Re: [PATCH 2/2] usb: dwc3: pci add property to allow user space role switch

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On 8/24/2021 9:47 PM, Felipe Balbi wrote:

"Shah, Nehal-bakulchandra" <nehal-bakulchandra.shah@xxxxxxx> writes:

Hi
On 8/24/2021 1:49 PM, Felipe Balbi wrote:
Nehal Bakulchandra Shah <Nehal-Bakulchandra.shah@xxxxxxx> writes:

For AMD platform there is a requirement to enable user space role
switch from host to device and device to host by means of running
following commands.

HOST:   echo host > /sys/class/usb_role/dwc3.0.auto-role-switch/role
DEVICE: echo device > /sys/class/usb_role/dwc3.0.auto-role-switch/role
A more important question that needs to be answered: why?

Our customer platform is not completely capable of OTG i.e with type C
controller it does not have PD to support role switching. Hence, they
have script which triggers the role switch based on ACPI/EC interrupt.

sounds like some generalized version of this text should be added to
commit log.

Sure i will resubmit this patch with this description should be ok?

Nehal



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