Thanks for the fix Arnd. Thought I could get away with not adding the dependency since the function is stubbed but didn't realize struct acpi_device wouldn't be defined. Should have build tested it. David On Wed, 2021-04-21 at 15:49 +0200, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@xxxxxxxx> > > The driver now fails to build without ACPI: > > drivers/platform/x86/intel_pmc_core.c: In function > 'pmc_core_get_tgl_lpm_reqs': > drivers/platform/x86/intel_pmc_core.c:617:41: error: invalid use of > undefined type 'struct acpi_device' > 617 | out_obj = acpi_evaluate_dsm(adev->handle, > &s0ix_dsm_guid, 0, > > This could probably be made optional, but it won't be used without > ACPI in practice, so just add a Kconfig dependency. > > Fixes: 428131364f00 ("platform/x86: intel_pmc_core: Get LPM > requirements for Tiger Lake") > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> > --- > drivers/platform/x86/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/platform/x86/Kconfig > b/drivers/platform/x86/Kconfig > index 697fc446ac41..2714f7c3843e 100644 > --- a/drivers/platform/x86/Kconfig > +++ b/drivers/platform/x86/Kconfig > @@ -1194,6 +1194,7 @@ config INTEL_MRFLD_PWRBTN > config INTEL_PMC_CORE > tristate "Intel PMC Core driver" > depends on PCI > + depends on ACPI > help > The Intel Platform Controller Hub for Intel Core SoCs > provides access > to Power Management Controller registers via various > interfaces. This