1 // SPDX-License-Identifier: GPL-2.0
9 #include <linux/thermal.h>
26 	struct thermal_mmio *sensor =  in thermal_mmio_get_temperature()  local
29 	t = sensor->read_mmio(sensor->mmio_base) & sensor->mask;  in thermal_mmio_get_temperature()
30 	t *= sensor->factor;  in thermal_mmio_get_temperature()
44 	struct thermal_mmio *sensor;  in thermal_mmio_probe()  local
46 				struct thermal_mmio *sensor);  in thermal_mmio_probe()
51 	sensor = devm_kzalloc(&pdev->dev, sizeof(*sensor), GFP_KERNEL);  in thermal_mmio_probe()
52 	if (!sensor)  in thermal_mmio_probe()
53 		return -ENOMEM;  in thermal_mmio_probe()
56 	sensor->mmio_base = devm_ioremap_resource(&pdev->dev, resource);  in thermal_mmio_probe()
57 	if (IS_ERR(sensor->mmio_base)) {  in thermal_mmio_probe()
58 		dev_err(&pdev->dev, "failed to ioremap memory (%ld)\n",  in thermal_mmio_probe()
59 			PTR_ERR(sensor->mmio_base));  in thermal_mmio_probe()
60 		return PTR_ERR(sensor->mmio_base);  in thermal_mmio_probe()
63 	sensor_init_func = device_get_match_data(&pdev->dev);  in thermal_mmio_probe()
65 		ret = sensor_init_func(pdev, sensor);  in thermal_mmio_probe()
67 			dev_err(&pdev->dev,  in thermal_mmio_probe()
68 				"failed to initialize sensor (%d)\n",  in thermal_mmio_probe()
74 	thermal_zone = devm_thermal_zone_of_sensor_register(&pdev->dev,  in thermal_mmio_probe()
76 							    sensor,  in thermal_mmio_probe()
79 		dev_err(&pdev->dev,  in thermal_mmio_probe()
80 			"failed to register sensor (%ld)\n",  in thermal_mmio_probe()
85 	thermal_mmio_get_temperature(sensor, &temperature);  in thermal_mmio_probe()
86 	dev_info(&pdev->dev,  in thermal_mmio_probe()
87 		 "thermal mmio sensor %s registered, current temperature: %d\n",  in thermal_mmio_probe()
88 		 pdev->name, temperature);  in thermal_mmio_probe()
94 			   struct thermal_mmio *sensor)  in al_thermal_init()  argument
96 	sensor->read_mmio = thermal_mmio_readb;  in al_thermal_init()
97 	sensor->mask = 0xff;  in al_thermal_init()
98 	sensor->factor = 1000;  in al_thermal_init()
104 	{ .compatible = "amazon,al-thermal", .data = al_thermal_init},
112 		.name = "thermal-mmio",
120 MODULE_DESCRIPTION("Thermal MMIO Driver");