linux-kernel - Re: [PATCH v3 2/4] usb: dwc3: Add Google Tensor SoC DWC3 glue driver

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Message-ID: <CA+zupgxbGjU_01JSFR_-2humZAyxwcVT5JR6h6mTVUT=3fFQ6Q@mail.gmail.com>
Date: Wed, 15 Oct 2025 10:39:53 -0700
From: Roy Luo <royluo@...gle.com>
To: Thinh Nguyen <Thinh.Nguyen@...opsys.com>
Cc: Vinod Koul <vkoul@...nel.org>, Kishon Vijay Abraham I <kishon@...nel.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Philipp Zabel <p.zabel@...gutronix.de>, 
	Peter Griffin <peter.griffin@...aro.org>, André Draszik <andre.draszik@...aro.org>, 
	Tudor Ambarus <tudor.ambarus@...aro.org>, Joy Chakraborty <joychakr@...gle.com>, 
	Naveen Kumar <mnkumar@...gle.com>, Badhri Jagan Sridharan <badhri@...gle.com>, 
	"linux-phy@...ts.infradead.org" <linux-phy@...ts.infradead.org>, 
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, 
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, 
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>, 
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, 
	"linux-samsung-soc@...r.kernel.org" <linux-samsung-soc@...r.kernel.org>
Subject: Re: [PATCH v3 2/4] usb: dwc3: Add Google Tensor SoC DWC3 glue driver

On Tue, Oct 14, 2025 at 5:28 PM Thinh Nguyen <Thinh.Nguyen@...opsys.com> wrote:
>
> Hi,
>
> On Fri, Oct 10, 2025, Roy Luo wrote:
> > +#endif /* CONFIG_PM */
> > +
> > +static const struct dev_pm_ops dwc3_google_dev_pm_ops = {
> > +     SET_SYSTEM_SLEEP_PM_OPS(dwc3_google_pm_suspend, dwc3_google_pm_resume)
> > +     SET_RUNTIME_PM_OPS(dwc3_google_runtime_suspend, dwc3_google_runtime_resume,
> > +                        dwc3_google_runtime_idle)
>
> Can we use the new pm_ptr() and *_PM_OPS macros to get rid of the ifdef
> CONFIG_PM guards?

Yes, will replace it with pm_ptr in the next patch.
P.S. The kernel test robot is also complaining about it. [1]

[1] https://lore.kernel.org/linux-usb/202510111335.oyOAs9MB-lkp@intel.com/

>
> > +     .complete = dwc3_google_complete,
> > +     .prepare = dwc3_google_prepare,
> > +};
> > +
> > +static const struct of_device_id dwc3_google_of_match[] = {
> > +     { .compatible = "google,gs5-dwc3" },
> > +     { }
> > +};
> > +MODULE_DEVICE_TABLE(of, dwc3_google_of_match);
> > +
> > +static struct platform_driver dwc3_google_driver = {
> > +     .probe          = dwc3_google_probe,
> > +     .remove         = dwc3_google_remove,
> > +     .driver         = {
> > +             .name   = "google-dwc3",
> > +             .pm     = &dwc3_google_dev_pm_ops,
> > +             .of_match_table = dwc3_google_of_match,
> > +     },
> > +};
> > +
> > +module_platform_driver(dwc3_google_driver);
> > +MODULE_LICENSE("GPL");
> > +MODULE_DESCRIPTION("DesignWare DWC3 Google Glue Driver");
> > --
> > 2.51.0.740.g6adb054d12-goog
> >
>
> Give me some time, and I'll review the rest of this patch.

Thanks Thinh! and a heads up, I'm splitting this patset into
two separate series as Krzysztof suggested; one for the
controller and one for the phy, so the series title might
change in the next version.

Regards,
Roy Luo

>
> Thanks,
> Thinh