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