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Commit 3a03ea76 authored by Jean-Francois Moine's avatar Jean-Francois Moine Committed by Vinod Koul
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dmaengine: sun6i: Add support for Allwinner A83T (sun8i) variant 



The A83T SoC has the same dma engine as the A31 (sun6i), with a reduced
amount of endpoints and physical channels.

Signed-off-by: default avatarJean-Francois Moine <moinejf@free.fr>
Acked-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 34681d84

Documentation/devicetree/bindings/dma/sun6i-dma.txt

+1 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ Required properties: 
- compatible:	Must be one of

		  "allwinner,sun6i-a31-dma"

		  "allwinner,sun8i-a23-dma"

		  "allwinner,sun8i-a83t-dma"

		  "allwinner,sun8i-h3-dma"

- reg:		Should contain the registers base address and length

- interrupts:	Should contain a reference to the interrupt used by this device

drivers/dma/sun6i-dma.c

+7 −0
Original line number Diff line number Diff line
@@ -1011,6 +1011,12 @@ static struct sun6i_dma_config sun8i_a23_dma_cfg = { 
	.nr_max_vchans   = 37,

};



static struct sun6i_dma_config sun8i_a83t_dma_cfg = {

	.nr_max_channels = 8,

	.nr_max_requests = 28,

	.nr_max_vchans   = 39,

};



/*

 * The H3 has 12 physical channels, a maximum DRQ port id of 27,

 * and a total of 34 usable source and destination endpoints.
@@ -1025,6 +1031,7 @@ static struct sun6i_dma_config sun8i_h3_dma_cfg = { 
static const struct of_device_id sun6i_dma_match[] = {

	{ .compatible = "allwinner,sun6i-a31-dma", .data = &sun6i_a31_dma_cfg },

	{ .compatible = "allwinner,sun8i-a23-dma", .data = &sun8i_a23_dma_cfg },

	{ .compatible = "allwinner,sun8i-a83t-dma", .data = &sun8i_a83t_dma_cfg },

	{ .compatible = "allwinner,sun8i-h3-dma", .data = &sun8i_h3_dma_cfg },

	{ /* sentinel */ }

};