linux-kernel - Re: [PATCH v2 1/3] arm/dts: Add twl6030-usb data

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Date:	Tue, 11 Sep 2012 11:26:44 +0200
From:	Benoit Cousson <b-cousson@...com>
To:	Kishon Vijay Abraham I <kishon@...com>
CC:	<balbi@...com>, <linux@....linux.org.uk>,
	<rob.herring@...xeda.com>, <grant.likely@...retlab.ca>,
	<tony@...mide.com>, <rnayak@...com>, <hvaibhav@...com>,
	<peter.ujfalusi@...com>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/3] arm/dts: Add twl6030-usb data

On 09/11/2012 08:36 AM, Kishon Vijay Abraham I wrote:
> Add twl6030-usb data node in twl6030 device tree file
> 
> Acked-by: Felipe Balbi <balbi@...com>
> Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
> ---
>  arch/arm/boot/dts/omap4-panda.dts |    4 ++++
>  arch/arm/boot/dts/omap4-sdp.dts   |    4 ++++
>  arch/arm/boot/dts/twl6030.dtsi    |    5 +++++
>  3 files changed, 13 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/omap4-panda.dts b/arch/arm/boot/dts/omap4-panda.dts
> index 9880c12..2999eba 100644
> --- a/arch/arm/boot/dts/omap4-panda.dts
> +++ b/arch/arm/boot/dts/omap4-panda.dts
> @@ -126,3 +126,7 @@
>  	ti,non-removable;
>  	bus-width = <4>;
>  };
> +
> +&twlusb {
> +	usb-supply = <&vusb>;
> +};
> diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
> index 72216e9..d8290c0 100644
> --- a/arch/arm/boot/dts/omap4-sdp.dts
> +++ b/arch/arm/boot/dts/omap4-sdp.dts
> @@ -226,3 +226,7 @@
>  	bus-width = <4>;
>  	ti,non-removable;
>  };
> +
> +&twlusb {
> +	usb-supply = <&vusb>;
> +};
> diff --git a/arch/arm/boot/dts/twl6030.dtsi b/arch/arm/boot/dts/twl6030.dtsi
> index 3b2f351..8e3aac9 100644
> --- a/arch/arm/boot/dts/twl6030.dtsi
> +++ b/arch/arm/boot/dts/twl6030.dtsi
> @@ -83,4 +83,9 @@
>  	clk32kg: regulator@12 {
>  		compatible = "ti,twl6030-clk32kg";
>  	};
> +
> +	twlusb: twl6030-usb {

That name should be a generic device class name is possible.
What is twl6030-usb exactly? an USB PHY?

> +		compatible = "ti,twl6030-usb";
> +		interrupts = < 4 10 >;

If this is for two interrupts, you'd better split them to avoid
confusion with irq specifiers that requires several attributes like for
the GIC.

+		interrupts = <4>, <10>; /* IRQ1 blabla, IRQ2 blabla*/

The comments are not mandatory assuming the binding is documented.

Regards,
Benoit


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