hwmon: (max6639) Fix PPR register initialization to set both channels

Initialize PPR register for both channels, and set correct PPR register bits.
Also remove unnecessary variable initializations.

Signed-off-by: Chris D Schimp <silverchris@gmail.com>
[guenter.roeck@ericsson.com: Merged two patches into one]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@vger.kernel.org # 3.0+
Acked-by: Roland Stigge <stigge@antcom.de>

1 files changed, 9 insertions, 7 deletions

diff --git a/drivers/hwmon/max6639.c b/drivers/hwmon/max6639.c
index 13e58a1992cf..a6760bacd915 100644
--- a/drivers/hwmon/max6639.c
+++ b/drivers/hwmon/max6639.c
@@ -429,9 +429,9 @@ static int max6639_init_client(struct i2c_client *client)
         struct max6639_data *data = i2c_get_clientdata(client);
         struct max6639_platform_data *max6639_info =
                 client->dev.platform_data;
-        int i = 0;
+        int i;
         int rpm_range = 1; /* default: 4000 RPM */
-        int err = 0;
+        int err;
 
         /* Reset chip to default values, see below for GCONFIG setup */
         err = i2c_smbus_write_byte_data(client, MAX6639_REG_GCONFIG,
@@ -446,11 +446,6 @@ static int max6639_init_client(struct i2c_client *client)
         else
                 data->ppr = 2;
         data->ppr -= 1;
-        err = i2c_smbus_write_byte_data(client,
-                        MAX6639_REG_FAN_PPR(i),
-                        data->ppr << 5);
-        if (err)
-                goto exit;
 
         if (max6639_info)
                 rpm_range = rpm_range_to_reg(max6639_info->rpm_range);
@@ -458,6 +453,13 @@ static int max6639_init_client(struct i2c_client *client)
 
         for (i = 0; i < 2; i++) {
 
+                /* Set Fan pulse per revolution */
+                err = i2c_smbus_write_byte_data(client,
+                                MAX6639_REG_FAN_PPR(i),
+                                data->ppr << 6);
+                if (err)
+                        goto exit;
+
                 /* Fans config PWM, RPM */
                 err = i2c_smbus_write_byte_data(client,
                         MAX6639_REG_FAN_CONFIG1(i),