Commit-ID: e12ba23254d81b0158a8bcc5f0c43c9fedb38a91 Gitweb: https://git.kernel.org/tip/e12ba23254d81b0158a8bcc5f0c43c9fedb38a91 Author: Aisheng Dong <aisheng.dong@xxxxxxx> AuthorDate: Wed, 20 Feb 2019 11:40:40 +0000 Committer: Marc Zyngier <marc.zyngier@xxxxxxx> CommitDate: Fri, 22 Feb 2019 09:22:22 +0000 dt-binding: irq: imx-irqsteer: Use irq number instead of group number 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-num to represents how many interrupts supported by this irqsteer channel. Note this will break the compatibility of old binding. As the original fsl,irq-groups was born out of a misunderstanding of the HW config options and we are not aware of any users of the current binding. And the old binding was just published in recent months, so it's worth to change now to avoid confusing in the future. Cc: Rob Herring <robh+dt@xxxxxxxxxx> Cc: Shawn Guo <shawnguo@xxxxxxxxxx> Cc: devicetree@xxxxxxxxxxxxxxx Reviewed-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx> Signed-off-by: Dong Aisheng <aisheng.dong@xxxxxxx> Signed-off-by: Marc Zyngier <marc.zyngier@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 45790ce6f5b9..6d0a41b54943 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,num-irqs: Number of input interrupts of this 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,num-irqs = <64>; interrupt-controller; #interrupt-cells = <1>; };
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