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| author | Marcello Sylvester Bauer <sylv@sylv.io> | 2022-02-21 10:42:07 +0100 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2022-02-27 17:03:19 -0800 |
| commit | ba1d263af1c034baf479bca14d6f715b713214b1 (patch) | |
| tree | a09857cc3830c78e872ca4b1131e179e5b2984e8 /drivers/hwmon | |
| parent | d0cd978513f2e37c353ec2dcfbd863f97edb1dcd (diff) | |
| download | linux-ba1d263af1c034baf479bca14d6f715b713214b1.tar.gz | |
hwmon: (pmbus/pli1209bc) Add regulator support
Add regulator support for PLI1209BC Digital Supervisor. Signed-off-by: Marcello Sylvester Bauer <sylv@sylv.io> Link: https://lore.kernel.org/r/21b0cdb6dd72654effa451d3b1636ecd07b160e9.1645435888.git.sylv@sylv.io Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/pmbus/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/hwmon/pmbus/pli1209bc.c | 31 |
2 files changed, 38 insertions, 0 deletions
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index f18f67a94697..6552467c588d 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -326,6 +326,13 @@ config SENSORS_PLI1209BC This driver can also be built as a module. If so, the module will be called pli1209bc. +config SENSORS_PLI1209BC_REGULATOR + bool "Regulator support for PLI1209BC" + depends on SENSORS_PLI1209BC && REGULATOR + help + If you say yes here you get regulator support for Vicor PLI1209BC + Digital Supervisor. + config SENSORS_PM6764TR tristate "ST PM6764TR" help diff --git a/drivers/hwmon/pmbus/pli1209bc.c b/drivers/hwmon/pmbus/pli1209bc.c index 5f8847307e55..05b4ee35ba27 100644 --- a/drivers/hwmon/pmbus/pli1209bc.c +++ b/drivers/hwmon/pmbus/pli1209bc.c @@ -8,6 +8,7 @@ #include <linux/i2c.h> #include <linux/module.h> #include <linux/pmbus.h> +#include <linux/regulator/driver.h> #include "pmbus.h" /* @@ -33,11 +34,37 @@ static int pli1209bc_read_word_data(struct i2c_client *client, int page, return data; data = sign_extend32(data, 15) * 10; return clamp_val(data, -32768, 32767) & 0xffff; + /* + * PMBUS_READ_VOUT and PMBUS_READ_TEMPERATURE_1 return invalid data + * when the BCM is turned off. Since it is not possible to return + * ENODATA error, return zero instead. + */ + case PMBUS_READ_VOUT: + case PMBUS_READ_TEMPERATURE_1: + data = pmbus_read_word_data(client, page, phase, + PMBUS_STATUS_WORD); + if (data < 0) + return data; + if (data & PB_STATUS_POWER_GOOD_N) + return 0; + return pmbus_read_word_data(client, page, phase, reg); default: return -ENODATA; } } +#if IS_ENABLED(CONFIG_SENSORS_PLI1209BC_REGULATOR) +static const struct regulator_desc pli1209bc_reg_desc = { + .name = "vout2", + .id = 1, + .of_match = of_match_ptr("vout2"), + .regulators_node = of_match_ptr("regulators"), + .ops = &pmbus_regulator_ops, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, +}; +#endif + static struct pmbus_driver_info pli1209bc_info = { .pages = 2, .format[PSC_VOLTAGE_IN] = direct, @@ -75,6 +102,10 @@ static struct pmbus_driver_info pli1209bc_info = { | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_INPUT, .read_word_data = pli1209bc_read_word_data, +#if IS_ENABLED(CONFIG_SENSORS_PLI1209BC_REGULATOR) + .num_regulators = 1, + .reg_desc = &pli1209bc_reg_desc, +#endif }; static int pli1209bc_probe(struct i2c_client *client) |