[v8,6/7] PCI: mediatek-gen3: Add system PM support
Jianjun Wang
jianjun.wang at mediatek.com
Fri Feb 26 10:06:43 GMT 2021
Hi Krzysztof,
Thanks for your suggestion, I will fix it in the next version.
On Thu, 2021-02-25 at 23:00 +0100, Krzysztof Wilczyński wrote:
> Hi Jianjun,
>
> [...]
> > Thanks for your review,
>
> Thank YOU for all the work here!
>
> [...]
> > > > Add suspend_noirq and resume_noirq callback functions to implement
> > > > PM system suspend hooks for MediaTek Gen3 PCIe controller.
> > >
> > > So, "systems suspend" and "resume" hooks, correct?
> >
> > The callback functions is suspend_noirq and resume_noirq, should I use
> > "systems suspend" and "resume" in the commit message?
> [...]
>
>
> What I meant was something along these lines:
>
> Add suspend_noirq and resume_noirq callback functions to implement PM
> system suspend and resume hooks for the MediaTek Gen3 PCIe controller.
>
> When the system suspends, trigger the PCIe link to enter the L2 state
> and pull down the PERST# pin, gating the clocks of the MAC layer, and
> then power-off the physical layer to provide power-saving.
>
> When the system resumes, the PCIe link should be re-established and the
> related control register values should be restored.
>
> The above is just a suggestion, thus feel tree to ignore it completely,
> and it's heavily based on your original commit message.
>
> Krzysztof
Thanks.
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