52 static int stm32_dac_core_hw_start(struct device *dev)  in stm32_dac_core_hw_start()  argument
54 	struct stm32_dac_common *common = dev_get_drvdata(dev);  in stm32_dac_core_hw_start()
60 		dev_err(dev, "vref enable failed: %d\n", ret);  in stm32_dac_core_hw_start()
66 		dev_err(dev, "pclk enable failed: %d\n", ret);  in stm32_dac_core_hw_start()
78 static void stm32_dac_core_hw_stop(struct device *dev)  in stm32_dac_core_hw_stop()  argument
80 	struct stm32_dac_common *common = dev_get_drvdata(dev);  in stm32_dac_core_hw_stop()
89 	struct device *dev = &pdev->dev;  in stm32_dac_probe()  local
97 	if (!dev->of_node)  in stm32_dac_probe()
100 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);  in stm32_dac_probe()
106 		of_match_device(dev->driver->of_match_table, dev)->data;  in stm32_dac_probe()
112 	regmap = devm_regmap_init_mmio_clk(dev, "pclk", mmio,  in stm32_dac_probe()
118 	priv->pclk = devm_clk_get(dev, "pclk");  in stm32_dac_probe()
120 		return dev_err_probe(dev, PTR_ERR(priv->pclk), "pclk get failed\n");  in stm32_dac_probe()
122 	priv->vref = devm_regulator_get(dev, "vref");  in stm32_dac_probe()
124 		return dev_err_probe(dev, PTR_ERR(priv->vref), "vref get failed\n");  in stm32_dac_probe()
126 	pm_runtime_get_noresume(dev);  in stm32_dac_probe()
127 	pm_runtime_set_active(dev);  in stm32_dac_probe()
128 	pm_runtime_enable(dev);  in stm32_dac_probe()
130 	ret = stm32_dac_core_hw_start(dev);  in stm32_dac_probe()
136 		dev_err(dev, "vref get voltage failed, %d\n", ret);  in stm32_dac_probe()
140 	dev_dbg(dev, "vref+=%dmV\n", priv->common.vref_mv);  in stm32_dac_probe()
142 	rst = devm_reset_control_get_optional_exclusive(dev, NULL);  in stm32_dac_probe()
145 			ret = dev_err_probe(dev, PTR_ERR(rst), "reset get failed\n");  in stm32_dac_probe()
166 	ret = of_platform_populate(pdev->dev.of_node, NULL, NULL, dev);  in stm32_dac_probe()
168 		dev_err(dev, "failed to populate DT children\n");  in stm32_dac_probe()
172 	pm_runtime_put(dev);  in stm32_dac_probe()
177 	stm32_dac_core_hw_stop(dev);  in stm32_dac_probe()
179 	pm_runtime_disable(dev);  in stm32_dac_probe()
180 	pm_runtime_set_suspended(dev);  in stm32_dac_probe()
181 	pm_runtime_put_noidle(dev);  in stm32_dac_probe()
188 	pm_runtime_get_sync(&pdev->dev);  in stm32_dac_remove()
189 	of_platform_depopulate(&pdev->dev);  in stm32_dac_remove()
190 	stm32_dac_core_hw_stop(&pdev->dev);  in stm32_dac_remove()
191 	pm_runtime_disable(&pdev->dev);  in stm32_dac_remove()
192 	pm_runtime_set_suspended(&pdev->dev);  in stm32_dac_remove()
193 	pm_runtime_put_noidle(&pdev->dev);  in stm32_dac_remove()
198 static int stm32_dac_core_resume(struct device *dev)  in stm32_dac_core_resume()  argument
200 	struct stm32_dac_common *common = dev_get_drvdata(dev);  in stm32_dac_core_resume()
213 	return pm_runtime_force_resume(dev);  in stm32_dac_core_resume()
216 static int stm32_dac_core_runtime_suspend(struct device *dev)  in stm32_dac_core_runtime_suspend()  argument
218 	stm32_dac_core_hw_stop(dev);  in stm32_dac_core_runtime_suspend()
223 static int stm32_dac_core_runtime_resume(struct device *dev)  in stm32_dac_core_runtime_resume()  argument
225 	return stm32_dac_core_hw_start(dev);  in stm32_dac_core_runtime_resume()