Commit 6e434bf2 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'acpi-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 

Pull ACPI fixes from Rafael Wysocki:
 "These fix an ACPI initialization ordering issue introduced in the 4.17
  time frame and causing functional problems to appear on multiple
  systems and fix some fallout of the recent change to enable building
  kernels with ACPI support and without PCI.

  Specifics:

   - Restore the ACPI initialization ordering changed implicitly by the
     module-level AML handling rework during the 4.17 development cycle
     that caused the EC address space handler based on information from
     ECDT to be set up before loading AML definition blocks, making it
     effectively not accessible by AML on some systems that don't work
     as expected any more (Rafael Wysocki).

   - Add direct dependencies on PCI to Kconfig in multiple places for
     code that depends on both ACPI and PCI, but the PCI dependency was
     implicitly satisfied by the ACPI dependency before, to prevent
     invalid configurations from being created, for example by
     randconfig (Sinan Kaya)"

* tag 'acpi-5.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: EC: Look for ECDT EC after calling acpi_load_tables()
  drivers: thermal: int340x_thermal: Make PCI dependency explicit
  x86/intel/lpss: Make PCI dependency explicit
  platform/x86: apple-gmux: Make PCI dependency explicit
  platform/x86: intel_pmc: Make PCI dependency explicit
  platform/x86: intel_ips: make PCI dependency explicit
  vga-switcheroo: make PCI dependency explicit
  ata: pata_acpi: Make PCI dependency explicit
  ACPI / LPSS: Make PCI dependency explicit
parents 2a8cbf2a 11ee2a38

arch/x86/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -617,7 +617,7 @@ config X86_INTEL_QUARK 


config X86_INTEL_LPSS

	bool "Intel Low Power Subsystem Support"

	depends on X86 && ACPI

	depends on X86 && ACPI && PCI

	select COMMON_CLK

	select PINCTRL

	select IOSF_MBI

drivers/acpi/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -41,7 +41,8 @@ acpi-y += ec.o 
acpi-$(CONFIG_ACPI_DOCK)	+= dock.o

acpi-$(CONFIG_PCI)		+= pci_root.o pci_link.o pci_irq.o

obj-$(CONFIG_ACPI_MCFG)		+= pci_mcfg.o

acpi-y				+= acpi_lpss.o acpi_apd.o

acpi-$(CONFIG_PCI)		+= acpi_lpss.o

acpi-y				+= acpi_apd.o

acpi-y				+= acpi_platform.o

acpi-y				+= acpi_pnp.o

acpi-$(CONFIG_ARM_AMBA)	+= acpi_amba.o

drivers/acpi/bus.c

+12 −12
Original line number Diff line number Diff line
@@ -1054,18 +1054,6 @@ void __init acpi_early_init(void) 
		goto error0;

	}



	/*

	 * ACPI 2.0 requires the EC driver to be loaded and work before

	 * the EC device is found in the namespace (i.e. before

	 * acpi_load_tables() is called).

	 *

	 * This is accomplished by looking for the ECDT table, and getting

	 * the EC parameters out of that.

	 *

	 * Ignore the result. Not having an ECDT is not fatal.

	 */

	status = acpi_ec_ecdt_probe();



#ifdef CONFIG_X86

	if (!acpi_ioapic) {

		/* compatible (0) means level (3) */
@@ -1142,6 +1130,18 @@ static int __init acpi_bus_init(void) 
		goto error1;

	}



	/*

	 * ACPI 2.0 requires the EC driver to be loaded and work before the EC

	 * device is found in the namespace.

	 *

	 * This is accomplished by looking for the ECDT table and getting the EC

	 * parameters out of that.

	 *

	 * Do that before calling acpi_initialize_objects() which may trigger EC

	 * address space accesses.

	 */

	acpi_ec_ecdt_probe();



	status = acpi_enable_subsystem(ACPI_NO_ACPI_ENABLE);

	if (ACPI_FAILURE(status)) {

		printk(KERN_ERR PREFIX

drivers/acpi/internal.h

+4 −0
Original line number Diff line number Diff line
@@ -81,7 +81,11 @@ void acpi_debugfs_init(void); 
#else

static inline void acpi_debugfs_init(void) { return; }

#endif

#ifdef CONFIG_PCI

void acpi_lpss_init(void);

#else

static inline void acpi_lpss_init(void) {}

#endif



void acpi_apd_init(void);

drivers/ata/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -1091,7 +1091,7 @@ comment "Generic fallback / legacy drivers" 


config PATA_ACPI

	tristate "ACPI firmware driver for PATA"

	depends on ATA_ACPI && ATA_BMDMA

	depends on ATA_ACPI && ATA_BMDMA && PCI

	help

	  This option enables an ACPI method driver which drives

	  motherboard PATA controller interfaces through the ACPI

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