Merge tag 'acpi-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI support updates from Rafael Wysocki:
 "These update the ACPICA code in the kernel to upstream version
  20260408, introduce support for devres-based management of ACPI notify
  handlers and update some core ACPI device drivers on top of that
  (which includes some fixes and cleanups), add _DEP support for PCI/CXL
  roots and Intel CVS devices, fix a couple of assorted issues and clean
  up code:

   - Fix multiple issues related to probe, removal and missing NVDIMM
     device notifications in the ACPI NFIT driver (Rafael Wysocki)

   - Add support for devres-based management of ACPI notify handlers to
     the ACPI core (Rafael Wysocki)

   - Switch multiple core ACPI device drivers (including the ACPI PAD,
     ACPI video bus, ACPI HED, ACPI thermal zone, ACPI AC, ACPI battery,
     and ACPI NFIT drivers) over to using devres-based resource
     management during probe (Rafael Wysocki)

   - Replace mutex_lock/unlock() with guard()/scoped_guard() in the ACPI
     PMIC driver (Maxwell Doose)

   - Fix message kref handling in the dead device path of the ACPI IPMI
     address space handler (Yuho Choi)

   - Use sysfs_emit() in idlecpus_show() in the ACPI processor
     aggregator device (PAD) driver (Yury Norov)

   - Clean up device_id_scheme initialization in the ACPI video bus
     driver (Jean-Ralph Aviles)

   - Clean up lid handling in the ACPI button driver and
     acpi_button_probe(), reorganize installing and removing event
     handlers in that driver and switch it over to using devres-based
     resource management during probe (Rafael Wysocki)

   - Add support for the Legacy Virtual Register (LVR) field in I2C
     serial bus resource descriptors to ACPICA (Akhil R)

   - Fix multiple issues related to bounds checks, input validation,
     use-after-free, and integer overflow checks in the AML interpreter
     in ACPICA (ikaros)

   - Update the copyright year to 2026 in ACPICA files and make minor
     changes related to ACPI 6.6 support (Pawel Chmielewski)

   - Remove spurious precision from format used to dump parse trees in
     ACPICA (David Laight)

   - Add modern standby DSM GUIDs to ACPICA header files (Daniel
     Schaefer)

   - Fix FADT 32/64X length mismatch warning in ACPICA (Abdelkader
     Boudih)

   - Update D3hot/cold device power states definitions in ACPICA header
     files (Aymeric Wibo)

   - Fix NULL pointer dereference in acpi_ns_custom_package() (Weiming
     Shi)

   - Update ACPICA version to 20260408 (Saket Dumbre)

   - Add cpuidle driver check in acpi_processor_register_idle_driver()
     to avoid evaluating _CST unnecessarily (Tony W Wang-oc)

   - Suppress UBSAN warning caused by field misuse during PCC-based
     register access in the ACPI CPPC library (Jeremy Linton)

   - Add support for CPPC v4 to the ACPI CPPC library (Sumit Gupta)

   - Update the ACPI device enumeration code to honor _DEP for ACPI0016
     PCI/CXL host bridges and make the ACPI PCI root driver clear _DEP
     dependencies for PCI roots that have become operational (Chen Pei)"

* tag 'acpi-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/rafael/linux-pm: (74 commits)
  ACPI: processor: Add cpuidle driver check in acpi_processor_register_idle_driver()
  ACPI: IPMI: Fix message kref handling on dead device
  ACPI: CPPC: Suppress UBSAN warning caused by field misuse
  ACPI: scan: Honor _DEP for Intel CVS devices
  ACPI: NFIT: core: Fix possible deadlock and missing notifications
  ACPI: NFIT: core: Eliminate redundant local variable
  ACPI: NFIT: core: Fix acpi_nfit_init() error cleanup
  ACPI: NFIT: core: Fix possible NULL pointer dereference
  ACPI: bus: Clean up devm_acpi_install_notify_handler()
  ACPI: button: Switch over to devres-based resource management
  ACPI: button: Reorganize installing and removing event handlers
  ACPI: button: Use string literals for generating netlink messages
  ACPI: button: Clean up adding and removing lid procfs interface
  ACPI: button: Merge two switch () statements in acpi_button_probe()
  ACPI: button: Drop redundant variable from acpi_button_probe()
  ACPI: button: Rework device verification during probe
  ACPI: CPPC: Add support for CPPC v4
  ACPI: PAD: Use sysfs_emit() in idlecpus_show()
  ACPI: scan: Honor _DEP for ACPI0016 PCI/CXL host bridge
  ACPI: PCI: Clear _DEP dependencies after PCI root bridge attach
  ...

24 files changed, 41 insertions, 29 deletions

diff --git a/include/acpi/acbuffer.h b/include/acpi/acbuffer.h
index cbc9aeabcd99..7823df1c3894 100644
--- a/include/acpi/acbuffer.h
+++ b/include/acpi/acbuffer.h
@@ -3,7 +3,7 @@
  *
  * Name: acbuffer.h - Support for buffers returned by ACPI predefined names
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/acconfig.h b/include/acpi/acconfig.h
index 521d4bfa6ef0..6bce050f0421 100644
--- a/include/acpi/acconfig.h
+++ b/include/acpi/acconfig.h
@@ -3,7 +3,7 @@
  *
  * Name: acconfig.h - Global configuration constants
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/acexcep.h b/include/acpi/acexcep.h
index a2db36d18419..d7b22c56c131 100644
--- a/include/acpi/acexcep.h
+++ b/include/acpi/acexcep.h
@@ -3,7 +3,7 @@
  *
  * Name: acexcep.h - Exception codes returned by the ACPI subsystem
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/acnames.h b/include/acpi/acnames.h
index cb6a4dcc4e8e..714d8f265f8a 100644
--- a/include/acpi/acnames.h
+++ b/include/acpi/acnames.h
@@ -3,7 +3,7 @@
  *
  * Name: acnames.h - Global names and strings
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/acoutput.h b/include/acpi/acoutput.h
index 3584f33e352c..a8d846077727 100644
--- a/include/acpi/acoutput.h
+++ b/include/acpi/acoutput.h
@@ -3,7 +3,7 @@
  *
  * Name: acoutput.h -- debug output
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/acpi.h b/include/acpi/acpi.h
index 92bf80937e5f..07e3d6e213c9 100644
--- a/include/acpi/acpi.h
+++ b/include/acpi/acpi.h
@@ -3,7 +3,7 @@
  *
  * Name: acpi.h - Master public include file used to interface to ACPICA
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index c41d9a7565cf..7e57f9698f7c 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -629,6 +629,8 @@ int acpi_dev_install_notify_handler(struct acpi_device *adev,
 void acpi_dev_remove_notify_handler(struct acpi_device *adev,
 				    u32 handler_type,
 				    acpi_notify_handler handler);
+int devm_acpi_install_notify_handler(struct device *dev, u32 handler_type,
+				     acpi_notify_handler handler, void *context);
 extern int acpi_notifier_call_chain(const char *device_class,
 				    const char *bus_id, u32 type, u32 data);
 extern int register_acpi_notifier(struct notifier_block *);
diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index 65c5737b6286..f5bf17fc4e01 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -5,7 +5,7 @@
  *                    interfaces must be implemented by OSL to interface the
  *                    ACPI components to the host operating system.
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index a4b562700151..9557462e0be8 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -3,7 +3,7 @@
  *
  * Name: acpixf.h - External interfaces to the ACPI subsystem
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
@@ -12,7 +12,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20251212
+#define ACPI_CA_VERSION                 0x20260408
 
 #include <acpi/acconfig.h>
 #include <acpi/actypes.h>
diff --git a/include/acpi/acrestyp.h b/include/acpi/acrestyp.h
index 842f932e2c2b..0e25ef65a323 100644
--- a/include/acpi/acrestyp.h
+++ b/include/acpi/acrestyp.h
@@ -3,7 +3,7 @@
  *
  * Name: acrestyp.h - Defines, types, and structures for resource descriptors
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
@@ -423,6 +423,7 @@ struct acpi_resource_i2c_serialbus {
 	ACPI_RESOURCE_SERIAL_COMMON u8 access_mode;
 	u16 slave_address;
 	u32 connection_speed;
+	u8 lvr;
 };
 
 /* Values for access_mode field above */
diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h
index 8a67d4ea6e3f..606efcb527f3 100644
--- a/include/acpi/actbl.h
+++ b/include/acpi/actbl.h
@@ -3,7 +3,7 @@
  *
  * Name: actbl.h - Basic ACPI Table Definitions
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index f72e00517eb3..d824838cb7af 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -3,7 +3,7 @@
  *
  * Name: actbl1.h - Additional ACPI table definitions
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index 5c0b55e7b3e4..baef525367b5 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -3,7 +3,7 @@
  *
  * Name: actbl2.h - ACPI Table Definitions
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
@@ -1524,7 +1524,7 @@ struct acpi_madt_generic_translator {
 
 #define ACPI_MADT_ITS_NON_COHERENT      (1)
 
-/* 16: Multiprocessor wakeup (ACPI 6.4) */
+/* 16: Multiprocessor wakeup (ACPI 6.6) */
 
 struct acpi_madt_multiproc_wakeup {
 	struct acpi_subtable_header header;
diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h
index 7ca456e88377..331ecbfdb6d9 100644
--- a/include/acpi/actbl3.h
+++ b/include/acpi/actbl3.h
@@ -3,7 +3,7 @@
  *
  * Name: actbl3.h - ACPI Table Definitions
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 8fe893d776dd..00c1eb11d59e 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -3,7 +3,7 @@
  *
  * Name: actypes.h - Common data types for the entire ACPI subsystem
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
@@ -591,9 +591,9 @@ typedef u64 acpi_integer;
 #define ACPI_STATE_D1                   (u8) 1
 #define ACPI_STATE_D2                   (u8) 2
 #define ACPI_STATE_D3_HOT               (u8) 3
-#define ACPI_STATE_D3                   (u8) 4
-#define ACPI_STATE_D3_COLD              ACPI_STATE_D3
-#define ACPI_D_STATES_MAX               ACPI_STATE_D3
+#define ACPI_STATE_D3_COLD              (u8) 4
+#define ACPI_STATE_D3                   ACPI_STATE_D3_COLD
+#define ACPI_D_STATES_MAX               ACPI_STATE_D3_COLD
 #define ACPI_D_STATE_COUNT              5
 
 #define ACPI_STATE_C0                   (u8) 0
diff --git a/include/acpi/acuuid.h b/include/acpi/acuuid.h
index b2e29da6ba0a..9ccf5bbaf80e 100644
--- a/include/acpi/acuuid.h
+++ b/include/acpi/acuuid.h
@@ -3,7 +3,7 @@
  *
  * Name: acuuid.h - ACPI-related UUID/GUID definitions
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
@@ -63,6 +63,11 @@
 #define UUID_CACHE_PROPERTIES           "6DC63E77-257E-4E78-A973-A21F2796898D"
 #define UUID_PHYSICAL_PROPERTY          "DDE4D59A-AA42-4349-B407-EA40F57D9FB7"
 
+/* Modern Standby */
+#define UUID_LPS0_MICROSOFT             "11E00D56-CE64-47CE-837B-1F898F9AA461"
+#define UUID_LPS0_INTEL                 "C4EB40A0-6CD2-11E2-BCFD-0800200C9A66"
+#define UUID_LPS0_AMD                   "E3F32452-FEBC-43CE-9039-932122D37721"
+
 /* Miscellaneous */
 
 #define UUID_PLATFORM_CAPABILITIES      "0811b06e-4a27-44f9-8d60-3cbbc22e7b48"
diff --git a/include/acpi/cppc_acpi.h b/include/acpi/cppc_acpi.h
index d1f02ceec4f9..8693890a7275 100644
--- a/include/acpi/cppc_acpi.h
+++ b/include/acpi/cppc_acpi.h
@@ -17,16 +17,18 @@
 #include <acpi/pcc.h>
 #include <acpi/processor.h>
 
-/* CPPCv2 and CPPCv3 support */
+/* CPPCv2, CPPCv3 and CPPCv4 support */
 #define CPPC_V2_REV	2
 #define CPPC_V3_REV	3
+#define CPPC_V4_REV	4
 #define CPPC_V2_NUM_ENT	21
 #define CPPC_V3_NUM_ENT	23
+#define CPPC_V4_NUM_ENT	25
 
 #define PCC_CMD_COMPLETE_MASK	(1 << 0)
 #define PCC_ERROR_MASK		(1 << 2)
 
-#define MAX_CPC_REG_ENT 21
+#define MAX_CPC_REG_ENT 23
 
 /* CPPC specific PCC commands. */
 #define	CMD_READ 0
@@ -109,6 +111,8 @@ enum cppc_regs {
 	REFERENCE_PERF,
 	LOWEST_FREQ,
 	NOMINAL_FREQ,
+	OSPM_NOMINAL_PERF,
+	RESOURCE_PRIORITY,
 };
 
 /*
diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index a11fa83955f8..1c66cfeeea35 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -3,7 +3,7 @@
  *
  * Name: acenv.h - Host and compiler configuration
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/platform/acenvex.h b/include/acpi/platform/acenvex.h
index 8ffc4e1c87cf..f7797ca6312d 100644
--- a/include/acpi/platform/acenvex.h
+++ b/include/acpi/platform/acenvex.h
@@ -3,7 +3,7 @@
  *
  * Name: acenvex.h - Extra host and compiler configuration
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/platform/acgcc.h b/include/acpi/platform/acgcc.h
index 8e4cf2f6b383..31c624568852 100644
--- a/include/acpi/platform/acgcc.h
+++ b/include/acpi/platform/acgcc.h
@@ -3,7 +3,7 @@
  *
  * Name: acgcc.h - GCC specific defines, etc.
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/platform/acgccex.h b/include/acpi/platform/acgccex.h
index 4a3c019a4d03..89cd8a66b16c 100644
--- a/include/acpi/platform/acgccex.h
+++ b/include/acpi/platform/acgccex.h
@@ -3,7 +3,7 @@
  *
  * Name: acgccex.h - Extra GCC specific defines, etc.
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index edbbc9061d1e..9b30bb9ed711 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -3,7 +3,7 @@
  *
  * Name: aclinux.h - OS specific defines, etc. for Linux
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/platform/aclinuxex.h b/include/acpi/platform/aclinuxex.h
index 73265650f46b..aeb74e2f9d4f 100644
--- a/include/acpi/platform/aclinuxex.h
+++ b/include/acpi/platform/aclinuxex.h
@@ -3,7 +3,7 @@
  *
  * Name: aclinuxex.h - Extra OS specific defines, etc. for Linux
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/
 
diff --git a/include/acpi/platform/aczephyr.h b/include/acpi/platform/aczephyr.h
index 03d9a4a39c80..b698ec117064 100644
--- a/include/acpi/platform/aczephyr.h
+++ b/include/acpi/platform/aczephyr.h
@@ -3,7 +3,7 @@
  *
  * Module Name: aczephyr.h - OS specific defines, etc.
  *
- * Copyright (C) 2000 - 2025, Intel Corp.
+ * Copyright (C) 2000 - 2026, Intel Corp.
  *
  *****************************************************************************/