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Date: Tue, 19 May 2020 02:46:21 +0000
From: Aisheng Dong <aisheng.dong@....com>
To: Anson Huang <anson.huang@....com>,
"daniel.lezcano@...aro.org" <daniel.lezcano@...aro.org>,
"tglx@...utronix.de" <tglx@...utronix.de>,
"robh+dt@...nel.org" <robh+dt@...nel.org>,
"shawnguo@...nel.org" <shawnguo@...nel.org>,
"s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
"kernel@...gutronix.de" <kernel@...gutronix.de>,
"festevam@...il.com" <festevam@...il.com>,
Jacky Bai <ping.bai@....com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>
CC: dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH 1/3] dt-bindings: timer: Convert i.MX GPT to json-schema
> From: Anson Huang <Anson.Huang@....com>
> Sent: Monday, May 18, 2020 10:48 PM
>
> Convert the i.MX GPT binding to DT schema format using json-schema.
>
> Signed-off-by: Anson Huang <Anson.Huang@....com>
> ---
> .../devicetree/bindings/timer/fsl,imxgpt.txt | 45 ---------
> .../devicetree/bindings/timer/fsl,imxgpt.yaml | 109
> +++++++++++++++++++++
> 2 files changed, 109 insertions(+), 45 deletions(-) delete mode 100644
> Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
> create mode 100644
> Documentation/devicetree/bindings/timer/fsl,imxgpt.yaml
>
> diff --git a/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
> b/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
> deleted file mode 100644
> index 5d8fd5b..0000000
> --- a/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
> +++ /dev/null
> @@ -1,45 +0,0 @@
> -Freescale i.MX General Purpose Timer (GPT)
> -
> -Required properties:
> -
> -- compatible : should be one of following:
> - for i.MX1:
> - - "fsl,imx1-gpt";
> - for i.MX21:
> - - "fsl,imx21-gpt";
> - for i.MX27:
> - - "fsl,imx27-gpt", "fsl,imx21-gpt";
> - for i.MX31:
> - - "fsl,imx31-gpt";
> - for i.MX25:
> - - "fsl,imx25-gpt", "fsl,imx31-gpt";
> - for i.MX50:
> - - "fsl,imx50-gpt", "fsl,imx31-gpt";
> - for i.MX51:
> - - "fsl,imx51-gpt", "fsl,imx31-gpt";
> - for i.MX53:
> - - "fsl,imx53-gpt", "fsl,imx31-gpt";
> - for i.MX6Q:
> - - "fsl,imx6q-gpt", "fsl,imx31-gpt";
> - for i.MX6DL:
> - - "fsl,imx6dl-gpt";
> - for i.MX6SL:
> - - "fsl,imx6sl-gpt", "fsl,imx6dl-gpt";
> - for i.MX6SX:
> - - "fsl,imx6sx-gpt", "fsl,imx6dl-gpt";
> -- reg : specifies base physical address and size of the registers.
> -- interrupts : should be the gpt interrupt.
> -- clocks : the clocks provided by the SoC to drive the timer, must contain
> - an entry for each entry in clock-names.
> -- clock-names : must include "ipg" entry first, then "per" entry.
> -
> -Example:
> -
> -gpt1: timer@...03000 {
> - compatible = "fsl,imx27-gpt", "fsl,imx21-gpt";
> - reg = <0x10003000 0x1000>;
> - interrupts = <26>;
> - clocks = <&clks IMX27_CLK_GPT1_IPG_GATE>,
> - <&clks IMX27_CLK_PER1_GATE>;
> - clock-names = "ipg", "per";
> -};
> diff --git a/Documentation/devicetree/bindings/timer/fsl,imxgpt.yaml
> b/Documentation/devicetree/bindings/timer/fsl,imxgpt.yaml
> new file mode 100644
> index 0000000..5c7186b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/timer/fsl,imxgpt.yaml
> @@ -0,0 +1,109 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2
> +---
> +
> +title: Freescale i.MX General Purpose Timer (GPT)
> +
> +maintainers:
> + - Sascha Hauer <s.hauer@...gutronix.de>
> +
> +properties:
> + compatible:
> + oneOf:
> + - description: on i.MX1 the following compatible must be specified
Such a description seems not necessary in order to make the doc more clean
> + items:
> + - const: "fsl,imx1-gpt"
> +
> + - description: on i.MX21 the following compatible must be specified
> + items:
> + - const: "fsl,imx21-gpt"
> +
> + - description: on i.MX27 the following compatibles must be specified
> + items:
> + - const: "fsl,imx27-gpt"
> + - const: "fsl,imx21-gpt"
> +
> + - description: on i.MX31 the following compatible must be specified
> + items:
> + - const: "fsl,imx31-gpt"
> +
> + - description: on i.MX25 the following compatibles must be specified
> + items:
> + - const: "fsl,imx25-gpt"
> + - const: "fsl,imx31-gpt"
> +
> + - description: on i.MX50 the following compatibles must be specified
> + items:
> + - const: "fsl,imx50-gpt"
> + - const: "fsl,imx31-gpt"
> +
> + - description: on i.MX51 the following compatibles must be specified
> + items:
> + - const: "fsl,imx51-gpt"
> + - const: "fsl,imx31-gpt"
> +
> + - description: on i.MX53 the following compatibles must be specified
> + items:
> + - const: "fsl,imx53-gpt"
> + - const: "fsl,imx31-gpt"
> +
> + - description: on i.MX6Q the following compatibles must be specified
> + items:
> + - const: "fsl,imx6q-gpt"
> + - const: "fsl,imx31-gpt"
> +
> + - description: on i.MX6DL the following compatible must be specified
> + items:
> + - const: "fsl,imx6dl-gpt"
> +
> + - description: on i.MX6SL the following compatibles must be specified
> + items:
> + - const: "fsl,imx6sl-gpt"
> + - const: "fsl,imx6dl-gpt"
> +
> + - description: on i.MX6SX the following compatibles must be specified
> + items:
> + - const: "fsl,imx6sx-gpt"
> + - const: "fsl,imx6dl-gpt"
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + items:
> + - description: SoC GPT ipg clock
> + - description: SoC GPT per clock
> + maxItems: 2
maxItems is not needed
> +
> + clock-names:
> + items:
> + - const: ipg
> + - const: per
> + maxItems: 2
Ditto
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> + - clocks
> + - clock-names
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/imx27-clock.h>
> +
> + timer@...03000 {
> + compatible = "fsl,imx27-gpt", "fsl,imx21-gpt";
> + reg = <0x10003000 0x1000>;
> + interrupts = <26>;
> + clocks = <&clks IMX27_CLK_GPT1_IPG_GATE>,
> + <&clks IMX27_CLK_PER1_GATE>;
> + clock-names = "ipg", "per";
> + };
> --
> 2.7.4
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