1 // SPDX-License-Identifier: GPL-2.0+
3  * Serial multi-instantiate driver, pseudo driver to instantiate multiple
11 #include <linux/i2c.h>
55 	switch (inst->flags & IRQ_RESOURCE_TYPE) {  in smi_get_irq()
57 		ret = acpi_dev_gpio_irq_get(adev, inst->irq_idx);  in smi_get_irq()
59 			dev_dbg(&pdev->dev, "Using gpio irq\n");  in smi_get_irq()
62 		ret = platform_get_irq(pdev, inst->irq_idx);  in smi_get_irq()
64 			dev_dbg(&pdev->dev, "Using platform irq\n");  in smi_get_irq()
69 		ret = acpi_dev_gpio_irq_get(adev, inst->irq_idx);  in smi_get_irq()
72 		ret = platform_get_irq(pdev, inst->irq_idx);  in smi_get_irq()
78 		return dev_err_probe(&pdev->dev, ret, "Error requesting irq at index %d\n",  in smi_get_irq()
79 				     inst->irq_idx);  in smi_get_irq()
86 	while (smi->i2c_num--)  in smi_devs_unregister()
87 		i2c_unregister_device(smi->i2c_devs[smi->i2c_num]);  in smi_devs_unregister()
89 	while (smi->spi_num--)  in smi_devs_unregister()
90 		spi_unregister_device(smi->spi_devs[smi->spi_num]);  in smi_devs_unregister()
94  * smi_spi_probe - Instantiate multiple SPI devices from inst array
104 	struct device *dev = &pdev->dev;  in smi_spi_probe()
115 		return -ENOENT;  in smi_spi_probe()
119 	smi->spi_devs = devm_kcalloc(dev, count, sizeof(*smi->spi_devs), GFP_KERNEL);  in smi_spi_probe()
120 	if (!smi->spi_devs)  in smi_spi_probe()
121 		return -ENOMEM;  in smi_spi_probe()
128 					    dev_name(&adev->dev));  in smi_spi_probe()
132 		ctlr = spi_dev->controller;  in smi_spi_probe()
134 		strscpy(spi_dev->modalias, inst_array[i].type, sizeof(spi_dev->modalias));  in smi_spi_probe()
141 		spi_dev->irq = ret;  in smi_spi_probe()
143 		snprintf(name, sizeof(name), "%s-%s-%s.%d", dev_name(&ctlr->dev), dev_name(dev),  in smi_spi_probe()
145 		spi_dev->dev.init_name = name;  in smi_spi_probe()
149 			dev_err_probe(&ctlr->dev, ret, "failed to add SPI device %s from ACPI\n",  in smi_spi_probe()
150 				      dev_name(&adev->dev));  in smi_spi_probe()
158 		smi->spi_devs[i] = spi_dev;  in smi_spi_probe()
159 		smi->spi_num++;  in smi_spi_probe()
162 	if (smi->spi_num < count) {  in smi_spi_probe()
164 		ret = -ENODEV;  in smi_spi_probe()
168 	dev_info(dev, "Instantiated %d SPI devices.\n", smi->spi_num);  in smi_spi_probe()
178  * smi_i2c_probe - Instantiate multiple I2C devices from inst array
183  * Returns the number of I2C devices instantiate, Zero if none is found or a negative error code.
189 	struct device *dev = &pdev->dev;  in smi_i2c_probe()
198 		return -ENOENT;  in smi_i2c_probe()
202 	smi->i2c_devs = devm_kcalloc(dev, count, sizeof(*smi->i2c_devs), GFP_KERNEL);  in smi_i2c_probe()
203 	if (!smi->i2c_devs)  in smi_i2c_probe()
204 		return -ENOMEM;  in smi_i2c_probe()
209 		snprintf(name, sizeof(name), "%s-%s.%d", dev_name(dev), inst_array[i].type, i);  in smi_i2c_probe()
217 		smi->i2c_devs[i] = i2c_acpi_new_device(dev, i, &board_info);  in smi_i2c_probe()
218 		if (IS_ERR(smi->i2c_devs[i])) {  in smi_i2c_probe()
219 			ret = dev_err_probe(dev, PTR_ERR(smi->i2c_devs[i]),  in smi_i2c_probe()
220 					    "Error creating i2c-client, idx %d\n", i);  in smi_i2c_probe()
223 		smi->i2c_num++;  in smi_i2c_probe()
225 	if (smi->i2c_num < count) {  in smi_i2c_probe()
227 		ret = -ENODEV;  in smi_i2c_probe()
231 	dev_info(dev, "Instantiated %d I2C devices.\n", smi->i2c_num);  in smi_i2c_probe()
242 	struct device *dev = &pdev->dev;  in smi_probe()
250 		return -ENODEV;  in smi_probe()
255 		return -ENOMEM;  in smi_probe()
259 	switch (node->bus_type) {  in smi_probe()
261 		return smi_i2c_probe(pdev, smi, node->instances);  in smi_probe()
263 		return smi_spi_probe(pdev, smi, node->instances);  in smi_probe()
266 		 * For backwards-compatibility with the existing nodes I2C  in smi_probe()
267 		 * is checked first and if such entries are found ONLY I2C  in smi_probe()
273 		ret = smi_i2c_probe(pdev, smi, node->instances);  in smi_probe()
274 		if (ret != -ENOENT)  in smi_probe()
276 		return smi_spi_probe(pdev, smi, node->instances);  in smi_probe()
278 		return -EINVAL;  in smi_probe()
323 		{ "cs35l41-hda", IRQ_RESOURCE_AUTO, 0 },
324 		{ "cs35l41-hda", IRQ_RESOURCE_AUTO, 0 },
325 		{ "cs35l41-hda", IRQ_RESOURCE_AUTO, 0 },
326 		{ "cs35l41-hda", IRQ_RESOURCE_AUTO, 0 },
334 		{ "cs35l56-hda", IRQ_RESOURCE_AUTO, 0 },
335 		{ "cs35l56-hda", IRQ_RESOURCE_AUTO, 0 },
336 		{ "cs35l56-hda", IRQ_RESOURCE_AUTO, 0 },
337 		{ "cs35l56-hda", IRQ_RESOURCE_AUTO, 0 },
338 		/* a 5th entry is an alias address, not a real device */
339 		{ "cs35l56-hda_dummy_dev" },
346  * Note new device-ids must also be added to ignore_serial_bus_ids in
355 	/* Non-conforming _HID for Cirrus Logic already released */