Subject: [PATCH v2 1/8] ohci-nxp: Driver cleanup

From: [email-masked] (Roland Stigge)
Date: Wed, 18 Apr 2012 10:23:53 +0200

On 04/17/2012 10:57 PM, Dan Carpenter wrote:
> On Tue, Apr 17, 2012 at 07:08:20PM +0200, Roland Stigge wrote:
>> @@ -435,6 +436,7 @@ static int __devinit usb_hcd_nxp_probe(s
>>  	}
>>  
>>  	__raw_writel(__raw_readl(USB_CTRL) | USB_HOST_NEED_CLK_EN, USB_CTRL);
>> +	__raw_writel(__raw_readl(USB_CTRL) & ~USB_DEV_NEED_CLK_EN, USB_CTRL);
>>  
>>  	/* Set to enable all needed USB clocks */
>>  	__raw_writel(USB_CLOCK_MASK, USB_OTG_CLK_CTRL);
> 
> What does this chunk do?  Is this part of the "* Fixed controller
> initialization (bits)" bullet point?  How does it affect the user?
> Should it be included in the 3.4 kernel?

Thanks for the hint! I will drop this hunk. Originally, it made sure
that USB_DEV_NEED_CLK_EN is disabled but due to another change:

usb_hcd_nxp_probe() {
...
__raw_writel(USB_SLAVE_HCLK_EN | PAD_CONTROL_LAST_DRIVEN, USB_CTRL);

this bit is already cleared anyway.

(Would have been uncritical for v3.4 anyway, relating only to the other
changes introduced in my 3.5 patches.)

Roland