Re: [PATCH] dt-bindings: virtio: mmio: add optional virtio,wakeup property

[Minghao Xue <quic_mingxue@quicinc.com>]

Hi Krzysztof,

Thanks for your comment. First of all, which "generic wakeup-source
property" do you mean? Could you give an example? I find "wakeup-source"
property in several binding files. Are you pointing to this? As my
understanding, there is no standard naming rule about the property of
each driver right? Currently, there's no virtio-mmio driver using this.
Anyway, I can modify my patch, if you prefer "wakeup-source".

Regards,
Minghao

On Fri, Mar 18, 2022 at 02:40:29PM +0100, Krzysztof Kozlowski wrote:
> On 18/03/2022 03:10, Minghao Xue wrote:
> > Hi Jean and folks,
> > This is just an optional flag which could be used on an embedded system.
> > For example, if we want to use an virtio-input device as a virtual power
> > key to wake up the virtual machine, we can set this flag in the device
> > tree.
> > Currently, virio-mmio driver does not implement suspend/resume
> > callback(maybe no need). So we want to check this flag and call
> > enable_irq_wake()  accordingly in vm_find_vqs().
> 
> There is a generic wakeup-source property. How is this one different
> that you need a separate one?
> 
> 
> Best regards,
> Krzysztof