linux-kernel - Re: [PATCH v2] arm: koelsch: make USB0 perform Host/Function switching

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Date:	Thu, 2 Jul 2015 14:32:11 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Phil Edworthy <phil.edworthy@...esas.com>,
	Simon Horman <horms@...ge.net.au>
Cc:	Magnus Damm <magnus.damm@...il.com>,
	Kishon Vijay Abraham I <kishon@...com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org, linux-sh@...r.kernel.org
Subject: Re: [PATCH v2] arm: koelsch: make USB0 perform Host/Function
 switching

Hello.

On 7/2/2015 11:14 AM, Phil Edworthy wrote:

> Both USB Host (pci0) and Function (USBHS) drivers are enabled.
> The USB PHY driver determines which IP block should be connected
> based on vbus and id signals read via gpios.

> Note that switch SW5 and SW6 on Koelsch board needs to be set to
> position 3 for this to work.

[...]

> diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts
> index cffe33f..1bb34d0 100644
> --- a/arch/arm/boot/dts/r8a7791-koelsch.dts
> +++ b/arch/arm/boot/dts/r8a7791-koelsch.dts
> @@ -615,7 +615,6 @@
>
>   &pci0 {
>   	status = "okay";
> -	pinctrl-0 = <&usb0_pins>;
>   	pinctrl-names = "default";

    As you're removing "pinctrl-0" prop, you also should remove "pinctrl-names".

>   };
>
> @@ -627,13 +626,15 @@
>
>   &hsusb {
>   	status = "okay";
> -	pinctrl-0 = <&usb0_pins>;

    Likewise.

[...]

WBR, Sergei

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