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1// SPDX-License-Identifier: GPL-2.0-only2 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 13static const struct of_device_id mt7988_of_match[] = {14 { .compatible = "airoha,en7581-switch", .data = &mt753x_table[ID_EN7581], },15 { .compatible = "mediatek,mt7988-switch", .data = &mt753x_table[ID_MT7988], },16 { /* sentinel */ },17};18MODULE_DEVICE_TABLE(of, mt7988_of_match);19 20static int21mt7988_probe(struct platform_device *pdev)22{23 static struct regmap_config *sw_regmap_config;24 struct mt7530_priv *priv;25 void __iomem *base_addr;26 int ret;27 28 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);29 if (!priv)30 return -ENOMEM;31 32 priv->bus = NULL;33 priv->dev = &pdev->dev;34 35 ret = mt7530_probe_common(priv);36 if (ret)37 return ret;38 39 priv->rstc = devm_reset_control_get(&pdev->dev, NULL);40 if (IS_ERR(priv->rstc)) {41 dev_err(&pdev->dev, "Couldn't get our reset line\n");42 return PTR_ERR(priv->rstc);43 }44 45 base_addr = devm_platform_ioremap_resource(pdev, 0);46 if (IS_ERR(base_addr)) {47 dev_err(&pdev->dev, "cannot request I/O memory space\n");48 return -ENXIO;49 }50 51 sw_regmap_config = devm_kzalloc(&pdev->dev, sizeof(*sw_regmap_config), GFP_KERNEL);52 if (!sw_regmap_config)53 return -ENOMEM;54 55 sw_regmap_config->name = "switch";56 sw_regmap_config->reg_bits = 16;57 sw_regmap_config->val_bits = 32;58 sw_regmap_config->reg_stride = 4;59 sw_regmap_config->max_register = MT7530_CREV;60 priv->regmap = devm_regmap_init_mmio(&pdev->dev, base_addr, 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 67static 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 75static 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 87static struct platform_driver mt7988_platform_driver = {88 .probe = mt7988_probe,89 .remove_new = mt7988_remove,90 .shutdown = mt7988_shutdown,91 .driver = {92 .name = "mt7530-mmio",93 .of_match_table = mt7988_of_match,94 },95};96module_platform_driver(mt7988_platform_driver);97 98MODULE_AUTHOR("Daniel Golle <daniel@makrotopia.org>");99MODULE_DESCRIPTION("Driver for Mediatek MT7530 Switch (MMIO)");100MODULE_LICENSE("GPL");101