linux-kernel - Re: [PATCH 1/2] USB: ehci-omap: Don't select any PHY driver

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Date:	Tue, 16 Apr 2013 11:30:56 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Roger Quadros <rogerq@...com>
cc:	gregkh@...uxfoundation.org, <balbi@...com>, <holler@...oftware.de>,
	<linux-usb@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] USB: ehci-omap: Don't select any PHY driver

On Mon, 15 Apr 2013, Roger Quadros wrote:

> Don't select NOP_USB_XCEIV. Instead, board config
> must select USB_PHY and the appropriate PHY driver.
> 
> Also add a hint in Kconfig so that users enabling
> this driver manually enable the right PHY drivers as well.
> 
> Gets rid of the below warnings when USB_EHCI_HCD_OMAP
> is enabled.
> 
> warning: (USB_EHCI_HCD_OMAP) selects NOP_USB_XCEIV which has unmet direct dependencies (USB_SUPPORT && USB_PHY)
> warning: (USB_EHCI_HCD_OMAP) selects NOP_USB_XCEIV which has unmet direct dependencies (USB_SUPPORT && USB_PHY)
> 
> CC: Alan Stern <stern@...land.harvard.edu>
> Signed-off-by: Roger Quadros <rogerq@...com>
> ---
>  drivers/usb/host/Kconfig |    4 +++-
>  1 files changed, 3 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
> index c0be25c..c558472 100644
> --- a/drivers/usb/host/Kconfig
> +++ b/drivers/usb/host/Kconfig
> @@ -150,11 +150,13 @@ config USB_EHCI_MXC
>  config USB_EHCI_HCD_OMAP
>  	tristate "EHCI support for OMAP3 and later chips"
>  	depends on ARCH_OMAP
> -	select NOP_USB_XCEIV
>  	default y
>  	---help---
>  	  Enables support for the on-chip EHCI controller on
>  	  OMAP3 and later chips.
> +	  If your system uses a PHY on the USB port, you will need to
> +	  enable USB_PHY and the appropriate PHY driver as well. Most
> +	  boards need the NOP_USB_XCEIV PHY driver.
>  
>  config USB_EHCI_HCD_ORION
>  	tristate  "Support for Marvell EBU on-chip EHCI USB controller"

Acked-by: Alan Stern <stern@...land.harvard.edu>

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