target/linux/sunxi/patches-4.1/143-dmaengine-add-h3.patch

   1 --- a/Documentation/devicetree/bindings/dma/sun6i-dma.txt
   2 +++ b/Documentation/devicetree/bindings/dma/sun6i-dma.txt
   3 @@ -4,7 +4,10 @@ This driver follows the generic DMA bind
   4
   5  Required properties:
   6
   7 -- compatible:  Must be "allwinner,sun6i-a31-dma" or "allwinner,sun8i-a23-dma"
   8 +- compatible:  Must be one of
   9 +                 "allwinner,sun6i-a31-dma"
  10 +                 "allwinner,sun8i-a23-dma"
  11 +                 "allwinner,sun8i-h3-dma"
  12  - reg:         Should contain the registers base address and length
  13  - interrupts:  Should contain a reference to the interrupt used by this device
  14  - clocks:      Should contain a reference to the parent AHB clock
  15 --- a/drivers/dma/sun6i-dma.c
  16 +++ b/drivers/dma/sun6i-dma.c
  17 @@ -891,9 +891,21 @@ static struct sun6i_dma_config sun8i_a23
  18         .nr_max_vchans   = 37,
  19  };
  20
  21 +/*
  22 + * The H3 has 12 physical channels, a maximum DRQ port id of 27,
  23 + * and a total of 34 usable source and destination endpoints.
  24 + */
  25 +
  26 +static struct sun6i_dma_config sun8i_h3_dma_cfg = {
  27 +       .nr_max_channels = 12,
  28 +       .nr_max_requests = 27,
  29 +       .nr_max_vchans   = 34,
  30 +};
  31 +
  32  static const struct of_device_id sun6i_dma_match[] = {
  33         { .compatible = "allwinner,sun6i-a31-dma", .data = &sun6i_a31_dma_cfg },
  34         { .compatible = "allwinner,sun8i-a23-dma", .data = &sun8i_a23_dma_cfg },
  35 +       { .compatible = "allwinner,sun8i-h3-dma", .data = &sun8i_h3_dma_cfg },
  36         { /* sentinel */ }
  37  };
  38