On Wed, Apr 15, 2020 at 08:40:11AM +0800, Anson Huang wrote:
> Convert the i.MX7ULP watchdog binding to DT schema format using json-schema.
>
> Signed-off-by: Anson Huang <Anson.Huang@xxxxxxx>
> ---
> Changes since V1:
> - Add 'timeout-sec' property to avoid build error.
> ---
> .../bindings/watchdog/fsl-imx7ulp-wdt.txt | 22 --------
> .../bindings/watchdog/fsl-imx7ulp-wdt.yaml | 65 ++++++++++++++++++++++
> 2 files changed, 65 insertions(+), 22 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.txt
> create mode 100644 Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.yaml
>
> diff --git a/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.txt b/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.txt
> deleted file mode 100644
> index f902508..0000000
> --- a/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.txt
> +++ /dev/null
> @@ -1,22 +0,0 @@
> -* Freescale i.MX7ULP Watchdog Timer (WDT) Controller
> -
> -Required properties:
> -- compatible : Should be "fsl,imx7ulp-wdt"
> -- reg : Should contain WDT registers location and length
> -- interrupts : Should contain WDT interrupt
> -- clocks: Should contain a phandle pointing to the gated peripheral clock.
> -
> -Optional properties:
> -- timeout-sec : Contains the watchdog timeout in seconds
> -
> -Examples:
> -
> -wdog1: watchdog@403d0000 {
> - compatible = "fsl,imx7ulp-wdt";
> - reg = <0x403d0000 0x10000>;
> - interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&pcc2 IMX7ULP_CLK_WDG1>;
> - assigned-clocks = <&pcc2 IMX7ULP_CLK_WDG1>;
> - assigned-clocks-parents = <&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>;
> - timeout-sec = <40>;
> -};
> diff --git a/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.yaml b/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.yaml
> new file mode 100644
> index 0000000..86b4d93
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/fsl-imx7ulp-wdt.yaml
> @@ -0,0 +1,65 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/watchdog/fsl-imx7ulp-wdt.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Freescale i.MX7ULP Watchdog Timer (WDT) Controller
> +
> +maintainers:
> + - Anson Huang <Anson.Huang@xxxxxxx>
> +
> +allOf:
> + - $ref: "watchdog.yaml#"
> +
> +properties:
> + compatible:
> + enum:
> + - fsl,imx7ulp-wdt
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + description: |
> + Watchdog's clock source.
> + maxItems: 1
> +
> + assigned-clocks:
> + maxItems: 1
> +
> + assigned-clocks-parents:
> + maxItems: 1
> +
> + timeout-sec:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + description: |
> + Contains the watchdog timeout in seconds.
This already has a definition in watchdog.yaml, just need:
timeout-sec: true
> +
> +required:
> + - compatible
> + - interrupts
> + - reg
> + - clocks
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + #include <dt-bindings/clock/imx7ulp-clock.h>
> +
> + wdog1: watchdog@403d0000 {
> + compatible = "fsl,imx7ulp-wdt";
> + reg = <0x403d0000 0x10000>;
> + interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&pcc2 IMX7ULP_CLK_WDG1>;
> + assigned-clocks = <&pcc2 IMX7ULP_CLK_WDG1>;
> + assigned-clocks-parents = <&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>;
> + timeout-sec = <40>;
> + };
> +
> +...
> --
> 2.7.4
>
