On 06/12/2017 07:25 AM, Phil Elwell wrote:
> Add bindings documentation for brcm,bcm2835-aux-intc and human-readable
> declarations for the BCM2835 AUX IRQs.
>
> Signed-off-by: Phil Elwell <phil@xxxxxxxxxxxxxxx>
> ---
> .../interrupt-controller/brcm,bcm2835-aux-intc.txt | 28 ++++++++++++++++++++++
> .../interrupt-controller/bcm2835-aux-intc.h | 20 ++++++++++++++++
> 2 files changed, 48 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-aux-intc.txt
> create mode 100644 include/dt-bindings/interrupt-controller/bcm2835-aux-intc.h
>
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-aux-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-aux-intc.txt
> new file mode 100644
> index 0000000..f3f895c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2835-aux-intc.txt
> @@ -0,0 +1,28 @@
> +BCM2835 Auxiliary ("AUXIRQ") Interrupt Controller
> +
> +The BCM2835 family of SoCs multiplexes the interrupts for peripherals in
> +the AUX block into a single IRQ. The AUXIRQ register shows the IRQ status
> +of each of the peripherals. Note that there are no masking or clearing
> +facilities - interrupts must be enabled and acknowledged in the
> +individual peripherals.
> +
> +Required properties:
> +- compatible : Should be "brcm,bcm2835-aux-intc".
> +- reg : Specifies base physical address and size of the registers.
> +- interrupts : The interrupt number - see
> + bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
> +- interrupt-controller : Identifies the node as an interrupt controller
> +- #interrupt-cells : Specifies the number of cells needed to encode an
> + interrupt source. The value shall be 1.
> +
> + The cell contains the interrupt specifier, as found in
> + include/dt-bindings/interrupt-controller/bcm2835-aux-intc.h. Valid values
> + are 0..2.
This last sentence is sort of doomed for failure in case there are
additional interrupts being added in the future, referring to
bcm2835-aux-intc.h seems to be good enough IMHO.
Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
--
Florian
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