linux-kernel - Re: [PATCH 2/2] ARM: Exynos5250: Enabling USB 3.0 phy for samsung-usbphy driver

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Message-ID: <50D0FD13.5060508@gmail.com>
Date:	Wed, 19 Dec 2012 00:32:35 +0100
From:	Sylwester Nawrocki <sylvester.nawrocki@...il.com>
To:	Vivek Gautam <gautam.vivek@...sung.com>
CC:	linux-samsung-soc@...r.kernel.org, linux-usb@...r.kernel.org,
	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	kgene.kim@...sung.com, balbi@...com, thomas.abraham@...aro.org,
	rob.herring@...xeda.com, grant.likely@...retlab.ca,
	p.paneri@...sung.com
Subject: Re: [PATCH 2/2] ARM: Exynos5250: Enabling USB 3.0 phy for samsung-usbphy
 driver

On 12/18/2012 04:39 PM, Vivek Gautam wrote:
> Adding base address information required for enabling
> USB 3.0 DRD phy on exynos5250 SOC.
>
> Signed-off-by: Vivek Gautam<gautam.vivek@...sung.com>
> ---
>   arch/arm/boot/dts/exynos5250.dtsi |    3 ++-
>   1 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
> index bbdb2c2..07b7477 100644
> --- a/arch/arm/boot/dts/exynos5250.dtsi
> +++ b/arch/arm/boot/dts/exynos5250.dtsi
> @@ -316,7 +316,8 @@
>
>   	usbphy@...30000 {
>   		compatible = "samsung,exynos5250-usbphy";
> -		reg =<0x12130000 0x100>;
> +		reg =<0x12130000 0x100>,
> +		<0x12100000 0x100>;

Doesn't this second memory region mean distinct PHY controller device ?
Why separate usbphy node can't/shouldn't be created for it ?

>   		samsung,usb-phyhandle =<&phy_h0&phy_h1&phy_h2>;
>   		samsung,enable-mask =<1>;
>   	};
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