From 7df54dbeb055229f6689161aa90bf00bf4af077e Mon Sep 17 00:00:00 2001 From: Andrea Merello Date: Tue, 20 Nov 2018 16:31:47 +0100 Subject: dt-bindings: dmaengine: xilinx_dma: add optional xlnx,sg-length-width property The width of the "length register" cannot be autodetected, and it is now specified with a DT property. Add documentation for it. Cc: Rob Herring Cc: Mark Rutland Cc: devicetree@vger.kernel.org Cc: Radhey Shyam Pandey Signed-off-by: Andrea Merello Reviewed-by: Radhey Shyam Pandey Reviewed-by: Rob Herring Signed-off-by: Vinod Koul --- Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt b/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt index 174af2c45e77..2fce9fb4b270 100644 --- a/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt +++ b/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt @@ -41,6 +41,10 @@ Optional properties: - xlnx,include-sg: Tells configured for Scatter-mode in the hardware. Optional properties for AXI DMA: +- xlnx,sg-length-width: Should be set to the width in bits of the length + 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,mcdma: Tells whether configured for multi-channel mode in the hardware. Optional properties for VDMA: - xlnx,flush-fsync: Tells which channel to Flush on Frame sync. -- cgit v1.2.3 From 29b9ee4a0c0edf32667e2d95690f6ed810aad6ec Mon Sep 17 00:00:00 2001 From: Andrea Merello Date: Tue, 20 Nov 2018 16:31:50 +0100 Subject: dt-bindings: dmaengine: xilinx_dma: drop include-sg property This property is not needed anymore, because the driver now autodetects it. Delete references in documentation. Cc: Rob Herring Cc: Mark Rutland Cc: devicetree@vger.kernel.org Cc: Radhey Shyam Pandey Signed-off-by: Andrea Merello Reviewed-by: Radhey Shyam Pandey Reviewed-by: Rob Herring Signed-off-by: Vinod Koul --- Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt | 3 --- 1 file changed, 3 deletions(-) (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt b/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt index 2fce9fb4b270..93b6d961dd4f 100644 --- a/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt +++ b/Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt @@ -37,9 +37,6 @@ Required properties: Required properties for VDMA: - xlnx,num-fstores: Should be the number of framebuffers as configured in h/w. -Optional properties: -- xlnx,include-sg: Tells configured for Scatter-mode in - the hardware. Optional properties for AXI DMA: - xlnx,sg-length-width: Should be set to the width in bits of the length register as configured in h/w. Takes values {8...26}. If the property -- cgit v1.2.3