Hikey960 enable SPI DMA mode


I want to use SPI in DMA mode on the Hikey960, I have enabled CONFIG_DMA_ENGINE=y, however, the SPI still uses polling.

I noticed there was a bug report (https://bugs.96boards.org/show_bug.cgi?id=555) on this, however it has not been updated in a very long time.

Could this be chased up?

Many thanks