1 // SPDX-License-Identifier: GPL-2.0+
3  * Copyright 2018-2020 NXP.
6 #include <dt-bindings/firmware/imx/rsrc.h>
14 #include <linux/thermal.h>
50 	struct imx_sc_sensor *sensor = tz->devdata;  in imx_sc_thermal_get_temp()  local
53 	msg.data.req.resource_id = sensor->resource_id;  in imx_sc_thermal_get_temp()
56 	hdr->ver = IMX_SC_RPC_VERSION;  in imx_sc_thermal_get_temp()
57 	hdr->svc = IMX_SC_RPC_SVC_MISC;  in imx_sc_thermal_get_temp()
58 	hdr->func = IMX_SC_MISC_FUNC_GET_TEMP;  in imx_sc_thermal_get_temp()
59 	hdr->size = 2;  in imx_sc_thermal_get_temp()
63 		dev_err(&sensor->tzd->device, "read temp sensor %d failed, ret %d\n",  in imx_sc_thermal_get_temp()
64 			sensor->resource_id, ret);  in imx_sc_thermal_get_temp()
79 	struct imx_sc_sensor *sensor;  in imx_sc_thermal_probe()  local
87 	resource_id = of_device_get_match_data(&pdev->dev);  in imx_sc_thermal_probe()
89 		return -EINVAL;  in imx_sc_thermal_probe()
93 		sensor = devm_kzalloc(&pdev->dev, sizeof(*sensor), GFP_KERNEL);  in imx_sc_thermal_probe()
94 		if (!sensor)  in imx_sc_thermal_probe()
95 			return -ENOMEM;  in imx_sc_thermal_probe()
97 		sensor->resource_id = resource_id[i];  in imx_sc_thermal_probe()
99 		sensor->tzd = devm_thermal_of_zone_register(&pdev->dev, sensor->resource_id,  in imx_sc_thermal_probe()
100 							    sensor, &imx_sc_thermal_ops);  in imx_sc_thermal_probe()
101 		if (IS_ERR(sensor->tzd)) {  in imx_sc_thermal_probe()
104 			 * sensor pointer, otherwise we endup with a  in imx_sc_thermal_probe()
105 			 * use-after-free error  in imx_sc_thermal_probe()
107 			ret = PTR_ERR(sensor->tzd);  in imx_sc_thermal_probe()
109 			devm_kfree(&pdev->dev, sensor);  in imx_sc_thermal_probe()
112 			 * The thermal framework notifies us there is  in imx_sc_thermal_probe()
113 			 * no thermal zone description for such a  in imx_sc_thermal_probe()
114 			 * sensor id  in imx_sc_thermal_probe()
116 			if (ret == -ENODEV)  in imx_sc_thermal_probe()
119 			dev_err(&pdev->dev, "failed to register thermal zone\n");  in imx_sc_thermal_probe()
123 		if (devm_thermal_add_hwmon_sysfs(sensor->tzd))  in imx_sc_thermal_probe()
124 			dev_warn(&pdev->dev, "failed to add hwmon sysfs attributes\n");  in imx_sc_thermal_probe()
135 static int imx_sc_sensors[] = { IMX_SC_R_SYSTEM, IMX_SC_R_PMIC_0, -1 };
138 	{ .compatible = "fsl,imx-sc-thermal", .data =  imx_sc_sensors },
147 			.name = "imx-sc-thermal",
154 MODULE_DESCRIPTION("Thermal driver for NXP i.MX SoCs with system controller");