dmaengine: dma: Add Hiedma Controller v310 Device Driver

Hisilicon EDMA Controller(EDMAC) directly transfers data
between a memory and a peripheral, between peripherals, or
between memories. This avoids the CPU intervention and reduces
the interrupt handling overhead of the CPU, this driver enables
this controller.

Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>

drivers/dma/Kconfig

@@ -355,6 +355,20 @@ config K3_DMA
 	  Support the DMA engine for Hisilicon K3 platform
 	  devices.
 
+config HIEDMACV310
+	tristate "Hisilicon EDMAC Controller support"
+	depends on ARCH_HISI
+	select DMA_ENGINE
+	select DMA_VIRTUAL_CHANNELS
+	help
+	  The Direction Memory Access(EDMA) is a high-speed data transfer
+	  operation. It supports data read/write between peripherals and
+	  memories without using the CPU.
+	  Hisilicon EDMA Controller(EDMAC) directly transfers data between
+	  a memory and a peripheral, between peripherals, or between memories.
+	  This avoids the CPU intervention and reduces the interrupt handling
+	  overhead of the CPU.
+
 config LPC18XX_DMAMUX
 	bool "NXP LPC18xx/43xx DMA MUX for PL080"
 	depends on ARCH_LPC18XX || COMPILE_TEST

drivers/dma/Makefile

@@ -83,6 +83,7 @@ obj-$(CONFIG_XGENE_DMA) += xgene-dma.o
 obj-$(CONFIG_ZX_DMA) += zx_dma.o
 obj-$(CONFIG_ST_FDMA) += st_fdma.o
 obj-$(CONFIG_FSL_DPAA2_QDMA) += fsl-dpaa2-qdma/
+obj-$(CONFIG_HIEDMACV310) += hiedmacv310.o
 
 obj-y += mediatek/
 obj-y += qcom/