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dt-bindings: timer: gpt: update binding doc
The i.MX GPT timer driver binding doc is out of date, update it according to current GPT timer driver. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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@ -2,17 +2,44 @@ Freescale i.MX General Purpose Timer (GPT)
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Required properties:
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- compatible : should be "fsl,<soc>-gpt"
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- reg : Specifies base physical address and size of the registers.
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- interrupts : A list of 4 interrupts; one per timer channel.
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- clocks : The clocks provided by the SoC to drive the timer.
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- compatible : should be one of following:
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for i.MX1:
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- "fsl,imx1-gpt";
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for i.MX21:
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- "fsl,imx21-gpt";
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for i.MX27:
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- "fsl,imx27-gpt", "fsl,imx21-gpt";
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for i.MX31:
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- "fsl,imx31-gpt";
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for i.MX25:
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- "fsl,imx25-gpt", "fsl,imx31-gpt";
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for i.MX50:
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- "fsl,imx50-gpt", "fsl,imx31-gpt";
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for i.MX51:
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- "fsl,imx51-gpt", "fsl,imx31-gpt";
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for i.MX53:
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- "fsl,imx53-gpt", "fsl,imx31-gpt";
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for i.MX6Q:
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- "fsl,imx6q-gpt", "fsl,imx31-gpt";
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for i.MX6DL:
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- "fsl,imx6dl-gpt";
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for i.MX6SL:
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- "fsl,imx6sl-gpt", "fsl,imx6dl-gpt";
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for i.MX6SX:
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- "fsl,imx6sx-gpt", "fsl,imx6dl-gpt";
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- reg : specifies base physical address and size of the registers.
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- interrupts : should be the gpt interrupt.
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- clocks : the clocks provided by the SoC to drive the timer, must contain
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an entry for each entry in clock-names.
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- clock-names : must include "ipg" entry first, then "per" entry.
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Example:
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gpt1: timer@10003000 {
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compatible = "fsl,imx27-gpt", "fsl,imx1-gpt";
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compatible = "fsl,imx27-gpt", "fsl,imx21-gpt";
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reg = <0x10003000 0x1000>;
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interrupts = <26>;
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clocks = <&clks 46>, <&clks 61>;
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clocks = <&clks IMX27_CLK_GPT1_IPG_GATE>,
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<&clks IMX27_CLK_PER1_GATE>;
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clock-names = "ipg", "per";
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};
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