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    Subject[PATCH v2 4/4] dt-bindings: rtc: stmp3xxx-rtc: convert to dtschema
    Convert existing binding to dtschema to support validation and
    add the undocumented compatible 'fsl,imx23-rtc'.

    Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
    ---
    .../devicetree/bindings/rtc/fsl,stmp3xxx-rtc.yaml | 51 ++++++++++++++++++++++
    .../devicetree/bindings/rtc/stmp3xxx-rtc.txt | 21 ---------
    2 files changed, 51 insertions(+), 21 deletions(-)

    diff --git a/Documentation/devicetree/bindings/rtc/fsl,stmp3xxx-rtc.yaml b/Documentation/devicetree/bindings/rtc/fsl,stmp3xxx-rtc.yaml
    new file mode 100644
    index 000000000000..534de4196a4f
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/rtc/fsl,stmp3xxx-rtc.yaml
    @@ -0,0 +1,51 @@
    +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    +%YAML 1.2
    +---
    +$id: http://devicetree.org/schemas/rtc/fsl,stmp3xxx-rtc.yaml#
    +$schema: http://devicetree.org/meta-schemas/core.yaml#
    +
    +title: STMP3xxx/i.MX28 Time Clock Controller
    +
    +maintainers:
    + - Javier Carrasco <javier.carrasco.cruz@gmail.com>
    +
    +allOf:
    + - $ref: rtc.yaml#
    +
    +properties:
    + compatible:
    + oneOf:
    + - items:
    + - enum:
    + - fsl,imx28-rtc
    + - fsl,imx23-rtc
    + - const: fsl,stmp3xxx-rtc
    + - const: fsl,stmp3xxx-rtc
    +
    + reg:
    + maxItems: 1
    +
    + interrupts:
    + maxItems: 1
    +
    + stmp,crystal-freq:
    + description:
    + Override crystal frequency as determined from fuse bits.
    + Use <0> for "no crystal".
    + $ref: /schemas/types.yaml#/definitions/uint32
    + enum: [0, 32000, 32768]
    +
    +required:
    + - compatible
    + - reg
    + - interrupts
    +
    +unevaluatedProperties: false
    +
    +examples:
    + - |
    + rtc@80056000 {
    + compatible = "fsl,imx28-rtc", "fsl,stmp3xxx-rtc";
    + reg = <0x80056000 2000>;
    + interrupts = <29>;
    + };
    diff --git a/Documentation/devicetree/bindings/rtc/stmp3xxx-rtc.txt b/Documentation/devicetree/bindings/rtc/stmp3xxx-rtc.txt
    deleted file mode 100644
    index fa6a94226669..000000000000
    --- a/Documentation/devicetree/bindings/rtc/stmp3xxx-rtc.txt
    +++ /dev/null
    @@ -1,21 +0,0 @@
    -* STMP3xxx/i.MX28 Time Clock controller
    -
    -Required properties:
    -- compatible: should be one of the following.
    - * "fsl,stmp3xxx-rtc"
    -- reg: physical base address of the controller and length of memory mapped
    - region.
    -- interrupts: rtc alarm interrupt
    -
    -Optional properties:
    -- stmp,crystal-freq: override crystal frequency as determined from fuse bits.
    - Only <32000> and <32768> are possible for the hardware. Use <0> for
    - "no crystal".
    -
    -Example:
    -
    -rtc@80056000 {
    - compatible = "fsl,imx28-rtc", "fsl,stmp3xxx-rtc";
    - reg = <0x80056000 2000>;
    - interrupts = <29>;
    -};
    --
    2.40.1


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