Messages in this thread Patch in this message |  | | From | Joel Stanley <> | Subject | [PATCH] hwmon: (adm1275) Enable adm1278 VOUT sampling | Date | Fri, 14 Oct 2016 20:36:05 +1030 |
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From: Yi Li <adamliyi@msn.com>
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> ---
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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