1 // SPDX-License-Identifier: GPL-2.0-only
18 /* Power Mode: 0->low 1->high */
42  * struct zx2967_thermal_priv - zx2967 thermal sensor private structure
46  * @clk_apb: apb clk structure
47  * @regs: pointer to base address of the thermal sensor
67 	if (!priv->tzd)  in zx2967_thermal_get_temp()
68 		return -EAGAIN;  in zx2967_thermal_get_temp()
70 	regs = priv->regs;  in zx2967_thermal_get_temp()
71 	mutex_lock(&priv->lock);  in zx2967_thermal_get_temp()
91 		dev_err(priv->dev, "Thermal sensor data timeout\n");  in zx2967_thermal_get_temp()
106 	*temp = DIV_ROUND_CLOSEST(((s32)val + priv->tzd->tzp->offset) * 1000,  in zx2967_thermal_get_temp()
107 				  priv->tzd->tzp->slope);  in zx2967_thermal_get_temp()
110 	mutex_unlock(&priv->lock);  in zx2967_thermal_get_temp()
124 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);  in zx2967_thermal_probe()
126 		return -ENOMEM;  in zx2967_thermal_probe()
129 	priv->regs = devm_ioremap_resource(&pdev->dev, res);  in zx2967_thermal_probe()
130 	if (IS_ERR(priv->regs))  in zx2967_thermal_probe()
131 		return PTR_ERR(priv->regs);  in zx2967_thermal_probe()
133 	priv->clk_topcrm = devm_clk_get(&pdev->dev, "topcrm");  in zx2967_thermal_probe()
134 	if (IS_ERR(priv->clk_topcrm)) {  in zx2967_thermal_probe()
135 		ret = PTR_ERR(priv->clk_topcrm);  in zx2967_thermal_probe()
136 		dev_err(&pdev->dev, "failed to get topcrm clock: %d\n", ret);  in zx2967_thermal_probe()
140 	ret = clk_prepare_enable(priv->clk_topcrm);  in zx2967_thermal_probe()
142 		dev_err(&pdev->dev, "failed to enable topcrm clock: %d\n",  in zx2967_thermal_probe()
147 	priv->clk_apb = devm_clk_get(&pdev->dev, "apb");  in zx2967_thermal_probe()
148 	if (IS_ERR(priv->clk_apb)) {  in zx2967_thermal_probe()
149 		ret = PTR_ERR(priv->clk_apb);  in zx2967_thermal_probe()
150 		dev_err(&pdev->dev, "failed to get apb clock: %d\n", ret);  in zx2967_thermal_probe()
154 	ret = clk_prepare_enable(priv->clk_apb);  in zx2967_thermal_probe()
156 		dev_err(&pdev->dev, "failed to enable apb clock: %d\n",  in zx2967_thermal_probe()
161 	mutex_init(&priv->lock);  in zx2967_thermal_probe()
162 	priv->tzd = thermal_zone_of_sensor_register(&pdev->dev,  in zx2967_thermal_probe()
165 	if (IS_ERR(priv->tzd)) {  in zx2967_thermal_probe()
166 		ret = PTR_ERR(priv->tzd);  in zx2967_thermal_probe()
167 		dev_err(&pdev->dev, "failed to register sensor: %d\n", ret);  in zx2967_thermal_probe()
171 	if (priv->tzd->tzp->slope == 0) {  in zx2967_thermal_probe()
172 		thermal_zone_of_sensor_unregister(&pdev->dev, priv->tzd);  in zx2967_thermal_probe()
173 		dev_err(&pdev->dev, "coefficients of sensor is invalid\n");  in zx2967_thermal_probe()
174 		ret = -EINVAL;  in zx2967_thermal_probe()
178 	priv->dev = &pdev->dev;  in zx2967_thermal_probe()
184 	clk_disable_unprepare(priv->clk_apb);  in zx2967_thermal_probe()
186 	clk_disable_unprepare(priv->clk_topcrm);  in zx2967_thermal_probe()
194 	thermal_zone_of_sensor_unregister(&pdev->dev, priv->tzd);  in zx2967_thermal_exit()
195 	clk_disable_unprepare(priv->clk_topcrm);  in zx2967_thermal_exit()
196 	clk_disable_unprepare(priv->clk_apb);  in zx2967_thermal_exit()
202 	{ .compatible = "zte,zx296718-thermal" },
212 	if (priv && priv->clk_topcrm)  in zx2967_thermal_suspend()
213 		clk_disable_unprepare(priv->clk_topcrm);  in zx2967_thermal_suspend()
215 	if (priv && priv->clk_apb)  in zx2967_thermal_suspend()
216 		clk_disable_unprepare(priv->clk_apb);  in zx2967_thermal_suspend()
226 	error = clk_prepare_enable(priv->clk_topcrm);  in zx2967_thermal_resume()
230 	error = clk_prepare_enable(priv->clk_apb);  in zx2967_thermal_resume()
232 		clk_disable_unprepare(priv->clk_topcrm);  in zx2967_thermal_resume()