From: Yi Li <adamliyi@xxxxxxx>
The adm1278 can optionally monitor the VOUT pin. This functionality is
not enabled at reset, so PMON_CONFIG needs to be modified in order to
enable it.
Signed-off-by: Yi Li <adamliyi@xxxxxxx>
Signed-off-by: Joel Stanley <joel@xxxxxxxxx>
---
Guenter, I'm not sure if this is a valid thing to do in the probe function. If
not, can you suggest an alternative method for enabling this?
drivers/hwmon/pmbus/adm1275.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c
index 3baa4f4a8c5e..7d1f5f7891cc 100644
--- a/drivers/hwmon/pmbus/adm1275.c
+++ b/drivers/hwmon/pmbus/adm1275.c
@@ -500,6 +500,19 @@ static int adm1275_probe(struct i2c_client *client,
tindex = 3;
info->func[0] |= PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT;
+
+ /* By default when reset VOUT is not enabled */
+ if (!(config & ADM1278_VOUT_EN)) {
+ config |= ADM1278_VOUT_EN;
+ ret = i2c_smbus_write_byte_data(client,
+ ADM1275_PMON_CONFIG,
+ config);
+ if (ret < 0) {
+ dev_warn(&client->dev,
+ "Failed to enable VOUT monitoring\n");
+ }
+ }
+
if (config & ADM1278_TEMP1_EN)
info->func[0] |=
PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
--
2.9.3
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