The Allwinner A31 has a 16 channels DMA controller that it shares with the(snip)
newer A23. Although sharing some similarities with the DMA controller of the
older Allwinner SoCs, it's significantly different, I don't expect it to be
possible to share the driver for these two.
The A31 Controller is able to memory-to-memory or memory-to-device transfers on
the 16 channels in parallel.
Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
---
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 5c5863842de9..360a10c71388 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -361,6 +361,14 @@ config FSL_EDMA
multiplexing capability for DMA request sources(slot).
This module can be found on Freescale Vybrid and LS-1 SoCs.
+config DMA_SUN6I
+ tristate "Allwinner A31 SoCs DMA support"
+ depends on ARCH_SUNXI
+ select DMA_ENGINE
+ select DMA_VIRTUAL_CHANNELS
+ help
+ Support for the DMA engine for Allwinner A31 SoCs.
+
config DMA_ENGINE
bool