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hwmon: (pmbus/max34440) Fix OC fault limits 

The max34* family have the IOUT_OC_WARN_LIMIT and IOUT_OC_CRIT_LIMIT
registers swapped.

Cc: stable@vger.kernel.org
Signed-off-by: Steve Foreman <foremans@google.com>
[groeck: Updated subject, use C comment style, tab after defines]
[groeck: Added missing break; statements (by alexandru.ardelean@analog.com)]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Steve Foreman 2020-10-02 16:35:38 +00:00 committed by Guenter Roeck
parent 0ffd21d598
commit 2b52278150
1 changed files with 23 additions and 0 deletions
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23
drivers/hwmon/pmbus/max34440.c
View File

@ -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);