Merge tag 'platform-drivers-x86-v6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Hans de Goede:

 - Microsoft Surface:
     - SSAM hot unplug support
     - Surface Pro 8 keyboard cover support
     - Tablet mode switch support for Surface Pro 8 and Surface Laptop
       Studio

 - thinkpad_acpi:
     - AMD Automatice Mode Transitions (AMT) support

 - Mellanox:
     - Vulcan chassis COMe NVSwitch management support
     - XH3000 support

 - New generic/shared Intel P2SB (Primary to Sideband) support

 - Lots of small cleanups

 - Various small bugfixes

 - Various new hardware ids / quirks additions

* tag 'platform-drivers-x86-v6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (105 commits)
  platform/x86/intel/vsec: Fix wrong type for local status variables
  platform/x86: p2sb: Move out of X86_PLATFORM_DEVICES dependency
  platform/x86: pmc_atom: Fix comment typo
  platform/surface: gpe: Add support for 13" Intel version of Surface Laptop 4
  platform/olpc: Fix uninitialized data in debugfs write
  platform/mellanox: mlxreg-lc: Fix error flow and extend verbosity
  platform/x86: pmc_atom: Match all Lex BayTrail boards with critclk_systems DMI table
  platform/x86: sony-laptop: Remove useless comparisons in sony_pic_read_possible_resource()
  tools/power/x86/intel-speed-select: Remove unneeded semicolon
  tools/power/x86/intel-speed-select: Fix off by one check
  platform/surface: tabletsw: Fix __le32 integer access
  Documentation/ABI: Add new attributes for mlxreg-io sysfs interfaces
  Documentation/ABI: mlxreg-io: Fix contact info
  platform/mellanox: mlxreg-io: Add locking for io operations
  platform/x86: mlx-platform: Add COME board revision register
  platform/x86: mlx-platform: Add support for new system XH3000
  platform/x86: mlx-platform: Introduce support for COMe NVSwitch management module for Vulcan chassis
  platform/x86: mlx-platform: Add support for systems equipped with two ASICs
  platform/x86: mlx-platform: Add cosmetic changes for alignment
  platform/x86: mlx-platform: Make activation of some drivers conditional
  ...

1 files changed, 25 insertions, 4 deletions

diff --git a/drivers/platform/surface/surface_acpi_notify.c b/drivers/platform/surface/surface_acpi_notify.c
index 7b758f8cc137..44e317970557 100644
--- a/drivers/platform/surface/surface_acpi_notify.c
+++ b/drivers/platform/surface/surface_acpi_notify.c
@@ -8,7 +8,7 @@
  * notifications sent from ACPI via the SAN interface by providing them to any
  * registered external driver.
  *
- * Copyright (C) 2019-2020 Maximilian Luz <luzmaximilian@gmail.com>
+ * Copyright (C) 2019-2022 Maximilian Luz <luzmaximilian@gmail.com>
  */
 
 #include <asm/unaligned.h>
@@ -37,6 +37,7 @@ struct san_data {
 #define to_san_data(ptr, member) \
 	container_of(ptr, struct san_data, member)
 
+static struct workqueue_struct *san_wq;
 
 /* -- dGPU notifier interface. ---------------------------------------------- */
 
@@ -356,7 +357,7 @@ static u32 san_evt_bat_nf(struct ssam_event_notifier *nf,
 
 	memcpy(&work->event, event, sizeof(struct ssam_event) + event->length);
 
-	schedule_delayed_work(&work->work, delay);
+	queue_delayed_work(san_wq, &work->work, delay);
 	return SSAM_NOTIF_HANDLED;
 }
 
@@ -861,7 +862,7 @@ static int san_remove(struct platform_device *pdev)
 	 * We have unregistered our event sources. Now we need to ensure that
 	 * all delayed works they may have spawned are run to completion.
 	 */
-	flush_scheduled_work();
+	flush_workqueue(san_wq);
 
 	return 0;
 }
@@ -881,7 +882,27 @@ static struct platform_driver surface_acpi_notify = {
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
-module_platform_driver(surface_acpi_notify);
+
+static int __init san_init(void)
+{
+	int ret;
+
+	san_wq = alloc_workqueue("san_wq", 0, 0);
+	if (!san_wq)
+		return -ENOMEM;
+	ret = platform_driver_register(&surface_acpi_notify);
+	if (ret)
+		destroy_workqueue(san_wq);
+	return ret;
+}
+module_init(san_init);
+
+static void __exit san_exit(void)
+{
+	platform_driver_unregister(&surface_acpi_notify);
+	destroy_workqueue(san_wq);
+}
+module_exit(san_exit);
 
 MODULE_AUTHOR("Maximilian Luz <luzmaximilian@gmail.com>");
 MODULE_DESCRIPTION("Surface ACPI Notify driver for Surface System Aggregator Module");