We'd like to confiugre ECSPI1 bus to use DMA functions.
Below is from I.MX8M Mini chipset.
ecspi1: ecspi@30820000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl,imx8mm-ecspi", "fsl,imx51-ecspi";
reg = <0x0 0x30820000 0x0 0x10000>;
interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk IMX8MM_CLK_ECSPI1_ROOT>,
<&clk IMX8MM_CLK_ECSPI1_ROOT>;
clock-names = "ipg", "per";
dmas = <&sdma1 0 7 1>, <&sdma1 1 7 2>;
dma-names = "rx", "tx";
status = "disabled";
};
