1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * Microchip ksz series register access through SPI
15 #include <linux/spi/spi.h>
40 static int ksz_spi_probe(struct spi_device *spi)  in ksz_spi_probe()  argument
44 	struct device *ddev = &spi->dev;  in ksz_spi_probe()
49 	dev = ksz_switch_alloc(&spi->dev, spi);  in ksz_spi_probe()
51 		return -ENOMEM;  in ksz_spi_probe()
55 		return -EINVAL;  in ksz_spi_probe()
57 	if (chip->chip_id == KSZ8830_CHIP_ID)  in ksz_spi_probe()
59 	else if (chip->chip_id == KSZ8795_CHIP_ID ||  in ksz_spi_probe()
60 		 chip->chip_id == KSZ8794_CHIP_ID ||  in ksz_spi_probe()
61 		 chip->chip_id == KSZ8765_CHIP_ID)  in ksz_spi_probe()
68 		rc.lock_arg = &dev->regmap_mutex;  in ksz_spi_probe()
69 		rc.wr_table = chip->wr_table;  in ksz_spi_probe()
70 		rc.rd_table = chip->rd_table;  in ksz_spi_probe()
71 		dev->regmap[i] = devm_regmap_init_spi(spi, &rc);  in ksz_spi_probe()
73 		if (IS_ERR(dev->regmap[i])) {  in ksz_spi_probe()
74 			ret = PTR_ERR(dev->regmap[i]);  in ksz_spi_probe()
75 			dev_err(&spi->dev,  in ksz_spi_probe()
82 	if (spi->dev.platform_data)  in ksz_spi_probe()
83 		dev->pdata = spi->dev.platform_data;  in ksz_spi_probe()
85 	/* setup spi */  in ksz_spi_probe()
86 	spi->mode = SPI_MODE_3;  in ksz_spi_probe()
87 	ret = spi_setup(spi);  in ksz_spi_probe()
91 	dev->irq = spi->irq;  in ksz_spi_probe()
99 	spi_set_drvdata(spi, dev);  in ksz_spi_probe()
104 static void ksz_spi_remove(struct spi_device *spi)  in ksz_spi_remove()  argument
106 	struct ksz_device *dev = spi_get_drvdata(spi);  in ksz_spi_remove()
112 static void ksz_spi_shutdown(struct spi_device *spi)  in ksz_spi_shutdown()  argument
114 	struct ksz_device *dev = spi_get_drvdata(spi);  in ksz_spi_shutdown()
119 	if (dev->dev_ops->reset)  in ksz_spi_shutdown()
120 		dev->dev_ops->reset(dev);  in ksz_spi_shutdown()
122 	dsa_switch_shutdown(dev->ds);  in ksz_spi_shutdown()
124 	spi_set_drvdata(spi, NULL);  in ksz_spi_shutdown()
129 		.compatible = "microchip,ksz8765",
133 		.compatible = "microchip,ksz8794",
137 		.compatible = "microchip,ksz8795",
141 		.compatible = "microchip,ksz8863",
145 		.compatible = "microchip,ksz8873",
149 		.compatible = "microchip,ksz9477",
153 		.compatible = "microchip,ksz9896",
157 		.compatible = "microchip,ksz9897",
161 		.compatible = "microchip,ksz9893",
165 		.compatible = "microchip,ksz9563",
169 		.compatible = "microchip,ksz8563",
173 		.compatible = "microchip,ksz9567",
177 		.compatible = "microchip,lan9370",
181 		.compatible = "microchip,lan9371",
185 		.compatible = "microchip,lan9372",
189 		.compatible = "microchip,lan9373",
193 		.compatible = "microchip,lan9374",
220 MODULE_DEVICE_TABLE(spi, ksz_spi_ids);
224 		.name	= "ksz-switch",
236 MODULE_ALIAS("spi:ksz9477");
237 MODULE_ALIAS("spi:ksz9896");
238 MODULE_ALIAS("spi:ksz9897");
239 MODULE_ALIAS("spi:ksz9893");
240 MODULE_ALIAS("spi:ksz9563");
241 MODULE_ALIAS("spi:ksz8563");
242 MODULE_ALIAS("spi:ksz9567");
243 MODULE_ALIAS("spi:lan937x");
245 MODULE_DESCRIPTION("Microchip ksz Series Switch SPI Driver");