| * NXP i.MX8QM/i.MX8QXP INTMUX Interrupt Multiplexing |
| |
| Required properties: |
| - compatible: "nxp,imx-intmux". |
| - reg: should contain IC registers location and length. |
| - clocks : ipg clock for intmux. |
| - interrupts: an interrupt to the parent interrupt controller. |
| - interrupt-controller: identifies the node as an interrupt controller. |
| - interrupt-parent: gic interrupt controller, link to parent |
| - #interrupt-cells: the number of cells to define an interrupt, should be 2. |
| The first cell is the IRQ number, the second cell is used to specify |
| one of the supported IRQ types: |
| IRQ_TYPE_EDGE_RISING = low-to-high edge triggered, |
| IRQ_TYPE_EDGE_FALLING = high-to-low edge triggered, |
| IRQ_TYPE_LEVEL_HIGH = active high level-sensitive, |
| IRQ_TYPE_LEVEL_LOW = active low level-sensitive. |
| |
| Optional properties: |
| - nxp,intmux_chans: specify the interrupt channel number, default is 1. |
| |
| Examples: |
| |
| intmux_cm40: intmux@37400000 { |
| compatible = "nxp,imx-intmux"; |
| reg = <0x0 0x37400000 0x0 0x1000>; |
| interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>, |
| <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>, |
| <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>, |
| <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>, |
| <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>, |
| <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>, |
| <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>, |
| <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>; |
| interrupt-controller; |
| interrupt-parent = <&gic>; |
| #interrupt-cells = <2>; |
| clocks = <&clk IMX8QXP_CM40_IPG_CLK>; |
| clock-names = "ipg"; |
| power-domains = <&pd_cm40_intmux>; |
| status = "disabled"; |
| }; |
| |
| i2c0_cm40: i2c@37230000 { |
| compatible = "fsl,imx8qm-lpi2c"; |
| reg = <0x0 0x37230000 0x0 0x1000>; |
| interrupts = <9 IRQ_TYPE_LEVEL_HIGH>; |
| interrupt-parent = <&intmux_cm40>; |
| clocks = <&clk IMX8QXP_CM40_I2C_CLK>, |
| <&clk IMX8QXP_CM40_I2C_IPG_CLK>; |
| clock-names = "per", "ipg"; |
| assigned-clocks = <&clk IMX8QXP_CM40_I2C_CLK>; |
| assigned-clock-rates = <24000000>; |
| power-domains = <&pd_cm40_i2c>; |
| status = "disabled"; |
| }; |