linux-kernel - [PATCH] ibmpex: Correct power use multipliers for QS2x blade

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Date:	Wed, 12 Mar 2008 18:15:38 -0700
From:	"Darrick J. Wong" <djwong@...ibm.com>
To:	lm-sensors <lm-sensors@...sensors.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"Mark M. Hoffman" <mhoffman@...htlink.com>
Subject: [PATCH] ibmpex: Correct power use multipliers for QS2x blade

The QS2x blades ships with v2.54 of the firmware, which use the same multiplier
for all power meters.

Signed-off-by: Darrick J. Wong <djwong@...ibm.com>
---

 drivers/hwmon/ibmpex.c |   11 ++++++++---
 1 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/ibmpex.c b/drivers/hwmon/ibmpex.c
index 9c9cdb0..db551d8 100644
--- a/drivers/hwmon/ibmpex.c
+++ b/drivers/hwmon/ibmpex.c
@@ -327,10 +327,14 @@ static int is_temp_sensor(const char *sensor_id, int len)
 	return 0;
 }
 
-static int power_sensor_multiplier(const char *sensor_id, int len)
+static int power_sensor_multiplier(struct ibmpex_bmc_data *data,
+				   const char *sensor_id, int len)
 {
 	int i;
 
+	if (data->sensor_major == 2)
+		return 1000000;
+
 	for (i = PEX_SENSOR_TYPE_LEN; i < len - 1; i++)
 		if (!memcmp(&sensor_id[i], watt_sensor_sig, PEX_MULT_LEN))
 			return 1000000;
@@ -398,8 +402,9 @@ static int ibmpex_find_sensors(struct ibmpex_bmc_data *data)
 			num_power++;
 			sensor_counter = num_power;
 			data->sensors[i].multiplier =
-				power_sensor_multiplier(data->rx_msg_data,
-						     data->rx_msg_len);
+				power_sensor_multiplier(data,
+							data->rx_msg_data,
+							data->rx_msg_len);
 		} else if (is_temp_sensor(data->rx_msg_data,
 					  data->rx_msg_len)) {
 			sensor_type = TEMP_SENSOR;
--
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