diff options
author | Zhu, Richard \(NSN - CN/Beijing\) <richard.zhu@nsn.com> | 2014-07-01 07:14:23 +0000 |
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committer | Guenter Roeck <linux@roeck-us.net> | 2014-08-04 07:01:38 -0700 |
commit | a8bfeceb0c1400b9331c00f6969afa6cb82d5d4a (patch) | |
tree | b0774f9e62c7af6ae14f9da24e334208e8ab2d1e /drivers/hwmon/pmbus | |
parent | 012cb5e257dcce524ee6207e50ca494d8a2b6013 (diff) | |
download | linux-a8bfeceb0c1400b9331c00f6969afa6cb82d5d4a.tar.bz2 |
hwmon: (pmbus) Add tps40422 front-end driver
For TI power management chip TPS40422, READ_TEMPERATURE_2 command is supported on
page 1 of the chip, but the original driver(pmbus.c) only tried to detect this command
on page 0, this will lead to a result that the temperature sensor in page 1 couldn't
be detected. This change is to isolate the tps40422 driver from pmbus.c into a solo
front-end driver.
Signed-off-by: Zhu Laiwen <richard.zhu@nsn.com>
[Guenter Roeck: Dropped unnecessary license text (fixes checkpatch warning)]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/pmbus')
-rw-r--r-- | drivers/hwmon/pmbus/Kconfig | 13 | ||||
-rw-r--r-- | drivers/hwmon/pmbus/Makefile | 1 | ||||
-rw-r--r-- | drivers/hwmon/pmbus/pmbus.c | 1 | ||||
-rw-r--r-- | drivers/hwmon/pmbus/tps40422.c | 64 |
4 files changed, 76 insertions, 3 deletions
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 39cc63edfbb0..6e1e4935fc62 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -20,8 +20,7 @@ config SENSORS_PMBUS help If you say yes here you get hardware monitoring support for generic PMBus devices, including but not limited to ADP4000, BMR453, BMR454, - MDT040, NCP4200, NCP4208, PDT003, PDT006, PDT012, UDT020, TPS40400, - and TPS40422. + MDT040, NCP4200, NCP4208, PDT003, PDT006, PDT012, UDT020, and TPS40400. This driver can also be built as a module. If so, the module will be called pmbus. @@ -87,6 +86,16 @@ config SENSORS_MAX8688 This driver can also be built as a module. If so, the module will be called max8688. +config SENSORS_TPS40422 + tristate "TI TPS40422" + default n + help + If you say yes here you get hardware monitoring support for TI + TPS40422. + + This driver can also be built as a module. If so, the module will + be called tps40422. + config SENSORS_UCD9000 tristate "TI UCD90120, UCD90124, UCD9090, UCD90910" default n diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index 789376c85dbb..1454293e985c 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -10,6 +10,7 @@ obj-$(CONFIG_SENSORS_LTC2978) += ltc2978.o obj-$(CONFIG_SENSORS_MAX16064) += max16064.o obj-$(CONFIG_SENSORS_MAX34440) += max34440.o obj-$(CONFIG_SENSORS_MAX8688) += max8688.o +obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o obj-$(CONFIG_SENSORS_ZL6100) += zl6100.o diff --git a/drivers/hwmon/pmbus/pmbus.c b/drivers/hwmon/pmbus/pmbus.c index 7e91700131a7..554d0249dcde 100644 --- a/drivers/hwmon/pmbus/pmbus.c +++ b/drivers/hwmon/pmbus/pmbus.c @@ -193,7 +193,6 @@ static const struct i2c_device_id pmbus_id[] = { {"pdt012", 1}, {"pmbus", 0}, {"tps40400", 1}, - {"tps40422", 2}, {"udt020", 1}, {} }; diff --git a/drivers/hwmon/pmbus/tps40422.c b/drivers/hwmon/pmbus/tps40422.c new file mode 100644 index 000000000000..32803825d47e --- /dev/null +++ b/drivers/hwmon/pmbus/tps40422.c @@ -0,0 +1,64 @@ +/* + * Hardware monitoring driver for TI TPS40422 + * + * Copyright (c) 2014 Nokia Solutions and Networks. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/i2c.h> +#include "pmbus.h" + +static struct pmbus_driver_info tps40422_info = { + .pages = 2, + .format[PSC_VOLTAGE_IN] = linear, + .format[PSC_VOLTAGE_OUT] = linear, + .format[PSC_TEMPERATURE] = linear, + .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_TEMP2 + | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_TEMP + | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, + .func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_TEMP2 + | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_STATUS_TEMP + | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT, +}; + +static int tps40422_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + return pmbus_do_probe(client, id, &tps40422_info); +} + +static const struct i2c_device_id tps40422_id[] = { + {"tps40422", 0}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, tps40422_id); + +/* This is the driver that will be inserted */ +static struct i2c_driver tps40422_driver = { + .driver = { + .name = "tps40422", + }, + .probe = tps40422_probe, + .remove = pmbus_do_remove, + .id_table = tps40422_id, +}; + +module_i2c_driver(tps40422_driver); + +MODULE_AUTHOR("Zhu Laiwen <richard.zhu@nsn.com>"); +MODULE_DESCRIPTION("PMBus driver for TI TPS40422"); +MODULE_LICENSE("GPL"); |