linux-kernel - Re: [PATCH] irqchip: renesas-intc-irqpin: Add optional functional clock to bindings

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Message-ID: <5509BC1E.8050802@cogentembedded.com>
Date:	Wed, 18 Mar 2015 20:55:42 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Geert Uytterhoeven <geert+renesas@...der.be>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>
CC:	linux-sh@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] irqchip: renesas-intc-irqpin: Add optional functional
 clock to bindings

Hello.

On 03/18/2015 07:37 PM, Geert Uytterhoeven wrote:

> This clock is managed since commit 705bc96c2c15313c ("irqchip:
> renesas-intc-irqpin: Add minimal runtime PM support").

> Also add an example while we're at.

> Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
> ---
>   .../interrupt-controller/renesas,intc-irqpin.txt   | 29 ++++++++++++++++++++++
>   1 file changed, 29 insertions(+)

> diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,intc-irqpin.txt b/Documentation/devicetree/bindings/interrupt-controller/renesas,intc-irqpin.txt
> index 4f7946ae8adcdc04..e7cfcec056159b93 100644
> --- a/Documentation/devicetree/bindings/interrupt-controller/renesas,intc-irqpin.txt
> +++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,intc-irqpin.txt
> @@ -25,3 +25,32 @@ Optional properties:
>     if different from the default 4 bits
>   - control-parent: disable and enable interrupts on the parent interrupt
>     controller, needed for some broken implementations
> +- clocks: Must contain a reference to the functional clock.  The property is
> +  mandatory if the hardware implements a controllable functional clock for
> +  the irqpin controller instance.
> +
> +
> +Example
> +-------
> +
> +	irqpin1: irqpin@...00004 {

    The node name should be "interrupt-controller@...00004".

> +		compatible = "renesas,intc-irqpin-r8a7740",
> +			     "renesas,intc-irqpin";
> +		#interrupt-cells = <2>;
> +		interrupt-controller;
> +		reg = <0xe6900004 4>,
> +			<0xe6900014 4>,
> +			<0xe6900024 1>,
> +			<0xe6900044 1>,
> +			<0xe6900064 1>;
> +		interrupts = <0 149 IRQ_TYPE_LEVEL_HIGH
> +			      0 149 IRQ_TYPE_LEVEL_HIGH
> +			      0 149 IRQ_TYPE_LEVEL_HIGH
> +			      0 149 IRQ_TYPE_LEVEL_HIGH
> +			      0 149 IRQ_TYPE_LEVEL_HIGH
> +			      0 149 IRQ_TYPE_LEVEL_HIGH
> +			      0 149 IRQ_TYPE_LEVEL_HIGH
> +			      0 149 IRQ_TYPE_LEVEL_HIGH>;

    Hm, 8 similar interrupts?

> +		clocks = <&mstp2_clks R8A7740_CLK_INTCA>;
> +		power-domains = <&pd_a4s>;
> +	};

WBR, Sergei

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