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From: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
To: <vkoul@kernel.org>, <robh+dt@kernel.org>, <michal.simek@xilinx.com>
Cc: <dmaengine@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <git@xilinx.com>,
	Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Subject: [RFC v2 PATCH 1/7] dt-bindings: dmaengine: xilinx_dma: Add xlnx,axistream-connected property
Date: Fri, 9 Apr 2021 23:25:59 +0530	[thread overview]
Message-ID: <1617990965-35337-2-git-send-email-radhey.shyam.pandey@xilinx.com> (raw)
In-Reply-To: <1617990965-35337-1-git-send-email-radhey.shyam.pandey@xilinx.com>

Add an optional DMA property 'xlnx,axistream-connected'. This can be
specified to indicate that DMA is connected to a streaming IP in the
hardware design and dma driver needs to do some additional handling
i.e pass metadata and perform streaming IP specific configuration.

Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
---
Changes for v2:
- Rename xlnx,axieth-connected to xlnx,axistream-connected to
  make it generic.
---
 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 325aca52cd43..f5f23a4a4467 100644
--- a/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt
+++ b/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt
@@ -49,6 +49,8 @@ Optional properties for AXI DMA and MCDMA:
 	register as configured in h/w. Takes values {8...26}. If the property
 	is missing or invalid then the default value 23 is used. This is the
 	maximum value that is supported by all IP versions.
+- xlnx,axistream-connected: Tells whether DMA is connected to AXI stream IP.
+
 Optional properties for VDMA:
 - xlnx,flush-fsync: Tells which channel to Flush on Frame sync.
 	It takes following values:
-- 
2.7.4


  reply	other threads:[~2021-04-09 17:57 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-09 17:55 [RFC v2 PATCH 0/7] Xilinx DMA enhancements and optimization Radhey Shyam Pandey
2021-04-09 17:55 ` Radhey Shyam Pandey [this message]
2021-04-12 18:25   ` [RFC v2 PATCH 1/7] dt-bindings: dmaengine: xilinx_dma: Add xlnx,axistream-connected property Rob Herring
2021-04-09 17:56 ` [RFC v2 PATCH 2/7] dt-bindings: dmaengine: xilinx_dma: Add xlnx,irq-delay property Radhey Shyam Pandey
2021-04-12 18:25   ` Rob Herring
2021-04-09 17:56 ` [RFC v2 PATCH 3/7] dmaengine: xilinx_dma: Pass AXI4-Stream control words to dma client Radhey Shyam Pandey
2021-04-09 17:56 ` [RFC v2 PATCH 4/7] dmaengine: xilinx_dma: Increase AXI DMA transaction segment count Radhey Shyam Pandey
2021-04-09 17:56 ` [RFC v2 PATCH 5/7] dmaengine: xilinx_dma: Freeup active list based on descriptor completion bit Radhey Shyam Pandey
2021-04-15  7:08   ` Lars-Peter Clausen
2021-06-11 16:16     ` Radhey Shyam Pandey
2021-04-15  7:26   ` Lars-Peter Clausen
2021-06-11 18:58     ` Radhey Shyam Pandey
2021-04-09 17:56 ` [RFC v2 PATCH 6/7] dmaengine: xilinx_dma: Use tasklet_hi_schedule for timing critical usecase Radhey Shyam Pandey
2021-04-15  7:10   ` Lars-Peter Clausen
2021-06-11 18:30     ` Radhey Shyam Pandey
2021-04-09 17:56 ` [RFC v2 PATCH 7/7] dmaengine: xilinx_dma: Program interrupt delay timeout Radhey Shyam Pandey
2021-04-15  7:33   ` Lars-Peter Clausen
2021-06-11 19:33     ` Radhey Shyam Pandey
2021-04-15  7:06 ` [RFC v2 PATCH 0/7] Xilinx DMA enhancements and optimization Lars-Peter Clausen
2021-06-11 16:13   ` Radhey Shyam Pandey

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