diff options
| author | Hongbo Zhang <hongbo.zhang@linaro.org> | 2013-04-03 20:18:12 +0800 |
|---|---|---|
| committer | Anton Vorontsov <anton@enomsg.org> | 2013-04-16 18:27:52 -0700 |
| commit | 0bbb06ed564d211d10eae12bdb423fce6178468f (patch) | |
| tree | 5150a86a4ffe8cc225fb76f9a3b3cd04d730407c /drivers/hwmon/abx500.h | |
| parent | ea2be6f21071b4af3b765a0f228be2bef08515e9 (diff) | |
hwmon: Add ST-Ericsson ABX500 hwmon driver
Each of ST-Ericsson X500 chip set series consists of both ABX500 and DBX500
chips. This is ABX500 hwmon driver, where the abx500.c is a common layer for
all ABX500s, and the ab8500.c is specific for AB8500 chip. Under this designed
structure, other chip specific files can be added simply using the same common
layer abx500.c.
Signed-off-by: Hongbo Zhang <hongbo.zhang@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
Diffstat (limited to 'drivers/hwmon/abx500.h')
| -rw-r--r-- | drivers/hwmon/abx500.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/drivers/hwmon/abx500.h b/drivers/hwmon/abx500.h new file mode 100644 index 000000000000..9b295e684d0e --- /dev/null +++ b/drivers/hwmon/abx500.h @@ -0,0 +1,69 @@ +/* + * Copyright (C) ST-Ericsson 2010 - 2013 + * License terms: GNU General Public License v2 + * Author: Martin Persson <martin.persson@stericsson.com> + * Hongbo Zhang <hongbo.zhang@linaro.com> + */ + +#ifndef _ABX500_H +#define _ABX500_H + +#define NUM_SENSORS 5 + +struct abx500_temp; + +/* + * struct abx500_temp_ops - abx500 chip specific ops + * @read_sensor: reads gpadc output + * @irq_handler: irq handler + * @show_name: hwmon device name + * @show_label: hwmon attribute label + * @is_visible: is attribute visible + */ +struct abx500_temp_ops { + int (*read_sensor)(struct abx500_temp *, u8, int *); + int (*irq_handler)(int, struct abx500_temp *); + ssize_t (*show_name)(struct device *, + struct device_attribute *, char *); + ssize_t (*show_label) (struct device *, + struct device_attribute *, char *); + int (*is_visible)(struct attribute *, int); +}; + +/* + * struct abx500_temp - representation of temp mon device + * @pdev: platform device + * @hwmon_dev: hwmon device + * @ops: abx500 chip specific ops + * @gpadc_addr: gpadc channel address + * @min: sensor temperature min value + * @max: sensor temperature max value + * @max_hyst: sensor temperature hysteresis value for max limit + * @min_alarm: sensor temperature min alarm + * @max_alarm: sensor temperature max alarm + * @work: delayed work scheduled to monitor temperature periodically + * @work_active: True if work is active + * @lock: mutex + * @monitored_sensors: number of monitored sensors + * @plat_data: private usage, usually points to platform specific data + */ +struct abx500_temp { + struct platform_device *pdev; + struct device *hwmon_dev; + struct abx500_temp_ops ops; + u8 gpadc_addr[NUM_SENSORS]; + unsigned long min[NUM_SENSORS]; + unsigned long max[NUM_SENSORS]; + unsigned long max_hyst[NUM_SENSORS]; + bool min_alarm[NUM_SENSORS]; + bool max_alarm[NUM_SENSORS]; + struct delayed_work work; + bool work_active; + struct mutex lock; + int monitored_sensors; + void *plat_data; +}; + +int abx500_hwmon_init(struct abx500_temp *data); + +#endif /* _ABX500_H */ |