1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 3 /* 4 * ACPI fan device IDs are shared between the fan driver and the device power 5 * management code. 6 * 7 * Add new device IDs before the generic ACPI fan one. 8 */ 9 10 #ifndef _ACPI_FAN_H_ 11 #define _ACPI_FAN_H_ 12 13 #include <linux/kconfig.h> 14 15 #define ACPI_FAN_DEVICE_IDS \ 16 {"INT3404", }, /* Fan */ \ 17 {"INTC1044", }, /* Fan for Tiger Lake generation */ \ 18 {"INTC1048", }, /* Fan for Alder Lake generation */ \ 19 {"INTC1063", }, /* Fan for Meteor Lake generation */ \ 20 {"INTC106A", }, /* Fan for Lunar Lake generation */ \ 21 {"INTC10A2", }, /* Fan for Raptor Lake generation */ \ 22 {"INTC10D6", }, /* Fan for Panther Lake generation */ \ 23 {"PNP0C0B", } /* Generic ACPI fan */ 24 25 #define ACPI_FPS_NAME_LEN 20 26 27 struct acpi_fan_fps { 28 u64 control; 29 u64 trip_point; 30 u64 speed; 31 u64 noise_level; 32 u64 power; 33 char name[ACPI_FPS_NAME_LEN]; 34 struct device_attribute dev_attr; 35 }; 36 37 struct acpi_fan_fif { 38 u8 revision; 39 u8 fine_grain_ctrl; 40 u8 step_size; 41 u8 low_speed_notification; 42 }; 43 44 struct acpi_fan_fst { 45 u64 revision; 46 u64 control; 47 u64 speed; 48 }; 49 50 struct acpi_fan { 51 bool acpi4; 52 struct acpi_fan_fif fif; 53 struct acpi_fan_fps *fps; 54 int fps_count; 55 struct thermal_cooling_device *cdev; 56 struct device_attribute fst_speed; 57 struct device_attribute fine_grain_control; 58 }; 59 60 int acpi_fan_get_fst(struct acpi_device *device, struct acpi_fan_fst *fst); 61 int acpi_fan_create_attributes(struct acpi_device *device); 62 void acpi_fan_delete_attributes(struct acpi_device *device); 63 64 #if IS_REACHABLE(CONFIG_HWMON) 65 int devm_acpi_fan_create_hwmon(struct acpi_device *device); 66 #else 67 static inline int devm_acpi_fan_create_hwmon(struct acpi_device *device) { return 0; }; 68 #endif 69 70 #endif 71