On 5/29/20 10:57 AM, Vijay Khemka wrote: > > > On 5/29/20, 5:47 AM, "Manikandan Elumalai" <manikandan.hcl.ers.epl@xxxxxxxxx> wrote: > > The adm1278 temperature sysfs attribute need it for one of the openbmc platform . > This functionality is not enabled by default, so PMON_CONFIG needs to be modified in order to enable it. > > Signed-off-by : Manikandan Elumalai <manikandan.hcl.ers.epl@xxxxxxxxx> > > v2: > - Add Signed-off-by. > - Removed ADM1278_TEMP1_EN check. > --- > drivers/hwmon/pmbus/adm1275.c | 21 +++++++++++++++++---- > 1 file changed, 17 insertions(+), 4 deletions(-) > > diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c > index 5caa37fb..ab5fceb 100644 > --- a/drivers/hwmon/pmbus/adm1275.c > +++ b/drivers/hwmon/pmbus/adm1275.c > @@ -666,7 +666,23 @@ static int adm1275_probe(struct i2c_client *client, > tindex = 3; > > info->func[0] |= PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT | > - PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; > + PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | > + PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; > + > + config = i2c_smbus_read_byte_data(client, ADM1275_PMON_CONFIG); > + if (config < 0) > + return config; > + > + /* Enable TEMP1 by default */ > + config |= ADM1278_TEMP1_EN; > + ret = i2c_smbus_write_byte_data(client, > + ADM1275_PMON_CONFIG, > + config); > + if (ret < 0) { > + dev_err(&client->dev, > + "Failed to enable temperature config\n"); > + return -ENODEV; > + } > You don't need this above code removing check as below should be enough to > populate sysfs entry you need. > You mean you are only interested in having the attribute, even if it doesn't report anything useful because monitoring is disabled in the chip ? Sorry, I don't understand. Can you elaborate ? Thanks, Guenter > /* Enable VOUT if not enabled (it is disabled by default) */ > if (!(config & ADM1278_VOUT_EN)) { > @@ -681,9 +697,6 @@ static int adm1275_probe(struct i2c_client *client, > } > } > > - 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; > break; > -- > 2.7.4 > > >