Hi, In our system A10s (sun5i) with kernel 4.13 from sunxi-next branch we use SPI. Everything works but with SPI communication there is significantly increased CPU load. This made me think one possible reason could be that DMA isn't enabled in this case.
So what is the state of SPI DMA in this case? According to the kernel source it seems like that sun4i-spi is used for A10s. Is DMA working ? If not then any clues how it can be enabled or what is the current state? Cheers, Ishraq Ibne Ashraf -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
