71 static void dw_i2c_acpi_params(struct platform_device *pdev, char method[],  in dw_i2c_acpi_params()  argument
75 	acpi_handle handle = ACPI_HANDLE(&pdev->dev);  in dw_i2c_acpi_params()
97 static int dw_i2c_acpi_configure(struct platform_device *pdev)  in dw_i2c_acpi_configure()  argument
99 	struct dw_i2c_dev *dev = platform_get_drvdata(pdev);  in dw_i2c_acpi_configure()
110 	dw_i2c_acpi_params(pdev, "SSCN", &dev->ss_hcnt, &dev->ss_lcnt, NULL);  in dw_i2c_acpi_configure()
111 	dw_i2c_acpi_params(pdev, "FMCN", &dev->fs_hcnt, &dev->fs_lcnt,  in dw_i2c_acpi_configure()
119 	id = acpi_match_device(pdev->dev.driver->acpi_match_table, &pdev->dev);  in dw_i2c_acpi_configure()
121 		clk_register_fixed_rate(&pdev->dev, dev_name(&pdev->dev), NULL,  in dw_i2c_acpi_configure()
127 static void dw_i2c_acpi_unconfigure(struct platform_device *pdev)  in dw_i2c_acpi_unconfigure()  argument
129 	struct dw_i2c_dev *dev = platform_get_drvdata(pdev);  in dw_i2c_acpi_unconfigure()
132 	id = acpi_match_device(pdev->dev.driver->acpi_match_table, &pdev->dev);  in dw_i2c_acpi_unconfigure()
149 static inline int dw_i2c_acpi_configure(struct platform_device *pdev)  in dw_i2c_acpi_configure()  argument
153 static inline void dw_i2c_acpi_unconfigure(struct platform_device *pdev) { }  in dw_i2c_acpi_unconfigure()  argument
156 static int dw_i2c_probe(struct platform_device *pdev)  in dw_i2c_probe()  argument
165 	irq = platform_get_irq(pdev, 0);  in dw_i2c_probe()
169 	dev = devm_kzalloc(&pdev->dev, sizeof(struct dw_i2c_dev), GFP_KERNEL);  in dw_i2c_probe()
173 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);  in dw_i2c_probe()
174 	dev->base = devm_ioremap_resource(&pdev->dev, mem);  in dw_i2c_probe()
180 	dev->dev = &pdev->dev;  in dw_i2c_probe()
182 	platform_set_drvdata(pdev, dev);  in dw_i2c_probe()
187 	if (has_acpi_companion(&pdev->dev)) {  in dw_i2c_probe()
188 		dw_i2c_acpi_configure(pdev);  in dw_i2c_probe()
189 	} else if (pdev->dev.of_node) {  in dw_i2c_probe()
190 		of_property_read_u32(pdev->dev.of_node,  in dw_i2c_probe()
193 		of_property_read_u32(pdev->dev.of_node,  in dw_i2c_probe()
196 		of_property_read_u32(pdev->dev.of_node,  in dw_i2c_probe()
200 		of_property_read_u32(pdev->dev.of_node, "clock-frequency",  in dw_i2c_probe()
207 			dev_err(&pdev->dev, "Only 100kHz and 400kHz supported");  in dw_i2c_probe()
211 		pdata = dev_get_platdata(&pdev->dev);  in dw_i2c_probe()
234 	dev->clk = devm_clk_get(&pdev->dev, NULL);  in dw_i2c_probe()
252 		dev->adapter.nr = pdev->id;  in dw_i2c_probe()
259 	r = devm_request_irq(&pdev->dev, dev->irq, i2c_dw_isr, IRQF_SHARED,  in dw_i2c_probe()
260 			pdev->name, dev);  in dw_i2c_probe()
262 		dev_err(&pdev->dev, "failure requesting irq %i\n", dev->irq);  in dw_i2c_probe()
273 	adap->dev.parent = &pdev->dev;  in dw_i2c_probe()
274 	adap->dev.of_node = pdev->dev.of_node;  in dw_i2c_probe()
277 		pm_runtime_forbid(&pdev->dev);  in dw_i2c_probe()
279 		pm_runtime_set_autosuspend_delay(&pdev->dev, 1000);  in dw_i2c_probe()
280 		pm_runtime_use_autosuspend(&pdev->dev);  in dw_i2c_probe()
281 		pm_runtime_set_active(&pdev->dev);  in dw_i2c_probe()
282 		pm_runtime_enable(&pdev->dev);  in dw_i2c_probe()
287 		dev_err(&pdev->dev, "failure adding adapter\n");  in dw_i2c_probe()
288 		pm_runtime_disable(&pdev->dev);  in dw_i2c_probe()
295 static int dw_i2c_remove(struct platform_device *pdev)  in dw_i2c_remove()  argument
297 	struct dw_i2c_dev *dev = platform_get_drvdata(pdev);  in dw_i2c_remove()
299 	pm_runtime_get_sync(&pdev->dev);  in dw_i2c_remove()
305 	pm_runtime_put(&pdev->dev);  in dw_i2c_remove()
306 	pm_runtime_disable(&pdev->dev);  in dw_i2c_remove()
308 	if (has_acpi_companion(&pdev->dev))  in dw_i2c_remove()
309 		dw_i2c_acpi_unconfigure(pdev);  in dw_i2c_remove()
325 	struct platform_device *pdev = to_platform_device(dev);  in dw_i2c_suspend()  local
326 	struct dw_i2c_dev *i_dev = platform_get_drvdata(pdev);  in dw_i2c_suspend()
336 	struct platform_device *pdev = to_platform_device(dev);  in dw_i2c_resume()  local
337 	struct dw_i2c_dev *i_dev = platform_get_drvdata(pdev);  in dw_i2c_resume()