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- --- a/Documentation/devicetree/bindings/dma/sun6i-dma.txt
- +++ b/Documentation/devicetree/bindings/dma/sun6i-dma.txt
- @@ -4,7 +4,10 @@ This driver follows the generic DMA bind
-
- Required properties:
-
- -- compatible: Must be "allwinner,sun6i-a31-dma" or "allwinner,sun8i-a23-dma"
- +- compatible: Must be one of
- + "allwinner,sun6i-a31-dma"
- + "allwinner,sun8i-a23-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
- - clocks: Should contain a reference to the parent AHB clock
- --- a/drivers/dma/sun6i-dma.c
- +++ b/drivers/dma/sun6i-dma.c
- @@ -891,9 +891,21 @@ static struct sun6i_dma_config sun8i_a23
- .nr_max_vchans = 37,
- };
-
- +/*
- + * The H3 has 12 physical channels, a maximum DRQ port id of 27,
- + * and a total of 34 usable source and destination endpoints.
- + */
- +
- +static struct sun6i_dma_config sun8i_h3_dma_cfg = {
- + .nr_max_channels = 12,
- + .nr_max_requests = 27,
- + .nr_max_vchans = 34,
- +};
- +
- 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-h3-dma", .data = &sun8i_h3_dma_cfg },
- { /* sentinel */ }
- };
-
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