Merge tag 'platform-drivers-x86-v5.1-1' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver updates from Darren Hart:

 - use MODULE_DEVICE_TABLE across several wmi drivers, keeping
   wmi_device_id and MODULE_ALIAS() declarations in sync

 - add several Ideapad models to the no_hw_rfkill list

 - add support for new Mellanox platforms, including new fan and LED
   functionality

 - address Dell keyboard backlight change event and power button release
   issues

 - update dell_rbu to use appropriate memory allocation mechanisms

 - several small fixes and Ice Lake support for intel_pmc_core

 - fix a suspend regression for Cherry Trail based devices in
   intel_int0002_vgpio

 - a few other routine fixes

* tag 'platform-drivers-x86-v5.1-1' of git://git.infradead.org/linux-platform-drivers-x86: (50 commits)
  MAINTAINERS: Include mlxreg.h in Mellanox Platform Driver files
  platform/x86: ideapad-laptop: Add S130-14IGM to no_hw_rfkill list
  platform/x86: mlx-platform: Fix access mode for fan_dir attribute
  platform/x86: mlx-platform: Add UID LED for the next generation systems
  platform/x86: mlx-platform: Add extra CPLD for next generation systems
  platform/x86: wmi-bmof: use MODULE_DEVICE_TABLE() instead of MODULE_ALIAS()
  platform/x86: intel-wmi-thunderbolt: use MODULE_DEVICE_TABLE() instead of MODULE_ALIAS()
  platform/x86: huawei-wmi: use MODULE_DEVICE_TABLE() instead of MODULE_ALIAS()
  platform/x86: dell-wmi: use MODULE_DEVICE_TABLE() instead of MODULE_ALIAS()
  platform/x86: dell-wmi-descriptor: use MODULE_DEVICE_TABLE() instead of MODULE_ALIAS()
  platform/x86: dell-smbios-wmi: use MODULE_DEVICE_TABLE() instead of MODULE_ALIAS()
  platform/x86: wmi: add WMI support to MODULE_DEVICE_TABLE()
  platform/x86: wmi: move struct wmi_device_id to mod_devicetable.h
  modpost: file2alias: define size of alias
  platform/x86: touchscreen_dmi: Add info for the CHUWI Hi10 Air tablet
  platform/x86: ideapad-laptop: Add Ideapad 530S-14ARR to no_hw_rfkill list
  platform/x86: ideapad-laptop: Add Yoga C930 to no_hw_rfkill_list
  platform/x86: intel_pmc_core: Quirk to ignore XTAL shutdown
  platform/x86: intel_pmc_core: Add Package cstates residency info
  platform/x86: intel_pmc_core: Add ICL platform support
  ...

Documentation/ABI/stable/sysfs-driver-mlxreg-io

@@ -21,7 +21,19 @@ Description:	These files show with which CPLD versions have been burned
 		The files are read only.
 
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/
-							cpld3_version
+							fan_dir
+
+Date:		December 2018
+KernelVersion:	5.0
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	This file shows the system fans direction:
+		forward direction - relevant bit is set 0;
+		reversed direction - relevant bit is set 1.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/
+							jtag_enable
 
 Date:		November 2018
 KernelVersion:	5.0

MAINTAINERS

@@ -9900,6 +9900,7 @@ M:	Vadim Pasternak <vadimp@mellanox.com>
 L:	platform-driver-x86@vger.kernel.org
 S:	Supported
 F:	drivers/platform/mellanox/
+F:	include/linux/platform_data/mlxreg.h
 
 MELLANOX MLX4 core VPI driver
 M:	Tariq Toukan <tariqt@mellanox.com>

drivers/acpi/scan.c

@@ -1545,6 +1545,7 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
 	 */
 	static const struct acpi_device_id i2c_multi_instantiate_ids[] = {
 		{"BSG1160", },
+		{"BSG2150", },
 		{"INT33FE", },
 		{"INT3515", },
 		{}

drivers/leds/leds-mlxreg.c

@@ -22,6 +22,7 @@
 #define MLXREG_LED_AMBER_SOLID		0x09 /* Solid amber */
 #define MLXREG_LED_BLINK_3HZ		167 /* ~167 msec off/on - HW support */
 #define MLXREG_LED_BLINK_6HZ		83 /* ~83 msec off/on - HW support */
+#define MLXREG_LED_CAPABILITY_CLEAR	GENMASK(31, 8) /* Clear mask */
 
 /**
  * struct mlxreg_led_data - led control data:
@@ -187,6 +188,7 @@ static int mlxreg_led_config(struct mlxreg_led_priv_data *priv)
 	struct mlxreg_led_data *led_data;
 	struct led_classdev *led_cdev;
 	enum led_brightness brightness;
+	u32 regval;
 	int i;
 	int err;
 
@@ -196,6 +198,23 @@ static int mlxreg_led_config(struct mlxreg_led_priv_data *priv)
 		if (!led_data)
 			return -ENOMEM;
 
+		if (data->capability) {
+			err = regmap_read(led_pdata->regmap, data->capability,
+					  &regval);
+			if (err) {
+				dev_err(&priv->pdev->dev, "Failed to query capability register\n");
+				return err;
+			}
+			if (!(regval & data->bit))
+				continue;
+			/*
+			 * Field "bit" can contain one capability bit in 0 byte
+			 * and offset bit in 1-3 bytes. Clear capability bit and
+			 * keep only offset bit.
+			 */
+			data->bit &= MLXREG_LED_CAPABILITY_CLEAR;
+		}
+
 		led_cdev = &led_data->led_cdev;
 		led_data->data_parent = priv;
 		if (strstr(data->label, "red") ||

drivers/platform/mellanox/mlxreg-hotplug.c

@@ -248,7 +248,8 @@ mlxreg_hotplug_work_helper(struct mlxreg_hotplug_priv_data *priv,
 			   struct mlxreg_core_item *item)
 {
 	struct mlxreg_core_data *data;
-	u32 asserted, regval, bit;
+	unsigned long asserted;
+	u32 regval, bit;
 	int ret;
 
 	/*
@@ -281,7 +282,7 @@ mlxreg_hotplug_work_helper(struct mlxreg_hotplug_priv_data *priv,
 	asserted = item->cache ^ regval;
 	item->cache = regval;
 
-	for_each_set_bit(bit, (unsigned long *)&asserted, 8) {
+	for_each_set_bit(bit, &asserted, 8) {
 		data = item->data + bit;
 		if (regval & BIT(bit)) {
 			if (item->inversed)
@@ -495,7 +496,9 @@ static int mlxreg_hotplug_set_irq(struct mlxreg_hotplug_priv_data *priv)
 {
 	struct mlxreg_core_hotplug_platform_data *pdata;
 	struct mlxreg_core_item *item;
-	int i, ret;
+	struct mlxreg_core_data *data;
+	u32 regval;
+	int i, j, ret;
 
 	pdata = dev_get_platdata(&priv->pdev->dev);
 	item = pdata->items;
@@ -507,6 +510,25 @@ static int mlxreg_hotplug_set_irq(struct mlxreg_hotplug_priv_data *priv)
 		if (ret)
 			goto out;
 
+		/*
+		 * Verify if hardware configuration requires to disable
+		 * interrupt capability for some of components.
+		 */
+		data = item->data;
+		for (j = 0; j < item->count; j++, data++) {
+			/* Verify if the attribute has capability register. */
+			if (data->capability) {
+				/* Read capability register. */
+				ret = regmap_read(priv->regmap,
+						  data->capability, &regval);
+				if (ret)
+					goto out;
+
+				if (!(regval & data->bit))
+					item->mask &= ~BIT(j);
+			}
+		}
+
 		/* Set group initial status as mask and unmask group event. */
 		if (item->inversed) {
 			item->cache = item->mask;

drivers/platform/x86/asus-wmi.c

@@ -2265,12 +2265,12 @@ static int asus_wmi_probe(struct platform_device *pdev)
 	int ret;
 
 	if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
-		pr_warn("Management GUID not found\n");
+		pr_warn("ASUS Management GUID not found\n");
 		return -ENODEV;
 	}
 
 	if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
-		pr_warn("Event GUID not found\n");
+		pr_warn("ASUS Event GUID not found\n");
 		return -ENODEV;
 	}
 
@@ -2320,11 +2320,6 @@ EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
 
 static int __init asus_wmi_init(void)
 {
-	if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
-		pr_info("Asus Management GUID not found\n");
-		return -ENODEV;
-	}
-
 	pr_info("ASUS WMI generic driver loaded\n");
 	return 0;
 }

drivers/platform/x86/dell-smbios-wmi.c

@@ -277,4 +277,4 @@ void exit_dell_smbios_wmi(void)
 	wmi_driver_unregister(&dell_smbios_wmi_driver);
 }
 
-MODULE_ALIAS("wmi:" DELL_WMI_SMBIOS_GUID);
+MODULE_DEVICE_TABLE(wmi, dell_smbios_wmi_id_table);

drivers/platform/x86/dell-wmi-descriptor.c

@@ -207,7 +207,7 @@ static struct wmi_driver dell_wmi_descriptor_driver = {
 
 module_wmi_driver(dell_wmi_descriptor_driver);
 
-MODULE_ALIAS("wmi:" DELL_WMI_DESCRIPTOR_GUID);
+MODULE_DEVICE_TABLE(wmi, dell_wmi_descriptor_id_table);
 MODULE_AUTHOR("Mario Limonciello <mario.limonciello@dell.com>");
 MODULE_DESCRIPTION("Dell WMI descriptor driver");
 MODULE_LICENSE("GPL");

drivers/platform/x86/dell-wmi.c

@@ -50,8 +50,6 @@ MODULE_LICENSE("GPL");
 
 static bool wmi_requires_smbios_request;
 
-MODULE_ALIAS("wmi:"DELL_EVENT_GUID);
-
 struct dell_wmi_priv {
 	struct input_dev *input_dev;
 	u32 interface_version;
@@ -267,6 +265,9 @@ static const struct key_entry dell_wmi_keymap_type_0010[] = {
 	/* Fn-lock switched to multimedia keys */
 	{ KE_IGNORE, 0x1, { KEY_RESERVED } },
 
+	/* Keyboard backlight change notification */
+	{ KE_IGNORE, 0x3f, { KEY_RESERVED } },
+
 	/* Mic mute */
 	{ KE_KEY, 0x150, { KEY_MICMUTE } },
 
@@ -738,3 +739,5 @@ static void __exit dell_wmi_exit(void)
 	wmi_driver_unregister(&dell_wmi_driver);
 }
 module_exit(dell_wmi_exit);
+
+MODULE_DEVICE_TABLE(wmi, dell_wmi_id_table);

drivers/platform/x86/dell_rbu.c

@@ -59,7 +59,6 @@ static struct _rbu_data {
 	unsigned long image_update_buffer_size;
 	unsigned long bios_image_size;
 	int image_update_ordernum;
-	int dma_alloc;
 	spinlock_t lock;
 	unsigned long packet_read_count;
 	unsigned long num_packets;
@@ -89,7 +88,6 @@ static struct packet_data packet_data_head;
 
 static struct platform_device *rbu_device;
 static int context;
-static dma_addr_t dell_rbu_dmaaddr;
 
 static void init_packet_head(void)
 {
@@ -380,10 +378,6 @@ static void img_update_free(void)
 	 */
 	memset(rbu_data.image_update_buffer, 0,
 		rbu_data.image_update_buffer_size);
-	if (rbu_data.dma_alloc == 1)
-		dma_free_coherent(NULL, rbu_data.bios_image_size,
-			rbu_data.image_update_buffer, dell_rbu_dmaaddr);
-	else
 	free_pages((unsigned long) rbu_data.image_update_buffer,
 		rbu_data.image_update_ordernum);
 
@@ -394,7 +388,6 @@ static void img_update_free(void)
 	rbu_data.image_update_buffer = NULL;
 	rbu_data.image_update_buffer_size = 0;
 	rbu_data.bios_image_size = 0;
-	rbu_data.dma_alloc = 0;
 }
 
 /*
@@ -410,10 +403,8 @@ static void img_update_free(void)
 static int img_update_realloc(unsigned long size)
 {
 	unsigned char *image_update_buffer = NULL;
-	unsigned long rc;
 	unsigned long img_buf_phys_addr;
 	int ordernum;
-	int dma_alloc = 0;
 
 	/*
 	 * check if the buffer of sufficient size has been
@@ -444,36 +435,23 @@ static int img_update_realloc(unsigned long size)
 
 	ordernum = get_order(size);
 	image_update_buffer =
-		(unsigned char *) __get_free_pages(GFP_KERNEL, ordernum);
-
-	img_buf_phys_addr =
-		(unsigned long) virt_to_phys(image_update_buffer);
-
-	if (img_buf_phys_addr > BIOS_SCAN_LIMIT) {
-		free_pages((unsigned long) image_update_buffer, ordernum);
-		ordernum = -1;
-		image_update_buffer = dma_alloc_coherent(NULL, size,
-			&dell_rbu_dmaaddr, GFP_KERNEL);
-		dma_alloc = 1;
+		(unsigned char *)__get_free_pages(GFP_DMA32, ordernum);
+	spin_lock(&rbu_data.lock);
+	if (!image_update_buffer) {
+		pr_debug("Not enough memory for image update:"
+			"size = %ld\n", size);
+		return -ENOMEM;
 	}
 
-	spin_lock(&rbu_data.lock);
+	img_buf_phys_addr = (unsigned long)virt_to_phys(image_update_buffer);
+	if (WARN_ON_ONCE(img_buf_phys_addr > BIOS_SCAN_LIMIT))
+		return -EINVAL; /* can't happen per definition */
 
-	if (image_update_buffer != NULL) {
 	rbu_data.image_update_buffer = image_update_buffer;
 	rbu_data.image_update_buffer_size = size;
-		rbu_data.bios_image_size =
-			rbu_data.image_update_buffer_size;
+	rbu_data.bios_image_size = rbu_data.image_update_buffer_size;
 	rbu_data.image_update_ordernum = ordernum;
-		rbu_data.dma_alloc = dma_alloc;
-		rc = 0;
-	} else {
-		pr_debug("Not enough memory for image update:"
-			"size = %ld\n", size);
-		rc = -ENOMEM;
-	}
-
-	return rc;
+	return 0;
 }
 
 static ssize_t read_packet_data(char *buffer, loff_t pos, size_t count)

drivers/platform/x86/huawei-wmi.c

@@ -201,8 +201,7 @@ static struct wmi_driver huawei_wmi_driver = {
 
 module_wmi_driver(huawei_wmi_driver);
 
-MODULE_ALIAS("wmi:"WMI0_EVENT_GUID);
-MODULE_ALIAS("wmi:"AMW0_EVENT_GUID);
+MODULE_DEVICE_TABLE(wmi, huawei_wmi_id_table);
 MODULE_AUTHOR("Ayman Bagabas <ayman.bagabas@gmail.com>");
 MODULE_DESCRIPTION("Huawei WMI hotkeys");
 MODULE_LICENSE("GPL v2");

drivers/platform/x86/i2c-multi-instantiate.c

@@ -159,6 +159,14 @@ static const struct i2c_inst_data bsg1160_data[]  = {
 	{}
 };
 
+static const struct i2c_inst_data bsg2150_data[]  = {
+	{ "bmc150_accel", IRQ_RESOURCE_GPIO, 0 },
+	{ "bmc150_magn" },
+	/* The resources describe a 3th client, but it is not really there. */
+	{ "bsg2150_dummy_dev" },
+	{}
+};
+
 static const struct i2c_inst_data int3515_data[]  = {
 	{ "tps6598x", IRQ_RESOURCE_APIC, 0 },
 	{ "tps6598x", IRQ_RESOURCE_APIC, 1 },
@@ -173,6 +181,7 @@ static const struct i2c_inst_data int3515_data[]  = {
  */
 static const struct acpi_device_id i2c_multi_inst_acpi_ids[] = {
 	{ "BSG1160", (unsigned long)bsg1160_data },
+	{ "BSG2150", (unsigned long)bsg2150_data },
 	{ "INT3515", (unsigned long)int3515_data },
 	{ }
 };

drivers/platform/x86/ideapad-laptop.c

@@ -989,7 +989,7 @@ static const struct dmi_system_id no_hw_rfkill_list[] = {
 		.ident = "Lenovo RESCUER R720-15IKBN",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-			DMI_MATCH(DMI_BOARD_NAME, "80WW"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo R720-15IKBN"),
 		},
 	},
 	{
@@ -1090,6 +1090,27 @@ static const struct dmi_system_id no_hw_rfkill_list[] = {
 			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 310-15ISK"),
 		},
 	},
+	{
+		.ident = "Lenovo ideapad 330-15ICH",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 330-15ICH"),
+		},
+	},
+	{
+		.ident = "Lenovo ideapad 530S-14ARR",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 530S-14ARR"),
+		},
+	},
+	{
+		.ident = "Lenovo ideapad S130-14IGM",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad S130-14IGM"),
+		},
+	},
 	{
 		.ident = "Lenovo ideapad Y700-14ISK",
 		.matches = {
@@ -1153,6 +1174,13 @@ static const struct dmi_system_id no_hw_rfkill_list[] = {
 			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Legion Y530-15ICH"),
 		},
 	},
+	{
+		.ident = "Lenovo Legion Y530-15ICH-1060",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Legion Y530-15ICH-1060"),
+		},
+	},
 	{
 		.ident = "Lenovo Legion Y720-15IKB",
 		.matches = {
@@ -1244,6 +1272,13 @@ static const struct dmi_system_id no_hw_rfkill_list[] = {
 			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 920-13IKB"),
 		},
 	},
+	{
+		.ident = "Lenovo YOGA C930-13IKB",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA C930-13IKB"),
+		},
+	},
 	{
 		.ident = "Lenovo Zhaoyang E42-80",
 		.matches = {

drivers/platform/x86/intel-hid.c

@@ -363,7 +363,7 @@ static void notify_handler(acpi_handle handle, u32 event, void *context)
 	 * the 5-button array, but still send notifies with power button
 	 * event code to this device object on power button actions.
 	 *
-	 * Report the power button press; catch and ignore the button release.
+	 * Report the power button press and release.
 	 */
 	if (!priv->array) {
 		if (event == 0xce) {
@@ -372,9 +372,12 @@ static void notify_handler(acpi_handle handle, u32 event, void *context)
 			return;
 		}
 
-		if (event == 0xcf)
+		if (event == 0xcf) {
+			input_report_key(priv->input_dev, KEY_POWER, 0);
+			input_sync(priv->input_dev);
 			return;
 		}
+	}
 
 	/* 0xC0 is for HID events, other values are for 5 button array */
 	if (event != 0xc0) {

drivers/platform/x86/intel-wmi-thunderbolt.c

@@ -88,7 +88,7 @@ static struct wmi_driver intel_wmi_thunderbolt_driver = {
 
 module_wmi_driver(intel_wmi_thunderbolt_driver);
 
-MODULE_ALIAS("wmi:" INTEL_WMI_THUNDERBOLT_GUID);
+MODULE_DEVICE_TABLE(wmi, intel_wmi_thunderbolt_id_table);
 MODULE_AUTHOR("Mario Limonciello <mario.limonciello@dell.com>");
 MODULE_DESCRIPTION("Intel WMI Thunderbolt force power driver");
 MODULE_LICENSE("GPL v2");

drivers/platform/x86/intel_int0002_vgpio.c

@@ -51,11 +51,14 @@
 #define GPE0A_STS_PORT			0x420
 #define GPE0A_EN_PORT			0x428
 
-#define ICPU(model)	{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, }
+#define BAYTRAIL			0x01
+#define CHERRYTRAIL			0x02
+
+#define ICPU(model, data) { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, data }
 
 static const struct x86_cpu_id int0002_cpu_ids[] = {
-	ICPU(INTEL_FAM6_ATOM_SILVERMONT),	/* Valleyview, Bay Trail  */
-	ICPU(INTEL_FAM6_ATOM_AIRMONT),		/* Braswell, Cherry Trail */
+	ICPU(INTEL_FAM6_ATOM_SILVERMONT, BAYTRAIL), /* Valleyview, Bay Trail  */
+	ICPU(INTEL_FAM6_ATOM_AIRMONT, CHERRYTRAIL), /* Braswell, Cherry Trail */
 	{}
 };
 
@@ -135,7 +138,7 @@ static irqreturn_t int0002_irq(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-static struct irq_chip int0002_irqchip = {
+static struct irq_chip int0002_byt_irqchip = {
 	.name			= DRV_NAME,
 	.irq_ack		= int0002_irq_ack,
 	.irq_mask		= int0002_irq_mask,
@@ -143,10 +146,22 @@ static struct irq_chip int0002_irqchip = {
 	.irq_set_wake		= int0002_irq_set_wake,
 };
 
+static struct irq_chip int0002_cht_irqchip = {
+	.name			= DRV_NAME,
+	.irq_ack		= int0002_irq_ack,
+	.irq_mask		= int0002_irq_mask,
+	.irq_unmask		= int0002_irq_unmask,
+	/*
+	 * No set_wake, on CHT the IRQ is typically shared with the ACPI SCI
+	 * and we don't want to mess with the ACPI SCI irq settings.
+	 */
+};
+
 static int int0002_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	const struct x86_cpu_id *cpu_id;
+	struct irq_chip *irq_chip;
 	struct gpio_chip *chip;
 	int irq, ret;
 
@@ -195,14 +210,19 @@ static int int0002_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	ret = gpiochip_irqchip_add(chip, &int0002_irqchip, 0, handle_edge_irq,
+	if (cpu_id->driver_data == BAYTRAIL)
+		irq_chip = &int0002_byt_irqchip;
+	else
+		irq_chip = &int0002_cht_irqchip;
+
+	ret = gpiochip_irqchip_add(chip, irq_chip, 0, handle_edge_irq,
 				   IRQ_TYPE_NONE);
 	if (ret) {
 		dev_err(dev, "Error adding irqchip: %d\n", ret);
 		return ret;
 	}
 
-	gpiochip_set_chained_irqchip(chip, &int0002_irqchip, irq, NULL);
+	gpiochip_set_chained_irqchip(chip, irq_chip, irq, NULL);
 
 	return 0;
 }

drivers/platform/x86/intel_pmc_core.c

@@ -15,6 +15,7 @@
 #include <linux/bitfield.h>
 #include <linux/debugfs.h>
 #include <linux/delay.h>
+#include <linux/dmi.h>
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/pci.h>
@@ -22,14 +23,24 @@
 
 #include <asm/cpu_device_id.h>
 #include <asm/intel-family.h>
+#include <asm/msr.h>
 
 #include "intel_pmc_core.h"
 
-#define ICPU(model, data) \
-	{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_MWAIT, (kernel_ulong_t)data }
-
 static struct pmc_dev pmc;
 
+/* PKGC MSRs are common across Intel Core SoCs */
+static const struct pmc_bit_map msr_map[] = {
+	{"Package C2",                  MSR_PKG_C2_RESIDENCY},
+	{"Package C3",                  MSR_PKG_C3_RESIDENCY},
+	{"Package C6",                  MSR_PKG_C6_RESIDENCY},
+	{"Package C7",                  MSR_PKG_C7_RESIDENCY},
+	{"Package C8",                  MSR_PKG_C8_RESIDENCY},
+	{"Package C9",                  MSR_PKG_C9_RESIDENCY},
+	{"Package C10",                 MSR_PKG_C10_RESIDENCY},
+	{}
+};
+
 static const struct pmc_bit_map spt_pll_map[] = {
 	{"MIPI PLL",			SPT_PMC_BIT_MPHY_CMN_LANE0},
 	{"GEN2 USB2PCIE2 PLL",		SPT_PMC_BIT_MPHY_CMN_LANE1},
@@ -108,6 +119,7 @@ static const struct pmc_bit_map spt_ltr_show_map[] = {
 	{"SATA",		SPT_PMC_LTR_SATA},
 	{"GIGABIT_ETHERNET",	SPT_PMC_LTR_GBE},
 	{"XHCI",		SPT_PMC_LTR_XHCI},
+	{"Reserved",		SPT_PMC_LTR_RESERVED},
 	{"ME",			SPT_PMC_LTR_ME},
 	/* EVA is Enterprise Value Add, doesn't really exist on PCH */
 	{"EVA",			SPT_PMC_LTR_EVA},
@@ -131,6 +143,7 @@ static const struct pmc_reg_map spt_reg_map = {
 	.mphy_sts = spt_mphy_map,
 	.pll_sts = spt_pll_map,
 	.ltr_show_sts = spt_ltr_show_map,
+	.msr_sts = msr_map,
 	.slp_s0_offset = SPT_PMC_SLP_S0_RES_COUNTER_OFFSET,
 	.ltr_ignore_offset = SPT_PMC_LTR_IGNORE_OFFSET,
 	.regmap_length = SPT_PMC_MMIO_REG_LEN,
@@ -139,6 +152,7 @@ static const struct pmc_reg_map spt_reg_map = {
 	.pm_cfg_offset = SPT_PMC_PM_CFG_OFFSET,
 	.pm_read_disable_bit = SPT_PMC_READ_DISABLE_BIT,
 	.ltr_ignore_max = SPT_NUM_IP_IGN_ALLOWED,
+	.pm_vric1_offset = SPT_PMC_VRIC1_OFFSET,
 };
 
 /* Cannonlake: PGD PFET Enable Ack Status Register(s) bitmap */
@@ -168,25 +182,26 @@ static const struct pmc_bit_map cnp_pfear_map[] = {
 	{"SDX",                 BIT(4)},
 	{"SPE",                 BIT(5)},
 	{"Fuse",                BIT(6)},
-	{"Res_23",              BIT(7)},
+	/* Reserved for Cannonlake but valid for Icelake */
+	{"SBR8",		BIT(7)},
 
 	{"CSME_FSC",            BIT(0)},
 	{"USB3_OTG",            BIT(1)},
 	{"EXI",                 BIT(2)},
 	{"CSE",                 BIT(3)},
-	{"csme_kvm",            BIT(4)},
-	{"csme_pmt",            BIT(5)},
-	{"csme_clink",          BIT(6)},
-	{"csme_ptio",           BIT(7)},
-
-	{"csme_usbr",           BIT(0)},
-	{"csme_susram",         BIT(1)},
-	{"csme_smt1",           BIT(2)},
+	{"CSME_KVM",            BIT(4)},
+	{"CSME_PMT",            BIT(5)},
+	{"CSME_CLINK",          BIT(6)},
+	{"CSME_PTIO",           BIT(7)},
+
+	{"CSME_USBR",           BIT(0)},
+	{"CSME_SUSRAM",         BIT(1)},
+	{"CSME_SMT1",           BIT(2)},
 	{"CSME_SMT4",           BIT(3)},
-	{"csme_sms2",           BIT(4)},
-	{"csme_sms1",           BIT(5)},
-	{"csme_rtc",            BIT(6)},
-	{"csme_psf",            BIT(7)},
+	{"CSME_SMS2",           BIT(4)},
+	{"CSME_SMS1",           BIT(5)},
+	{"CSME_RTC",            BIT(6)},
+	{"CSME_PSF",            BIT(7)},
 
 	{"SBR0",                BIT(0)},
 	{"SBR1",                BIT(1)},
@@ -203,7 +218,7 @@ static const struct pmc_bit_map cnp_pfear_map[] = {
 	{"CNVI",                BIT(3)},
 	{"UFS0",                BIT(4)},
 	{"EMMC",                BIT(5)},
-	{"Res_6",               BIT(6)},
+	{"SPF",			BIT(6)},
 	{"SBR6",                BIT(7)},
 
 	{"SBR7",                BIT(0)},
@@ -211,6 +226,20 @@ static const struct pmc_bit_map cnp_pfear_map[] = {
 	{"HDA_PGD4",            BIT(2)},
 	{"HDA_PGD5",            BIT(3)},
 	{"HDA_PGD6",            BIT(4)},
+	/* Reserved for Cannonlake but valid for Icelake */
+	{"PSF6",		BIT(5)},
+	{"PSF7",		BIT(6)},
+	{"PSF8",		BIT(7)},
+
+	/* Icelake generation onwards only */
+	{"RES_65",		BIT(0)},
+	{"RES_66",		BIT(1)},
+	{"RES_67",		BIT(2)},
+	{"TAM",			BIT(3)},
+	{"GBETSN",		BIT(4)},
+	{"TBTLSX",		BIT(5)},
+	{"RES_71",		BIT(6)},
+	{"RES_72",		BIT(7)},
 	{}
 };
 
@@ -276,6 +305,7 @@ static const struct pmc_bit_map cnp_ltr_show_map[] = {
 	{"SATA",		CNP_PMC_LTR_SATA},
 	{"GIGABIT_ETHERNET",	CNP_PMC_LTR_GBE},
 	{"XHCI",		CNP_PMC_LTR_XHCI},
+	{"Reserved",		CNP_PMC_LTR_RESERVED},
 	{"ME",			CNP_PMC_LTR_ME},
 	/* EVA is Enterprise Value Add, doesn't really exist on PCH */
 	{"EVA",			CNP_PMC_LTR_EVA},
@@ -291,6 +321,8 @@ static const struct pmc_bit_map cnp_ltr_show_map[] = {
 	{"ISH",			CNP_PMC_LTR_ISH},
 	{"UFSX2",		CNP_PMC_LTR_UFSX2},
 	{"EMMC",		CNP_PMC_LTR_EMMC},
+	/* Reserved for Cannonlake but valid for Icelake */
+	{"WIGIG",		ICL_PMC_LTR_WIGIG},
 	/* Below two cannot be used for LTR_IGNORE */
 	{"CURRENT_PLATFORM",	CNP_PMC_LTR_CUR_PLT},
 	{"AGGREGATED_SYSTEM",	CNP_PMC_LTR_CUR_ASLT},
@@ -302,6 +334,7 @@ static const struct pmc_reg_map cnp_reg_map = {
 	.slp_s0_offset = CNP_PMC_SLP_S0_RES_COUNTER_OFFSET,
 	.slps0_dbg_maps = cnp_slps0_dbg_maps,
 	.ltr_show_sts = cnp_ltr_show_map,
+	.msr_sts = msr_map,
 	.slps0_dbg_offset = CNP_PMC_SLPS0_DBG_OFFSET,
 	.ltr_ignore_offset = CNP_PMC_LTR_IGNORE_OFFSET,
 	.regmap_length = CNP_PMC_MMIO_REG_LEN,
@@ -312,6 +345,22 @@ static const struct pmc_reg_map cnp_reg_map = {
 	.ltr_ignore_max = CNP_NUM_IP_IGN_ALLOWED,
 };
 
+static const struct pmc_reg_map icl_reg_map = {
+	.pfear_sts = cnp_pfear_map,
+	.slp_s0_offset = CNP_PMC_SLP_S0_RES_COUNTER_OFFSET,
+	.slps0_dbg_maps = cnp_slps0_dbg_maps,
+	.ltr_show_sts = cnp_ltr_show_map,
+	.msr_sts = msr_map,
+	.slps0_dbg_offset = CNP_PMC_SLPS0_DBG_OFFSET,
+	.ltr_ignore_offset = CNP_PMC_LTR_IGNORE_OFFSET,
+	.regmap_length = CNP_PMC_MMIO_REG_LEN,
+	.ppfear0_offset = CNP_PMC_HOST_PPFEAR0A,
+	.ppfear_buckets = ICL_PPFEAR_NUM_ENTRIES,
+	.pm_cfg_offset = CNP_PMC_PM_CFG_OFFSET,
+	.pm_read_disable_bit = CNP_PMC_READ_DISABLE_BIT,
+	.ltr_ignore_max = ICL_NUM_IP_IGN_ALLOWED,
+};
+
 static inline u8 pmc_core_reg_read_byte(struct pmc_dev *pmcdev, int offset)
 {
 	return readb(pmcdev->regbase + offset);
@@ -328,9 +377,9 @@ static inline void pmc_core_reg_write(struct pmc_dev *pmcdev, int
 	writel(val, pmcdev->regbase + reg_offset);
 }
 
-static inline u32 pmc_core_adjust_slp_s0_step(u32 value)
+static inline u64 pmc_core_adjust_slp_s0_step(u32 value)
 {
-	return value * SPT_PMC_SLP_S0_RES_COUNTER_STEP;
+	return (u64)value * SPT_PMC_SLP_S0_RES_COUNTER_STEP;
 }
 
 static int pmc_core_dev_state_get(void *data, u64 *val)
@@ -380,7 +429,8 @@ static int pmc_core_ppfear_show(struct seq_file *s, void *unused)
 	     index < PPFEAR_MAX_NUM_ENTRIES; index++, iter++)
 		pf_regs[index] = pmc_core_reg_read_byte(pmcdev, iter);
 
-	for (index = 0; map[index].name; index++)
+	for (index = 0; map[index].name &&
+	     index < pmcdev->map->ppfear_buckets * 8; index++)
 		pmc_core_display_map(s, index, pf_regs[index / 8], map);
 
 	return 0;
@@ -677,6 +727,25 @@ static int pmc_core_ltr_show(struct seq_file *s, void *unused)
 }
 DEFINE_SHOW_ATTRIBUTE(pmc_core_ltr);
 
+static int pmc_core_pkgc_show(struct seq_file *s, void *unused)
+{
+	struct pmc_dev *pmcdev = s->private;
+	const struct pmc_bit_map *map = pmcdev->map->msr_sts;
+	u64 pcstate_count;
+	int index;
+
+	for (index = 0; map[index].name ; index++) {
+		if (rdmsrl_safe(map[index].bit_mask, &pcstate_count))
+			continue;
+
+		seq_printf(s, "%-8s : 0x%llx\n", map[index].name,
+			   pcstate_count);
+	}
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(pmc_core_pkgc);
+
 static void pmc_core_dbgfs_unregister(struct pmc_dev *pmcdev)
 {
 	debugfs_remove_recursive(pmcdev->dbgfs_dir);
@@ -701,7 +770,10 @@ static int pmc_core_dbgfs_register(struct pmc_dev *pmcdev)
 	debugfs_create_file("ltr_ignore", 0644, dir, pmcdev,
 			    &pmc_core_ltr_ignore_ops);
 
-	debugfs_create_file("ltr_show", 0644, dir, pmcdev, &pmc_core_ltr_fops);
+	debugfs_create_file("ltr_show", 0444, dir, pmcdev, &pmc_core_ltr_fops);
+
+	debugfs_create_file("package_cstate_show", 0444, dir, pmcdev,
+			    &pmc_core_pkgc_fops);
 
 	if (pmcdev->map->pll_sts)
 		debugfs_create_file("pll_status", 0444, dir, pmcdev,
@@ -735,11 +807,12 @@ static inline void pmc_core_dbgfs_unregister(struct pmc_dev *pmcdev)
 #endif /* CONFIG_DEBUG_FS */
 
 static const struct x86_cpu_id intel_pmc_core_ids[] = {
-	ICPU(INTEL_FAM6_SKYLAKE_MOBILE, &spt_reg_map),
-	ICPU(INTEL_FAM6_SKYLAKE_DESKTOP, &spt_reg_map),
-	ICPU(INTEL_FAM6_KABYLAKE_MOBILE, &spt_reg_map),
-	ICPU(INTEL_FAM6_KABYLAKE_DESKTOP, &spt_reg_map),
-	ICPU(INTEL_FAM6_CANNONLAKE_MOBILE, &cnp_reg_map),
+	INTEL_CPU_FAM6(SKYLAKE_MOBILE, spt_reg_map),
+	INTEL_CPU_FAM6(SKYLAKE_DESKTOP, spt_reg_map),
+	INTEL_CPU_FAM6(KABYLAKE_MOBILE, spt_reg_map),
+	INTEL_CPU_FAM6(KABYLAKE_DESKTOP, spt_reg_map),
+	INTEL_CPU_FAM6(CANNONLAKE_MOBILE, cnp_reg_map),
+	INTEL_CPU_FAM6(ICELAKE_MOBILE, icl_reg_map),
 	{}
 };
 
@@ -750,6 +823,37 @@ static const struct pci_device_id pmc_pci_ids[] = {
 	{ 0, },
 };
 
+/*
+ * This quirk can be used on those platforms where
+ * the platform BIOS enforces 24Mhx Crystal to shutdown
+ * before PMC can assert SLP_S0#.
+ */
+int quirk_xtal_ignore(const struct dmi_system_id *id)
+{
+	struct pmc_dev *pmcdev = &pmc;
+	u32 value;
+
+	value = pmc_core_reg_read(pmcdev, pmcdev->map->pm_vric1_offset);
+	/* 24MHz Crystal Shutdown Qualification Disable */
+	value |= SPT_PMC_VRIC1_XTALSDQDIS;
+	/* Low Voltage Mode Enable */
+	value &= ~SPT_PMC_VRIC1_SLPS0LVEN;
+	pmc_core_reg_write(pmcdev, pmcdev->map->pm_vric1_offset, value);
+	return 0;
+}
+
+static const struct dmi_system_id pmc_core_dmi_table[]  = {
+	{
+	.callback = quirk_xtal_ignore,
+	.ident = "HP Elite x2 1013 G3",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "HP"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "HP Elite x2 1013 G3"),
+		},
+	},
+	{}
+};
+
 static int __init pmc_core_probe(void)
 {
 	struct pmc_dev *pmcdev = &pmc;
@@ -768,7 +872,7 @@ static int __init pmc_core_probe(void)
 	 * Sunrisepoint PCH regmap can't be used. Use Cannonlake PCH regmap
 	 * in this case.
 	 */
-	if (!pci_dev_present(pmc_pci_ids))
+	if (pmcdev->map == &spt_reg_map && !pci_dev_present(pmc_pci_ids))
 		pmcdev->map = &cnp_reg_map;
 
 	if (lpit_read_residency_count_address(&slp_s0_addr))
@@ -791,6 +895,7 @@ static int __init pmc_core_probe(void)
 		return err;
 	}
 
+	dmi_check_system(pmc_core_dmi_table);
 	pr_info(" initialized\n");
 	return 0;
 }

drivers/platform/x86/intel_pmc_core.h

@@ -25,6 +25,7 @@
 #define SPT_PMC_MTPMC_OFFSET			0x20
 #define SPT_PMC_MFPMC_OFFSET			0x38
 #define SPT_PMC_LTR_IGNORE_OFFSET		0x30C
+#define SPT_PMC_VRIC1_OFFSET			0x31c
 #define SPT_PMC_MPHY_CORE_STS_0			0x1143
 #define SPT_PMC_MPHY_CORE_STS_1			0x1142
 #define SPT_PMC_MPHY_COM_STS_0			0x1155
@@ -32,7 +33,7 @@
 #define SPT_PMC_SLP_S0_RES_COUNTER_STEP		0x64
 #define PMC_BASE_ADDR_MASK			~(SPT_PMC_MMIO_REG_LEN - 1)
 #define MTPMC_MASK				0xffff0000
-#define PPFEAR_MAX_NUM_ENTRIES			5
+#define PPFEAR_MAX_NUM_ENTRIES			12
 #define SPT_PPFEAR_NUM_ENTRIES			5
 #define SPT_PMC_READ_DISABLE_BIT		0x16
 #define SPT_PMC_MSG_FULL_STS_BIT		0x18
@@ -46,6 +47,7 @@
 #define SPT_PMC_LTR_SATA			0x368
 #define SPT_PMC_LTR_GBE				0x36C
 #define SPT_PMC_LTR_XHCI			0x370
+#define SPT_PMC_LTR_RESERVED			0x374
 #define SPT_PMC_LTR_ME				0x378
 #define SPT_PMC_LTR_EVA				0x37C
 #define SPT_PMC_LTR_SPC				0x380
@@ -135,6 +137,9 @@ enum ppfear_regs {
 #define SPT_PMC_BIT_MPHY_CMN_LANE2		BIT(2)
 #define SPT_PMC_BIT_MPHY_CMN_LANE3		BIT(3)
 
+#define SPT_PMC_VRIC1_SLPS0LVEN			BIT(13)
+#define SPT_PMC_VRIC1_XTALSDQDIS		BIT(22)
+
 /* Cannonlake Power Management Controller register offsets */
 #define CNP_PMC_SLPS0_DBG_OFFSET		0x10B4
 #define CNP_PMC_PM_CFG_OFFSET			0x1818
@@ -156,6 +161,7 @@ enum ppfear_regs {
 #define CNP_PMC_LTR_SATA			0x1B68
 #define CNP_PMC_LTR_GBE				0x1B6C
 #define CNP_PMC_LTR_XHCI			0x1B70
+#define CNP_PMC_LTR_RESERVED			0x1B74
 #define CNP_PMC_LTR_ME				0x1B78
 #define CNP_PMC_LTR_EVA				0x1B7C
 #define CNP_PMC_LTR_SPC				0x1B80
@@ -176,6 +182,10 @@ enum ppfear_regs {
 #define LTR_REQ_SNOOP				BIT(15)
 #define LTR_REQ_NONSNOOP			BIT(31)
 
+#define ICL_PPFEAR_NUM_ENTRIES			9
+#define ICL_NUM_IP_IGN_ALLOWED			20
+#define ICL_PMC_LTR_WIGIG			0x1BFC
+
 struct pmc_bit_map {
 	const char *name;
 	u32 bit_mask;
@@ -208,6 +218,7 @@ struct pmc_reg_map {
 	const struct pmc_bit_map *pll_sts;
 	const struct pmc_bit_map **slps0_dbg_maps;
 	const struct pmc_bit_map *ltr_show_sts;
+	const struct pmc_bit_map *msr_sts;
 	const u32 slp_s0_offset;
 	const u32 ltr_ignore_offset;
 	const int regmap_length;
@@ -217,6 +228,7 @@ struct pmc_reg_map {
 	const int pm_read_disable_bit;
 	const u32 slps0_dbg_offset;
 	const u32 ltr_ignore_max;
+	const u32 pm_vric1_offset;
 };
 
 /**

drivers/platform/x86/mlx-platform.c

@@ -25,6 +25,7 @@
 #define MLXPLAT_CPLD_LPC_REG_CPLD1_VER_OFFSET	0x00
 #define MLXPLAT_CPLD_LPC_REG_CPLD2_VER_OFFSET	0x01
 #define MLXPLAT_CPLD_LPC_REG_CPLD3_VER_OFFSET	0x02
+#define MLXPLAT_CPLD_LPC_REG_CPLD4_VER_OFFSET	0x03
 #define MLXPLAT_CPLD_LPC_REG_RESET_CAUSE_OFFSET	0x1d
 #define MLXPLAT_CPLD_LPC_REG_RST_CAUSE1_OFFSET	0x1e
 #define MLXPLAT_CPLD_LPC_REG_RST_CAUSE2_OFFSET	0x1f
@@ -33,6 +34,7 @@
 #define MLXPLAT_CPLD_LPC_REG_LED3_OFFSET	0x22
 #define MLXPLAT_CPLD_LPC_REG_LED4_OFFSET	0x23
 #define MLXPLAT_CPLD_LPC_REG_LED5_OFFSET	0x24
+#define MLXPLAT_CPLD_LPC_REG_FAN_DIRECTION	0x2a
 #define MLXPLAT_CPLD_LPC_REG_GP1_OFFSET		0x30
 #define MLXPLAT_CPLD_LPC_REG_WP1_OFFSET		0x31
 #define MLXPLAT_CPLD_LPC_REG_GP2_OFFSET		0x32
@@ -67,6 +69,9 @@
 #define MLXPLAT_CPLD_LPC_REG_TACHO10_OFFSET	0xee
 #define MLXPLAT_CPLD_LPC_REG_TACHO11_OFFSET	0xef
 #define MLXPLAT_CPLD_LPC_REG_TACHO12_OFFSET	0xf0
+#define MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET	0xf5
+#define MLXPLAT_CPLD_LPC_REG_FAN_CAP2_OFFSET	0xf6
+#define MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET	0xf7
 #define MLXPLAT_CPLD_LPC_IO_RANGE		0x100
 #define MLXPLAT_CPLD_LPC_I2C_CH1_OFF		0xdb
 #define MLXPLAT_CPLD_LPC_I2C_CH2_OFF		0xda
@@ -584,36 +589,48 @@ static struct mlxreg_core_data mlxplat_mlxcpld_default_ng_fan_items_data[] = {
 		.label = "fan1",
 		.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
 		.mask = BIT(0),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(0),
 		.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
 	},
 	{
 		.label = "fan2",
 		.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
 		.mask = BIT(1),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(1),
 		.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
 	},
 	{
 		.label = "fan3",
 		.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
 		.mask = BIT(2),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(2),
 		.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
 	},
 	{
 		.label = "fan4",
 		.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
 		.mask = BIT(3),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(3),
 		.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
 	},
 	{
 		.label = "fan5",
 		.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
 		.mask = BIT(4),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(4),
 		.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
 	},
 	{
 		.label = "fan6",
 		.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
 		.mask = BIT(5),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(5),
 		.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
 	},
 };
@@ -816,61 +833,90 @@ static struct mlxreg_core_data mlxplat_mlxcpld_default_ng_led_data[] = {
 		.label = "fan1:green",
 		.reg = MLXPLAT_CPLD_LPC_REG_LED2_OFFSET,
 		.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(0),
 	},
 	{
 		.label = "fan1:orange",
 		.reg = MLXPLAT_CPLD_LPC_REG_LED2_OFFSET,
 		.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(0),
 	},
 	{
 		.label = "fan2:green",
 		.reg = MLXPLAT_CPLD_LPC_REG_LED2_OFFSET,
 		.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(1),
 	},
 	{
 		.label = "fan2:orange",
 		.reg = MLXPLAT_CPLD_LPC_REG_LED2_OFFSET,
 		.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(1),
 	},
 	{
 		.label = "fan3:green",
 		.reg = MLXPLAT_CPLD_LPC_REG_LED3_OFFSET,
 		.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(2),
 	},
 	{
 		.label = "fan3:orange",
 		.reg = MLXPLAT_CPLD_LPC_REG_LED3_OFFSET,
 		.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(2),
 	},
 	{
 		.label = "fan4:green",
 		.reg = MLXPLAT_CPLD_LPC_REG_LED3_OFFSET,
 		.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(3),
 	},
 	{
 		.label = "fan4:orange",
 		.reg = MLXPLAT_CPLD_LPC_REG_LED3_OFFSET,
 		.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(3),
 	},
 	{
 		.label = "fan5:green",
 		.reg = MLXPLAT_CPLD_LPC_REG_LED4_OFFSET,
 		.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(4),
 	},
 	{
 		.label = "fan5:orange",
 		.reg = MLXPLAT_CPLD_LPC_REG_LED4_OFFSET,
 		.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(4),
 	},
 	{
 		.label = "fan6:green",
 		.reg = MLXPLAT_CPLD_LPC_REG_LED4_OFFSET,
 		.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(5),
 	},
 	{
 		.label = "fan6:orange",
 		.reg = MLXPLAT_CPLD_LPC_REG_LED4_OFFSET,
 		.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET,
+		.bit = BIT(5),
+	},
+	{
+		.label = "uid:blue",
+		.reg = MLXPLAT_CPLD_LPC_REG_LED5_OFFSET,
+		.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
 	},
 };
 
@@ -1099,6 +1145,12 @@ static struct mlxreg_core_data mlxplat_mlxcpld_default_ng_regs_io_data[] = {
 		.bit = GENMASK(7, 0),
 		.mode = 0444,
 	},
+	{
+		.label = "cpld4_version",
+		.reg = MLXPLAT_CPLD_LPC_REG_CPLD4_VER_OFFSET,
+		.bit = GENMASK(7, 0),
+		.mode = 0444,
+	},
 	{
 		.label = "reset_long_pb",
 		.reg = MLXPLAT_CPLD_LPC_REG_RESET_CAUSE_OFFSET,
@@ -1184,6 +1236,12 @@ static struct mlxreg_core_data mlxplat_mlxcpld_default_ng_regs_io_data[] = {
 		.bit = 1,
 		.mode = 0444,
 	},
+	{
+		.label = "fan_dir",
+		.reg = MLXPLAT_CPLD_LPC_REG_FAN_DIRECTION,
+		.bit = GENMASK(7, 0),
+		.mode = 0444,
+	},
 };
 
 static struct mlxreg_core_platform_data mlxplat_default_ng_regs_io_data = {
@@ -1201,61 +1259,85 @@ static struct mlxreg_core_data mlxplat_mlxcpld_default_fan_data[] = {
 		.label = "tacho1",
 		.reg = MLXPLAT_CPLD_LPC_REG_TACHO1_OFFSET,
 		.mask = GENMASK(7, 0),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET,
+		.bit = BIT(0),
 	},
 	{
 		.label = "tacho2",
 		.reg = MLXPLAT_CPLD_LPC_REG_TACHO2_OFFSET,
 		.mask = GENMASK(7, 0),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET,
+		.bit = BIT(1),
 	},
 	{
 		.label = "tacho3",
 		.reg = MLXPLAT_CPLD_LPC_REG_TACHO3_OFFSET,
 		.mask = GENMASK(7, 0),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET,
+		.bit = BIT(2),
 	},
 	{
 		.label = "tacho4",
 		.reg = MLXPLAT_CPLD_LPC_REG_TACHO4_OFFSET,
 		.mask = GENMASK(7, 0),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET,
+		.bit = BIT(3),
 	},
 	{
 		.label = "tacho5",
 		.reg = MLXPLAT_CPLD_LPC_REG_TACHO5_OFFSET,
 		.mask = GENMASK(7, 0),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET,
+		.bit = BIT(4),
 	},
 	{
 		.label = "tacho6",
 		.reg = MLXPLAT_CPLD_LPC_REG_TACHO6_OFFSET,
 		.mask = GENMASK(7, 0),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET,
+		.bit = BIT(5),
 	},
 	{
 		.label = "tacho7",
 		.reg = MLXPLAT_CPLD_LPC_REG_TACHO7_OFFSET,
 		.mask = GENMASK(7, 0),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET,
+		.bit = BIT(6),
 	},
 	{
 		.label = "tacho8",
 		.reg = MLXPLAT_CPLD_LPC_REG_TACHO8_OFFSET,
 		.mask = GENMASK(7, 0),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET,
+		.bit = BIT(7),
 	},
 	{
 		.label = "tacho9",
 		.reg = MLXPLAT_CPLD_LPC_REG_TACHO9_OFFSET,
 		.mask = GENMASK(7, 0),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_CAP2_OFFSET,
+		.bit = BIT(0),
 	},
 	{
 		.label = "tacho10",
 		.reg = MLXPLAT_CPLD_LPC_REG_TACHO10_OFFSET,
 		.mask = GENMASK(7, 0),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_CAP2_OFFSET,
+		.bit = BIT(1),
 	},
 	{
 		.label = "tacho11",
 		.reg = MLXPLAT_CPLD_LPC_REG_TACHO11_OFFSET,
 		.mask = GENMASK(7, 0),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_CAP2_OFFSET,
+		.bit = BIT(2),
 	},
 	{
 		.label = "tacho12",
 		.reg = MLXPLAT_CPLD_LPC_REG_TACHO12_OFFSET,
 		.mask = GENMASK(7, 0),
+		.capability = MLXPLAT_CPLD_LPC_REG_FAN_CAP2_OFFSET,
+		.bit = BIT(3),
 	},
 };
 
@@ -1299,6 +1381,7 @@ static bool mlxplat_mlxcpld_readable_reg(struct device *dev, unsigned int reg)
 	case MLXPLAT_CPLD_LPC_REG_CPLD1_VER_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_CPLD2_VER_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_CPLD3_VER_OFFSET:
+	case MLXPLAT_CPLD_LPC_REG_CPLD4_VER_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_RESET_CAUSE_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_RST_CAUSE1_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_RST_CAUSE2_OFFSET:
@@ -1307,6 +1390,7 @@ static bool mlxplat_mlxcpld_readable_reg(struct device *dev, unsigned int reg)
 	case MLXPLAT_CPLD_LPC_REG_LED3_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_LED4_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_LED5_OFFSET:
+	case MLXPLAT_CPLD_LPC_REG_FAN_DIRECTION:
 	case MLXPLAT_CPLD_LPC_REG_GP1_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_WP1_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_GP2_OFFSET:
@@ -1341,6 +1425,9 @@ static bool mlxplat_mlxcpld_readable_reg(struct device *dev, unsigned int reg)
 	case MLXPLAT_CPLD_LPC_REG_TACHO11_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_TACHO12_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_PWM_CONTROL_OFFSET:
+	case MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET:
+	case MLXPLAT_CPLD_LPC_REG_FAN_CAP2_OFFSET:
+	case MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET:
 		return true;
 	}
 	return false;
@@ -1352,6 +1439,7 @@ static bool mlxplat_mlxcpld_volatile_reg(struct device *dev, unsigned int reg)
 	case MLXPLAT_CPLD_LPC_REG_CPLD1_VER_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_CPLD2_VER_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_CPLD3_VER_OFFSET:
+	case MLXPLAT_CPLD_LPC_REG_CPLD4_VER_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_RESET_CAUSE_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_RST_CAUSE1_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_RST_CAUSE2_OFFSET:
@@ -1360,6 +1448,7 @@ static bool mlxplat_mlxcpld_volatile_reg(struct device *dev, unsigned int reg)
 	case MLXPLAT_CPLD_LPC_REG_LED3_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_LED4_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_LED5_OFFSET:
+	case MLXPLAT_CPLD_LPC_REG_FAN_DIRECTION:
 	case MLXPLAT_CPLD_LPC_REG_GP1_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_GP2_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_AGGR_OFFSET:
@@ -1392,6 +1481,9 @@ static bool mlxplat_mlxcpld_volatile_reg(struct device *dev, unsigned int reg)
 	case MLXPLAT_CPLD_LPC_REG_TACHO11_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_TACHO12_OFFSET:
 	case MLXPLAT_CPLD_LPC_REG_PWM_CONTROL_OFFSET:
+	case MLXPLAT_CPLD_LPC_REG_FAN_CAP1_OFFSET:
+	case MLXPLAT_CPLD_LPC_REG_FAN_CAP2_OFFSET:
+	case MLXPLAT_CPLD_LPC_REG_FAN_DRW_CAP_OFFSET:
 		return true;
 	}
 	return false;
@@ -1613,6 +1705,13 @@ static const struct dmi_system_id mlxplat_dmi_table[] __initconst = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "MSN34"),
 		},
 	},
+	{
+		.callback = mlxplat_dmi_qmb7xx_matched,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MSN38"),
+		},
+	},
 	{
 		.callback = mlxplat_dmi_default_matched,
 		.matches = {
@@ -1643,6 +1742,12 @@ static const struct dmi_system_id mlxplat_dmi_table[] __initconst = {
 			DMI_MATCH(DMI_BOARD_NAME, "VMOD0005"),
 		},
 	},
+	{
+		.callback = mlxplat_dmi_qmb7xx_matched,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_NAME, "VMOD0007"),
+		},
+	},
 	{ }
 };
 

drivers/platform/x86/touchscreen_dmi.c

@@ -41,6 +41,20 @@ static const struct ts_dmi_data chuwi_hi8_data = {
 	.properties     = chuwi_hi8_props,
 };
 
+static const struct property_entry chuwi_hi8_air_props[] = {
+	PROPERTY_ENTRY_U32("touchscreen-size-x", 1728),
+	PROPERTY_ENTRY_U32("touchscreen-size-y", 1148),
+	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
+	PROPERTY_ENTRY_STRING("firmware-name", "gsl3676-chuwi-hi8-air.fw"),
+	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
+	{ }
+};
+
+static const struct ts_dmi_data chuwi_hi8_air_data = {
+	.acpi_name	= "MSSL1680:00",
+	.properties	= chuwi_hi8_air_props,
+};
+
 static const struct property_entry chuwi_hi8_pro_props[] = {
 	PROPERTY_ENTRY_U32("touchscreen-min-x", 6),
 	PROPERTY_ENTRY_U32("touchscreen-min-y", 3),
@@ -58,6 +72,25 @@ static const struct ts_dmi_data chuwi_hi8_pro_data = {
 	.properties	= chuwi_hi8_pro_props,
 };
 
+static const struct property_entry chuwi_hi10_air_props[] = {
+	PROPERTY_ENTRY_U32("touchscreen-size-x", 1981),
+	PROPERTY_ENTRY_U32("touchscreen-size-y", 1271),
+	PROPERTY_ENTRY_U32("touchscreen-min-x", 99),
+	PROPERTY_ENTRY_U32("touchscreen-min-y", 9),
+	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
+	PROPERTY_ENTRY_U32("touchscreen-fuzz-x", 5),
+	PROPERTY_ENTRY_U32("touchscreen-fuzz-y", 4),
+	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-chuwi-hi10-air.fw"),
+	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
+	PROPERTY_ENTRY_BOOL("silead,home-button"),
+	{ }
+};
+
+static const struct ts_dmi_data chuwi_hi10_air_data = {
+	.acpi_name	= "MSSL1680:00",
+	.properties	= chuwi_hi10_air_props,
+};
+
 static const struct property_entry chuwi_vi8_props[] = {
 	PROPERTY_ENTRY_U32("touchscreen-min-x", 4),
 	PROPERTY_ENTRY_U32("touchscreen-min-y", 6),
@@ -369,6 +402,24 @@ static const struct ts_dmi_data pov_mobii_wintab_p800w_v21_data = {
 	.properties	= pov_mobii_wintab_p800w_v21_props,
 };
 
+static const struct property_entry pov_mobii_wintab_p1006w_v10_props[] = {
+	PROPERTY_ENTRY_U32("touchscreen-min-x", 1),
+	PROPERTY_ENTRY_U32("touchscreen-min-y", 3),
+	PROPERTY_ENTRY_U32("touchscreen-size-x", 1984),
+	PROPERTY_ENTRY_U32("touchscreen-size-y", 1520),
+	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
+	PROPERTY_ENTRY_STRING("firmware-name",
+			      "gsl3692-pov-mobii-wintab-p1006w-v10.fw"),
+	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
+	PROPERTY_ENTRY_BOOL("silead,home-button"),
+	{ }
+};
+
+static const struct ts_dmi_data pov_mobii_wintab_p1006w_v10_data = {
+	.acpi_name	= "MSSL1680:00",
+	.properties	= pov_mobii_wintab_p1006w_v10_props,
+};
+
 static const struct property_entry teclast_x3_plus_props[] = {
 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1980),
 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1500),
@@ -497,6 +548,15 @@ static const struct dmi_system_id touchscreen_dmi_table[] = {
 			DMI_MATCH(DMI_BIOS_VERSION, "H1D_S806_206"),
 		},
 	},
+	{
+		/* Chuwi Hi8 Air (CWI543) */
+		.driver_data = (void *)&chuwi_hi8_air_data,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Default string"),
+			DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Hi8 Air"),
+		},
+	},
 	{
 		/* Chuwi Hi8 Pro (CWI513) */
 		.driver_data = (void *)&chuwi_hi8_pro_data,
@@ -505,6 +565,14 @@ static const struct dmi_system_id touchscreen_dmi_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "X1D3_C806N"),
 		},
 	},
+	{
+		/* Chuwi Hi10 Air */
+		.driver_data = (void *)&chuwi_hi10_air_data,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
+			DMI_MATCH(DMI_PRODUCT_SKU, "P1W6_C109D_B"),
+		},
+	},
 	{
 		/* Chuwi Vi8 (CWI506) */
 		.driver_data = (void *)&chuwi_vi8_data,
@@ -706,6 +774,17 @@ static const struct dmi_system_id touchscreen_dmi_table[] = {
 			DMI_MATCH(DMI_BIOS_DATE, "08/22/2014"),
 		},
 	},
+	{
+		/* Point of View mobii wintab p1006w (v1.0) */
+		.driver_data = (void *)&pov_mobii_wintab_p1006w_v10_data,
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Insyde"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "BayTrail"),
+			/* Note 105b is Foxcon's USB/PCI vendor id */
+			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "105B"),
+			DMI_EXACT_MATCH(DMI_BOARD_NAME, "0E57"),
+		},
+	},
 	{
 		/* Teclast X3 Plus */
 		.driver_data = (void *)&teclast_x3_plus_data,

drivers/platform/x86/wmi-bmof.c

@@ -119,7 +119,7 @@ static struct wmi_driver wmi_bmof_driver = {
 
 module_wmi_driver(wmi_bmof_driver);
 
-MODULE_ALIAS("wmi:" WMI_BMOF_GUID);
+MODULE_DEVICE_TABLE(wmi, wmi_bmof_id_table);
 MODULE_AUTHOR("Andrew Lutomirski <luto@kernel.org>");
 MODULE_DESCRIPTION("WMI embedded Binary MOF driver");
 MODULE_LICENSE("GPL");

drivers/platform/x86/wmi.c

@@ -768,7 +768,10 @@ static int wmi_dev_match(struct device *dev, struct device_driver *driver)
 	struct wmi_block *wblock = dev_to_wblock(dev);
 	const struct wmi_device_id *id = wmi_driver->id_table;
 
-	while (id->guid_string) {
+	if (id == NULL)
+		return 0;
+
+	while (*id->guid_string) {
 		uuid_le driver_guid;
 
 		if (WARN_ON(uuid_le_to_bin(id->guid_string, &driver_guid)))

include/linux/mod_devicetable.h

@@ -788,4 +788,16 @@ struct tee_client_device_id {
 	uuid_t uuid;
 };
 
+/* WMI */
+
+#define WMI_MODULE_PREFIX	"wmi:"
+
+/**
+ * struct wmi_device_id - WMI device identifier
+ * @guid_string: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
+ */
+struct wmi_device_id {
+	const char guid_string[UUID_STRING_LEN+1];
+};
+
 #endif /* LINUX_MOD_DEVICETABLE_H */

include/linux/platform_data/mlxreg.h

@@ -61,6 +61,7 @@ struct mlxreg_hotplug_device {
  * @reg: attribute register;
  * @mask: attribute access mask;
  * @bit: attribute effective bit;
+ * @capability: attribute capability register;
  * @mode: access mode;
  * @np - pointer to node platform associated with attribute;
  * @hpdev - hotplug device data;
@@ -72,6 +73,7 @@ struct mlxreg_core_data {
 	u32 reg;
 	u32 mask;
 	u32 bit;
+	u32 capability;
 	umode_t	mode;
 	struct device_node *np;
 	struct mlxreg_hotplug_device hpdev;
@@ -107,9 +109,9 @@ struct mlxreg_core_item {
 /**
  * struct mlxreg_core_platform_data - platform data:
  *
- * @led_data: led private data;
+ * @data: instance private data;
  * @regmap: register map of parent device;
- * @counter: number of led instances;
+ * @counter: number of instances;
  */
 struct mlxreg_core_platform_data {
 	struct mlxreg_core_data *data;

include/linux/wmi.h

@@ -18,6 +18,7 @@
 
 #include <linux/device.h>
 #include <linux/acpi.h>
+#include <linux/mod_devicetable.h>
 #include <uapi/linux/wmi.h>
 
 struct wmi_device {
@@ -39,10 +40,6 @@ extern union acpi_object *wmidev_block_query(struct wmi_device *wdev,
 
 extern int set_required_buffer_size(struct wmi_device *wdev, u64 length);
 
-struct wmi_device_id {
-	const char *guid_string;
-};
-
 struct wmi_driver {
 	struct device_driver driver;
 	const struct wmi_device_id *id_table;

scripts/mod/devicetable-offsets.c

@@ -228,5 +228,8 @@ int main(void)
 	DEVID(tee_client_device_id);
 	DEVID_FIELD(tee_client_device_id, uuid);
 
+	DEVID(wmi_device_id);
+	DEVID_FIELD(wmi_device_id, guid_string);
+
 	return 0;
 }

scripts/mod/file2alias.c

@@ -40,6 +40,7 @@ typedef struct {
 typedef struct {
 	__u8 b[16];
 } uuid_t;
+#define	UUID_STRING_LEN		36
 
 /* Big exception to the "don't include kernel headers into userspace, which
  * even potentially has different endianness and word sizes, since
@@ -53,6 +54,9 @@ struct devtable {
 	int (*do_entry)(const char *filename, void *symval, char *alias);
 };
 
+/* Size of alias provided to do_entry functions */
+#define ALIAS_SIZE 500
+
 /* Define a variable f that holds the value of field f of struct devid
  * based at address m.
  */
@@ -1305,6 +1309,27 @@ static int do_tee_entry(const char *filename, void *symval, char *alias)
 	return 1;
 }
 
+/* Looks like: wmi:guid */
+static int do_wmi_entry(const char *filename, void *symval, char *alias)
+{
+	int len;
+	DEF_FIELD_ADDR(symval, wmi_device_id, guid_string);
+
+	if (strlen(*guid_string) != UUID_STRING_LEN) {
+		warn("Invalid WMI device id 'wmi:%s' in '%s'\n",
+				*guid_string, filename);
+		return 0;
+	}
+
+	len = snprintf(alias, ALIAS_SIZE, WMI_MODULE_PREFIX "%s", *guid_string);
+	if (len < 0 || len >= ALIAS_SIZE) {
+		warn("Could not generate all MODULE_ALIAS's in '%s'\n",
+				filename);
+		return 0;
+	}
+	return 1;
+}
+
 /* Does namelen bytes of name exactly match the symbol? */
 static bool sym_is(const char *name, unsigned namelen, const char *symbol)
 {
@@ -1321,7 +1346,7 @@ static void do_table(void *symval, unsigned long size,
 		     struct module *mod)
 {
 	unsigned int i;
-	char alias[500];
+	char alias[ALIAS_SIZE];
 
 	device_id_check(mod->name, device_id, size, id_size, symval);
 	/* Leave last one: it's the terminator. */
@@ -1376,6 +1401,7 @@ static const struct devtable devtable[] = {
 	{"tbsvc", SIZE_tb_service_id, do_tbsvc_entry},
 	{"typec", SIZE_typec_device_id, do_typec_entry},
 	{"tee", SIZE_tee_client_device_id, do_tee_entry},
+	{"wmi", SIZE_wmi_device_id, do_wmi_entry},
 };
 
 /* Create MODULE_ALIAS() statements.