linux-kernel - RE: [PATCH 3/3] usb: chipidea: hw_phymode_configure moved before ci_usb_phy

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Date:	Fri, 29 Nov 2013 03:31:14 +0000
From:	Peter Chen <Peter.Chen@...escale.com>
To:	Chris Ruehl <chris.ruehl@...ys.com.hk>,
	"alexander.shishkin@...ux.intel.com" 
	<alexander.shishkin@...ux.intel.com>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
CC:	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 3/3] usb: chipidea: hw_phymode_configure moved before
 ci_usb_phy_init

 
> 
> hw_phymode_configure configures the PORTSC registers and allow the
> following phy_inits to operate on the right parameters. This fix a
> problem
> where the UPLI (ISP1504) could not detected, because the Viewport was not
> available and returns 0's only.
> 
> Signed-off-by: Chris Ruehl <chris.ruehl@...ys.com.hk>
> ---
>  drivers/usb/chipidea/core.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
> index 1a6010e..f915538 100644
> --- a/drivers/usb/chipidea/core.c
> +++ b/drivers/usb/chipidea/core.c
> @@ -566,6 +566,8 @@ static int ci_hdrc_probe(struct platform_device *pdev)
>  		return -ENODEV;
>  	}
> 
> +	hw_phymode_configure(ci);
> +
>  	ret = ci_usb_phy_init(ci);
>  	if (ret) {
>  		dev_err(dev, "unable to init phy: %d\n", ret);
> @@ -583,8 +585,6 @@ static int ci_hdrc_probe(struct platform_device *pdev)
> 
>  	ci_get_otg_capable(ci);
> 
> -	hw_phymode_configure(ci);
> -
>  	dr_mode = ci->platdata->dr_mode;
>  	/* initialize role(s) before the interrupt is requested */
>  	if (dr_mode == USB_DR_MODE_OTG || dr_mode == USB_DR_MODE_HOST) {
> --
> 1.7.10.4
> 
> --

Acked-by: Peter Chen <peter.chen@...escale.com>

Peter


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