On Fri, Jun 29, 2018 at 4:26 PM Geert Uytterhoeven
wrote:
> When the sh-sci driver detects an issue with DMA during operation, it
> falls backs to PIO, and releases all DMA resources.
>
> As releasing DMA resources immediately has no advantages, but
> complicates the code, and is susceptible to
When the sh-sci driver detects an issue with DMA during operation, it
falls backs to PIO, and releases all DMA resources.
As releasing DMA resources immediately has no advantages, but
complicates the code, and is susceptible to races, it is better to
postpone this to port shutdown.
This allows
