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-rw-r--r--drivers/hwmon/pmbus/max34440.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/hwmon/pmbus/max34440.c b/drivers/hwmon/pmbus/max34440.c
index 8ea31b59f8e8..f4cb196aaaf3 100644
--- a/drivers/hwmon/pmbus/max34440.c
+++ b/drivers/hwmon/pmbus/max34440.c
@@ -31,6 +31,13 @@ enum chips { max34440, max34441, max34446, max34451, max34460, max34461 };
#define MAX34440_STATUS_OT_FAULT BIT(5)
#define MAX34440_STATUS_OT_WARN BIT(6)
+/*
+ * The whole max344* family have IOUT_OC_WARN_LIMIT and IOUT_OC_FAULT_LIMIT
+ * swapped from the standard pmbus spec addresses.
+ */
+#define MAX34440_IOUT_OC_WARN_LIMIT 0x46
+#define MAX34440_IOUT_OC_FAULT_LIMIT 0x4A
+
#define MAX34451_MFR_CHANNEL_CONFIG 0xe4
#define MAX34451_MFR_CHANNEL_CONFIG_SEL_MASK 0x3f
@@ -51,6 +58,14 @@ static int max34440_read_word_data(struct i2c_client *client, int page,
const struct max34440_data *data = to_max34440_data(info);
switch (reg) {
+ case PMBUS_IOUT_OC_FAULT_LIMIT:
+ ret = pmbus_read_word_data(client, page, phase,
+ MAX34440_IOUT_OC_FAULT_LIMIT);
+ break;
+ case PMBUS_IOUT_OC_WARN_LIMIT:
+ ret = pmbus_read_word_data(client, page, phase,
+ MAX34440_IOUT_OC_WARN_LIMIT);
+ break;
case PMBUS_VIRT_READ_VOUT_MIN:
ret = pmbus_read_word_data(client, page, phase,
MAX34440_MFR_VOUT_MIN);
@@ -117,6 +132,14 @@ static int max34440_write_word_data(struct i2c_client *client, int page,
int ret;
switch (reg) {
+ case PMBUS_IOUT_OC_FAULT_LIMIT:
+ ret = pmbus_write_word_data(client, page, MAX34440_IOUT_OC_FAULT_LIMIT,
+ word);
+ break;
+ case PMBUS_IOUT_OC_WARN_LIMIT:
+ ret = pmbus_write_word_data(client, page, MAX34440_IOUT_OC_WARN_LIMIT,
+ word);
+ break;
case PMBUS_VIRT_RESET_POUT_HISTORY:
ret = pmbus_write_word_data(client, page,
MAX34446_MFR_POUT_PEAK, 0);