linux-kernel - [PATCH 3/6] dt-bindings: xilinx_dma: add required xlnx,lengthregwidth property

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Date:   Wed, 20 Jun 2018 10:36:50 +0200
From:   Andrea Merello <andrea.merello@...il.com>
To:     vkoul@...nel.org, dan.j.williams@...el.com,
        michal.simek@...inx.com, appana.durga.rao@...inx.com,
        dmaengine@...r.kernel.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Andrea Merello <andrea.merello@...il.com>
Subject: [PATCH 3/6] dt-bindings: xilinx_dma: add required xlnx,lengthregwidth property

The width of the "length register" cannot be autodetected, and it is now
specified with a DT property. Add DOC for it.

Signed-off-by: Andrea Merello <andrea.merello@...il.com>
---
 Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt b/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt
index a2b8bfaec43c..acecdc5d8d47 100644
--- a/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt
+++ b/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt
@@ -36,6 +36,8 @@ Required properties:
 
 Required properties for VDMA:
 - xlnx,num-fstores: Should be the number of framebuffers as configured in h/w.
+Required properties for AXI DMA:
+- xlnx,lengthregwidth: Should be the width of the length register as configured in h/w.
 
 Optional properties:
 - xlnx,include-sg: Tells configured for Scatter-mode in
-- 
2.17.1