[PATCH] usb: host: ohci-at91: suspend/resume ports after/before OHCI accesses

Claudiu.Beznea at microchip.com Claudiu.Beznea at microchip.com
Wed Jun 23 07:33:14 PDT 2021


On 23.06.2021 17:19, Alan Stern wrote:
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> 
> On Wed, Jun 23, 2021 at 02:09:16PM +0000, Claudiu.Beznea at microchip.com wrote:
>> On 23.06.2021 16:59, Alan Stern wrote:
>>> One thing you might consider changing: The name of the
>>> ohci_at91_port_suspend routine is misleading.  It doesn't really
>>> handle suspending the port; instead it handles the clocks that drive
>>> the entire OHCI controller.  Right?
>>
>> It does both as far as I can tell at the moment.
> 
> But the name suggests that it only handles suspending a port.  That's
> misleading.
> 
> And the way it is used in the SetPortFeature(USB_PORT_FEAT_SUSPEND)
> case in ohci_at91_hub_control is just plain wrong.  It won't merely
> suspend a single port; it will disable the entire OHCI controller.

Agree with all the above!

> 
> Alan Stern
> 



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