Not all 64 interrupts may be used in one group. e.g. most irqsteer in imx8qxp and imx8qm subsystems supports only 32 interrupts. As the IP integration parameters are Channel number and interrupts number, let's use fsl,irqs-per-chan to represents how many interrupts supported by this irqsteer channel. Cc: Marc Zyngier <marc.zyngier@xxxxxxx> Cc: Rob Herring <robh+dt@xxxxxxxxxx> Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx> Cc: Shawn Guo <shawnguo@xxxxxxxxxx> Cc: devicetree@xxxxxxxxxxxxxxx Signed-off-by: Dong Aisheng <aisheng.dong@xxxxxxx> --- .../devicetree/bindings/interrupt-controller/fsl,irqsteer.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.txt b/Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.txt index 45790ce..eaabcda 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.txt @@ -16,8 +16,8 @@ Required properties: - #interrupt-cells: Specifies the number of cells needed to encode an interrupt source. The value must be 1. - fsl,channel: The output channel that all input IRQs should be steered into. -- fsl,irq-groups: Number of IRQ groups managed by this controller instance. - Each group manages 64 input interrupts. +- fsl,irqs-per-chan: Number of input interrupts per channel. Should be multiple of 32 + input interrupts and up to 512 interrupts. Example: @@ -28,7 +28,7 @@ Example: clocks = <&clk IMX8MQ_CLK_DISP_APB_ROOT>; clock-names = "ipg"; fsl,channel = <0>; - fsl,irq-groups = <1>; + fsl,irqs-per-chan= <64>; interrupt-controller; #interrupt-cells = <1>; }; -- 2.7.4
