From 31dd6a2672e337f5de188df3e5169ee732798236 Mon Sep 17 00:00:00 2001 From: Todd Fischer Date: Thu, 8 Apr 2010 09:04:55 +0200 Subject: mfd: Add TPS6507x support TPS6507x are multi function (PM, touchscreen) chipsets from TI. This commit also changes the corresponding regulator driver from being standalone to an MFD subdevice. Signed-off-by: Todd Fischer Acked-by: Mark Brown Signed-off-by: Liam Girdwood Signed-off-by: Samuel Ortiz --- drivers/regulator/tps6507x-regulator.c | 153 ++++++++++++++++----------------- 1 file changed, 74 insertions(+), 79 deletions(-) (limited to 'drivers/regulator/tps6507x-regulator.c') diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c index ea44741fcd47..14b4576281c5 100644 --- a/drivers/regulator/tps6507x-regulator.c +++ b/drivers/regulator/tps6507x-regulator.c @@ -22,7 +22,6 @@ #include #include #include -#include #include #include #include @@ -104,22 +103,67 @@ struct tps_info { const u16 *table; }; +static const struct tps_info tps6507x_pmic_regs[] = { + { + .name = "VDCDC1", + .min_uV = 725000, + .max_uV = 3300000, + .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), + .table = VDCDCx_VSEL_table, + }, + { + .name = "VDCDC2", + .min_uV = 725000, + .max_uV = 3300000, + .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), + .table = VDCDCx_VSEL_table, + }, + { + .name = "VDCDC3", + .min_uV = 725000, + .max_uV = 3300000, + .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), + .table = VDCDCx_VSEL_table, + }, + { + .name = "LDO1", + .min_uV = 1000000, + .max_uV = 3300000, + .table_len = ARRAY_SIZE(LDO1_VSEL_table), + .table = LDO1_VSEL_table, + }, + { + .name = "LDO2", + .min_uV = 725000, + .max_uV = 3300000, + .table_len = ARRAY_SIZE(LDO2_VSEL_table), + .table = LDO2_VSEL_table, + }, +}; + struct tps6507x_pmic { struct regulator_desc desc[TPS6507X_NUM_REGULATOR]; - struct i2c_client *client; + struct tps6507x_dev *mfd; struct regulator_dev *rdev[TPS6507X_NUM_REGULATOR]; const struct tps_info *info[TPS6507X_NUM_REGULATOR]; struct mutex io_lock; }; - static inline int tps6507x_pmic_read(struct tps6507x_pmic *tps, u8 reg) { - return i2c_smbus_read_byte_data(tps->client, reg); + u8 val; + int err; + + err = tps->mfd->read_dev(tps->mfd, reg, 1, &val); + + if (err) + return err; + + return val; } static inline int tps6507x_pmic_write(struct tps6507x_pmic *tps, u8 reg, u8 val) { - return i2c_smbus_write_byte_data(tps->client, reg, val); + return tps->mfd->write_dev(tps->mfd, reg, 1, &val); } static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask) @@ -130,7 +174,7 @@ static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask) data = tps6507x_pmic_read(tps, reg); if (data < 0) { - dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); + dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg); err = data; goto out; } @@ -138,7 +182,7 @@ static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask) data |= mask; err = tps6507x_pmic_write(tps, reg, data); if (err) - dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg); + dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg); out: mutex_unlock(&tps->io_lock); @@ -153,7 +197,7 @@ static int tps6507x_pmic_clear_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask) data = tps6507x_pmic_read(tps, reg); if (data < 0) { - dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); + dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg); err = data; goto out; } @@ -161,7 +205,7 @@ static int tps6507x_pmic_clear_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask) data &= ~mask; err = tps6507x_pmic_write(tps, reg, data); if (err) - dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg); + dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg); out: mutex_unlock(&tps->io_lock); @@ -176,7 +220,7 @@ static int tps6507x_pmic_reg_read(struct tps6507x_pmic *tps, u8 reg) data = tps6507x_pmic_read(tps, reg); if (data < 0) - dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); + dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg); mutex_unlock(&tps->io_lock); return data; @@ -190,7 +234,7 @@ static int tps6507x_pmic_reg_write(struct tps6507x_pmic *tps, u8 reg, u8 val) err = tps6507x_pmic_write(tps, reg, val); if (err < 0) - dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg); + dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg); mutex_unlock(&tps->io_lock); return err; @@ -483,11 +527,12 @@ static struct regulator_ops tps6507x_pmic_ldo_ops = { .list_voltage = tps6507x_pmic_ldo_list_voltage, }; -static int __devinit tps6507x_pmic_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static __devinit +int tps6507x_pmic_probe(struct platform_device *pdev) { + struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent); static int desc_id; - const struct tps_info *info = (void *)id->driver_data; + const struct tps_info *info = &tps6507x_pmic_regs[0]; struct regulator_init_data *init_data; struct regulator_dev *rdev; struct tps6507x_pmic *tps; @@ -495,16 +540,12 @@ static int __devinit tps6507x_pmic_probe(struct i2c_client *client, int i; int error; - if (!i2c_check_functionality(client->adapter, - I2C_FUNC_SMBUS_BYTE_DATA)) - return -EIO; - /** * tps_board points to pmic related constants * coming from the board-evm file. */ - tps_board = dev_get_platdata(&client->dev); + tps_board = dev_get_platdata(tps6507x_dev->dev); if (!tps_board) return -EINVAL; @@ -523,7 +564,7 @@ static int __devinit tps6507x_pmic_probe(struct i2c_client *client, mutex_init(&tps->io_lock); /* common for all regulators */ - tps->client = client; + tps->mfd = tps6507x_dev; for (i = 0; i < TPS6507X_NUM_REGULATOR; i++, info++, init_data++) { /* Register the regulators */ @@ -537,10 +578,11 @@ static int __devinit tps6507x_pmic_probe(struct i2c_client *client, tps->desc[i].owner = THIS_MODULE; rdev = regulator_register(&tps->desc[i], - &client->dev, init_data, tps); + tps6507x_dev->dev, init_data, tps); if (IS_ERR(rdev)) { - dev_err(&client->dev, "failed to register %s\n", - id->name); + dev_err(tps6507x_dev->dev, + "failed to register %s regulator\n", + pdev->name); error = PTR_ERR(rdev); goto fail; } @@ -549,7 +591,7 @@ static int __devinit tps6507x_pmic_probe(struct i2c_client *client, tps->rdev[i] = rdev; } - i2c_set_clientdata(client, tps); + tps6507x_dev->pmic = tps; return 0; @@ -567,14 +609,12 @@ fail: * * Unregister TPS driver as an i2c client device driver */ -static int __devexit tps6507x_pmic_remove(struct i2c_client *client) +static int __devexit tps6507x_pmic_remove(struct platform_device *pdev) { - struct tps6507x_pmic *tps = i2c_get_clientdata(client); + struct tps6507x_dev *tps6507x_dev = platform_get_drvdata(pdev); + struct tps6507x_pmic *tps = tps6507x_dev->pmic; int i; - /* clear the client data in i2c */ - i2c_set_clientdata(client, NULL); - for (i = 0; i < TPS6507X_NUM_REGULATOR; i++) regulator_unregister(tps->rdev[i]); @@ -583,59 +623,13 @@ static int __devexit tps6507x_pmic_remove(struct i2c_client *client) return 0; } -static const struct tps_info tps6507x_pmic_regs[] = { - { - .name = "VDCDC1", - .min_uV = 725000, - .max_uV = 3300000, - .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), - .table = VDCDCx_VSEL_table, - }, - { - .name = "VDCDC2", - .min_uV = 725000, - .max_uV = 3300000, - .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), - .table = VDCDCx_VSEL_table, - }, - { - .name = "VDCDC3", - .min_uV = 725000, - .max_uV = 3300000, - .table_len = ARRAY_SIZE(VDCDCx_VSEL_table), - .table = VDCDCx_VSEL_table, - }, - { - .name = "LDO1", - .min_uV = 1000000, - .max_uV = 3300000, - .table_len = ARRAY_SIZE(LDO1_VSEL_table), - .table = LDO1_VSEL_table, - }, - { - .name = "LDO2", - .min_uV = 725000, - .max_uV = 3300000, - .table_len = ARRAY_SIZE(LDO2_VSEL_table), - .table = LDO2_VSEL_table, - }, -}; - -static const struct i2c_device_id tps6507x_pmic_id[] = { - {.name = "tps6507x", - .driver_data = (unsigned long) tps6507x_pmic_regs,}, - { }, -}; -MODULE_DEVICE_TABLE(i2c, tps6507x_pmic_id); - -static struct i2c_driver tps6507x_i2c_driver = { +static struct platform_driver tps6507x_pmic_driver = { .driver = { - .name = "tps6507x", + .name = "tps6507x-pmic", .owner = THIS_MODULE, }, .probe = tps6507x_pmic_probe, .remove = __devexit_p(tps6507x_pmic_remove), - .id_table = tps6507x_pmic_id, }; /** @@ -645,7 +639,7 @@ static struct i2c_driver tps6507x_i2c_driver = { */ static int __init tps6507x_pmic_init(void) { - return i2c_add_driver(&tps6507x_i2c_driver); + return platform_driver_register(&tps6507x_pmic_driver); } subsys_initcall(tps6507x_pmic_init); @@ -656,10 +650,11 @@ subsys_initcall(tps6507x_pmic_init); */ static void __exit tps6507x_pmic_cleanup(void) { - i2c_del_driver(&tps6507x_i2c_driver); + platform_driver_unregister(&tps6507x_pmic_driver); } module_exit(tps6507x_pmic_cleanup); MODULE_AUTHOR("Texas Instruments"); MODULE_DESCRIPTION("TPS6507x voltage regulator driver"); MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:tps6507x-pmic"); 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