1 // SPDX-License-Identifier: GPL-2.0+
3  * AMD ISP platform driver for sensor i2-client instantiation
22 #define AMD_ISP_PLAT_DRV_NAME		"amd-isp4"
92 	PROPERTY_ENTRY_REF_ARRAY("remote-endpoint", isp4_refs),
107 	PROPERTY_ENTRY_U32("clock-frequency", 1 * HZ_PER_MHZ),
120 	PROPERTY_ENTRY_U32("clock-frequency", 24 * HZ_PER_MHZ),
156 /* OV05C10 supports one single link frequency */
161 /* OV05C10 supports only 2-lane configuration */
169 	PROPERTY_ENTRY_U32("bus-type", 4),
170 	PROPERTY_ENTRY_U32_ARRAY_LEN("data-lanes", ov05c10_data_lanes,
172 	PROPERTY_ENTRY_U64_ARRAY_LEN("link-frequencies", ov05c10_link_freqs,
174 	PROPERTY_ENTRY_REF_ARRAY("remote-endpoint", ov05c10_refs),
200  *					  remote-endpoint = &OMNI5C10_ep;
207  *	  clock-frequency = 1 MHz;
209  *		  clock-frequency = 24MHz;
213  *					  bus-type = 4;
214  *					  data-lanes = <1 2>;
215  *					  link-frequencies = 900MHz;
216  *					  remote-endpoint = &isp4_mipi1;
256 	return !strcmp(adap->name, AMDISP_I2C_ADAP_NAME);  in is_isp_i2c_adapter()
262 	struct i2c_board_info *info = &isp4_platform->board_info;  in instantiate_isp_i2c_client()
265 	guard(mutex)(&isp4_platform->lock);  in instantiate_isp_i2c_client()
267 	if (isp4_platform->i2c_dev)  in instantiate_isp_i2c_client()
272 		dev_err(&adap->dev, "error %pe registering isp i2c_client\n", i2c_dev);  in instantiate_isp_i2c_client()
275 	isp4_platform->i2c_dev = i2c_dev;  in instantiate_isp_i2c_client()
300 		scoped_guard(mutex, &isp4_platform->lock) {  in isp_i2c_bus_notify()
301 			if (isp4_platform->i2c_dev == client) {  in isp_i2c_bus_notify()
302 				dev_dbg(&client->adapter->dev, "amdisp i2c_client removed\n");  in isp_i2c_bus_notify()
303 				isp4_platform->i2c_dev = NULL;  in isp_i2c_bus_notify()
322 		return ERR_PTR(-ENOMEM);  in prepare_amdisp_platform()
324 	ret = devm_mutex_init(dev, &isp4_platform->lock);  in prepare_amdisp_platform()
328 	isp4_platform->board_info.dev_name = src->board_info.dev_name;  in prepare_amdisp_platform()
329 	strscpy(isp4_platform->board_info.type, src->board_info.type);  in prepare_amdisp_platform()
330 	isp4_platform->board_info.addr = src->board_info.addr;  in prepare_amdisp_platform()
331 	isp4_platform->pinfo = src;  in prepare_amdisp_platform()
333 	ret = software_node_register_node_group(src->swnodes);  in prepare_amdisp_platform()
338 	isp4_platform->board_info.swnode = src->swnodes[6];  in prepare_amdisp_platform()
350 	if (!adap->owner)  in try_to_instantiate_i2c_client()
366 	pinfo = device_get_match_data(&pdev->dev);  in amd_isp_probe()
368 		return dev_err_probe(&pdev->dev, -EINVAL,  in amd_isp_probe()
371 	isp4_platform = prepare_amdisp_platform(&pdev->dev, pinfo);  in amd_isp_probe()
373 		return dev_err_probe(&pdev->dev, PTR_ERR(isp4_platform),  in amd_isp_probe()
376 	isp4_platform->i2c_nb.notifier_call = isp_i2c_bus_notify;  in amd_isp_probe()
377 	ret = bus_register_notifier(&i2c_bus_type, &isp4_platform->i2c_nb);  in amd_isp_probe()
381 	adev = ACPI_COMPANION(&pdev->dev);  in amd_isp_probe()
383 	adev->driver_data = (void *)pinfo->swnodes[0];  in amd_isp_probe()
392 	software_node_unregister_node_group(isp4_platform->pinfo->swnodes);  in amd_isp_probe()
400 	bus_unregister_notifier(&i2c_bus_type, &isp4_platform->i2c_nb);  in amd_isp_remove()
401 	i2c_unregister_device(isp4_platform->i2c_dev);  in amd_isp_remove()
402 	software_node_unregister_node_group(isp4_platform->pinfo->swnodes);  in amd_isp_remove()