linux-kernel - [PATCH 2/3] dmaengine: Extend the k3dma driver binding

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Message-ID: <1545978983-124360-2-git-send-email-hutenghui@huawei.com>
Date:   Fri, 28 Dec 2018 14:36:22 +0800
From:   h00249924 <hutenghui@...wei.com>
To:     <dmaengine@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
CC:     <suzhuangluan@...ilicon.com>, <kongfei@...ilicon.com>,
        <liyuequan@...ilicon.com>, <cash.qianli@...ilicon.com>,
        <huangli295@...ilicon.com>, <hantanglei@...wei.com>,
        <wangyoulin1@...ilicon.com>, <ninggaoyu@...ilicon.com>,
        <hanxiaolong3@...ilicon.com>,
        Youlin Wang <wwx575822@...esmail.huawei.com>,
        Vinod Koul <vkoul@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Subject: [PATCH 2/3] dmaengine: Extend the k3dma driver binding

From: Youlin Wang <wwx575822@...esmail.huawei.com>

Extend the k3dma driver binding to support hisi-asp hardware variants.

Signed-off-by: Youlin Wang <wwx575822@...esmail.huawei.com>
Signed-off-by: Tanglei Han <hantanglei@...wei.com>
Cc: Vinod Koul <vkoul@...nel.org>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>
---
 Documentation/devicetree/bindings/dma/k3dma.txt | 33 ++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/dma/k3dma.txt b/Documentation/devicetree/bindings/dma/k3dma.txt
index 4945aea..cd21b82 100644
--- a/Documentation/devicetree/bindings/dma/k3dma.txt
+++ b/Documentation/devicetree/bindings/dma/k3dma.txt
@@ -3,7 +3,9 @@
 See dma.txt first
 
 Required properties:
-- compatible: Should be "hisilicon,k3-dma-1.0"
+- compatible: Must be one of
+-		"hisilicon,k3-dma-1.0"
+-		"hisilicon,hisi-pcm-asp-dma-1.0"
 - reg: Should contain DMA registers location and length.
 - interrupts: Should contain one interrupt shared by all channel
 - #dma-cells: see dma.txt, should be 1, para number
@@ -43,3 +45,32 @@ For example, i2c0 read channel request line is 18, while write channel use 19
 			dma-names = "rx", "tx";
 		};
 
+
+
+
+Controller:
+		asp_dmac: asp_dmac@...4B000 {
+			compatible = "hisilicon,hisi-pcm-asp-dma-1.0";
+			reg = <0x0 0xe804b000 0x0 0x1000>;
+			#dma-cells = <1>;
+			dma-channels = <16>;
+			dma-requests = <32>;
+			dma-min-chan = <0>;
+			dma-used-chans = <0xFFFE>;
+			dma-share;
+			interrupts = <0 216 4>;
+			interrupt-names = "asp_dma_irq";
+			status = "ok";
+		};
+
+Client:
+		i2s2: hisi_i2s {
+			compatible = "hisilicon,hisi-i2s";
+			reg = <0x0 0xe804f800 0x0 0x400>,
+				<0x0 0xe804e000 0x0 0x400>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2s2_pmx_func &i2s2_cfg_func>;
+			dmas = <&asp_dmac 18 &asp_dmac 19>;
+			dma-names = "rx", "tx";
+			#sound-dai-cells = <0>;
+		};
-- 
1.9.1