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    Subject[PATCH v2 7/8] dt-bindings: interrupt-controller: Add bindings for SP7021 interrupt controller
    Date
    Add documentation to describe Sunplus SP7021 interrupt controller bindings.

    Signed-off-by: Qin Jian <qinjian@cqplus1.com>
    ---
    .../sunplus,sp7021-intc.yaml | 59 +++++++++++++++++++
    MAINTAINERS | 2 +
    .../interrupt-controller/sp7021-intc.h | 24 ++++++++
    3 files changed, 85 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/interrupt-controller/sunplus,sp7021-intc.yaml
    create mode 100644 include/dt-bindings/interrupt-controller/sp7021-intc.h

    diff --git a/Documentation/devicetree/bindings/interrupt-controller/sunplus,sp7021-intc.yaml b/Documentation/devicetree/bindings/interrupt-controller/sunplus,sp7021-intc.yaml
    new file mode 100644
    index 000000000..185c99b5e
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/interrupt-controller/sunplus,sp7021-intc.yaml
    @@ -0,0 +1,59 @@
    +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    +# Copyright (C) Sunplus Co., Ltd. 2021
    +%YAML 1.2
    +---
    +$id: http://devicetree.org/schemas/interrupt-controller/sunplus,sp7021-intc.yaml#
    +$schema: http://devicetree.org/meta-schemas/core.yaml#
    +
    +title: Sunplus SP7021 SoC Interrupt Controller Device Tree Bindings
    +
    +maintainers:
    + - Qin Jian <qinjian@cqplus1.com>
    +
    +properties:
    + compatible:
    + items:
    + - const: sunplus,sp7021-intc
    +
    + interrupt-controller: true
    +
    + "#interrupt-cells":
    + const: 2
    + description:
    + The first cell is the IRQ number, the second cell the trigger
    + type as defined in interrupt.txt in this directory.
    + The MSB of second cell also indicate route to which EXT_INT.
    +
    + reg:
    + maxItems: 2
    +
    + interrupts:
    + maxItems: 2
    + description:
    + EXT_INT0 & EXT_INT1, 2 interrupts references to primary interrupt
    + controller.
    +
    +required:
    + - compatible
    + - interrupt-controller
    + - "#interrupt-cells"
    + - reg
    + - interrupts
    +
    +additionalProperties: false
    +
    +examples:
    + - |
    + #include <dt-bindings/interrupt-controller/arm-gic.h>
    +
    + intc: interrupt-controller@9c000780 {
    + compatible = "sunplus,sp7021-intc";
    + interrupt-controller;
    + #interrupt-cells = <2>;
    + reg = <0x9c000780 0x80>, <0x9c000a80 0x80>;
    + interrupt-parent = <&gic>;
    + interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>, /* EXT_INT0 */
    + <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>; /* EXT_INT1 */
    + };
    +
    +...
    diff --git a/MAINTAINERS b/MAINTAINERS
    index 5069f552f..be0334d6a 100644
    --- a/MAINTAINERS
    +++ b/MAINTAINERS
    @@ -2662,10 +2662,12 @@ S: Maintained
    W: https://sunplus-tibbo.atlassian.net/wiki/spaces/doc/overview
    F: Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml
    F: Documentation/devicetree/bindings/clock/sunplus,sp7021-clkc.yaml
    +F: Documentation/devicetree/bindings/interrupt-controller/sunplus,sp7021-intc.yaml
    F: Documentation/devicetree/bindings/reset/sunplus,reset.yaml
    F: drivers/clk/clk-sp7021.c
    F: drivers/reset/reset-sunplus.c
    F: include/dt-bindings/clock/sp-sp7021.h
    +F: include/dt-bindings/interrupt-controller/sp7021-intc.h
    F: include/dt-bindings/reset/sp-sp7021.h

    ARM/Synaptics SoC support
    diff --git a/include/dt-bindings/interrupt-controller/sp7021-intc.h b/include/dt-bindings/interrupt-controller/sp7021-intc.h
    new file mode 100644
    index 000000000..fa2eb8100
    --- /dev/null
    +++ b/include/dt-bindings/interrupt-controller/sp7021-intc.h
    @@ -0,0 +1,24 @@
    +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
    +/*
    + * Copyright (C) Sunplus Technology Co., Ltd.
    + * All rights reserved.
    + *
    + *
    + * This header provides constants for the SP7021 INTC
    + */
    +
    +#ifndef _DT_BINDINGS_INTERRUPT_CONTROLLER_SP7021_INTC_H
    +#define _DT_BINDINGS_INTERRUPT_CONTROLLER_SP7021_INTC_H
    +
    +#include <dt-bindings/interrupt-controller/irq.h>
    +
    +/*
    + * Interrupt specifier cell 1.
    + * The flags in irq.h are valid, plus those below.
    + */
    +#define SP_INTC_EXT_INT0 0x00000
    +#define SP_INTC_EXT_INT1 0x01000
    +#define SP_INTC_EXT_INT_MASK 0xff000
    +#define SP_INTC_EXT_INT_SHFIT 12
    +
    +#endif
    --
    2.33.1
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