gpmi-nand: Kernel hang on i.MX6SX

[Fabio Estevam]

Hi Han Xu,

I was working on a custom i.MX6SX-based board running mainline kernel,
and I faced a kernel hang while probing the GPMI NAND driver.

Applying your workaround from the NXP kernel avoids the hang:

https://source.codeaurora.org/external/imx/linux-imx/commit/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c?h=lf-5.15.y&id=d03eb99c393f8732f70a1d7d29a3b9c42cccbe48

What would be the correct fix for this that could be upstreamed?

Thanks,

Fabio Estevam