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Commit f892afb0 authored by Nicolin Chen's avatar Nicolin Chen Committed by Vinod Koul
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dmaengine: imx-sdma: Add a new DMATYPE for Shared Peripheral ASRC 



Shared Peripheral ASRC, running on SPBA, needs to use shp sciprts for
DMA transfer. So this patch just adds a new DMATYPE for it.

Signed-off-by: default avatarNicolin Chen <nicoleotsuka@gmail.com>
Acked-by: default avatarShawn Guo <shawn.guo@linaro.org>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 0b351865

Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt

+1 −0
Original line number Diff line number Diff line
@@ -47,6 +47,7 @@ The full ID of peripheral types can be found below. 
	20	ASRC

	21	ESAI

	22	SSI Dual FIFO	(needs firmware ver >= 2)

	23	Shared ASRC



The third cell specifies the transfer priority as below.

drivers/dma/imx-sdma.c

+5 −0
Original line number Diff line number Diff line
@@ -750,6 +750,11 @@ static void sdma_get_pc(struct sdma_channel *sdmac, 
		emi_2_per = sdma->script_addrs->asrc_2_mcu_addr;

		per_2_per = sdma->script_addrs->per_2_per_addr;

		break;

	case IMX_DMATYPE_ASRC_SP:

		per_2_emi = sdma->script_addrs->shp_2_mcu_addr;

		emi_2_per = sdma->script_addrs->mcu_2_shp_addr;

		per_2_per = sdma->script_addrs->per_2_per_addr;

		break;

	case IMX_DMATYPE_MSHC:

		per_2_emi = sdma->script_addrs->mshc_2_mcu_addr;

		emi_2_per = sdma->script_addrs->mcu_2_mshc_addr;

include/linux/platform_data/dma-imx.h

+1 −0
Original line number Diff line number Diff line
@@ -40,6 +40,7 @@ enum sdma_peripheral_type { 
	IMX_DMATYPE_ASRC,	/* ASRC */

	IMX_DMATYPE_ESAI,	/* ESAI */

	IMX_DMATYPE_SSI_DUAL,	/* SSI Dual FIFO */

	IMX_DMATYPE_ASRC_SP,	/* Shared ASRC */

};



enum imx_dma_prio {