linux-kernel - Re: [PATCH v5 2/4] dt-bindings: timer: add i.MX EPIT timer binding

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Message-ID: <20180605152323.GA25218@rob-hp-laptop>
Date:   Tue, 5 Jun 2018 09:23:23 -0600
From:   Rob Herring <robh@...nel.org>
To:     Clément Péron <peron.clem@...il.com>
Cc:     Colin Didier <colin.didier@...ialet.com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        Vladimir Zapolskiy <vladimir_zapolskiy@...tor.com>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Clément Peron <clement.peron@...ialet.com>
Subject: Re: [PATCH v5 2/4] dt-bindings: timer: add i.MX EPIT timer binding

On Mon, Jun 04, 2018 at 12:00:33PM +0200, Clément Péron wrote:
> From: Clément Peron <clement.peron@...ialet.com>
> 
> Add devicetree binding document for NXP's i.MX SoC specific
> EPIT timer driver.
> 
> Signed-off-by: Clément Peron <clement.peron@...ialet.com>
> ---
>  .../devicetree/bindings/timer/fsl,imxepit.txt | 21 +++++++++++++++++++
>  1 file changed, 21 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/timer/fsl,imxepit.txt
> 
> diff --git a/Documentation/devicetree/bindings/timer/fsl,imxepit.txt b/Documentation/devicetree/bindings/timer/fsl,imxepit.txt
> new file mode 100644
> index 000000000000..de2e6ef68d24
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/timer/fsl,imxepit.txt
> @@ -0,0 +1,21 @@
> +Binding for the i.MX Enhanced Periodic Interrupt Timer (EPIT)
> +
> +The Enhanced Periodic Interrupt Timer (EPIT) is a 32-bit set-and-forget timer
> +that is capable of providing precise interrupts at regular intervals with
> +minimal processor intervention.
> +
> +Required properties:
> +- compatible: should be "fsl,<chip>-epit", "fsl,imx31-epit" where <chip> is
> +  imx25, imx6qdl, imx6sl, imx6sul or imx6sx.
> +- reg: physical base address of the controller and length of memory mapped
> +  region.
> +- interrupts: Should contain EPIT controller interrupt
> +- clocks : The clock provided by the SoC to drive the timer.
> +
> +Example for i.MX6QDL:
> +	epit1: epit@...0000 {

I think I already mentioned this, but:

timer@...

> +		compatible = "fsl,imx6qdl-epit", "fsl,imx31-epit";
> +		reg = <0x020d0000 0x4000>;
> +		interrupts = <0 56 IRQ_TYPE_LEVEL_HIGH>;
> +		clocks = <&clks IMX6QDL_CLK_EPIT1>;
> +	};
> -- 
> 2.17.0
>