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SubjectRe: [PATCH v2] hwmon:(adm1275) Enable adm1278 ADM1278_TEMP1_EN
On Fri, May 29, 2020 at 10:30:16AM -0700, Guenter Roeck wrote:
> On 5/29/20 5:46 AM, Manikandan Elumalai 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@gmail.com>
>
> This is not valid.
>
> >
> > v2:
> > - Add Signed-off-by.
> > - Removed ADM1278_TEMP1_EN check.
>
> checkpatch reports:
>
> > ---WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line)
> #14:
> The adm1278 temperature sysfs attribute need it for one of the openbmc platform .
>
> CHECK: Alignment should match open parenthesis
> #45: FILE: drivers/hwmon/pmbus/adm1275.c:679:
> + ret = i2c_smbus_write_byte_data(client,
> + ADM1275_PMON_CONFIG,
>
> WARNING: suspect code indent for conditional statements (16, 16)
> #47: FILE: drivers/hwmon/pmbus/adm1275.c:681:
> + if (ret < 0) {
> + dev_err(&client->dev,
>
> ERROR: Missing Signed-off-by: line(s)
>
> total: 1 errors, 2 warnings, 1 checks, 33 lines checked
>
> Please follow published guidelines when submitting patches.
>
> > 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;
> > + }
>
> This can be handled in a single operation, together with ADM1278_VOUT_EN
> below. There is no need for two separate write operations.
>
Thanks for review Guenter, Patrick and Vijay.
Sorry for delay response.
I have made changes to write ADM1278_VOUT_EN and ADM1278_TEMP1_EN in single
operation and tested in platfrom .
The changes given for quick look and will help if any misunderstand.

--- a/drivers/hwmon/pmbus/adm1275.c
+++ b/drivers/hwmon/pmbus/adm1275.c
@@ -666,11 +666,11 @@ 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;

/* Enable VOUT if not enabled (it is disabled by default) */
if (!(config & ADM1278_VOUT_EN)) {
- config |= ADM1278_VOUT_EN;
+ config |= (ADM1278_VOUT_EN | ADM1278_TEMP1_EN);
ret = i2c_smbus_write_byte_data(client,
ADM1275_PMON_CONFIG,
config);
@@ -680,10 +680,6 @@ static int adm1275_probe(struct i2c_client *client,
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;
break;
> 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;
> >
>

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