Re: [PATCH v2] hwmon:(adm1275) Enable adm1278 ADM1278_TEMP1_EN

[Manikandan]

On Fri, Jun 05, 2020 at 11:04:51AM -0700, Guenter Roeck wrote:
> 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@xxxxxxxxx>
> > > 
> > > 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.

        Thanks for quick review Guenter. I will submit all changes in v3.
> 
> >  			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;
> > > > 
> > >