Re: [PATCH RFC 2/4] dt-bindings/interrupt-controller: pdc: descibe PDC device binding

From: Sudeep Holla
Date: Tue Jan 23 2018 - 13:09:22 EST




On 23/01/18 17:56, Lina Iyer wrote:
> From: Archana Sathyakumar <asathyak@xxxxxxxxxxxxxx>
>
> Add device binding documentation for the PDC Interrupt controller on
> QCOM SoC's like the SDM845. The interrupt-controller can be used to
> sense edge low interrupts and wakeup interrupts when the GIC is
> non-operational.
>
> Cc: devicetree@xxxxxxxxxxxxxxx
> Signed-off-by: Archana Sathyakumar <asathyak@xxxxxxxxxxxxxx>
> Signed-off-by: Lina Iyer <ilina@xxxxxxxxxxxxxx>
> ---
> .../bindings/interrupt-controller/qcom,pdc.txt | 55 ++++++++++++++++++++++
> 1 file changed, 55 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt
>
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt b/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt
> new file mode 100644
> index 000000000000..c4592bbf678d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt
> @@ -0,0 +1,55 @@
> +PDC interrupt controller
> +
> +Qualcomm Technologies Inc. SoCs based on the RPM Hardened archicture have a
> +Power Domain Controller (PDC) that is on always-on domain. In addition to
> +providing power control for the power domains, the hardware also has an
> +interrupt controller that can be used to help detect edge low interrupts as
> +well detect interrupts when the GIC is non-operational.
> +
> +GIC is parent interrupt controller at the highest level. Platform interrupt
> +controller PDC is next in hierarchy, followed by others.

> This driver only configures the interrupts, does not handle them.

Not sure if the above statement belongs to the binding.

--
Regards,
Sudeep