[PATCH v3 1/2] usb: dwc3: Add Keystone specific glue layer

Santosh Shilimkar santosh.shilimkar at ti.com
Thu Dec 12 14:36:01 EST 2013


On Thursday 12 December 2013 12:48 PM, Felipe Balbi wrote:
> Hi,
> 
> On Tue, Dec 10, 2013 at 10:11:36AM -0500, Santosh Shilimkar wrote:
>>>> +static int kdwc3_remove(struct platform_device *pdev)
>>>> +{
>>>> +	struct dwc3_keystone *kdwc = platform_get_drvdata(pdev);
>>>> +
>>>> +	kdwc3_disable_irqs(kdwc);
>>>> +	clk_disable_unprepare(kdwc->clk);
>>>
>>> I hope the clock isn't shared between core and wrapper, otherwise you
>>> could run into some troubles here. Can you confirm ?
>>>
>> Yes. the clock isn't shared. Thanks for taking care of other parts.
> 
> so clock for core is always running too ?
> 
I take that back. The clock is actually common so we should disable
it after removing the  kdwc3_remove_core() as you suggested.

You won't see issue since the  kdwc3_remove_core() not doing
any register access but moving the clock disable after
the core remove is right thing to do.

Regards,
Santosh



More information about the linux-arm-kernel mailing list