linux-kernel - [PATCH v5] hwmon:(adm1275) Enable adm1278 ADM1278_TEMP1

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Message-ID: <20200620043509.GA27532@cnn>
Date:   Sat, 20 Jun 2020 10:05:09 +0530
From:   Manikandan Elumalai <manikandan.hcl.ers.epl@...il.com>
To:     Guenter Roeck <linux@...ck-us.net>,
        Jean Delvare <jdelvare@...e.com>, linux-hwmon@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     saipsdasari@...com, patrickw3@...com, vijaykhemka@...com,
        linux-aspeed@...ts.ozlabs.org, openbmc@...ts.ozlabs.org,
        manikandan.e@....com
Subject: [PATCH v5] hwmon:(adm1275) Enable adm1278 ADM1278_TEMP1_EN

The adm1278 temp attribute need it for openbmc platform .
This feature not enabled by default, so PMON_CONFIG needs to enable it.

Signed-off-by: Manikandan Elumalai <manikandan.hcl.ers.epl@...il.com>
---
---    v5 -align commit and change log. 
---    v4 -Reported-by: kernel test robot <lkp@...el.com>
---    v3 -fix invalid signed-off.
---       -removed checkpath warnings.
---       -write ADM1278_TEMP1_EN and ADM1278_VOUT_EN conf in single line operation.
---    v2 -add Signed-off-by.
---       -removed ADM1278_TEMP1_EN check.
---
---
 drivers/hwmon/pmbus/adm1275.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c
index 5caa37fb..d4e1925 100644
--- a/drivers/hwmon/pmbus/adm1275.c
+++ b/drivers/hwmon/pmbus/adm1275.c
@@ -666,11 +666,12 @@ 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;
+		/* Enable VOUT & TEMP1 if not enabled (disabled by default) */
+		if ((config & (ADM1278_VOUT_EN | ADM1278_TEMP1_EN)) != (ADM1278_VOUT_EN | ADM1278_TEMP1_EN)) {
+			config |= ADM1278_VOUT_EN | ADM1278_TEMP1_EN;
 			ret = i2c_smbus_write_byte_data(client,
 							ADM1275_PMON_CONFIG,
 							config);
@@ -681,9 +682,6 @@ 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