1 // SPDX-License-Identifier: GPL-2.0-only 2 3 #include <linux/mod_devicetable.h> 4 #include <linux/module.h> 5 #include <linux/platform_device.h> 6 #include <linux/regmap.h> 7 #include <linux/regulator/consumer.h> 8 #include <linux/reset.h> 9 #include <net/dsa.h> 10 11 #include "mt7530.h" 12 13 static const struct of_device_id mt7988_of_match[] = { 14 { .compatible = "airoha,an7583-switch", .data = &mt753x_table[ID_AN7583], }, 15 { .compatible = "airoha,en7581-switch", .data = &mt753x_table[ID_EN7581], }, 16 { .compatible = "mediatek,mt7988-switch", .data = &mt753x_table[ID_MT7988], }, 17 { /* sentinel */ }, 18 }; 19 MODULE_DEVICE_TABLE(of, mt7988_of_match); 20 21 static const struct regmap_config sw_regmap_config = { 22 .name = "switch", 23 .reg_bits = 16, 24 .val_bits = 32, 25 .reg_stride = 4, 26 .max_register = MT7530_CREV, 27 }; 28 29 static int 30 mt7988_probe(struct platform_device *pdev) 31 { 32 struct mt7530_priv *priv; 33 void __iomem *base_addr; 34 int ret; 35 36 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); 37 if (!priv) 38 return -ENOMEM; 39 40 priv->bus = NULL; 41 priv->dev = &pdev->dev; 42 43 ret = mt7530_probe_common(priv); 44 if (ret) 45 return ret; 46 47 priv->rstc = devm_reset_control_get(&pdev->dev, NULL); 48 if (IS_ERR(priv->rstc)) { 49 dev_err(&pdev->dev, "Couldn't get our reset line\n"); 50 return PTR_ERR(priv->rstc); 51 } 52 53 base_addr = devm_platform_ioremap_resource(pdev, 0); 54 if (IS_ERR(base_addr)) { 55 dev_err(&pdev->dev, "cannot request I/O memory space\n"); 56 return -ENXIO; 57 } 58 59 priv->regmap = devm_regmap_init_mmio(&pdev->dev, base_addr, 60 &sw_regmap_config); 61 if (IS_ERR(priv->regmap)) 62 return PTR_ERR(priv->regmap); 63 64 return dsa_register_switch(priv->ds); 65 } 66 67 static void mt7988_remove(struct platform_device *pdev) 68 { 69 struct mt7530_priv *priv = platform_get_drvdata(pdev); 70 71 if (priv) 72 mt7530_remove_common(priv); 73 } 74 75 static void mt7988_shutdown(struct platform_device *pdev) 76 { 77 struct mt7530_priv *priv = platform_get_drvdata(pdev); 78 79 if (!priv) 80 return; 81 82 dsa_switch_shutdown(priv->ds); 83 84 dev_set_drvdata(&pdev->dev, NULL); 85 } 86 87 static struct platform_driver mt7988_platform_driver = { 88 .probe = mt7988_probe, 89 .remove = mt7988_remove, 90 .shutdown = mt7988_shutdown, 91 .driver = { 92 .name = "mt7530-mmio", 93 .of_match_table = mt7988_of_match, 94 }, 95 }; 96 module_platform_driver(mt7988_platform_driver); 97 98 MODULE_AUTHOR("Daniel Golle <daniel@makrotopia.org>"); 99 MODULE_DESCRIPTION("Driver for Mediatek MT7530 Switch (MMIO)"); 100 MODULE_LICENSE("GPL"); 101