Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / thermal / st / st_thermal.h

diff --git a/kernel/drivers/thermal/st/st_thermal.h b/kernel/drivers/thermal/st/st_thermal.h
new file mode 100644 (file)
index 0000000..fecafbe
--- /dev/null
+++ b/kernel/drivers/thermal/st/st_thermal.h
@@ -0,0 +1,104 @@
+/*
+ * ST Thermal Sensor Driver for STi series of SoCs
+ * Author: Ajit Pal Singh <ajitpal.singh@st.com>
+ *
+ * Copyright (C) 2003-2014 STMicroelectronics (R&D) Limited
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __STI_THERMAL_SYSCFG_H
+#define __STI_THERMAL_SYSCFG_H
+
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/thermal.h>
+
+enum st_thermal_regfield_ids {
+       INT_THRESH_HI = 0, /* Top two regfield IDs are mutually exclusive */
+       TEMP_PWR = 0,
+       DCORRECT,
+       OVERFLOW,
+       DATA,
+       INT_ENABLE,
+
+       MAX_REGFIELDS
+};
+
+/* Thermal sensor power states */
+enum st_thermal_power_state {
+       POWER_OFF = 0,
+       POWER_ON
+};
+
+struct st_thermal_sensor;
+
+/**
+ * Description of private thermal sensor ops.
+ *
+ * @power_ctrl:                Function for powering on/off a sensor. Clock to the
+ *                     sensor is also controlled from this function.
+ * @alloc_regfields:   Allocate regmap register fields, specific to a sensor.
+ * @do_memmap_regmap:  Memory map the thermal register space and init regmap
+ *                     instance or find regmap instance.
+ * @register_irq:      Register an interrupt handler for a sensor.
+ */
+struct st_thermal_sensor_ops {
+       int (*power_ctrl)(struct st_thermal_sensor *, enum st_thermal_power_state);
+       int (*alloc_regfields)(struct st_thermal_sensor *);
+       int (*regmap_init)(struct st_thermal_sensor *);
+       int (*register_enable_irq)(struct st_thermal_sensor *);
+       int (*enable_irq)(struct st_thermal_sensor *);
+};
+
+/**
+ * Description of thermal driver compatible data.
+ *
+ * @reg_fields:                Pointer to the regfields array for a sensor.
+ * @sys_compat:                Pointer to the syscon node compatible string.
+ * @ops:               Pointer to private thermal ops for a sensor.
+ * @calibration_val:   Default calibration value to be written to the DCORRECT
+ *                     register field for a sensor.
+ * @temp_adjust_val:   Value to be added/subtracted from the data read from
+ *                     the sensor. If value needs to be added please provide a
+ *                     positive value and if it is to be subtracted please
+ *                     provide a negative value.
+ * @crit_temp:                 The temperature beyond which the SoC should be shutdown
+ *                     to prevent damage.
+ */
+struct st_thermal_compat_data {
+       char *sys_compat;
+       const struct reg_field *reg_fields;
+       const struct st_thermal_sensor_ops *ops;
+       unsigned int calibration_val;
+       int temp_adjust_val;
+       int crit_temp;
+};
+
+struct st_thermal_sensor {
+       struct device *dev;
+       struct thermal_zone_device *thermal_dev;
+       const struct st_thermal_sensor_ops *ops;
+       const struct st_thermal_compat_data *cdata;
+       struct clk *clk;
+       struct regmap *regmap;
+       struct regmap_field *pwr;
+       struct regmap_field *dcorrect;
+       struct regmap_field *overflow;
+       struct regmap_field *temp_data;
+       struct regmap_field *int_thresh_hi;
+       struct regmap_field *int_enable;
+       int irq;
+       void __iomem *mmio_base;
+};
+
+extern int st_thermal_register(struct platform_device *pdev,
+                              const struct of_device_id *st_thermal_of_match);
+extern int st_thermal_unregister(struct platform_device *pdev);
+extern const struct dev_pm_ops st_thermal_pm_ops;
+
+#endif /* __STI_RESET_SYSCFG_H */