1*c66ec88fSEmmanuel Vadot* Freescale Low Power SPI (LPSPI) for i.MX 2*c66ec88fSEmmanuel Vadot 3*c66ec88fSEmmanuel VadotRequired properties: 4*c66ec88fSEmmanuel Vadot- compatible : 5*c66ec88fSEmmanuel Vadot - "fsl,imx7ulp-spi" for LPSPI compatible with the one integrated on i.MX7ULP soc 6*c66ec88fSEmmanuel Vadot - "fsl,imx8qxp-spi" for LPSPI compatible with the one integrated on i.MX8QXP soc 7*c66ec88fSEmmanuel Vadot- reg : address and length of the lpspi master registers 8*c66ec88fSEmmanuel Vadot- interrupt-parent : core interrupt controller 9*c66ec88fSEmmanuel Vadot- interrupts : lpspi interrupt 10*c66ec88fSEmmanuel Vadot- clocks : lpspi clock specifier. Its number and order need to correspond to the 11*c66ec88fSEmmanuel Vadot value in clock-names. 12*c66ec88fSEmmanuel Vadot- clock-names : Corresponding to per clock and ipg clock in "clocks" 13*c66ec88fSEmmanuel Vadot respectively. In i.MX7ULP, it only has per clk, so use CLK_DUMMY 14*c66ec88fSEmmanuel Vadot to fill the "ipg" blank. 15*c66ec88fSEmmanuel Vadot- spi-slave : spi slave mode support. In slave mode, add this attribute without 16*c66ec88fSEmmanuel Vadot value. In master mode, remove it. 17*c66ec88fSEmmanuel Vadot 18*c66ec88fSEmmanuel VadotExamples: 19*c66ec88fSEmmanuel Vadot 20*c66ec88fSEmmanuel Vadotlpspi2: lpspi@40290000 { 21*c66ec88fSEmmanuel Vadot compatible = "fsl,imx7ulp-spi"; 22*c66ec88fSEmmanuel Vadot reg = <0x40290000 0x10000>; 23*c66ec88fSEmmanuel Vadot interrupt-parent = <&intc>; 24*c66ec88fSEmmanuel Vadot interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>; 25*c66ec88fSEmmanuel Vadot clocks = <&clks IMX7ULP_CLK_LPSPI2>, 26*c66ec88fSEmmanuel Vadot <&clks IMX7ULP_CLK_DUMMY>; 27*c66ec88fSEmmanuel Vadot clock-names = "per", "ipg"; 28*c66ec88fSEmmanuel Vadot spi-slave; 29*c66ec88fSEmmanuel Vadot}; 30