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([51.37.234.167]) by smtp.gmail.com with ESMTPSA id g34-20020a05600c4ca200b0039c7dbafa7asm18353920wmp.19.2022.07.05.14.52.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 Jul 2022 14:52:27 -0700 (PDT) From: Conor Dooley To: David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Thierry Reding , Sam Ravnborg , Eugeniy Paltsev , Vinod Koul , Serge Semin , Daniel Lezcano , Palmer Dabbelt , Palmer Dabbelt Cc: Paul Walmsley , Albert Ou , Conor Dooley , Masahiro Yamada , Damien Le Moal , Geert Uytterhoeven , Niklas Cassel , Dillon Min , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, linux-riscv@lists.infradead.org, Rob Herring 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 Message-Id: <20220705215213.1802496-4-mail@conchuod.ie> X-Mailer: git-send-email 2.37.0 In-Reply-To: <20220705215213.1802496-1-mail@conchuod.ie> References: <20220705215213.1802496-1-mail@conchuod.ie> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220705_145230_333615_396CA4FA X-CRM114-Status: GOOD ( 11.83 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Conor Dooley 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 Reviewed-by: Rob Herring Signed-off-by: Conor Dooley --- .../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: