On Wed, Dec 19, 2018 at 07:09:10AM +0000, Anson Huang wrote:
> The i.MX GPT timer driver binding doc is out of date,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@xxxxxxx>
> ---
> .../devicetree/bindings/timer/fsl,imxgpt.txt | 35 ++++++++++++++++++----
> 1 file changed, 29 insertions(+), 6 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt b/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
> index 9809b11..a7f23a6 100644
> --- a/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
> +++ b/Documentation/devicetree/bindings/timer/fsl,imxgpt.txt
> @@ -2,17 +2,40 @@ Freescale i.MX General Purpose Timer (GPT)
>
> Required properties:
>
> -- compatible : should be "fsl,<soc>-gpt"
> -- reg : Specifies base physical address and size of the registers.
> -- interrupts : A list of 4 interrupts; one per timer channel.
> -- clocks : The clocks provided by the SoC to drive the timer.
> +- compatible : should be one of following:
> +
> + should be "fsl,imx1-gpt" for i.MX1;
> +
> + should be one of following for i.MX21/i.MX27:
> + - "fsl,imx21-gpt",
> + - "fsl,imx27-gpt",
What this says and your example still don't match. I think you want:
- "fsl,imx21-gpt"
- "fsl,imx27-gpt", "fsl,imx21-gpt"
> +
> + should be one of following for i.MX31/i.MX25/i.MX50/i.MX51/i.MX53/i.MX6Q:
> + - "fsl,imx31-gpt",
> + - "fsl,imx25-gpt",
> + - "fsl,imx50-gpt",
> + - "fsl,imx51-gpt",
> + - "fsl,imx53-gpt",
> + - "fsl,imx6q-gpt",
I'm sure some of these are backwards compatible.
> +
> + should be one of following for i.MX6DL/i.MX6SL/i.MX6SX:
> + - "fsl,imx6dl-gpt",
> + - "fsl,imx6sl-gpt",
> + - "fsl,imx6sx-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@10003000 {
> - compatible = "fsl,imx27-gpt", "fsl,imx1-gpt";
> + compatible = "fsl,imx27-gpt", "fsl,imx21-gpt";
> reg = <0x10003000 0x1000>;
> interrupts = <26>;
> - clocks = <&clks 46>, <&clks 61>;
> + clocks = <&clks IMX27_CLK_GPT1_IPG_GATE>,
> + <&clks IMX27_CLK_PER1_GATE>;
> clock-names = "ipg", "per";
> };
> --
> 2.7.4
>
