diff options
| author |   Alan Tull <atull@opensource.altera.com> | 2014-10-15 13:55:10 -0500 |
|---|---|---|
| committer |   Guenter Roeck <linux@roeck-us.net> | 2014-11-30 20:13:13 -0800 |
| commit | 77aa3585805920d871e09b9a60d9635e51b03d21 (patch) | |
| tree | 84233bc0790cff63430ccf67d731aa856b488feb /drivers/hwmon/pmbus/ltc2978.c | |
| parent | hwmon: (pmbus) Add regulator support (diff) | |
| download | linux-dev-77aa3585805920d871e09b9a60d9635e51b03d21.tar.xz linux-dev-77aa3585805920d871e09b9a60d9635e51b03d21.zip | |
hwmon: (ltc2978) Add regulator support
Add simple on/off regulator support for ltc2978 and
other pmbus parts supported by the ltc2978 driver.
Signed-off-by: Alan Tull <atull@opensource.altera.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/hwmon/pmbus/ltc2978.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/drivers/hwmon/pmbus/ltc2978.c b/drivers/hwmon/pmbus/ltc2978.c index e24ed521051a..0835050ec245 100644 --- a/drivers/hwmon/pmbus/ltc2978.c +++ b/drivers/hwmon/pmbus/ltc2978.c @@ -22,6 +22,7 @@ #include <linux/err.h> #include <linux/slab.h> #include <linux/i2c.h> +#include <linux/regulator/driver.h> #include "pmbus.h" enum chips { ltc2974, ltc2977, ltc2978, ltc3880, ltc3883, ltm4676 }; @@ -374,6 +375,19 @@ static const struct i2c_device_id ltc2978_id[] = { }; MODULE_DEVICE_TABLE(i2c, ltc2978_id); +#if IS_ENABLED(CONFIG_SENSORS_LTC2978_REGULATOR) +static const struct regulator_desc ltc2978_reg_desc[] = { + PMBUS_REGULATOR("vout", 0), + PMBUS_REGULATOR("vout", 1), + PMBUS_REGULATOR("vout", 2), + PMBUS_REGULATOR("vout", 3), + PMBUS_REGULATOR("vout", 4), + PMBUS_REGULATOR("vout", 5), + PMBUS_REGULATOR("vout", 6), + PMBUS_REGULATOR("vout", 7), +}; +#endif /* CONFIG_SENSORS_LTC2978_REGULATOR */ + static int ltc2978_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -487,13 +501,36 @@ static int ltc2978_probe(struct i2c_client *client, default: return -ENODEV; } + +#if IS_ENABLED(CONFIG_SENSORS_LTC2978_REGULATOR) + info->num_regulators = info->pages; + info->reg_desc = ltc2978_reg_desc; + if (info->num_regulators > ARRAY_SIZE(ltc2978_reg_desc)) { + dev_err(&client->dev, "num_regulators too large!"); + info->num_regulators = ARRAY_SIZE(ltc2978_reg_desc); + } +#endif + return pmbus_do_probe(client, id, info); } -/* This is the driver that will be inserted */ +#ifdef CONFIG_OF +static const struct of_device_id ltc2978_of_match[] = { + { .compatible = "lltc,ltc2974" }, + { .compatible = "lltc,ltc2977" }, + { .compatible = "lltc,ltc2978" }, + { .compatible = "lltc,ltc3880" }, + { .compatible = "lltc,ltc3883" }, + { .compatible = "lltc,ltm4676" }, + { } +}; +MODULE_DEVICE_TABLE(of, ltc2978_of_match); +#endif + static struct i2c_driver ltc2978_driver = { .driver = { .name = "ltc2978", + .of_match_table = of_match_ptr(ltc2978_of_match), }, .probe = ltc2978_probe, .remove = pmbus_do_remove, |