Move drivers/staging/mt7621-spi/spi-mt7621.c out of staging ?

[Stefan Roese <sr@xxxxxxx>]

Hi!

I'm wondering about the current status of the staging SPI driver
for the MIPS MT7621 (MT7628/88). Are there any plans to pull this
driver into "drivers/spi" soon? If not, what is blocking this
integration?

FWIW, I just tested this driver on our MT7688 based platform with
SPI NOR on CS0 and SPI NAND on CS1 and it works just fine.

Please let me know if there is anything that I can do to help here.

Thanks,
Stefan