linux-kernel - Re: FIX ME in oxu210p-hcd.c

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Message-ID: <541F8370.4040705@gmail.com>
Date:	Sun, 21 Sep 2014 22:03:28 -0400
From:	nick <yocto6@...il.com>
To:	Peter Chen <Peter.Chen@...escale.com>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
CC:	"julia.lawall@...6.fr" <julia.lawall@...6.fr>,
	"oneukum@...e.de" <oneukum@...e.de>,
	"himangi774@...il.com" <himangi774@...il.com>,
	"stern@...land.harvard.edu" <stern@...land.harvard.edu>,
	"paul.gortmaker@...driver.com" <paul.gortmaker@...driver.com>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: FIX ME in  oxu210p-hcd.c



On 14-09-21 07:53 PM, Peter Chen wrote:
> 
>  
>> Subject: Re: FIX ME in oxu210p-hcd.c
>>
>>
>> I found a unfixed FIX ME in the file stated in my above message. I am
>> wondering what to set hcd->self.comtroller->dma_mask to as it's now been
>> defined to NULL and clearly even as a newbie this seem incorrect.
>> Regards Nick
> 
> Usually, it is set at its controller driver or pass through through device tree or
> platform data.
> 
> Peter
> 
Sorry Peter,
I apologize for asking for more help here but I will paste the function below and with my changes.
Please let me known if I am wrong and how to fix it as I new here.
Sorry for Wasting Your Time,
Nick 
static int oxu_reset(struct usb_hcd *hcd)
{
 	struct oxu_hcd *oxu = hcd_to_oxu(hcd);
 	int ret;

 	spin_lock_init(&oxu->mem_lock);
 	INIT_LIST_HEAD(&oxu->urb_list);
	oxu->urb_len = 0;

-	/* FIMXE */
+ 	hcd->self.controller->dma_mask = hcd->regs;

 	if (oxu->is_otg) {
		oxu->caps = hcd->regs + OXU_OTG_CAP_OFFSET;
		oxu->regs = hcd->regs + OXU_OTG_CAP_OFFSET + \
			HC_LENGTH(readl(&oxu->caps->hc_capbase));
 
		oxu->mem = hcd->regs + OXU_SPH_MEM;
	} else {
		oxu->caps = hcd->regs + OXU_SPH_CAP_OFFSET;
 		oxu->regs = hcd->regs + OXU_SPH_CAP_OFFSET + \
 			HC_LENGTH(readl(&oxu->caps->hc_capbase));

 		oxu->mem = hcd->regs + OXU_OTG_MEM;
	}

 	oxu->hcs_params = readl(&oxu->caps->hcs_params);
 	oxu->sbrn = 0x20;

	ret = oxu_hcd_init(hcd);
	if (ret)
 		return ret;
 
 	return 0;
}
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