diff options
Diffstat (limited to 'drivers/platform/x86')
| -rw-r--r-- | drivers/platform/x86/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/platform/x86/Makefile | 2 | ||||
| -rw-r--r-- | drivers/platform/x86/amd-pmc.c | 42 | ||||
| -rw-r--r-- | drivers/platform/x86/asus-wmi.c | 2 | ||||
| -rw-r--r-- | drivers/platform/x86/i2c-multi-instantiate.c | 174 | ||||
| -rw-r--r-- | drivers/platform/x86/intel/int3472/tps68470_board_data.c | 3 | ||||
| -rw-r--r-- | drivers/platform/x86/serial-multi-instantiate.c | 348 | ||||
| -rw-r--r-- | drivers/platform/x86/thinkpad_acpi.c | 1 |
8 files changed, 392 insertions, 192 deletions
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 24deeeb29af2..8d1eec208854 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -990,16 +990,16 @@ config TOPSTAR_LAPTOP If you have a Topstar laptop, say Y or M here. -config I2C_MULTI_INSTANTIATE - tristate "I2C multi instantiate pseudo device driver" - depends on I2C && ACPI +config SERIAL_MULTI_INSTANTIATE + tristate "Serial bus multi instantiate pseudo device driver" + depends on I2C && SPI && ACPI help - Some ACPI-based systems list multiple i2c-devices in a single ACPI - firmware-node. This driver will instantiate separate i2c-clients + Some ACPI-based systems list multiple devices in a single ACPI + firmware-node. This driver will instantiate separate clients for each device in the firmware-node. To compile this driver as a module, choose M here: the module - will be called i2c-multi-instantiate. + will be called serial-multi-instantiate. config MLX_PLATFORM tristate "Mellanox Technologies platform support" diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile index c12a9b044fd8..9527088bba7f 100644 --- a/drivers/platform/x86/Makefile +++ b/drivers/platform/x86/Makefile @@ -110,7 +110,7 @@ obj-$(CONFIG_TOPSTAR_LAPTOP) += topstar-laptop.o # Platform drivers obj-$(CONFIG_FW_ATTR_CLASS) += firmware_attributes_class.o -obj-$(CONFIG_I2C_MULTI_INSTANTIATE) += i2c-multi-instantiate.o +obj-$(CONFIG_SERIAL_MULTI_INSTANTIATE) += serial-multi-instantiate.o obj-$(CONFIG_MLX_PLATFORM) += mlx-platform.o obj-$(CONFIG_TOUCHSCREEN_DMI) += touchscreen_dmi.o obj-$(CONFIG_WIRELESS_HOTKEY) += wireless-hotkey.o diff --git a/drivers/platform/x86/amd-pmc.c b/drivers/platform/x86/amd-pmc.c index 4c72ba68b315..b1103f85a85a 100644 --- a/drivers/platform/x86/amd-pmc.c +++ b/drivers/platform/x86/amd-pmc.c @@ -21,6 +21,7 @@ #include <linux/module.h> #include <linux/pci.h> #include <linux/platform_device.h> +#include <linux/pm_qos.h> #include <linux/rtc.h> #include <linux/suspend.h> #include <linux/seq_file.h> @@ -85,6 +86,9 @@ #define PMC_MSG_DELAY_MIN_US 50 #define RESPONSE_REGISTER_LOOP_MAX 20000 +/* QoS request for letting CPUs in idle states, but not the deepest */ +#define AMD_PMC_MAX_IDLE_STATE_LATENCY 3 + #define SOC_SUBSYSTEM_IP_MAX 12 #define DELAY_MIN_US 2000 #define DELAY_MAX_US 3000 @@ -131,6 +135,7 @@ struct amd_pmc_dev { struct device *dev; struct pci_dev *rdev; struct mutex lock; /* generic mutex lock */ + struct pm_qos_request amd_pmc_pm_qos_req; #if IS_ENABLED(CONFIG_DEBUG_FS) struct dentry *dbgfs_dir; #endif /* CONFIG_DEBUG_FS */ @@ -521,6 +526,14 @@ static int amd_pmc_verify_czn_rtc(struct amd_pmc_dev *pdev, u32 *arg) rc = rtc_alarm_irq_enable(rtc_device, 0); dev_dbg(pdev->dev, "wakeup timer programmed for %lld seconds\n", duration); + /* + * Prevent CPUs from getting into deep idle states while sending OS_HINT + * which is otherwise generally safe to send when at least one of the CPUs + * is not in deep idle states. + */ + cpu_latency_qos_update_request(&pdev->amd_pmc_pm_qos_req, AMD_PMC_MAX_IDLE_STATE_LATENCY); + wake_up_all_idle_cpus(); + return rc; } @@ -538,24 +551,31 @@ static int __maybe_unused amd_pmc_suspend(struct device *dev) /* Activate CZN specific RTC functionality */ if (pdev->cpu_id == AMD_CPU_ID_CZN) { rc = amd_pmc_verify_czn_rtc(pdev, &arg); - if (rc < 0) - return rc; + if (rc) + goto fail; } /* Dump the IdleMask before we send hint to SMU */ amd_pmc_idlemask_read(pdev, dev, NULL); msg = amd_pmc_get_os_hint(pdev); rc = amd_pmc_send_cmd(pdev, arg, NULL, msg, 0); - if (rc) + if (rc) { dev_err(pdev->dev, "suspend failed\n"); + goto fail; + } if (enable_stb) rc = amd_pmc_write_stb(pdev, AMD_PMC_STB_PREDEF); - if (rc) { + if (rc) { dev_err(pdev->dev, "error writing to STB\n"); - return rc; + goto fail; } + return 0; +fail: + if (pdev->cpu_id == AMD_CPU_ID_CZN) + cpu_latency_qos_update_request(&pdev->amd_pmc_pm_qos_req, + PM_QOS_DEFAULT_VALUE); return rc; } @@ -579,12 +599,15 @@ static int __maybe_unused amd_pmc_resume(struct device *dev) /* Write data incremented by 1 to distinguish in stb_read */ if (enable_stb) rc = amd_pmc_write_stb(pdev, AMD_PMC_STB_PREDEF + 1); - if (rc) { + if (rc) dev_err(pdev->dev, "error writing to STB\n"); - return rc; - } - return 0; + /* Restore the QoS request back to defaults if it was set */ + if (pdev->cpu_id == AMD_CPU_ID_CZN) + cpu_latency_qos_update_request(&pdev->amd_pmc_pm_qos_req, + PM_QOS_DEFAULT_VALUE); + + return rc; } static const struct dev_pm_ops amd_pmc_pm_ops = { @@ -722,6 +745,7 @@ static int amd_pmc_probe(struct platform_device *pdev) amd_pmc_get_smu_version(dev); platform_set_drvdata(pdev, dev); amd_pmc_dbgfs_register(dev); + cpu_latency_qos_add_request(&dev->amd_pmc_pm_qos_req, PM_QOS_DEFAULT_VALUE); return 0; err_pci_dev_put: diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index a3b83b22a3b1..2104a2621e50 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -2223,7 +2223,7 @@ static int fan_curve_check_present(struct asus_wmi *asus, bool *available, err = fan_curve_get_factory_default(asus, fan_dev); if (err) { - if (err == -ENODEV) + if (err == -ENODEV || err == -ENODATA) return 0; return err; } diff --git a/drivers/platform/x86/i2c-multi-instantiate.c b/drivers/platform/x86/i2c-multi-instantiate.c deleted file mode 100644 index 4956a1df5b90..000000000000 --- a/drivers/platform/x86/i2c-multi-instantiate.c +++ /dev/null @@ -1,174 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * I2C multi-instantiate driver, pseudo driver to instantiate multiple - * i2c-clients from a single fwnode. - * - * Copyright 2018 Hans de Goede <[email protected]> - */ - -#include <linux/acpi.h> -#include <linux/bits.h> -#include <linux/i2c.h> -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/property.h> -#include <linux/types.h> - -#define IRQ_RESOURCE_TYPE GENMASK(1, 0) -#define IRQ_RESOURCE_NONE 0 -#define IRQ_RESOURCE_GPIO 1 -#define IRQ_RESOURCE_APIC 2 - -struct i2c_inst_data { - const char *type; - unsigned int flags; - int irq_idx; -}; - -struct i2c_multi_inst_data { - int num_clients; - struct i2c_client *clients[]; -}; - -static int i2c_multi_inst_probe(struct platform_device *pdev) -{ - struct i2c_multi_inst_data *multi; - const struct i2c_inst_data *inst_data; - struct i2c_board_info board_info = {}; - struct device *dev = &pdev->dev; - struct acpi_device *adev; - char name[32]; - int i, ret; - - inst_data = device_get_match_data(dev); - if (!inst_data) { - dev_err(dev, "Error ACPI match data is missing\n"); - return -ENODEV; - } - - adev = ACPI_COMPANION(dev); - - /* Count number of clients to instantiate */ - ret = i2c_acpi_client_count(adev); - if (ret < 0) - return ret; - - multi = devm_kmalloc(dev, struct_size(multi, clients, ret), GFP_KERNEL); - if (!multi) - return -ENOMEM; - - multi->num_clients = ret; - - for (i = 0; i < multi->num_clients && inst_data[i].type; i++) { - memset(&board_info, 0, sizeof(board_info)); - strlcpy(board_info.type, inst_data[i].type, I2C_NAME_SIZE); - snprintf(name, sizeof(name), "%s-%s.%d", dev_name(dev), - inst_data[i].type, i); - board_info.dev_name = name; - switch (inst_data[i].flags & IRQ_RESOURCE_TYPE) { - case IRQ_RESOURCE_GPIO: - ret = acpi_dev_gpio_irq_get(adev, inst_data[i].irq_idx); - if (ret < 0) { - dev_err(dev, "Error requesting irq at index %d: %d\n", - inst_data[i].irq_idx, ret); - goto error; - } - board_info.irq = ret; - break; - case IRQ_RESOURCE_APIC: - ret = platform_get_irq(pdev, inst_data[i].irq_idx); - if (ret < 0) { - dev_dbg(dev, "Error requesting irq at index %d: %d\n", - inst_data[i].irq_idx, ret); - goto error; - } - board_info.irq = ret; - break; - default: - board_info.irq = 0; - break; - } - multi->clients[i] = i2c_acpi_new_device(dev, i, &board_info); - if (IS_ERR(multi->clients[i])) { - ret = dev_err_probe(dev, PTR_ERR(multi->clients[i]), - "Error creating i2c-client, idx %d\n", i); - goto error; - } - } - if (i < multi->num_clients) { - dev_err(dev, "Error finding driver, idx %d\n", i); - ret = -ENODEV; - goto error; - } - - platform_set_drvdata(pdev, multi); - return 0; - -error: - while (--i >= 0) - i2c_unregister_device(multi->clients[i]); - - return ret; -} - -static int i2c_multi_inst_remove(struct platform_device *pdev) -{ - struct i2c_multi_inst_data *multi = platform_get_drvdata(pdev); - int i; - - for (i = 0; i < multi->num_clients; i++) - i2c_unregister_device(multi->clients[i]); - - return 0; -} - -static const struct i2c_inst_data bsg1160_data[] = { - { "bmc150_accel", IRQ_RESOURCE_GPIO, 0 }, - { "bmc150_magn" }, - { "bmg160" }, - {} -}; - -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 }, - { "tps6598x", IRQ_RESOURCE_APIC, 2 }, - { "tps6598x", IRQ_RESOURCE_APIC, 3 }, - {} -}; - -/* - * Note new device-ids must also be added to i2c_multi_instantiate_ids in - * drivers/acpi/scan.c: acpi_device_enumeration_by_parent(). - */ -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 }, - { } -}; -MODULE_DEVICE_TABLE(acpi, i2c_multi_inst_acpi_ids); - -static struct platform_driver i2c_multi_inst_driver = { - .driver = { - .name = "I2C multi instantiate pseudo device driver", - .acpi_match_table = i2c_multi_inst_acpi_ids, - }, - .probe = i2c_multi_inst_probe, - .remove = i2c_multi_inst_remove, -}; -module_platform_driver(i2c_multi_inst_driver); - -MODULE_DESCRIPTION("I2C multi instantiate pseudo device driver"); -MODULE_AUTHOR("Hans de Goede <[email protected]>"); -MODULE_LICENSE("GPL"); diff --git a/drivers/platform/x86/intel/int3472/tps68470_board_data.c b/drivers/platform/x86/intel/int3472/tps68470_board_data.c index f93d437fd192..525f09a3b5ff 100644 --- a/drivers/platform/x86/intel/int3472/tps68470_board_data.c +++ b/drivers/platform/x86/intel/int3472/tps68470_board_data.c @@ -100,7 +100,8 @@ static struct gpiod_lookup_table surface_go_tps68470_gpios = { .dev_id = "i2c-INT347A:00", .table = { GPIO_LOOKUP("tps68470-gpio", 9, "reset", GPIO_ACTIVE_LOW), - GPIO_LOOKUP("tps68470-gpio", 7, "powerdown", GPIO_ACTIVE_LOW) + GPIO_LOOKUP("tps68470-gpio", 7, "powerdown", GPIO_ACTIVE_LOW), + { } } }; diff --git a/drivers/platform/x86/serial-multi-instantiate.c b/drivers/platform/x86/serial-multi-instantiate.c new file mode 100644 index 000000000000..1e8063b7c169 --- /dev/null +++ b/drivers/platform/x86/serial-multi-instantiate.c @@ -0,0 +1,348 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Serial multi-instantiate driver, pseudo driver to instantiate multiple + * client devices from a single fwnode. + * + * Copyright 2018 Hans de Goede <[email protected]> + */ + +#include <linux/acpi.h> +#include <linux/bits.h> +#include <linux/i2c.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/property.h> +#include <linux/spi/spi.h> +#include <linux/types.h> + +#define IRQ_RESOURCE_TYPE GENMASK(1, 0) +#define IRQ_RESOURCE_NONE 0 +#define IRQ_RESOURCE_GPIO 1 +#define IRQ_RESOURCE_APIC 2 + +enum smi_bus_type { + SMI_I2C, + SMI_SPI, + SMI_AUTO_DETECT, +}; + +struct smi_instance { + const char *type; + unsigned int flags; + int irq_idx; +}; + +struct smi_node { + enum smi_bus_type bus_type; + struct smi_instance instances[]; +}; + +struct smi { + int i2c_num; + int spi_num; + struct i2c_client **i2c_devs; + struct spi_device **spi_devs; +}; + +static int smi_get_irq(struct platform_device *pdev, struct acpi_device *adev, + const struct smi_instance *inst) +{ + int ret; + + switch (inst->flags & IRQ_RESOURCE_TYPE) { + case IRQ_RESOURCE_GPIO: + ret = acpi_dev_gpio_irq_get(adev, inst->irq_idx); + break; + case IRQ_RESOURCE_APIC: + ret = platform_get_irq(pdev, inst->irq_idx); + break; + default: + return 0; + } + + if (ret < 0) + dev_err_probe(&pdev->dev, ret, "Error requesting irq at index %d: %d\n", + inst->irq_idx, ret); + + return ret; +} + +static void smi_devs_unregister(struct smi *smi) +{ + while (smi->i2c_num > 0) + i2c_unregister_device(smi->i2c_devs[--smi->i2c_num]); + + while (smi->spi_num > 0) + spi_unregister_device(smi->spi_devs[--smi->spi_num]); +} + +/** + * smi_spi_probe - Instantiate multiple SPI devices from inst array + * @pdev: Platform device + * @adev: ACPI device + * @smi: Internal struct for Serial multi instantiate driver + * @inst_array: Array of instances to probe + * + * Returns the number of SPI devices instantiate, Zero if none is found or a negative error code. + */ +static int smi_spi_probe(struct platform_device *pdev, struct acpi_device *adev, struct smi *smi, + const struct smi_instance *inst_array) +{ + struct device *dev = &pdev->dev; + struct spi_controller *ctlr; + struct spi_device *spi_dev; + char name[50]; + int i, ret, count; + + ret = acpi_spi_count_resources(adev); + if (ret < 0) + return ret; + else if (!ret) + return -ENODEV; + + count = ret; + + smi->spi_devs = devm_kcalloc(dev, count, sizeof(*smi->spi_devs), GFP_KERNEL); + if (!smi->spi_devs) + return -ENOMEM; + + for (i = 0; i < count && inst_array[i].type; i++) { + + spi_dev = acpi_spi_device_alloc(NULL, adev, i); + if (IS_ERR(spi_dev)) { + ret = PTR_ERR(spi_dev); + dev_err_probe(dev, ret, "failed to allocate SPI device %s from ACPI: %d\n", + dev_name(&adev->dev), ret); + goto error; + } + + ctlr = spi_dev->controller; + + strscpy(spi_dev->modalias, inst_array[i].type, sizeof(spi_dev->modalias)); + + ret = smi_get_irq(pdev, adev, &inst_array[i]); + if (ret < 0) { + spi_dev_put(spi_dev); + goto error; + } + spi_dev->irq = ret; + + snprintf(name, sizeof(name), "%s-%s-%s.%d", dev_name(&ctlr->dev), dev_name(dev), + inst_array[i].type, i); + spi_dev->dev.init_name = name; + + ret = spi_add_device(spi_dev); + if (ret) { + dev_err_probe(&ctlr->dev, ret, + "failed to add SPI device %s from ACPI: %d\n", + dev_name(&adev->dev), ret); + spi_dev_put(spi_dev); + goto error; + } + + dev_dbg(dev, "SPI device %s using chip select %u", name, spi_dev->chip_select); + + smi->spi_devs[i] = spi_dev; + smi->spi_num++; + } + + if (smi->spi_num < count) { + dev_dbg(dev, "Error finding driver, idx %d\n", i); + ret = -ENODEV; + goto error; + } + + dev_info(dev, "Instantiated %d SPI devices.\n", smi->spi_num); + + return 0; +error: + smi_devs_unregister(smi); + + return ret; +} + +/** + * smi_i2c_probe - Instantiate multiple I2C devices from inst array + * @pdev: Platform device + * @adev: ACPI device + * @smi: Internal struct for Serial multi instantiate driver + * @inst_array: Array of instances to probe + * + * Returns the number of I2C devices instantiate, Zero if none is found or a negative error code. + */ +static int smi_i2c_probe(struct platform_device *pdev, struct acpi_device *adev, struct smi *smi, + const struct smi_instance *inst_array) +{ + struct i2c_board_info board_info = {}; + struct device *dev = &pdev->dev; + char name[32]; + int i, ret, count; + + ret = i2c_acpi_client_count(adev); + if (ret < 0) + return ret; + else if (!ret) + return -ENODEV; + + count = ret; + + smi->i2c_devs = devm_kcalloc(dev, count, sizeof(*smi->i2c_devs), GFP_KERNEL); + if (!smi->i2c_devs) + return -ENOMEM; + + for (i = 0; i < count && inst_array[i].type; i++) { + memset(&board_info, 0, sizeof(board_info)); + strscpy(board_info.type, inst_array[i].type, I2C_NAME_SIZE); + snprintf(name, sizeof(name), "%s-%s.%d", dev_name(dev), inst_array[i].type, i); + board_info.dev_name = name; + + ret = smi_get_irq(pdev, adev, &inst_array[i]); + if (ret < 0) + goto error; + board_info.irq = ret; + + smi->i2c_devs[i] = i2c_acpi_new_device(dev, i, &board_info); + if (IS_ERR(smi->i2c_devs[i])) { + ret = dev_err_probe(dev, PTR_ERR(smi->i2c_devs[i]), + "Error creating i2c-client, idx %d\n", i); + goto error; + } + smi->i2c_num++; + } + if (smi->i2c_num < count) { + dev_dbg(dev, "Error finding driver, idx %d\n", i); + ret = -ENODEV; + goto error; + } + + dev_info(dev, "Instantiated %d I2C devices.\n", smi->i2c_num); + + return 0; +error: + smi_devs_unregister(smi); + + return ret; +} + +static int smi_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + const struct smi_node *node; + struct acpi_device *adev; + struct smi *smi; + + adev = ACPI_COMPANION(dev); + if (!adev) + return -ENODEV; + + node = device_get_match_data(dev); + if (!node) { + dev_dbg(dev, "Error ACPI match data is missing\n"); + return -ENODEV; + } + + smi = devm_kzalloc(dev, sizeof(*smi), GFP_KERNEL); + if (!smi) + return -ENOMEM; + + platform_set_drvdata(pdev, smi); + + switch (node->bus_type) { + case SMI_I2C: + return smi_i2c_probe(pdev, adev, smi, node->instances); + case SMI_SPI: + return smi_spi_probe(pdev, adev, smi, node->instances); + case SMI_AUTO_DETECT: + if (i2c_acpi_client_count(adev) > 0) + return smi_i2c_probe(pdev, adev, smi, node->instances); + else + return smi_spi_probe(pdev, adev, smi, node->instances); + default: + return -EINVAL; + } + + return 0; /* never reached */ +} + +static int smi_remove(struct platform_device *pdev) +{ + struct smi *smi = platform_get_drvdata(pdev); + + smi_devs_unregister(smi); + + return 0; +} + +static const struct smi_node bsg1160_data = { + .instances = { + { "bmc150_accel", IRQ_RESOURCE_GPIO, 0 }, + { "bmc150_magn" }, + { "bmg160" }, + {} + }, + .bus_type = SMI_I2C, +}; + +static const struct smi_node bsg2150_data = { + .instances = { + { "bmc150_accel", IRQ_RESOURCE_GPIO, 0 }, + { "bmc150_magn" }, + /* The resources describe a 3th client, but it is not really there. */ + { "bsg2150_dummy_dev" }, + {} + }, + .bus_type = SMI_I2C, +}; + +static const struct smi_node int3515_data = { + .instances = { + { "tps6598x", IRQ_RESOURCE_APIC, 0 }, + { "tps6598x", IRQ_RESOURCE_APIC, 1 }, + { "tps6598x", IRQ_RESOURCE_APIC, 2 }, + { "tps6598x", IRQ_RESOURCE_APIC, 3 }, + {} + }, + .bus_type = SMI_I2C, +}; + +static const struct smi_node cs35l41_hda = { + .instances = { + { "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 }, + { "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 }, + { "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 }, + { "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 }, + {} + }, + .bus_type = SMI_AUTO_DETECT, +}; + +/* + * Note new device-ids must also be added to ignore_serial_bus_ids in + * drivers/acpi/scan.c: acpi_device_enumeration_by_parent(). + */ +static const struct acpi_device_id smi_acpi_ids[] = { + { "BSG1160", (unsigned long)&bsg1160_data }, + { "BSG2150", (unsigned long)&bsg2150_data }, + { "INT3515", (unsigned long)&int3515_data }, + { "CSC3551", (unsigned long)&cs35l41_hda }, + /* Non-conforming _HID for Cirrus Logic already released */ + { "CLSA0100", (unsigned long)&cs35l41_hda }, + { } +}; +MODULE_DEVICE_TABLE(acpi, smi_acpi_ids); + +static struct platform_driver smi_driver = { + .driver = { + .name = "Serial bus multi instantiate pseudo device driver", + .acpi_match_table = smi_acpi_ids, + }, + .probe = smi_probe, + .remove = smi_remove, +}; +module_platform_driver(smi_driver); + +MODULE_DESCRIPTION("Serial multi instantiate pseudo device driver"); +MODULE_AUTHOR("Hans de Goede <[email protected]>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index bd045486b933..3424b080db77 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -8703,6 +8703,7 @@ static const struct tpacpi_quirk fan_quirk_table[] __initconst = { TPACPI_Q_LNV3('N', '4', '0', TPACPI_FAN_2CTL), /* P1 / X1 Extreme (4nd gen) */ TPACPI_Q_LNV3('N', '3', '0', TPACPI_FAN_2CTL), /* P15 (1st gen) / P15v (1st gen) */ TPACPI_Q_LNV3('N', '3', '2', TPACPI_FAN_2CTL), /* X1 Carbon (9th gen) */ + TPACPI_Q_LNV3('N', '3', '7', TPACPI_FAN_2CTL), /* T15g (2nd gen) */ TPACPI_Q_LNV3('N', '1', 'O', TPACPI_FAN_NOFAN), /* X1 Tablet (2nd gen) */ }; 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