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dt-bindings: dma: dw-axi-dmac: extend the number of interrupts

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The Canaan k210 apparently has a Sysnopsys Designware AXI DMA
controller, but according to the documentation & devicetree it has 6
interrupts rather than the standard one. Support the 6 interrupt
configuration by unconditionally extending the binding to a maximum of
8 per-channel interrupts thereby matching the number of possible
channels.

Link: https://canaan-creative.com/wp-content/uploads/2020/03/kendryte_standalone_programming_guide_20190311144158_en.pdf #Page 51
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220705215213.1802496-4-mail@conchuod.ie
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Conor Dooley 2022-07-05 22:52:04 +01:00 committed by Vinod Koul
parent 6bc7ea3c9b
commit 4ce653d7c6
1 changed files with 6 additions and 1 deletions
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7
Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
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@ -34,7 +34,12 @@ properties:
- const: axidma_apb_regs
interrupts:
maxItems: 1
description:
If the IP-core synthesis parameter DMAX_INTR_IO_TYPE is set to 1, this
will be per-channel interrupts. Otherwise, this is a single combined IRQ
for all channels.
minItems: 1
maxItems: 8
clocks:
items: