1 // SPDX-License-Identifier: GPL-2.0-or-later
27 #include "i2c-designware-core.h"
28 #include "i2c-ccgx-ucsi.h"
30 #define DRIVER_NAME "i2c-designware-pci"
91 /* NAVI-AMD HCNT/LCNT/SDA hold time */
105 	struct dw_i2c_dev *dev = dev_get_drvdata(&pdev->dev);  in mfld_setup()
107 	switch (pdev->device) {  in mfld_setup()
109 		dev->timings.bus_freq_hz = I2C_MAX_STANDARD_MODE_FREQ;  in mfld_setup()
113 		c->bus_num = pdev->device - 0x817 + 3;  in mfld_setup()
118 		c->bus_num = pdev->device - 0x82C + 0;  in mfld_setup()
121 	return -ENODEV;  in mfld_setup()
132 	switch (PCI_SLOT(pdev->devfn)) {  in mrfld_setup()
134 		c->bus_num = PCI_FUNC(pdev->devfn) + 0 + 1;  in mrfld_setup()
137 		c->bus_num = PCI_FUNC(pdev->devfn) + 4 + 1;  in mrfld_setup()
140 	return -ENODEV;  in mrfld_setup()
155 	struct dw_i2c_dev *dev = dev_get_drvdata(&pdev->dev);  in navi_amd_setup()
157 	dev->flags |= MODEL_AMD_NAVI_GPU;  in navi_amd_setup()
158 	dev->timings.bus_freq_hz = I2C_MAX_STANDARD_MODE_FREQ;  in navi_amd_setup()
164 		.bus_num = -1,
169 		.bus_num = -1,
174 		.bus_num = -1,
178 		.bus_num = -1,
182 		.bus_num = -1,
186 		.bus_num = -1,
190 		.bus_num = -1,
201 	i_dev->disable(i_dev);  in i2c_dw_pci_runtime_suspend()
209 	i2c_mark_adapter_suspended(&i_dev->adapter);  in i2c_dw_pci_suspend()
218 	return i_dev->init(i_dev);  in i2c_dw_pci_runtime_resume()
228 	i2c_mark_adapter_resumed(&i_dev->adapter);  in i2c_dw_pci_resume()
239 	/* USB-C doesn't power the system */
258 	if (id->driver_data >= ARRAY_SIZE(dw_pci_controllers))  in i2c_dw_pci_probe()
259 		return dev_err_probe(&pdev->dev, -EINVAL,  in i2c_dw_pci_probe()
261 				     id->driver_data);  in i2c_dw_pci_probe()
263 	controller = &dw_pci_controllers[id->driver_data];  in i2c_dw_pci_probe()
267 		return dev_err_probe(&pdev->dev, r,  in i2c_dw_pci_probe()
274 		return dev_err_probe(&pdev->dev, r,  in i2c_dw_pci_probe()
277 	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);  in i2c_dw_pci_probe()
279 		return -ENOMEM;  in i2c_dw_pci_probe()
285 	dev->get_clk_rate_khz = controller->get_clk_rate_khz;  in i2c_dw_pci_probe()
286 	dev->base = pcim_iomap_table(pdev)[0];  in i2c_dw_pci_probe()
287 	dev->dev = &pdev->dev;  in i2c_dw_pci_probe()
288 	dev->irq = pci_irq_vector(pdev, 0);  in i2c_dw_pci_probe()
289 	dev->flags |= controller->flags;  in i2c_dw_pci_probe()
291 	t = &dev->timings;  in i2c_dw_pci_probe()
292 	i2c_parse_fw_timings(&pdev->dev, t, false);  in i2c_dw_pci_probe()
296 	if (controller->setup) {  in i2c_dw_pci_probe()
297 		r = controller->setup(pdev, controller);  in i2c_dw_pci_probe()
306 	if (has_acpi_companion(&pdev->dev))  in i2c_dw_pci_probe()
307 		i2c_dw_acpi_configure(&pdev->dev);  in i2c_dw_pci_probe()
317 	if (controller->scl_sda_cfg) {  in i2c_dw_pci_probe()
318 		cfg = controller->scl_sda_cfg;  in i2c_dw_pci_probe()
319 		dev->ss_hcnt = cfg->ss_hcnt;  in i2c_dw_pci_probe()
320 		dev->fs_hcnt = cfg->fs_hcnt;  in i2c_dw_pci_probe()
321 		dev->ss_lcnt = cfg->ss_lcnt;  in i2c_dw_pci_probe()
322 		dev->fs_lcnt = cfg->fs_lcnt;  in i2c_dw_pci_probe()
323 		dev->sda_hold_time = cfg->sda_hold;  in i2c_dw_pci_probe()
326 	adap = &dev->adapter;  in i2c_dw_pci_probe()
327 	adap->owner = THIS_MODULE;  in i2c_dw_pci_probe()
328 	adap->class = 0;  in i2c_dw_pci_probe()
329 	ACPI_COMPANION_SET(&adap->dev, ACPI_COMPANION(&pdev->dev));  in i2c_dw_pci_probe()
330 	adap->nr = controller->bus_num;  in i2c_dw_pci_probe()
338 	if ((dev->flags & MODEL_MASK) == MODEL_AMD_NAVI_GPU) {  in i2c_dw_pci_probe()
339 		dev->slave = i2c_new_ccgx_ucsi(&dev->adapter, dev->irq, &dgpu_node);  in i2c_dw_pci_probe()
340 		if (IS_ERR(dev->slave))  in i2c_dw_pci_probe()
341 			return dev_err_probe(dev->dev, PTR_ERR(dev->slave),  in i2c_dw_pci_probe()
345 	pm_runtime_set_autosuspend_delay(&pdev->dev, 1000);  in i2c_dw_pci_probe()
346 	pm_runtime_use_autosuspend(&pdev->dev);  in i2c_dw_pci_probe()
347 	pm_runtime_put_autosuspend(&pdev->dev);  in i2c_dw_pci_probe()
348 	pm_runtime_allow(&pdev->dev);  in i2c_dw_pci_probe()
357 	dev->disable(dev);  in i2c_dw_pci_remove()
358 	pm_runtime_forbid(&pdev->dev);  in i2c_dw_pci_remove()
359 	pm_runtime_get_noresume(&pdev->dev);  in i2c_dw_pci_remove()
361 	i2c_del_adapter(&dev->adapter);  in i2c_dw_pci_remove()
362 	devm_free_irq(&pdev->dev, dev->irq, dev);  in i2c_dw_pci_remove()
406 	{ PCI_VDEVICE(ATI,  0x7314), navi_amd },
407 	{ PCI_VDEVICE(ATI,  0x73a4), navi_amd },
408 	{ PCI_VDEVICE(ATI,  0x73e4), navi_amd },
409 	{ PCI_VDEVICE(ATI,  0x73c4), navi_amd },
410 	{ PCI_VDEVICE(ATI,  0x7444), navi_amd },
411 	{ PCI_VDEVICE(ATI,  0x7464), navi_amd },
428 MODULE_ALIAS("i2c_designware-pci");