Messages in this thread Patch in this message | | | From | Conor Dooley <> | Subject | [PATCH v5 03/13] dt-bindings: dma: dw-axi-dmac: extend the number of interrupts | Date | Tue, 5 Jul 2022 22:52:04 +0100 |
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From: Conor Dooley <conor.dooley@microchip.com>
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> --- .../devicetree/bindings/dma/snps,dw-axi-dmac.yaml | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml index 4324a94b26b2..67aa7bb6d36a 100644 --- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml +++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml @@ -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: -- 2.37.0
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