1 // SPDX-License-Identifier: GPL-2.0
16 #include <linux/thermal.h>
36 #define VER2_TEMP_LOW_LIMIT	-40000
58 	struct tmu_sensor sensors[];  member
64 	struct imx8mm_tmu *tmu = sensor->priv;  in imx8mm_tmu_get_temp()
67 	val = readl_relaxed(tmu->base + TRITSR) & TRITSR_TEMP0_VAL_MASK;  in imx8mm_tmu_get_temp()
70 		return -EAGAIN;  in imx8mm_tmu_get_temp()
78 	struct imx8mm_tmu *tmu = sensor->priv;  in imx8mp_tmu_get_temp()
82 	val = readl_relaxed(tmu->base + TRITSR);  in imx8mp_tmu_get_temp()
83 	ready = test_bit(probe_status_offset(sensor->hw_id), &val);  in imx8mp_tmu_get_temp()
85 		return -EAGAIN;  in imx8mp_tmu_get_temp()
87 	val = sensor->hw_id ? FIELD_GET(TRITSR_TEMP1_VAL_MASK, val) :  in imx8mp_tmu_get_temp()
94 		return -EAGAIN;  in imx8mp_tmu_get_temp()
101 	struct tmu_sensor *sensor = tz->devdata;  in tmu_get_temp()
102 	struct imx8mm_tmu *tmu = sensor->priv;  in tmu_get_temp()
104 	return tmu->socdata->get_temp(sensor, temp);  in tmu_get_temp()
115 	val = readl_relaxed(tmu->base + TER);  in imx8mm_tmu_enable()
117 	if (tmu->socdata->version == TMU_VER2)  in imx8mm_tmu_enable()
119 	writel_relaxed(val, tmu->base + TER);  in imx8mm_tmu_enable()
126 	val = readl_relaxed(tmu->base + TPS);  in imx8mm_tmu_probe_sel_all()
128 	writel_relaxed(val, tmu->base + TPS);  in imx8mm_tmu_probe_sel_all()
138 	data = of_device_get_match_data(&pdev->dev);  in imx8mm_tmu_probe()
140 	tmu = devm_kzalloc(&pdev->dev, struct_size(tmu, sensors,  in imx8mm_tmu_probe()
141 			   data->num_sensors), GFP_KERNEL);  in imx8mm_tmu_probe()
143 		return -ENOMEM;  in imx8mm_tmu_probe()
145 	tmu->socdata = data;  in imx8mm_tmu_probe()
147 	tmu->base = devm_platform_ioremap_resource(pdev, 0);  in imx8mm_tmu_probe()
148 	if (IS_ERR(tmu->base))  in imx8mm_tmu_probe()
149 		return PTR_ERR(tmu->base);  in imx8mm_tmu_probe()
151 	tmu->clk = devm_clk_get(&pdev->dev, NULL);  in imx8mm_tmu_probe()
152 	if (IS_ERR(tmu->clk))  in imx8mm_tmu_probe()
153 		return dev_err_probe(&pdev->dev, PTR_ERR(tmu->clk),  in imx8mm_tmu_probe()
156 	ret = clk_prepare_enable(tmu->clk);  in imx8mm_tmu_probe()
158 		dev_err(&pdev->dev, "failed to enable tmu clock: %d\n", ret);  in imx8mm_tmu_probe()
165 	for (i = 0; i < data->num_sensors; i++) {  in imx8mm_tmu_probe()
166 		tmu->sensors[i].priv = tmu;  in imx8mm_tmu_probe()
167 		tmu->sensors[i].tzd =  in imx8mm_tmu_probe()
168 			devm_thermal_of_zone_register(&pdev->dev, i,  in imx8mm_tmu_probe()
169 						      &tmu->sensors[i],  in imx8mm_tmu_probe()
171 		if (IS_ERR(tmu->sensors[i].tzd)) {  in imx8mm_tmu_probe()
172 			ret = PTR_ERR(tmu->sensors[i].tzd);  in imx8mm_tmu_probe()
173 			dev_err(&pdev->dev,  in imx8mm_tmu_probe()
174 				"failed to register thermal zone sensor[%d]: %d\n",  in imx8mm_tmu_probe()
178 		tmu->sensors[i].hw_id = i;  in imx8mm_tmu_probe()
184 	if (tmu->socdata->version == TMU_VER2)  in imx8mm_tmu_probe()
193 	clk_disable_unprepare(tmu->clk);  in imx8mm_tmu_probe()
204 	clk_disable_unprepare(tmu->clk);  in imx8mm_tmu_remove()
223 	{ .compatible = "fsl,imx8mm-tmu", .data = &imx8mm_tmu_data, },
224 	{ .compatible = "fsl,imx8mp-tmu", .data = &imx8mp_tmu_data, },
240 MODULE_DESCRIPTION("i.MX8MM Thermal Monitor Unit driver");