From: jassisinghbrar@gmail.com
To: dmaengine@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: vkoul@kernel.org, robh+dt@kernel.org,
masami.hiramatsu@linaro.org, orito.takao@socionext.com,
Jassi Brar <jaswinder.singh@linaro.org>
Subject: [PATCH v3 1/2] dt-bindings: milbeaut-m10v-hdmac: Add Socionext Milbeaut HDMAC bindings
Date: Mon, 9 Sep 2019 20:47:18 -0500 [thread overview]
Message-ID: <20190910014718.5832-1-jassisinghbrar@gmail.com> (raw)
In-Reply-To: <20190910014647.5782-1-jassisinghbrar@gmail.com>
From: Jassi Brar <jaswinder.singh@linaro.org>
Document the devicetree bindings for Socionext Milbeaut HDMAC
controller. Controller has upto 8 floating channels, that need
a predefined slave-id to work from a set of slaves.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
---
.../bindings/dma/milbeaut-m10v-hdmac.txt | 32 +++++++++++++++++++
1 file changed, 32 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt
diff --git a/Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt b/Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt
new file mode 100644
index 000000000000..1f0875bd5abc
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt
@@ -0,0 +1,32 @@
+* Milbeaut AHB DMA Controller
+
+Milbeaut AHB DMA controller has transfer capability below.
+ - device to memory transfer
+ - memory to device transfer
+
+Required property:
+- compatible: Should be "socionext,milbeaut-m10v-hdmac"
+- reg: Should contain DMA registers location and length.
+- interrupts: Should contain all of the per-channel DMA interrupts.
+ Number of channels is configurable - 2, 4 or 8, so
+ the number of interrupts specified should be {2,4,8}.
+- #dma-cells: Should be 1. Specify the ID of the slave.
+- clocks: Phandle to the clock used by the HDMAC module.
+
+
+Example:
+
+ hdmac1: dma-controller@1e110000 {
+ compatible = "socionext,milbeaut-m10v-hdmac";
+ reg = <0x1e110000 0x10000>;
+ interrupts = <0 132 4>,
+ <0 133 4>,
+ <0 134 4>,
+ <0 135 4>,
+ <0 136 4>,
+ <0 137 4>,
+ <0 138 4>,
+ <0 139 4>;
+ #dma-cells = <1>;
+ clocks = <&dummy_clk>;
+ };
--
2.17.1
next prev parent reply other threads:[~2019-09-10 1:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-10 1:46 [PATCH v3 0/2] Add support for AHB DMA controller on Milbeaut series jassisinghbrar
2019-09-10 1:47 ` jassisinghbrar [this message]
2019-09-10 1:47 ` [PATCH v3 2/2] dmaengine: milbeaut-hdmac: Add HDMAC driver for Milbeaut platforms jassisinghbrar
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