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

h00249924
2018-12-28T06:39:16Z

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

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

Signed-off-by: Youlin Wang <wwx575822@notesmail.huawei.com>
Signed-off-by: Tanglei Han <hantanglei@huawei.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.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@E804B000 {
+ 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