Re: [PATCH] usb: host: ohci-at91: suspend/resume ports after/before OHCI accesses
From: Alan Stern <stern@rowland.harvard.edu>
Date: 2021-06-23 14:19:10
Also in:
linux-arm-kernel, lkml
From: Alan Stern <stern@rowland.harvard.edu>
Date: 2021-06-23 14:19:10
Also in:
linux-arm-kernel, lkml
On Wed, Jun 23, 2021 at 02:09:16PM +0000, Claudiu.Beznea@microchip.com wrote:
On 23.06.2021 16:59, Alan Stern wrote:quoted
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. Alan Stern