From 540f932c039bd8362b1231502df71198bee0181c Mon Sep 17 00:00:00 2001 From: Robin Gong Date: Thu, 16 Nov 2017 17:23:40 +0800 Subject: MLK-16841-1: dma: imx-sdma: add clock ration 1:1 check On i.mx8 mscale B0 chip, AHB/SDMA clock ratio 2:1 can't be supportted, since SDMA clock ration has to be increased to 250Mhz, AHB can't reach to 500Mhz, so use 1:1 instead. Signed-off-by: Robin Gong --- Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt') diff --git a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt index 0839b70f0261..81b8cad86d17 100644 --- a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt +++ b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt @@ -69,6 +69,7 @@ Optional properties: reg is the GPR register offset. shift is the bit position inside the GPR register. val is the value of the bit (0 or 1). +- fsl,ratio-1-1: AHB/SDMA core clock ration 1:1, 2:1 without this. Examples: -- cgit v1.2.3