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    Subject[PATCH v3 2/2] devicetree: bindings SPI Add bindings doc for Sunplus SP7021
    Date
    Add devicetree bindings SPI Add bindings doc for Sunplus SP7021

    Signed-off-by: LH.Kuo <lh.kuo@sunplus.com>
    ---
    Changes in v3:
    - Addressed all comments from Mr. Mark Brown
    - Addressed all comments from Mr. Philipp Zabel
    - Addressed all comments from Mr. Rob Herring
    - remove spi transfer_one_message

    .../bindings/spi/spi-sunplus-sp7021.yaml | 95 ++++++++++++++++++++++
    MAINTAINERS | 1 +
    2 files changed, 96 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/spi/spi-sunplus-sp7021.yaml

    diff --git a/Documentation/devicetree/bindings/spi/spi-sunplus-sp7021.yaml b/Documentation/devicetree/bindings/spi/spi-sunplus-sp7021.yaml
    new file mode 100644
    index 0000000..5502f15
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/spi/spi-sunplus-sp7021.yaml
    @@ -0,0 +1,95 @@
    +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
    +# Copyright (C) Sunplus Co., Ltd. 2021
    +%YAML 1.2
    +---
    +$id: http://devicetree.org/schemas/spi/spi-sunplus-sp7021.yaml#
    +$schema: http://devicetree.org/meta-schemas/core.yaml#
    +
    +title: Sunplus sp7021 SPI controller
    +
    +allOf:
    + - $ref: "spi-controller.yaml"
    +
    +maintainers:
    + - lh.kuo <lh.kuo@sunplus.com>
    +
    +properties:
    + compatible:
    + enum:
    + - sunplus,sp7021-spi-controller
    +
    + reg:
    + items:
    + - description: Base address and length of the SPI master registers
    + - description: Base address and length of the SPI slave registers
    +
    + reg-names:
    + items:
    + - const: spi_master
    + - const: spi_slave
    +
    + interrupt-names:
    + items:
    + - const: dma_w_intr
    + - const: mas_risc_intr
    + - const: slave_risc_intr
    +
    + interrupts:
    + minItems: 3
    +
    + clocks:
    + maxItems: 1
    +
    + clocks-names:
    + items:
    + - const: sys_pll
    +
    + resets:
    + maxItems: 1
    +
    + pinctrl-names:
    + description:
    + A pinctrl state named "default" must be defined.
    + const: default
    +
    + pinctrl-0:
    + description:
    + A phandle to the default pinctrl state.
    +
    +required:
    + - compatible
    + - reg
    + - reg-names
    + - interrupts
    + - interrupt-names
    + - clocks
    + - clocks-names
    + - resets
    + - pinctrl-names
    + - pinctrl-0
    +
    +unevaluatedProperties: false
    +
    +examples:
    + - |
    + #include <dt-bindings/clock/sp-sp7021.h>
    + #include <dt-bindings/reset/sp-sp7021.h>
    + #include <dt-bindings/interrupt-controller/irq.h>
    + spi@9C002D80 {
    + compatible = "sunplus,sp7021-spi-controller";
    + reg = <0x9C002D80 0x80>, <0x9C002E00 0x80>;
    + reg-names = "spi_master", "spi_slave";
    + interrupt-parent = <&intc>;
    + interrupt-names = "dma_w_intr",
    + "mas_risc_intr",
    + "slave_risc_intr";
    + interrupts = <144 IRQ_TYPE_LEVEL_HIGH>,
    + <146 IRQ_TYPE_LEVEL_HIGH>,
    + <145 IRQ_TYPE_LEVEL_HIGH>;
    + clocks = <&clkc SPI_COMBO_0>;
    + clocks-names = "sys_pll";
    + resets = <&rstc RST_SPI_COMBO_0>;
    + pinctrl-names = "default";
    + pinctrl-0 = <&pins_spi0>;
    + };
    +...
    diff --git a/MAINTAINERS b/MAINTAINERS
    index 75fa7d5..88f3747 100644
    --- a/MAINTAINERS
    +++ b/MAINTAINERS
    @@ -18220,6 +18220,7 @@ SUNPLUS SPI CONTROLLER INTERFACE DRIVER
    M: LH Kuo <lh.kuo@sunplus.com>
    L: linux-spi@vger.kernel.org
    S: Maintained
    +F: Documentation/devicetree/bindings/spi/spi-sunplus-sp7021.yaml
    F: drivers/spi/spi-sunplus-sp7021.c

    SUPERH
    --
    2.7.4
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