[PATCH 2/3] hwmon: (ibmpowernv): Add support to read 64 bit sensors

Shilpasri G Bhat shilpa.bhat at linux.vnet.ibm.com
Mon May 7 20:25:37 AEST 2018


The firmware has supported for reading sensor values of size u32.
This patch adds support to use newer firmware functions which allows
to read the sensors of size u64.

Signed-off-by: Shilpasri G Bhat <shilpa.bhat at linux.vnet.ibm.com>
---
 drivers/hwmon/ibmpowernv.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/ibmpowernv.c b/drivers/hwmon/ibmpowernv.c
index 5ccdd0b..74d9b5a 100644
--- a/drivers/hwmon/ibmpowernv.c
+++ b/drivers/hwmon/ibmpowernv.c
@@ -101,9 +101,10 @@ static ssize_t show_sensor(struct device *dev, struct device_attribute *devattr,
 	struct sensor_data *sdata = container_of(devattr, struct sensor_data,
 						 dev_attr);
 	ssize_t ret;
-	u32 x;
+	u64 x;
+
+	ret =  opal_get_sensor_data_u64(sdata->id, &x);
 
-	ret = opal_get_sensor_data(sdata->id, &x);
 	if (ret)
 		return ret;
 
@@ -114,7 +115,7 @@ static ssize_t show_sensor(struct device *dev, struct device_attribute *devattr,
 	else if (sdata->type == POWER_INPUT)
 		x *= 1000000;
 
-	return sprintf(buf, "%u\n", x);
+	return sprintf(buf, "%llu\n", x);
 }
 
 static ssize_t show_label(struct device *dev, struct device_attribute *devattr,
-- 
1.8.3.1



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