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authorYi Li <adamliyi@msn.com>2016-10-17 18:38:53 +1030
committerGuenter Roeck <linux@roeck-us.net>2016-12-02 13:28:07 -0800
commit2b3d0c19537c1bd0d493e302b7949460901ef489 (patch)
tree00131bd8727bc554740b51910762912baffc675a /drivers/hwmon/pmbus
parentaaf6fabf1be80b66aade0544e0ad619682e26616 (diff)
hwmon: (adm1275) Enable adm1278 VOUT sampling
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@msn.com> Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/pmbus')
-rw-r--r--drivers/hwmon/pmbus/adm1275.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c
index 3baa4f4a8c5e..4ab5293c7bf0 100644
--- a/drivers/hwmon/pmbus/adm1275.c
+++ b/drivers/hwmon/pmbus/adm1275.c
@@ -499,15 +499,27 @@ static int adm1275_probe(struct i2c_client *client,
pindex = 2;
tindex = 3;
- info->func[0] |= PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT;
+ info->func[0] |= PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT |
+ PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
+
+ /* Enable VOUT if not enabled (it is disabled by default) */
+ if (!(config & ADM1278_VOUT_EN)) {
+ config |= ADM1278_VOUT_EN;
+ ret = i2c_smbus_write_byte_data(client,
+ ADM1275_PMON_CONFIG,
+ config);
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "Failed to enable VOUT monitoring\n");
+ return -ENODEV;
+ }
+ }
+
if (config & ADM1278_TEMP1_EN)
info->func[0] |=
PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
if (config & ADM1278_VIN_EN)
info->func[0] |= PMBUS_HAVE_VIN;
- if (config & ADM1278_VOUT_EN)
- info->func[0] |=
- PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
break;
case adm1293:
case adm1294: