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X-Spam-Score: 0.0 (/) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-17.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Some DMA-350 integrations reserve channels for firmware or another processor. Allow the standard dma-channel-mask property so firmware can describe which channels Linux may use. DMA-350 implements at most eight channels, so one 32-bit cell is enough; limit the property to a single cell. Signed-off-by: Jelly Jia --- Documentation/devicetree/bindings/dma/arm,dma-350.yaml | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/dma/arm,dma-350.yaml b/Documentation/devicetree/bindings/dma/arm,dma-350.yaml index 43279878207c..98e7bb651210 100644 --- a/Documentation/devicetree/bindings/dma/arm,dma-350.yaml +++ b/Documentation/devicetree/bindings/dma/arm,dma-350.yaml @@ -43,6 +43,9 @@ properties: description: Optional reset line, where the integration exposes one. + dma-channel-mask: + maxItems: 1 + required: - compatible - reg -- 2.54.0