linux-kernel - Re: [PATCH 1/6] usb: dwc2/gadget: move phy bus legth initialization

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Date:	Thu, 25 Sep 2014 14:26:58 +0200
From:	Marek Szyprowski <m.szyprowski@...sung.com>
To:	Robert Baldyga <r.baldyga@...sung.com>, Paul.Zimmerman@...opsys.com
Cc:	gregkh@...uxfoundation.org, balbi@...com,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	Kamil Debski <k.debski@...sung.com>
Subject: Re: [PATCH 1/6] usb: dwc2/gadget: move phy bus legth initialization

Hi Greg and Paul,

On 2014-09-09 10:44, Robert Baldyga wrote:
> From: Kamil Debski <k.debski@...sung.com>
>
> This patch moves the part of code that initializes the PHY bus width.
> This results in simpler code and removes the need to check whether
> the Generic PHY Framework is used.

I've noticed that patches from this patchset have been finally merged to
usb-next tree, but I cannot find this patch there. Is there any reason for
dropping it?

> Signed-off-by: Kamil Debski <k.debski@...sung.com>
> Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
> Signed-off-by: Robert Baldyga <r.baldyga@...sung.com>
> ---
>   drivers/usb/dwc2/gadget.c | 22 +++++++++++-----------
>   1 file changed, 11 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
> index ce6071d..9cbe136 100644
> --- a/drivers/usb/dwc2/gadget.c
> +++ b/drivers/usb/dwc2/gadget.c
> @@ -3392,6 +3392,9 @@ static int s3c_hsotg_probe(struct platform_device *pdev)
>   	if (!hsotg)
>   		return -ENOMEM;
>   
> +	/* Set default UTMI width */
> +	hsotg->phyif = GUSBCFG_PHYIF16;
> +
>   	/*
>   	 * Attempt to find a generic PHY, then look for an old style
>   	 * USB PHY, finally fall back to pdata
> @@ -3410,8 +3413,15 @@ static int s3c_hsotg_probe(struct platform_device *pdev)
>   			hsotg->plat = plat;
>   		} else
>   			hsotg->uphy = uphy;
> -	} else
> +	} else {
>   		hsotg->phy = phy;
> +		/*
> +		 * If using the generic PHY framework, check if the PHY bus
> +		 * width is 8-bit and set the phyif appropriately.
> +		 */
> +		if (phy_get_bus_width(phy) == 8)
> +			hsotg->phyif = GUSBCFG_PHYIF8;
> +	}
>   
>   	hsotg->dev = dev;
>   
> @@ -3471,16 +3481,6 @@ static int s3c_hsotg_probe(struct platform_device *pdev)
>   		goto err_supplies;
>   	}
>   
> -	/* Set default UTMI width */
> -	hsotg->phyif = GUSBCFG_PHYIF16;
> -
> -	/*
> -	 * If using the generic PHY framework, check if the PHY bus
> -	 * width is 8-bit and set the phyif appropriately.
> -	 */
> -	if (hsotg->phy && (phy_get_bus_width(phy) == 8))
> -		hsotg->phyif = GUSBCFG_PHYIF8;
> -
>   	/* usb phy enable */
>   	s3c_hsotg_phy_enable(hsotg);
>   

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland

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