63 lines
1.5 KiB
Diff
63 lines
1.5 KiB
Diff
From c2f59eeeee68bb66a3db8555474fe94e73b65b02 Mon Sep 17 00:00:00 2001
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From: Walker Chen <walker.chen@starfivetech.com>
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Date: Wed, 22 Mar 2023 17:48:17 +0800
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Subject: [PATCH 111/122] dt-bindings: dma: snps,dw-axi-dmac: constrain the
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items of resets for JH7110 dma
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The DMA controller needs two reset items to work properly on JH7110 SoC,
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so there is need to constrain the items' value to 2, other platforms
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have 1 reset item at most.
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Reviewed-by: Rob Herring <robh@kernel.org>
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Signed-off-by: Walker Chen <walker.chen@starfivetech.com>
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---
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.../bindings/dma/snps,dw-axi-dmac.yaml | 23 ++++++++++++++++++-
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1 file changed, 22 insertions(+), 1 deletion(-)
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--- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
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+++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
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@@ -21,6 +21,7 @@ properties:
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enum:
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- snps,axi-dma-1.01a
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- intel,kmb-axi-dma
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+ - starfive,jh7110-axi-dma
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reg:
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minItems: 1
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@@ -59,7 +60,8 @@ properties:
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maximum: 8
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resets:
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- maxItems: 1
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+ minItems: 1
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+ maxItems: 2
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snps,dma-masters:
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description: |
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@@ -110,6 +112,25 @@ required:
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- snps,priority
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- snps,block-size
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+if:
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+ properties:
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+ compatible:
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+ contains:
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+ enum:
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+ - starfive,jh7110-axi-dma
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+then:
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+ properties:
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+ resets:
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+ minItems: 2
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+ items:
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+ - description: AXI reset line
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+ - description: AHB reset line
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+ - description: module reset
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+else:
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+ properties:
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+ resets:
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+ maxItems: 1
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+
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additionalProperties: false
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examples:
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