From: Sarath Babu Naidu Gaddam <sarath.babu.naidu.gaddam@amd.com>
To: <vkoul@kernel.org>, <robh+dt@kernel.org>,
<krzysztof.kozlowski+dt@linaro.org>, <lars@metafoo.de>,
<adrianml@alumnos.upm.es>
Cc: <dmaengine@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <michal.simek@amd.com>,
<radhey.shyam.pandey@amd.com>, <anirudha.sarangi@amd.com>,
<harini.katakam@amd.com>, <sarath.babu.naidu.gaddam@amd.com>,
<git@xilinx.com>, <git@amd.com>
Subject: [RFC V3 PATCH 1/8] dt-bindings: dmaengine: xilinx_dma: Add xlnx,axistream-connected property
Date: Tue, 20 Sep 2022 11:21:12 +0530 [thread overview]
Message-ID: <20220920055119.12634-2-sarath.babu.naidu.gaddam@amd.com> (raw)
In-Reply-To: <20220920055119.12634-1-sarath.babu.naidu.gaddam@amd.com>
From: Radhey Shyam Pandey <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>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sarath Babu Naidu Gaddam <sarath.babu.naidu.gaddam@amd.com>
---
Changes in V3:
- Add Rob acked-by.
Changes in 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 d1700a5c36bf..18445aa092ab 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:
--
2.25.1
next prev parent reply other threads:[~2022-09-20 5:52 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-20 5:51 [RFC V3 PATCH 0/8] Xilinx DMA enhancements and optimization Sarath Babu Naidu Gaddam
2022-09-20 5:51 ` Sarath Babu Naidu Gaddam [this message]
2022-09-20 5:51 ` [RFC V3 PATCH 2/8] dt-bindings: dmaengine: xilinx_dma: Add xlnx,irq-delay property Sarath Babu Naidu Gaddam
2022-09-20 5:51 ` [RFC V3 PATCH 3/8] dmaengine: xilinx_dma: Pass AXI4-Stream control words to dma client Sarath Babu Naidu Gaddam
2022-09-20 5:51 ` [RFC V3 PATCH 4/8] dmaengine: xilinx_dma: Increase AXI DMA transaction segment count Sarath Babu Naidu Gaddam
2022-09-20 5:51 ` [RFC V3 PATCH 5/8] dmaengine: xilinx_dma: Freeup active list based on descriptor completion bit Sarath Babu Naidu Gaddam
2022-09-20 5:51 ` [RFC V3 PATCH 6/8] dmaengine: xilinx_dma: Use tasklet_hi_schedule for timing critical usecase Sarath Babu Naidu Gaddam
2022-09-20 5:51 ` [RFC V3 PATCH 7/8] dmaengine: xilinx_dma: Program interrupt delay timeout Sarath Babu Naidu Gaddam
2022-09-20 5:51 ` [RFC V3 PATCH 8/8] dmaengine: xilinx_dma: Add device_config support Sarath Babu Naidu Gaddam
2022-09-20 11:27 ` [RFC V3 PATCH 0/8] Xilinx DMA enhancements and optimization Vinod Koul
2022-09-20 12:00 ` Pandey, Radhey Shyam
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