platform-drivers-x86 for v6.3-2

A small set of assorted bug and build/warning fixes for 6.3.
 
 The following is an automated git shortlog grouped by driver:
 
 ISST:
  -  Fix kernel documentation warnings
  -  Increase range of valid mail box commands
 
 dell-ddv:
  -  Fix temperature scaling
  -  Fix cache invalidation on resume
 
 int3472:
  -  Add GPIOs to Surface Go 3 Board data
 
 platform:
  -  mellanox: mlx-platform: Initialize shift variable to 0
  -  x86: MLX_PLATFORM: select REGMAP instead of depending on it
  -  mellanox: select REGMAP instead of depending on it
 
 platform/x86/amd:
  -  pmc: remove CONFIG_SUSPEND checks
 
 platform/x86/intel/tpmi:
  -  Fix double free reported by Smatch
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Merge tag 'platform-drivers-x86-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Hans de Goede:
 "A small set of assorted bug and build/warning fixes"

* tag 'platform-drivers-x86-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform: mellanox: mlx-platform: Initialize shift variable to 0
  platform/x86: int3472: Add GPIOs to Surface Go 3 Board data
  platform/x86: ISST: Fix kernel documentation warnings
  platform: x86: MLX_PLATFORM: select REGMAP instead of depending on it
  platform: mellanox: select REGMAP instead of depending on it
  platform/x86/intel/tpmi: Fix double free reported by Smatch
  platform/x86: ISST: Increase range of valid mail box commands
  platform/x86: dell-ddv: Fix temperature scaling
  platform/x86: dell-ddv: Fix cache invalidation on resume
  platform/x86/amd: pmc: remove CONFIG_SUSPEND checks

drivers/platform/mellanox/Kconfig

@@ -16,17 +16,17 @@ if MELLANOX_PLATFORM
 
 config MLXREG_HOTPLUG
 	tristate "Mellanox platform hotplug driver support"
-	depends on REGMAP
 	depends on HWMON
 	depends on I2C
+	select REGMAP
 	help
 	  This driver handles hot-plug events for the power suppliers, power
 	  cables and fans on the wide range Mellanox IB and Ethernet systems.
 
 config MLXREG_IO
 	tristate "Mellanox platform register access driver support"
-	depends on REGMAP
 	depends on HWMON
+	select REGMAP
 	help
 	  This driver allows access to Mellanox programmable device register
 	  space through sysfs interface. The sets of registers for sysfs access
@@ -36,9 +36,9 @@ config MLXREG_IO
 
 config MLXREG_LC
 	tristate "Mellanox line card platform driver support"
-	depends on REGMAP
 	depends on HWMON
 	depends on I2C
+	select REGMAP
 	help
 	  This driver provides support for the Mellanox MSN4800-XX line cards,
 	  which are the part of MSN4800 Ethernet modular switch systems
@@ -80,10 +80,9 @@ config MLXBF_PMC
 
 config NVSW_SN2201
 	tristate "Nvidia SN2201 platform driver support"
-	depends on REGMAP
 	depends on HWMON
 	depends on I2C
-	depends on REGMAP_I2C
+	select REGMAP_I2C
 	help
 	  This driver provides support for the Nvidia SN2201 platform.
 	  The SN2201 is a highly integrated for one rack unit system with

drivers/platform/x86/Kconfig

@@ -955,7 +955,8 @@ config SERIAL_MULTI_INSTANTIATE
 
 config MLX_PLATFORM
 	tristate "Mellanox Technologies platform support"
-	depends on I2C && REGMAP
+	depends on I2C
+	select REGMAP
 	help
 	  This option enables system support for the Mellanox Technologies
 	  platform. The Mellanox systems provide data center networking

drivers/platform/x86/amd/pmc.c

@@ -171,9 +171,7 @@ MODULE_PARM_DESC(disable_workarounds, "Disable workarounds for platform bugs");
 static struct amd_pmc_dev pmc;
 static int amd_pmc_send_cmd(struct amd_pmc_dev *dev, u32 arg, u32 *data, u8 msg, bool ret);
 static int amd_pmc_read_stb(struct amd_pmc_dev *dev, u32 *buf);
-#ifdef CONFIG_SUSPEND
 static int amd_pmc_write_stb(struct amd_pmc_dev *dev, u32 data);
-#endif
 
 static inline u32 amd_pmc_reg_read(struct amd_pmc_dev *dev, int reg_offset)
 {
@@ -386,7 +384,6 @@ static int get_metrics_table(struct amd_pmc_dev *pdev, struct smu_metrics *table
 	return 0;
 }
 
-#ifdef CONFIG_SUSPEND
 static void amd_pmc_validate_deepest(struct amd_pmc_dev *pdev)
 {
 	struct smu_metrics table;
@@ -400,7 +397,6 @@ static void amd_pmc_validate_deepest(struct amd_pmc_dev *pdev)
 		dev_dbg(pdev->dev, "Last suspend in deepest state for %lluus\n",
 			 table.timein_s0i3_lastcapture);
 }
-#endif
 
 static int amd_pmc_get_smu_version(struct amd_pmc_dev *dev)
 {
@@ -673,7 +669,6 @@ out_unlock:
 	return rc;
 }
 
-#ifdef CONFIG_SUSPEND
 static int amd_pmc_get_os_hint(struct amd_pmc_dev *dev)
 {
 	switch (dev->cpu_id) {
@@ -861,9 +856,7 @@ static int __maybe_unused amd_pmc_suspend_handler(struct device *dev)
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(amd_pmc_pm, amd_pmc_suspend_handler, NULL);
+static DEFINE_SIMPLE_DEV_PM_OPS(amd_pmc_pm, amd_pmc_suspend_handler, NULL);
-
-#endif
 
 static const struct pci_device_id pmc_pci_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, AMD_CPU_ID_PS) },
@@ -905,7 +898,6 @@ static int amd_pmc_s2d_init(struct amd_pmc_dev *dev)
 	return 0;
 }
 
-#ifdef CONFIG_SUSPEND
 static int amd_pmc_write_stb(struct amd_pmc_dev *dev, u32 data)
 {
 	int err;
@@ -926,7 +918,6 @@ static int amd_pmc_write_stb(struct amd_pmc_dev *dev, u32 data)
 
 	return 0;
 }
-#endif
 
 static int amd_pmc_read_stb(struct amd_pmc_dev *dev, u32 *buf)
 {
@@ -1017,11 +1008,11 @@ static int amd_pmc_probe(struct platform_device *pdev)
 	}
 
 	platform_set_drvdata(pdev, dev);
-#ifdef CONFIG_SUSPEND
+	if (IS_ENABLED(CONFIG_SUSPEND)) {
-	err = acpi_register_lps0_dev(&amd_pmc_s2idle_dev_ops);
+		err = acpi_register_lps0_dev(&amd_pmc_s2idle_dev_ops);
-	if (err)
+		if (err)
-		dev_warn(dev->dev, "failed to register LPS0 sleep handler, expect increased power consumption\n");
+			dev_warn(dev->dev, "failed to register LPS0 sleep handler, expect increased power consumption\n");
-#endif
+	}
 
 	amd_pmc_dbgfs_register(dev);
 	return 0;
@@ -1035,9 +1026,8 @@ static int amd_pmc_remove(struct platform_device *pdev)
 {
 	struct amd_pmc_dev *dev = platform_get_drvdata(pdev);
 
-#ifdef CONFIG_SUSPEND
+	if (IS_ENABLED(CONFIG_SUSPEND))
-	acpi_unregister_lps0_dev(&amd_pmc_s2idle_dev_ops);
+		acpi_unregister_lps0_dev(&amd_pmc_s2idle_dev_ops);
-#endif
 	amd_pmc_dbgfs_unregister(dev);
 	pci_dev_put(dev->rdev);
 	mutex_destroy(&dev->lock);
@@ -1061,9 +1051,7 @@ static struct platform_driver amd_pmc_driver = {
 		.name = "amd_pmc",
 		.acpi_match_table = amd_pmc_acpi_ids,
 		.dev_groups = pmc_groups,
-#ifdef CONFIG_SUSPEND
+		.pm = pm_sleep_ptr(&amd_pmc_pm),
-		.pm = &amd_pmc_pm,
-#endif
 	},
 	.probe = amd_pmc_probe,
 	.remove = amd_pmc_remove,

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

@@ -17,7 +17,6 @@
 #include <linux/kernel.h>
 #include <linux/hwmon.h>
 #include <linux/kstrtox.h>
-#include <linux/math.h>
 #include <linux/math64.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
@@ -96,6 +95,7 @@ struct combined_chip_info {
 };
 
 struct dell_wmi_ddv_sensors {
+	bool active;
 	struct mutex lock;	/* protect caching */
 	unsigned long timestamp;
 	union acpi_object *obj;
@@ -520,6 +520,9 @@ static struct hwmon_channel_info *dell_wmi_ddv_channel_create(struct device *dev
 
 static void dell_wmi_ddv_hwmon_cache_invalidate(struct dell_wmi_ddv_sensors *sensors)
 {
+	if (!sensors->active)
+		return;
+
 	mutex_lock(&sensors->lock);
 	kfree(sensors->obj);
 	sensors->obj = NULL;
@@ -530,6 +533,7 @@ static void dell_wmi_ddv_hwmon_cache_destroy(void *data)
 {
 	struct dell_wmi_ddv_sensors *sensors = data;
 
+	sensors->active = false;
 	mutex_destroy(&sensors->lock);
 	kfree(sensors->obj);
 }
@@ -549,6 +553,7 @@ static struct hwmon_channel_info *dell_wmi_ddv_channel_init(struct wmi_device *w
 		return ERR_PTR(ret);
 
 	mutex_init(&sensors->lock);
+	sensors->active = true;
 
 	ret = devm_add_action_or_reset(&wdev->dev, dell_wmi_ddv_hwmon_cache_destroy, sensors);
 	if (ret < 0)
@@ -659,7 +664,8 @@ static ssize_t temp_show(struct device *dev, struct device_attribute *attr, char
 	if (ret < 0)
 		return ret;
 
-	return sysfs_emit(buf, "%d\n", DIV_ROUND_CLOSEST(value, 10));
+	/* Use 2731 instead of 2731.5 to avoid unnecessary rounding */
+	return sysfs_emit(buf, "%d\n", value - 2731);
 }
 
 static ssize_t eppid_show(struct device *dev, struct device_attribute *attr, char *buf)
@@ -852,7 +858,7 @@ static int dell_wmi_ddv_resume(struct device *dev)
 {
 	struct dell_wmi_ddv_data *data = dev_get_drvdata(dev);
 
-	/* Force re-reading of all sensors */
+	/* Force re-reading of all active sensors */
 	dell_wmi_ddv_hwmon_cache_invalidate(&data->fans);
 	dell_wmi_ddv_hwmon_cache_invalidate(&data->temps);
 

drivers/platform/x86/intel/int3472/tps68470_board_data.c

@@ -159,9 +159,10 @@ static const struct int3472_tps68470_board_data surface_go_tps68470_board_data =
 static const struct int3472_tps68470_board_data surface_go3_tps68470_board_data = {
 	.dev_name = "i2c-INT3472:01",
 	.tps68470_regulator_pdata = &surface_go_tps68470_pdata,
-	.n_gpiod_lookups = 1,
+	.n_gpiod_lookups = 2,
 	.tps68470_gpio_lookup_tables = {
-		&surface_go_int347a_gpios
+		&surface_go_int347a_gpios,
+		&surface_go_int347e_gpios,
 	},
 };
 

drivers/platform/x86/intel/speed_select_if/isst_if_common.c

@@ -47,7 +47,7 @@ struct isst_cmd_set_req_type {
 
 static const struct isst_valid_cmd_ranges isst_valid_cmds[] = {
 	{0xD0, 0x00, 0x03},
-	{0x7F, 0x00, 0x0B},
+	{0x7F, 0x00, 0x0C},
 	{0x7F, 0x10, 0x12},
 	{0x7F, 0x20, 0x23},
 	{0x94, 0x03, 0x03},
@@ -112,6 +112,7 @@ static void isst_delete_hash(void)
  * isst_store_cmd() - Store command to a hash table
  * @cmd: Mailbox command.
  * @sub_cmd: Mailbox sub-command or MSR id.
+ * @cpu: Target CPU for the command
  * @mbox_cmd_type: Mailbox or MSR command.
  * @param: Mailbox parameter.
  * @data: Mailbox request data or MSR data.
@@ -363,7 +364,7 @@ static struct pci_dev *_isst_if_get_pci_dev(int cpu, int bus_no, int dev, int fn
 /**
  * isst_if_get_pci_dev() - Get the PCI device instance for a CPU
  * @cpu: Logical CPU number.
- * @bus_number: The bus number assigned by the hardware.
+ * @bus_no: The bus number assigned by the hardware.
  * @dev: The device number assigned by the hardware.
  * @fn: The function number assigned by the hardware.
  *

drivers/platform/x86/intel/speed_select_if/isst_if_common.h

@@ -40,6 +40,7 @@
  * @offset:	Offset to the first valid member in command structure.
  *		This will be the offset of the start of the command
  *		after command count field
+ * @owner:	Registered module owner
  * @cmd_callback: Callback function to handle IOCTL. The callback has the
  *		command pointer with data for command. There is a pointer
  *		called write_only, which when set, will not copy the

drivers/platform/x86/intel/tpmi.c

@@ -209,14 +209,14 @@ static int tpmi_create_device(struct intel_tpmi_info *tpmi_info,
 	if (!name)
 		return -EOPNOTSUPP;
 
-	feature_vsec_dev = kzalloc(sizeof(*feature_vsec_dev), GFP_KERNEL);
+	res = kcalloc(pfs->pfs_header.num_entries, sizeof(*res), GFP_KERNEL);
-	if (!feature_vsec_dev)
+	if (!res)
 		return -ENOMEM;
 
-	res = kcalloc(pfs->pfs_header.num_entries, sizeof(*res), GFP_KERNEL);
+	feature_vsec_dev = kzalloc(sizeof(*feature_vsec_dev), GFP_KERNEL);
-	if (!res) {
+	if (!feature_vsec_dev) {
 		ret = -ENOMEM;
-		goto free_vsec;
+		goto free_res;
 	}
 
 	snprintf(feature_id_name, sizeof(feature_id_name), "tpmi-%s", name);
@@ -239,6 +239,8 @@ static int tpmi_create_device(struct intel_tpmi_info *tpmi_info,
 	/*
 	 * intel_vsec_add_aux() is resource managed, no explicit
 	 * delete is required on error or on module unload.
+	 * feature_vsec_dev memory is also freed as part of device
+	 * delete.
 	 */
 	ret = intel_vsec_add_aux(vsec_dev->pcidev, &vsec_dev->auxdev.dev,
 				 feature_vsec_dev, feature_id_name);
@@ -249,8 +251,6 @@ static int tpmi_create_device(struct intel_tpmi_info *tpmi_info,
 
 free_res:
 	kfree(res);
-free_vsec:
-	kfree(feature_vsec_dev);
 
 	return ret;
 }

drivers/platform/x86/mlx-platform.c

@@ -5980,7 +5980,7 @@ MODULE_DEVICE_TABLE(dmi, mlxplat_dmi_table);
 static int mlxplat_mlxcpld_verify_bus_topology(int *nr)
 {
 	struct i2c_adapter *search_adap;
-	int shift, i;
+	int i, shift = 0;
 
 	/* Scan adapters from expected id to verify it is free. */
 	*nr = MLXPLAT_CPLD_PHYS_ADAPTER_DEF_NR;