[PATCH v3 1/3] dt-bindings: dma: snps,dw-axi-dmac: constrain minItems/maxItems of resets for JH7110 DMA
flat view
STALE1334d
SUPERSEDED
From: Walker Chen <walker.chen@starfivetech.com>
Date: 2023-02-27 13:11:07
Also in:
dmaengine, linux-riscv, lkml
Subsystem:
dma generic offload engine subsystem, open firmware and flattened device tree bindings, synopsys designware axi dmac driver, the rest · Maintainers:
Vinod Koul, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Eugeniy Paltsev, Linus Torvalds
Status: Superseded by v6 (posted 2023-03-22). [go to v6]
Revision v3 (6 revisions archived).
Revisions (6)
The DMA controller needs two reset items to work properly on JH7110 SoC, so there is need to change the maxItems' value to 2 and add minItems whose value is equal to 1. Other platforms do not have this constraint. Signed-off-by: Walker Chen <walker.chen@starfivetech.com> --- .../bindings/dma/snps,dw-axi-dmac.yaml | 25 ++++++++++++++++--- 1 file changed, 21 insertions(+), 4 deletions(-)
diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
index ad107a4d3b33..4ed0a6b7ca69 100644
--- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
+++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml@@ -12,14 +12,12 @@ maintainers: description: Synopsys DesignWare AXI DMA Controller DT Binding -allOf: - - $ref: "dma-controller.yaml#" - properties: compatible: enum: - snps,axi-dma-1.01a - intel,kmb-axi-dma + - starfive,jh7110-axi-dma reg: minItems: 1
@@ -58,7 +56,8 @@ properties: maximum: 8 resets: - maxItems: 1 + minItems: 1 + maxItems: 2 snps,dma-masters: description: |
@@ -109,6 +108,24 @@ required: - snps,priority - snps,block-size +allOf: + - $ref: "dma-controller.yaml#" + - if: + properties: + compatible: + contains: + enum: + - starfive,jh7110-axi-dma + then: + properties: + resets: + minItems: 1 + maxItems: 2 + else: + properties: + resets: + maxItems: 1 + additionalProperties: false examples:
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2.17.1