According to the i.MX25 reference manuals, each SSI has four FIFOs. All of those FIFOs can store up to 15 entries. The fsl_ssi driver's internal default for the FIFO depth in 8. Set our non-default FIFO depth explicitly in the Device Tree. Signed-off-by: Martin Kaiser <martin@xxxxxxxxx> --- arch/arm/boot/dts/imx25.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/imx25.dtsi b/arch/arm/boot/dts/imx25.dtsi index 9725705..cf70df2 100644 --- a/arch/arm/boot/dts/imx25.dtsi +++ b/arch/arm/boot/dts/imx25.dtsi @@ -269,6 +269,7 @@ dmas = <&sdma 24 1 0>, <&sdma 25 1 0>; dma-names = "rx", "tx"; + fsl,fifo-depth = <15>; status = "disabled"; }; @@ -329,6 +330,7 @@ dmas = <&sdma 28 1 0>, <&sdma 29 1 0>; dma-names = "rx", "tx"; + fsl,fifo-depth = <15>; status = "disabled"; }; -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
