摘要：
//文档/设备树/绑定/手臂/逻辑。Txt#中断单元为31：中断=，；2： 0spiinterrupt，1PPIinterrupt；spi0-987PPI[0-15]3:[3:0]isflags1=从低到高触发2=从高到低
// Documenation/devicetree/binding/arm/gic.txt
#interrput-cells 为3
1:interrupts=<0 168 4 >,<0 169 4>;
2:0 spi interrupts,1 for PPI interrupts;
spi 0-987 PPI [0-15]
3:[3:0] is flags 1= low-to-high edge trigged
2= high-to-low edget trigged
4= active high level-sensitive
8=active low level-sensitive
SPI 多个中断号
interrupts = <0 168 4 >,<0 169 4 >
//int platform_get_irq(struct platform_devices*dev,unsigned int num);
statict int fsl_edma_irq_init(struct platform_device*pdev,struct fsl_edma_engine*fsl_edma)
{
fsl_ema->txirq = platform_get_irq_byname(pdev,"edma-tx");
fsl_ema->errirq = platform_get_irq_byname(pdev,"edma-err");
}
edma0: dma-controller@400180000{
compatible = "fsl,vf610-edma";
interrupts = <0 8 IRQ_TYPE_LEVEL_HIGH>,
<0 9 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "edma-tx","edma-err";
};