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path: root/drivers/hwmon/pmbus/ltc2978.c
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Diffstat (limited to 'drivers/hwmon/pmbus/ltc2978.c')
-rw-r--r--drivers/hwmon/pmbus/ltc2978.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/hwmon/pmbus/ltc2978.c b/drivers/hwmon/pmbus/ltc2978.c
index 586a89ef9e0f..e05ff565ef61 100644
--- a/drivers/hwmon/pmbus/ltc2978.c
+++ b/drivers/hwmon/pmbus/ltc2978.c
@@ -1,5 +1,6 @@
/*
- * Hardware monitoring driver for LTC2974, LTC2978, LTC3880, and LTC3883
+ * Hardware monitoring driver for LTC2974, LTC2977, LTC2978, LTC3880,
+ * and LTC3883
*
* Copyright (c) 2011 Ericsson AB.
* Copyright (c) 2013 Guenter Roeck
@@ -27,7 +28,7 @@
#include <linux/i2c.h>
#include "pmbus.h"
-enum chips { ltc2974, ltc2978, ltc3880, ltc3883 };
+enum chips { ltc2974, ltc2977, ltc2978, ltc3880, ltc3883 };
/* Common for all chips */
#define LTC2978_MFR_VOUT_PEAK 0xdd
@@ -35,7 +36,7 @@ enum chips { ltc2974, ltc2978, ltc3880, ltc3883 };
#define LTC2978_MFR_TEMPERATURE_PEAK 0xdf
#define LTC2978_MFR_SPECIAL_ID 0xe7
-/* LTC2974 and LTC2978 */
+/* LTC2974, LCT2977, and LTC2978 */
#define LTC2978_MFR_VOUT_MIN 0xfb
#define LTC2978_MFR_VIN_MIN 0xfc
#define LTC2978_MFR_TEMPERATURE_MIN 0xfd
@@ -53,6 +54,7 @@ enum chips { ltc2974, ltc2978, ltc3880, ltc3883 };
#define LTC3883_MFR_IIN_PEAK 0xe1
#define LTC2974_ID 0x0212
+#define LTC2977_ID 0x0130
#define LTC2978_ID_REV1 0x0121
#define LTC2978_ID_REV2 0x0122
#define LTC3880_ID 0x4000
@@ -363,6 +365,7 @@ static int ltc2978_write_word_data(struct i2c_client *client, int page,
static const struct i2c_device_id ltc2978_id[] = {
{"ltc2974", ltc2974},
+ {"ltc2977", ltc2977},
{"ltc2978", ltc2978},
{"ltc3880", ltc3880},
{"ltc3883", ltc3883},
@@ -392,6 +395,8 @@ static int ltc2978_probe(struct i2c_client *client,
if (chip_id == LTC2974_ID) {
data->id = ltc2974;
+ } else if (chip_id == LTC2977_ID) {
+ data->id = ltc2977;
} else if (chip_id == LTC2978_ID_REV1 || chip_id == LTC2978_ID_REV2) {
data->id = ltc2978;
} else if ((chip_id & LTC3880_ID_MASK) == LTC3880_ID) {
@@ -438,6 +443,7 @@ static int ltc2978_probe(struct i2c_client *client,
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT;
}
break;
+ case ltc2977:
case ltc2978:
info->read_word_data = ltc2978_read_word_data;
info->pages = LTC2978_NUM_PAGES;

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