diff options
| author | Guenter Roeck <linux@roeck-us.net> | 2015-08-17 16:38:01 +0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2015-08-18 02:35:59 +0300 |
| commit | 52aae6af71e0e78e25c64e13266917bb323984d5 (patch) | |
| tree | b70c2d44f6e107da40f58b1f2352658ad9261079 /drivers/hwmon/pmbus | |
| parent | acb092cdf9a285fd4706bc6ffd5f99840d53bba5 (diff) | |
| download | linux-52aae6af71e0e78e25c64e13266917bb323984d5.tar.xz | |
hwmon: (ltc2978) Add support for LTC2980 and LTM2987
LTC2980 and LTM2987 are command compatible to LTC2977. They consist of
two LTC2977 on a single die, and are instantiated as two separate chips,
each supporting eight channels.
Suggested-by: Michael Jones <mike@proclivis.com>
Tested-by: Michael Jones <mike@proclivis.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/pmbus')
| -rw-r--r-- | drivers/hwmon/pmbus/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/hwmon/pmbus/ltc2978.c | 20 |
2 files changed, 19 insertions, 5 deletions
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 8279727987cb..af778aed4033 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -52,8 +52,8 @@ config SENSORS_LTC2978 default n help If you say yes here you get hardware monitoring support for Linear - Technology LTC2974, LTC2975, LTC2977, LTC2978, LTC3880, LTC3883, - LTC3887, and LTM4676. + Technology LTC2974, LTC2975, LTC2977, LTC2978, LTC2980, LTC3880, + LTC3883, LTC3887, LTCM2987, and LTM4676. This driver can also be built as a module. If so, the module will be called ltc2978. diff --git a/drivers/hwmon/pmbus/ltc2978.c b/drivers/hwmon/pmbus/ltc2978.c index e9d3f828fe46..48dcde0bc740 100644 --- a/drivers/hwmon/pmbus/ltc2978.c +++ b/drivers/hwmon/pmbus/ltc2978.c @@ -24,8 +24,8 @@ #include <linux/regulator/driver.h> #include "pmbus.h" -enum chips { ltc2974, ltc2975, ltc2977, ltc2978, ltc3880, ltc3882, ltc3883, - ltc3887, ltm4676 }; +enum chips { ltc2974, ltc2975, ltc2977, ltc2978, ltc2980, ltc3880, ltc3882, + ltc3883, ltc3887, ltm2987, ltm4676 }; /* Common for all chips */ #define LTC2978_MFR_VOUT_PEAK 0xdd @@ -33,7 +33,7 @@ enum chips { ltc2974, ltc2975, ltc2977, ltc2978, ltc3880, ltc3882, ltc3883, #define LTC2978_MFR_TEMPERATURE_PEAK 0xdf #define LTC2978_MFR_SPECIAL_ID 0xe7 /* Undocumented on LTC3882 */ -/* LTC2974, LTC2975, LCT2977, and LTC2978 */ +/* LTC2974, LTC2975, LCT2977, LTC2980, LTC2978, and LTM2987 */ #define LTC2978_MFR_VOUT_MIN 0xfb #define LTC2978_MFR_VIN_MIN 0xfc #define LTC2978_MFR_TEMPERATURE_MIN 0xfd @@ -63,11 +63,15 @@ enum chips { ltc2974, ltc2975, ltc2977, ltc2978, ltc3880, ltc3882, ltc3883, #define LTC2977_ID 0x0130 #define LTC2978_ID_REV1 0x0110 /* Early revision */ #define LTC2978_ID_REV2 0x0120 +#define LTC2980_ID_A 0x8030 /* A/B for two die IDs */ +#define LTC2980_ID_B 0x8040 #define LTC3880_ID 0x4020 #define LTC3882_ID 0x4200 #define LTC3882_ID_D1 0x4240 /* Dash 1 */ #define LTC3883_ID 0x4300 #define LTC3887_ID 0x4700 +#define LTM2987_ID_A 0x8010 /* A/B for two die IDs */ +#define LTM2987_ID_B 0x8020 #define LTM4676_ID_REV1 0x4400 #define LTM4676_ID_REV2 0x4480 #define LTM4676A_ID 0x47e0 @@ -409,10 +413,12 @@ static const struct i2c_device_id ltc2978_id[] = { {"ltc2975", ltc2975}, {"ltc2977", ltc2977}, {"ltc2978", ltc2978}, + {"ltc2980", ltc2980}, {"ltc3880", ltc3880}, {"ltc3882", ltc3882}, {"ltc3883", ltc3883}, {"ltc3887", ltc3887}, + {"ltm2987", ltm2987}, {"ltm4676", ltm4676}, {} }; @@ -471,6 +477,8 @@ static int ltc2978_get_id(struct i2c_client *client) return ltc2977; else if (chip_id == LTC2978_ID_REV1 || chip_id == LTC2978_ID_REV2) return ltc2978; + else if (chip_id == LTC2980_ID_A || chip_id == LTC2980_ID_B) + return ltc2980; else if (chip_id == LTC3880_ID) return ltc3880; else if (chip_id == LTC3882_ID || chip_id == LTC3882_ID_D1) @@ -479,6 +487,8 @@ static int ltc2978_get_id(struct i2c_client *client) return ltc3883; else if (chip_id == LTC3887_ID) return ltc3887; + else if (chip_id == LTM2987_ID_A || chip_id == LTM2987_ID_B) + return ltm2987; else if (chip_id == LTM4676_ID_REV1 || chip_id == LTM4676_ID_REV2 || chip_id == LTM4676A_ID) return ltm4676; @@ -559,6 +569,8 @@ static int ltc2978_probe(struct i2c_client *client, break; case ltc2977: case ltc2978: + case ltc2980: + case ltm2987: info->read_word_data = ltc2978_read_word_data; info->pages = LTC2978_NUM_PAGES; info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT @@ -634,10 +646,12 @@ static const struct of_device_id ltc2978_of_match[] = { { .compatible = "lltc,ltc2975" }, { .compatible = "lltc,ltc2977" }, { .compatible = "lltc,ltc2978" }, + { .compatible = "lltc,ltc2980" }, { .compatible = "lltc,ltc3880" }, { .compatible = "lltc,ltc3882" }, { .compatible = "lltc,ltc3883" }, { .compatible = "lltc,ltc3887" }, + { .compatible = "lltc,ltm2987" }, { .compatible = "lltc,ltm4676" }, { } }; |