Merge tag 'acpi-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These add Microsoft fan extensions support to the ACPI fan driver, fix
  a bug in ACPICA, update other ACPI drivers (processor, time and alarm
  device), update ACPI power management code and ACPI device properties
  management, and fix an ACPI utility:

   - Avoid walking the ACPI namespace in the AML interpreter if the
     starting node cannot be determined (Cryolitia PukNgae)

   - Use min() instead of min_t() in the ACPI device properties handling
     code to avoid discarding significant bits (David Laight)

   - Fix potential fwnode refcount leak in
     acpi_fwnode_graph_parse_endpoint() that may prevent the parent
     fwnode from being released (Haotian Zhang)

   - Rework acpi_graph_get_next_endpoint() to use ACPI functions only,
     remove unnecessary conditionals from it to make it easier to
     follow, and make acpi_get_next_subnode() static (Sakari Ailus)

   - Drop unused function acpi_get_lps0_constraint(), make some
     Low-Power S0 callback functions for suspend-to-idle static, and
     rearrange the code retrieving Low-Power S0 constraints so it only
     runs when the constraints are actually used (Rafael Wysocki)

   - Drop redundant locking from the ACPI battery driver (Rafael
     Wysocki)

   - Improve runtime PM in the ACPI time and alarm device (TAD) driver
     using guard macros and rearrange code related to runtime PM in
     acpi_tad_remove() (Rafael Wysocki)

   - Add support for Microsoft fan extensions to the ACPI fan driver
     along with notification support and work around a 64-bit firmware
     bug in that driver (Armin Wolf)

   - Use ACPI_FREE() to free ACPI buffer in the ACPI DPTF code
     (Kaushlendra Kumar)

   - Fix a memory leak and a resource leak in the ACPI pfrut utility
     (Malaya Kumar Rout)

   - Replace `core::mem::zeroed` with `pin_init::zeroed` in the ACPI
     Rust code (Siyuan Huang)

   - Update the ACPI code to use the new style of allocating workqueues
     and new global workqueues (Marco Crivellari)

   - Fix two spelling mistakes in the ACPI code (Chu Guangqing)

   - Fix ISAPNP to generate uevents to auto-load modules (René Rebe)

   - Relocate the state flags initialization in the ACPI processor idle
     driver and drop redundant C-state count checks from it (Huisong Li)

   - Fix map_x2apic_id() in the ACPI processor core driver for
     amd-pstate on am4 (René Rebe)"

* tag 'acpi-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (30 commits)
  ACPI: PM: Fix a spelling mistake
  ACPI: LPSS: Fix a spelling mistake
  ACPI: processor_core: fix map_x2apic_id for amd-pstate on am4
  ACPICA: Avoid walking the Namespace if start_node is NULL
  ACPI: tools: pfrut: fix memory leak and resource leak in pfrut.c
  ACPI: property: use min() instead of min_t()
  PNP: Fix ISAPNP to generate uevents to auto-load modules
  ACPI: property: Fix fwnode refcount leak in acpi_fwnode_graph_parse_endpoint()
  ACPI: DPTF: Use ACPI_FREE() for ACPI buffer deallocation
  ACPI: processor: idle: Drop redundant C-state count checks
  ACPI: thermal: Add WQ_PERCPU to alloc_workqueue() users
  ACPI: OSL: Add WQ_PERCPU to alloc_workqueue() users
  ACPI: EC: Add WQ_PERCPU to alloc_workqueue() users
  ACPI: OSL: replace use of system_wq with system_percpu_wq
  ACPI: scan: replace use of system_unbound_wq with system_dfl_wq
  ACPI: fan: Add support for Microsoft fan extensions
  ACPI: fan: Add hwmon notification support
  ACPI: fan: Add basic notification support
  ACPI: TAD: Improve runtime PM using guard macros
  ACPI: TAD: Rearrange runtime PM operations in acpi_tad_remove()
  ...

1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c
index 7de7aabb275e..05e9840bc3d4 100644
--- a/drivers/pnp/driver.c
+++ b/drivers/pnp/driver.c
@@ -150,6 +150,24 @@ static void pnp_device_shutdown(struct device *dev)
 		drv->shutdown(pnp_dev);
 }
 
+static int pnp_uevent(const struct device *dev, struct kobj_uevent_env *env)
+{
+	struct pnp_id *pos;
+	const struct pnp_dev *pnp_dev = to_pnp_dev(dev);
+
+	if (!dev)
+		return -ENODEV;
+
+	pos = pnp_dev->id;
+	while (pos) {
+		if (add_uevent_var(env, "MODALIAS=pnp:d%s", pos->id))
+			return -ENOMEM;
+		pos = pos->next;
+	}
+
+	return 0;
+}
+
 static int pnp_bus_match(struct device *dev, const struct device_driver *drv)
 {
 	struct pnp_dev *pnp_dev = to_pnp_dev(dev);
@@ -259,6 +277,7 @@ static const struct dev_pm_ops pnp_bus_dev_pm_ops = {
 const struct bus_type pnp_bus_type = {
 	.name    = "pnp",
 	.match   = pnp_bus_match,
+	.uevent  = pnp_uevent,
 	.probe   = pnp_device_probe,
 	.remove  = pnp_device_remove,
 	.shutdown = pnp_device_shutdown,