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From: Green Wan <green.wan@sifive.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Green Wan <green.wan@sifive.com>, Vinod Koul <vkoul@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Dan Williams <dan.j.williams@intel.com>,
	Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>,
	"Paul E. McKenney" <paulmck@linux.ibm.com>,
	Bin Meng <bmeng.cn@gmail.com>, Yash Shah <yash.shah@sifive.com>,
	Sagar Kadam <sagar.kadam@sifive.com>,
	dmaengine@vger.kernel.org, devicetree@vger.kernel.org,
	linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v6 1/4] dt-bindings: dmaengine: sf-pdma: add bindins for SiFive PDMA
Date: Thu,  7 Nov 2019 16:49:19 +0800
Message-ID: <20191107084955.7580-2-green.wan@sifive.com> (raw)
In-Reply-To: <20191107084955.7580-1-green.wan@sifive.com>

Add DT bindings document for Platform DMA(PDMA) driver of board,
HiFive Unleashed Rev A00.

Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Signed-off-by: Green Wan <green.wan@sifive.com>
---
 .../bindings/dma/sifive,fu540-c000-pdma.yaml  | 55 +++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml

diff --git a/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml b/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml
new file mode 100644
index 000000000000..2ca3ddbe1ff4
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/sifive,fu540-c000-pdma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SiFive Unleashed Rev C000 Platform DMA
+
+maintainers:
+  - Green Wan <green.wan@sifive.com>
+  - Palmer Debbelt <palmer@sifive.com>
+  - Paul Walmsley <paul.walmsley@sifive.com>
+
+description: |
+  Platform DMA is a DMA engine of SiFive Unleashed. It supports 4
+  channels. Each channel has 2 interrupts. One is for DMA done and
+  the other is for DME error.
+
+  In different SoC, DMA could be attached to different IRQ line.
+  DT file need to be changed to meet the difference. For technical
+  doc,
+
+  https://static.dev.sifive.com/FU540-C000-v1.0.pdf
+
+properties:
+  compatible:
+    items:
+      - const: sifive,fu540-c000-pdma
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    minItems: 1
+    maxItems: 8
+
+  '#dma-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - '#dma-cells'
+
+examples:
+  - |
+    dma@3000000 {
+      compatible = "sifive,fu540-c000-pdma";
+      reg = <0x0 0x3000000 0x0 0x8000>;
+      interrupts = <23 24 25 26 27 28 29 30>;
+      #dma-cells = <1>;
+    };
+
+...
-- 
2.17.1


  reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-07  8:49 [PATCH v6 0/4] dmaengine: sf-pdma: Add platform dma driver Green Wan
2019-11-07  8:49 ` Green Wan [this message]
2019-11-07  8:49 ` [PATCH v6 2/4] riscv: dts: add support for PDMA device of HiFive Unleashed Rev A00 Green Wan
2019-11-07  8:49 ` [PATCH v6 3/4] dmaengine: sf-pdma: add platform DMA support for HiFive Unleashed A00 Green Wan
2019-11-07  8:49 ` [PATCH v6 4/4] MAINTAINERS: Add Green as SiFive PDMA driver maintainer Green Wan

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