diff options
| -rw-r--r-- | Documentation/hwmon/ltc2978 | 24 | ||||
| -rw-r--r-- | drivers/hwmon/pmbus/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/hwmon/pmbus/ltc2978.c | 10 |
3 files changed, 25 insertions, 11 deletions
diff --git a/Documentation/hwmon/ltc2978 b/Documentation/hwmon/ltc2978 index f997aa53eb95..9a49d3c90cd1 100644 --- a/Documentation/hwmon/ltc2978 +++ b/Documentation/hwmon/ltc2978 @@ -47,6 +47,10 @@ Supported chips: Prefix: 'ltm2987' Addresses scanned: - Datasheet: http://www.linear.com/product/ltm2987 + * Linear Technology LTM4675 + Prefix: 'ltm4675' + Addresses scanned: - + Datasheet: http://www.linear.com/product/ltm4675 * Linear Technology LTM4676 Prefix: 'ltm4676' Addresses scanned: - @@ -70,6 +74,7 @@ LTC3883 is a single phase step-down DC/DC controller. LTM2987 is a 16-channel Power System Manager with two LTC2977 plus additional components on a single die. The chip is instantiated and reported as two separate chips on two different I2C bus addresses. +LTM4675 is a dual 9A or single 18A μModule regulator LTM4676 is a dual 13A or single 26A uModule regulator. @@ -117,7 +122,8 @@ in[N]_label "vout[1-8]". LTC2974, LTC2975: N=2-5 LTC2977, LTC2980, LTM2987: N=2-9 LTC2978: N=2-9 - LTC3880, LTC3882, LTC23886 LTC3887, LTM4676: N=2-3 + LTC3880, LTC3882, LTC23886 LTC3887, LTM4675, LTM4676: + N=2-3 LTC3883: N=2 in[N]_input Measured output voltage. in[N]_min Minimum output voltage. @@ -139,9 +145,9 @@ temp[N]_input Measured temperature. On LTC2977, LTC2980, LTC2978, and LTM2987, only one temperature measurement is supported and reports the chip temperature. - On LTC3880, LTC3882, LTC3887, and LTM4676, temp1 and - temp2 report external temperatures, and temp3 reports - the chip temperature. + On LTC3880, LTC3882, LTC3887, LTM4675, and LTM4676, + temp1 and temp2 report external temperatures, and temp3 + reports the chip temperature. On LTC3883, temp1 reports an external temperature, and temp2 reports the chip temperature. temp[N]_min Mimimum temperature. LTC2974, LCT2977, LTM2980, LTC2978, @@ -172,12 +178,13 @@ power[N]_label "pout[1-4]". LTC2974, LTC2975: N=1-4 LTC2977, LTC2980, LTM2987: Not supported LTC2978: Not supported - LTC3880, LTC3882, LTC3886, LTC3887, LTM4676: N=1-2 + LTC3880, LTC3882, LTC3886, LTC3887, LTM4675, LTM4676: + N=1-2 LTC3883: N=2 power[N]_input Measured output power. -curr1_label "iin". LTC3880, LTC3883, LTC3886, LTC3887, and LTM4676 - only. +curr1_label "iin". LTC3880, LTC3883, LTC3886, LTC3887, LTM4675, + and LTM4676 only. curr1_input Measured input current. curr1_max Maximum input current. curr1_max_alarm Input current high alarm. @@ -188,7 +195,8 @@ curr[N]_label "iout[1-4]". LTC2974, LTC2975: N=1-4 LTC2977, LTC2980, LTM2987: not supported LTC2978: not supported - LTC3880, LTC3882, LTC3886, LTC3887, LTM4676: N=2-3 + LTC3880, LTC3882, LTC3886, LTC3887, LTM4675, LTM4676: + N=2-3 LTC3883: N=2 curr[N]_input Measured output current. curr[N]_max Maximum output current. diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 5ebc36255c88..df6ebb2b8f0f 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -53,7 +53,7 @@ config SENSORS_LTC2978 help If you say yes here you get hardware monitoring support for Linear Technology LTC2974, LTC2975, LTC2977, LTC2978, LTC2980, LTC3880, - LTC3883, LTC3886, LTC3887, LTCM2987, and LTM4676. + LTC3883, LTC3886, LTC3887, LTCM2987, LTM4675, 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 f1c69c9de849..58b789c28b48 100644 --- a/drivers/hwmon/pmbus/ltc2978.c +++ b/drivers/hwmon/pmbus/ltc2978.c @@ -28,7 +28,7 @@ #include "pmbus.h" enum chips { ltc2974, ltc2975, ltc2977, ltc2978, ltc2980, ltc3880, ltc3882, - ltc3883, ltc3886, ltc3887, ltm2987, ltm4676 }; + ltc3883, ltc3886, ltc3887, ltm2987, ltm4675, ltm4676 }; /* Common for all chips */ #define LTC2978_MFR_VOUT_PEAK 0xdd @@ -46,7 +46,7 @@ enum chips { ltc2974, ltc2975, ltc2977, ltc2978, ltc2980, ltc3880, ltc3882, #define LTC2974_MFR_IOUT_PEAK 0xd7 #define LTC2974_MFR_IOUT_MIN 0xd8 -/* LTC3880, LTC3882, LTC3883, LTC3887, and LTM4676 */ +/* LTC3880, LTC3882, LTC3883, LTC3887, LTM4675, and LTM4676 */ #define LTC3880_MFR_IOUT_PEAK 0xd7 #define LTC3880_MFR_CLEAR_PEAKS 0xe3 #define LTC3880_MFR_TEMPERATURE2_PEAK 0xf4 @@ -77,6 +77,7 @@ enum chips { ltc2974, ltc2975, ltc2977, ltc2978, ltc2980, ltc3880, ltc3882, #define LTC3887_ID 0x4700 #define LTM2987_ID_A 0x8010 /* A/B for two die IDs */ #define LTM2987_ID_B 0x8020 +#define LTM4675_ID 0x47a0 #define LTM4676_ID_REV1 0x4400 #define LTM4676_ID_REV2 0x4480 #define LTM4676A_ID 0x47e0 @@ -509,6 +510,7 @@ static const struct i2c_device_id ltc2978_id[] = { {"ltc3886", ltc3886}, {"ltc3887", ltc3887}, {"ltm2987", ltm2987}, + {"ltm4675", ltm4675}, {"ltm4676", ltm4676}, {} }; @@ -581,6 +583,8 @@ static int ltc2978_get_id(struct i2c_client *client) return ltc3887; else if (chip_id == LTM2987_ID_A || chip_id == LTM2987_ID_B) return ltm2987; + else if (chip_id == LTM4675_ID) + return ltm4675; else if (chip_id == LTM4676_ID_REV1 || chip_id == LTM4676_ID_REV2 || chip_id == LTM4676A_ID) return ltm4676; @@ -678,6 +682,7 @@ static int ltc2978_probe(struct i2c_client *client, break; case ltc3880: case ltc3887: + case ltm4675: case ltm4676: data->features |= FEAT_CLEAR_PEAKS | FEAT_NEEDS_POLLING; info->read_word_data = ltc3880_read_word_data; @@ -763,6 +768,7 @@ static const struct of_device_id ltc2978_of_match[] = { { .compatible = "lltc,ltc3886" }, { .compatible = "lltc,ltc3887" }, { .compatible = "lltc,ltm2987" }, + { .compatible = "lltc,ltm4675" }, { .compatible = "lltc,ltm4676" }, { } }; |