDEO_WVGA_PT=y
CONFIG_FB_MSM_MIPI_NT35502_VIDEO_WVGA_PT_PANEL=y

[androidlover5842]

keep this issue open so others can see in future