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SubjectRe: [PATCH v2] hwmon:(adm1275) Enable adm1278 ADM1278_TEMP1_EN
On Fri, Jun 05, 2020 at 10:18:21PM +0530, Manikandan wrote:
> 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)) {

if (config & (ADM1278_VOUT_EN | ADM1278_TEMP1_EN) !=
ADM1278_VOUT_EN | ADM1278_TEMP1_EN)

> - config |= ADM1278_VOUT_EN;
> + config |= (ADM1278_VOUT_EN | ADM1278_TEMP1_EN);

( ) is unnecessary here.

> 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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