1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * ST Thermal Sensor Driver for syscfg based sensors.
6  * Copyright (C) 2003-2014 STMicroelectronics (R&D) Limited
16 #define STIH415_SYSCFG_FRONT(num)		((num - 100) * 4)
19 #define STIH415_SYSCFG_MPE(num)			((num - 600) * 4)
24 #define STIH416_SYSCFG_FRONT(num)		((num - 1000) * 4)
30 #define STID127_SYSCFG_CPU(num)			((num - 700) * 4)
62 /* Private OPs for System Configuration Register based thermal sensors */
63 static int st_syscfg_power_ctrl(struct st_thermal_sensor *sensor,  in st_syscfg_power_ctrl()  argument
66 	return regmap_field_write(sensor->pwr, power_state);  in st_syscfg_power_ctrl()
69 static int st_syscfg_alloc_regfields(struct st_thermal_sensor *sensor)  in st_syscfg_alloc_regfields()  argument
71 	struct device *dev = sensor->dev;  in st_syscfg_alloc_regfields()
73 	sensor->pwr = devm_regmap_field_alloc(dev, sensor->regmap,  in st_syscfg_alloc_regfields()
74 					sensor->cdata->reg_fields[TEMP_PWR]);  in st_syscfg_alloc_regfields()
76 	if (IS_ERR(sensor->pwr)) {  in st_syscfg_alloc_regfields()
78 		return PTR_ERR(sensor->pwr);  in st_syscfg_alloc_regfields()
84 static int st_syscfg_regmap_init(struct st_thermal_sensor *sensor)  in st_syscfg_regmap_init()  argument
86 	sensor->regmap =  in st_syscfg_regmap_init()
87 		syscon_regmap_lookup_by_compatible(sensor->cdata->sys_compat);  in st_syscfg_regmap_init()
88 	if (IS_ERR(sensor->regmap)) {  in st_syscfg_regmap_init()
89 		dev_err(sensor->dev, "failed to find syscfg regmap\n");  in st_syscfg_regmap_init()
90 		return PTR_ERR(sensor->regmap);  in st_syscfg_regmap_init()
102 /* Compatible device data for stih415 sas thermal sensor */
104 	.sys_compat		= "st,stih415-front-syscfg",
112 /* Compatible device data for stih415 mpe thermal sensor */
114 	.sys_compat		= "st,stih415-system-syscfg",
118 	.temp_adjust_val	= -103,
122 /* Compatible device data for stih416 sas thermal sensor */
124 	.sys_compat		= "st,stih416-front-syscfg",
132 /* Compatible device data for stid127 thermal sensor */
134 	.sys_compat		= "st,stid127-cpu-syscfg",
138 	.temp_adjust_val	= -103,
143 	{ .compatible = "st,stih415-sas-thermal", .data = &st_415sas_cdata },
144 	{ .compatible = "st,stih415-mpe-thermal", .data = &st_415mpe_cdata },
145 	{ .compatible = "st,stih416-sas-thermal", .data = &st_416sas_cdata },
146 	{ .compatible = "st,stid127-thermal",     .data = &st_127_cdata },
173 MODULE_DESCRIPTION("STMicroelectronics STi SoC Thermal Sensor Driver");