From mboxrd@z Thu Jan 1 00:00:00 1970 From: Manikandan Elumalai Date: Fri, 29 May 2020 18:16:07 +0530 Subject: [PATCH v2] hwmon:(adm1275) Enable adm1278 ADM1278_TEMP1_EN Message-ID: <20200529124607.GA3469@cnn> List-Id: To: linux-aspeed@lists.ozlabs.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit 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 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; + } /* 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