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authorLinus Torvalds <torvalds@linux-foundation.org>2019-01-19 05:46:00 +1200
committerLinus Torvalds <torvalds@linux-foundation.org>2019-01-19 05:46:00 +1200
commit6e434bf2e36b8a111c4dea6c1d1e355ad39ec01b (patch)
treec0d758cf24462e1400d63e05e0533d7e94dc61f7 /drivers
parent2a8cbf2a02784efc02f7093000010e20c4ebc9ea (diff)
parent11ee2a3808aebbec73096551a716dea03d417fcb (diff)
downloadlinux-6e434bf2e36b8a111c4dea6c1d1e355ad39ec01b.tar.bz2
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
Diffstat (limited to 'drivers')
-rw-r--r--drivers/acpi/Makefile3
-rw-r--r--drivers/acpi/bus.c24
-rw-r--r--drivers/acpi/internal.h4
-rw-r--r--drivers/ata/Kconfig2
-rw-r--r--drivers/gpu/vga/Kconfig1
-rw-r--r--drivers/platform/x86/Kconfig6
-rw-r--r--drivers/thermal/intel/int340x_thermal/Kconfig2
7 files changed, 24 insertions, 18 deletions
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 7c6afc111d76..bb857421c2e8 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -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
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 99d820a693a8..5c093ce01bcd 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -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
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 7e6952edb5b0..6a9e1fb8913a 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -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);
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 4ca7a6b4eaae..8218db17ebdb 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -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
diff --git a/drivers/gpu/vga/Kconfig b/drivers/gpu/vga/Kconfig
index b677e5d524e6..d5f1d8e1c6f8 100644
--- a/drivers/gpu/vga/Kconfig
+++ b/drivers/gpu/vga/Kconfig
@@ -21,6 +21,7 @@ config VGA_SWITCHEROO
bool "Laptop Hybrid Graphics - GPU switching support"
depends on X86
depends on ACPI
+ depends on PCI
select VGA_ARB
help
Many laptops released in 2008/9/10 have two GPUs with a multiplexer
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index e3b62c2ee8d1..5e2109c54c7c 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -1009,7 +1009,7 @@ config INTEL_MFLD_THERMAL
config INTEL_IPS
tristate "Intel Intelligent Power Sharing"
- depends on ACPI
+ depends on ACPI && PCI
---help---
Intel Calpella platforms support dynamic power sharing between the
CPU and GPU, maximizing performance in a given TDP. This driver,
@@ -1135,7 +1135,7 @@ config SAMSUNG_Q10
config APPLE_GMUX
tristate "Apple Gmux Driver"
- depends on ACPI
+ depends on ACPI && PCI
depends on PNP
depends on BACKLIGHT_CLASS_DEVICE
depends on BACKLIGHT_APPLE=n || BACKLIGHT_APPLE
@@ -1174,7 +1174,7 @@ config INTEL_SMARTCONNECT
config INTEL_PMC_IPC
tristate "Intel PMC IPC Driver"
- depends on ACPI
+ depends on ACPI && PCI
---help---
This driver provides support for PMC control on some Intel platforms.
The PMC is an ARC processor which defines IPC commands for communication
diff --git a/drivers/thermal/intel/int340x_thermal/Kconfig b/drivers/thermal/intel/int340x_thermal/Kconfig
index 0582bd12a239..0ca908d12750 100644
--- a/drivers/thermal/intel/int340x_thermal/Kconfig
+++ b/drivers/thermal/intel/int340x_thermal/Kconfig
@@ -4,7 +4,7 @@
config INT340X_THERMAL
tristate "ACPI INT340X thermal drivers"
- depends on X86 && ACPI
+ depends on X86 && ACPI && PCI
select THERMAL_GOV_USER_SPACE
select ACPI_THERMAL_REL
select ACPI_FAN