commit: 2f2da1ac0ba5b6cc6e1957c4da5ff20e67d8442b
From: Chris D Schimp <[email protected]>
Date: Mon, 20 Feb 2012 17:44:59 -0500
Subject: 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 <[email protected]>
[[email protected]: Merged two patches into one]
Signed-off-by: Guenter Roeck <[email protected]>
Cc: [email protected] # 3.0+
Acked-by: Roland Stigge <[email protected]>
---
 drivers/hwmon/max6639.c |   16 +++++++++-------
 1 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/hwmon/max6639.c b/drivers/hwmon/max6639.c
index 13e58a1..a6760ba 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),
-- 
1.7.3.4
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