1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) ST-Ericsson 2010 - 2013 4 * Author: Martin Persson <martin.persson@stericsson.com> 5 * Hongbo Zhang <hongbo.zhang@linaro.com> 6 */ 7 8 #ifndef _ABX500_H 9 #define _ABX500_H 10 11 #define NUM_SENSORS 5 12 13 struct abx500_temp; 14 15 /* 16 * struct abx500_temp_ops - abx500 chip specific ops 17 * @read_sensor: reads gpadc output 18 * @irq_handler: irq handler 19 * @show_name: hwmon device name 20 * @show_label: hwmon attribute label 21 * @is_visible: is attribute visible 22 */ 23 struct abx500_temp_ops { 24 int (*read_sensor)(struct abx500_temp *, u8, int *); 25 int (*irq_handler)(int, struct abx500_temp *); 26 ssize_t (*show_name)(struct device *, 27 struct device_attribute *, char *); 28 ssize_t (*show_label) (struct device *, 29 struct device_attribute *, char *); 30 int (*is_visible)(struct attribute *, int); 31 }; 32 33 /* 34 * struct abx500_temp - representation of temp mon device 35 * @pdev: platform device 36 * @hwmon_dev: hwmon device 37 * @ops: abx500 chip specific ops 38 * @gpadc_addr: gpadc channel address 39 * @min: sensor temperature min value 40 * @max: sensor temperature max value 41 * @max_hyst: sensor temperature hysteresis value for max limit 42 * @min_alarm: sensor temperature min alarm 43 * @max_alarm: sensor temperature max alarm 44 * @work: delayed work scheduled to monitor temperature periodically 45 * @work_active: True if work is active 46 * @lock: mutex 47 * @monitored_sensors: number of monitored sensors 48 * @plat_data: private usage, usually points to platform specific data 49 */ 50 struct abx500_temp { 51 struct platform_device *pdev; 52 struct device *hwmon_dev; 53 struct abx500_temp_ops ops; 54 u8 gpadc_addr[NUM_SENSORS]; 55 unsigned long min[NUM_SENSORS]; 56 unsigned long max[NUM_SENSORS]; 57 unsigned long max_hyst[NUM_SENSORS]; 58 bool min_alarm[NUM_SENSORS]; 59 bool max_alarm[NUM_SENSORS]; 60 struct delayed_work work; 61 bool work_active; 62 struct mutex lock; 63 int monitored_sensors; 64 void *plat_data; 65 }; 66 67 int abx500_hwmon_init(struct abx500_temp *data); 68 69 #endif /* _ABX500_H */ 70
