Re: [PATCH v11 0/4] Firmware Support for USB-HID Devices and CP2112

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On Thu, Jun 06, 2024 at 10:54:53AM -0500, Danny Kaehn wrote:
> On Thu, Jun 06, 2024 at 02:42:42AM +0300, Andy Shevchenko wrote:
> > On Wed, Jun 05, 2024 at 06:12:43PM -0500, Danny Kaehn wrote:

...

> > > Changes in v11:
> > > - Eliminate 'gpio' subnode for DT and ACPI for the CP2112 per comment
> > >     from Rob H.
> > 
> > Hmm... I don't know much about DT, but how is this supposed to work in ACPI?
> > I mean if we want to refer to the GPIO in GpioIo() or GpioInt() resources,
> > what should we put there as ACPI path?
> 
> What I tested was essentially taking what Benjamin had done in [1], just
> removing the "GPIO" device and combining it with the parent device (the
> CP2112 itself). So for the example below, I believe the path would be
> "\_SB_.PCI0.SE9_.RHUB.CP2_". If I get the chance (and can figure out how
> to do it using ACPI) I'll try to add a "gpio-keys" or something to the
> system using this path and make sure that works.

This is counter intuitive and doesn't follow other (ACPI) devices with GPIO.
So whatever you do for DT I don't care much, but let's not remove subnode
for ACPI case.

...

> Full example within context:

Thank you!

-- 
With Best Regards,
Andy Shevchenko






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