Commit f4be9b77 authored Mar 06, 2018 by Martin Kaiser Committed by Shawn Guo Mar 12, 2018

ARM: dts: i.MX25: define SSI FIFO depth



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@kaiser.cx>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

parent 5fba4ce6

arch/arm/boot/dts/imx25.dtsi

+2 −0

Original line number	Diff line number	Diff line
		@@ -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";
		};