hwmon: (pmbus/ltc2978) Add new chip ID for LTC2974

LTC2974 datasheet revision C lists the chip ID for LTC2974 as 0x0213.

Reviewed-by: Robert Coulson <rob.coulson@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/hwmon/pmbus/ltc2978.c b/drivers/hwmon/pmbus/ltc2978.c
index de3c152a1d9a..629bfe0fe90a 100644
--- a/drivers/hwmon/pmbus/ltc2978.c
+++ b/drivers/hwmon/pmbus/ltc2978.c
@@ -53,7 +53,8 @@ enum chips { ltc2974, ltc2977, ltc2978, ltc3880, ltc3883 };
 /* LTC3883 only */
 #define LTC3883_MFR_IIN_PEAK            0xe1
 
-#define LTC2974_ID                      0x0212
+#define LTC2974_ID_REV1                 0x0212
+#define LTC2974_ID_REV2                 0x0213
 #define LTC2977_ID                      0x0130
 #define LTC2978_ID_REV1                 0x0121
 #define LTC2978_ID_REV2                 0x0122
@@ -394,7 +395,7 @@ static int ltc2978_probe(struct i2c_client *client,
         if (chip_id < 0)
                 return chip_id;
 
-        if (chip_id == LTC2974_ID) {
+        if (chip_id == LTC2974_ID_REV1 || chip_id == LTC2974_ID_REV2) {
                 data->id = ltc2974;
         } else if (chip_id == LTC2977_ID) {
                 data->id = ltc2977;