diff options
Diffstat (limited to 'drivers/net/dsa/microchip/ksz9477_i2c.c')
| -rw-r--r-- | drivers/net/dsa/microchip/ksz9477_i2c.c | 95 |
1 files changed, 70 insertions, 25 deletions
diff --git a/drivers/net/dsa/microchip/ksz9477_i2c.c b/drivers/net/dsa/microchip/ksz9477_i2c.c index 4e053a25d077..a2beb27459f1 100644 --- a/drivers/net/dsa/microchip/ksz9477_i2c.c +++ b/drivers/net/dsa/microchip/ksz9477_i2c.c @@ -2,7 +2,7 @@ /* * Microchip KSZ9477 series register access through I2C * - * Copyright (C) 2018-2019 Microchip Technology Inc. + * Copyright (C) 2018-2024 Microchip Technology Inc. */ #include <linux/i2c.h> @@ -14,9 +14,10 @@ KSZ_REGMAP_TABLE(ksz9477, not_used, 16, 0, 0); -static int ksz9477_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *i2c_id) +static int ksz9477_i2c_probe(struct i2c_client *i2c) { + const struct ksz_chip_data *chip; + struct device *ddev = &i2c->dev; struct regmap_config rc; struct ksz_device *dev; int i, ret; @@ -25,23 +26,29 @@ static int ksz9477_i2c_probe(struct i2c_client *i2c, if (!dev) return -ENOMEM; - for (i = 0; i < ARRAY_SIZE(ksz9477_regmap_config); i++) { + chip = device_get_match_data(ddev); + if (!chip) + return -EINVAL; + + /* Save chip id to do special initialization when probing. */ + dev->chip_id = chip->chip_id; + for (i = 0; i < __KSZ_NUM_REGMAPS; i++) { rc = ksz9477_regmap_config[i]; rc.lock_arg = &dev->regmap_mutex; dev->regmap[i] = devm_regmap_init_i2c(i2c, &rc); if (IS_ERR(dev->regmap[i])) { - ret = PTR_ERR(dev->regmap[i]); - dev_err(&i2c->dev, - "Failed to initialize regmap%i: %d\n", - ksz9477_regmap_config[i].val_bits, ret); - return ret; + return dev_err_probe(&i2c->dev, PTR_ERR(dev->regmap[i]), + "Failed to initialize regmap%i\n", + ksz9477_regmap_config[i].val_bits); } } if (i2c->dev.platform_data) dev->pdata = i2c->dev.platform_data; - ret = ksz9477_switch_register(dev); + dev->irq = i2c->irq; + + ret = ksz_switch_register(dev); /* Main DSA driver may not be started yet. */ if (ret) @@ -52,46 +59,84 @@ static int ksz9477_i2c_probe(struct i2c_client *i2c, return 0; } -static int ksz9477_i2c_remove(struct i2c_client *i2c) +static void ksz9477_i2c_remove(struct i2c_client *i2c) { struct ksz_device *dev = i2c_get_clientdata(i2c); - ksz_switch_remove(dev); - - return 0; + if (dev) + ksz_switch_remove(dev); } static void ksz9477_i2c_shutdown(struct i2c_client *i2c) { struct ksz_device *dev = i2c_get_clientdata(i2c); - if (dev && dev->dev_ops->shutdown) - dev->dev_ops->shutdown(dev); + if (!dev) + return; + + ksz_switch_shutdown(dev); + + i2c_set_clientdata(i2c, NULL); } static const struct i2c_device_id ksz9477_i2c_id[] = { - { "ksz9477-switch", 0 }, - {}, + { "ksz9477-switch" }, + {} }; MODULE_DEVICE_TABLE(i2c, ksz9477_i2c_id); static const struct of_device_id ksz9477_dt_ids[] = { - { .compatible = "microchip,ksz9477" }, - { .compatible = "microchip,ksz9897" }, - { .compatible = "microchip,ksz9893" }, - { .compatible = "microchip,ksz9563" }, - { .compatible = "microchip,ksz9567" }, + { + .compatible = "microchip,ksz9477", + .data = &ksz_switch_chips[KSZ9477] + }, + { + .compatible = "microchip,ksz9896", + .data = &ksz_switch_chips[KSZ9896] + }, + { + .compatible = "microchip,ksz9897", + .data = &ksz_switch_chips[KSZ9897] + }, + { + .compatible = "microchip,ksz9893", + .data = &ksz_switch_chips[KSZ9893] + }, + { + .compatible = "microchip,ksz9563", + .data = &ksz_switch_chips[KSZ9563] + }, + { + .compatible = "microchip,ksz8563", + .data = &ksz_switch_chips[KSZ8563] + }, + { + .compatible = "microchip,ksz8567", + .data = &ksz_switch_chips[KSZ8567] + }, + { + .compatible = "microchip,ksz9567", + .data = &ksz_switch_chips[KSZ9567] + }, + { + .compatible = "microchip,lan9646", + .data = &ksz_switch_chips[LAN9646] + }, {}, }; MODULE_DEVICE_TABLE(of, ksz9477_dt_ids); +static DEFINE_SIMPLE_DEV_PM_OPS(ksz_i2c_pm_ops, + ksz_switch_suspend, ksz_switch_resume); + static struct i2c_driver ksz9477_i2c_driver = { .driver = { .name = "ksz9477-switch", - .of_match_table = of_match_ptr(ksz9477_dt_ids), + .of_match_table = ksz9477_dt_ids, + .pm = &ksz_i2c_pm_ops, }, - .probe = ksz9477_i2c_probe, + .probe = ksz9477_i2c_probe, .remove = ksz9477_i2c_remove, .shutdown = ksz9477_i2c_shutdown, .id_table = ksz9477_i2c_id, |