Re: [PATCH v8 1/6] platform/x86: intel_lpss: add resource conflict quirk for Dell Latitude 5285

[Andy Shevchenko]

On Thu, Aug 27, 2026 at 10:13:58AM +0300, Andy Shevchenko wrote:
> Again, there is an in-thread new version, DO NOT DO this!
> If you send a new version, start a *new* email thread.
> With that, the v8 has no cover letter...
> 
> Note, using `b4` tool will help you in preparing patch series properly.
> 
> On Wed, Aug 26, 2026 at 01:24:46PM +0200, Thierry Chatard wrote:
> 
> > The Dell Latitude 5285 2-in-1 has a BIOS bug where the ACPI GEXP device
> > and the I2C4 controller (INT3446) both claim the same MMIO region via the
> > shared SB04 variable. This causes intel_lpss_acpi to fail binding to I2C4
> > with -EBUSY, preventing the front camera (OV5670) sensor from being
> > registered.
> > 
> > Match the affected machine by DMI and the affected device by ACPI ID,
> > carrying QUIRK_IGNORE_RESOURCE_CONFLICTS in the ACPI match data and
> > applying it to the per-device info in probe. This follows the quirk
> > organisation used by the PCI counterpart.
> 
> It's okay now,

Ah, actually not. The subject prefix must be "mfd: intel-lpss: ..."

> Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxx>

So, this tag only applies if the above is being addressed.

-- 
With Best Regards,
Andy Shevchenko