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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/interrupt-controller/qcom,pdc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: PDC interrupt controller
maintainers:
- Bjorn Andersson <bjorn.andersson@linaro.org>
description: |
Qualcomm Technologies Inc. SoCs based on the RPM Hardened architecture 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. Drivers requiring
wakeup capabilities of their device interrupts routed through the PDC, must
specify PDC as their interrupt controller and request the PDC port associated
with the GIC interrupt. See example below.
properties:
compatible:
items:
- enum:
- qcom,sc7180-pdc
- qcom,sc7280-pdc
- qcom,sc8280xp-pdc
- qcom,sdm845-pdc
- qcom,sdx55-pdc
- qcom,sdx65-pdc
- qcom,sm6350-pdc
- qcom,sm8150-pdc
- qcom,sm8250-pdc
- qcom,sm8350-pdc
- qcom,sm8450-pdc
- const: qcom,pdc
reg:
minItems: 1
items:
- description: PDC base register region
- description: Edge or Level config register for SPI interrupts
'#interrupt-cells':
const: 2
interrupt-controller: true
qcom,pdc-ranges:
$ref: /schemas/types.yaml#/definitions/uint32-matrix
minItems: 1
maxItems: 32 # no hard limit
items:
items:
- description: starting PDC port
- description: GIC hwirq number for the PDC port
- description: number of interrupts in sequence
description: |
Specifies the PDC pin offset and the number of PDC ports.
The tuples indicates the valid mapping of valid PDC ports
and their hwirq mapping.
required:
- compatible
- reg
- '#interrupt-cells'
- interrupt-controller
- qcom,pdc-ranges
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
pdc: interrupt-controller@b220000 {
compatible = "qcom,sdm845-pdc", "qcom,pdc";
reg = <0xb220000 0x30000>;
qcom,pdc-ranges = <0 512 94>, <94 641 15>, <115 662 7>;
#interrupt-cells = <2>;
interrupt-parent = <&intc>;
interrupt-controller;
};
wake-device {
interrupts-extended = <&pdc 2 IRQ_TYPE_LEVEL_HIGH>;
};
|
