linux-kernel - Re: [PATCH v2 9/9] ARM: dts: add usb udc support to bcm281xx

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Date:	Fri, 1 Nov 2013 18:52:36 -0400
From:	Matt Porter <matt.porter@...aro.org>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:	Felipe Balbi <balbi@...com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Kishon Vijay Abraham I <kishon@...com>,
	Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Kumar Gala <galak@...eaurora.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Christian Daudt <bcm@...thebug.org>,
	Paul Zimmerman <paulz@...opsys.com>,
	Linux USB List <linux-usb@...r.kernel.org>,
	Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Devicetree List <devicetree@...r.kernel.org>,
	Linaro Patches <patches@...aro.org>
Subject: Re: [PATCH v2 9/9] ARM: dts: add usb udc support to bcm281xx

On Fri, Nov 01, 2013 at 11:56:33PM +0300, Sergei Shtylyov wrote:
> Hello.
> 
> On 11/01/2013 10:45 PM, Matt Porter wrote:
> 
> >Adds USB OTG/PHY and clock support to BCM281xx and enables
> >UDC support on the bcm11351-brt and bcm28155-ap boards.
> 
> >Signed-off-by: Matt Porter <matt.porter@...aro.org>
> >Reviewed-by: Markus Mayer <markus.mayer@...aro.org>
> >Reviewed-by: Tim Kryger <tim.kryger@...aro.org>
> >---
> >  arch/arm/boot/dts/bcm11351-brt.dts |  6 ++++++
> >  arch/arm/boot/dts/bcm11351.dtsi    | 18 ++++++++++++++++++
> >  arch/arm/boot/dts/bcm28155-ap.dts  |  8 ++++++++
> >  3 files changed, 32 insertions(+)
> 
> [...]
> >diff --git a/arch/arm/boot/dts/bcm11351.dtsi b/arch/arm/boot/dts/bcm11351.dtsi
> >index 0755f43..247f9fd 100644
> >--- a/arch/arm/boot/dts/bcm11351.dtsi
> >+++ b/arch/arm/boot/dts/bcm11351.dtsi
> >@@ -284,4 +284,22 @@
> >  			#clock-cells = <0>;
> >  		};
> >  	};
> >+
> >+	usbotg: usbotg@...20000 {
> 
>    According to ePAPR spec [1], the node name should be "usb@...20000".

Will address in v3.

> >+		compatible = "snps,dwc2";
> >+		reg = <0x3f120000 0x10000>;
> >+		interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
> >+		clocks = <&usb_otg_ahb_clk>;
> >+		clock-names = "otg";
> >+		phys = <&usbphy>;
> >+		phy-names = "usb2-phy";
> >+		status = "disabled";
> >+	};
> >+
> >+	usbphy: usbphy@...30000 {
> 
>    This one should probably be named "usb-phy@...30000", just like
> "ethernet-phy" from the ePAPR spec.

Yes, agreed that will follow the same naming convention. I'll roll this
in v3. Thanks for the review.

-Matt

> >+		compatible = "brcm,kona-usb2-phy";
> >+		reg = <0x3f130000 0x28>;
> >+		#phy-cells = <0>;
> >+		status = "disabled";
> >+	};
> >  };
> 
> [1] http://www.power.org/resources/downloads/Power_ePAPR_APPROVED_v1.0.pdf
> 
> WBR, Sergei
> 
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