hwmon: (lm63) LM64 has a dedicated pin for tachometer

On the LM64, the tachometer function has a dedicated pin and fan speed
monitoring is always enabled.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>

1 files changed, 7 insertions, 3 deletions

diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c
index 75e3a15c2f61..0c4fff0a00a4 100644
--- a/drivers/hwmon/lm63.c
+++ b/drivers/hwmon/lm63.c
@@ -796,6 +796,9 @@ static void lm63_init_client(struct i2c_client *client)
                 i2c_smbus_write_byte_data(client, LM63_REG_CONFIG1,
                                           data->config);
         }
+        /* Tachometer is always enabled on LM64 */
+        if (data->kind == lm64)
+                data->config |= 0x04;
 
         /* We may need pwm1_freq before ever updating the client data */
         data->pwm1_freq = i2c_smbus_read_byte_data(client, LM63_REG_PWM_FREQ);
@@ -836,9 +839,10 @@ static void lm63_init_client(struct i2c_client *client)
         }
 
         /* Show some debug info about the LM63 configuration */
-        dev_dbg(&client->dev, "Alert/tach pin configured for %s\n",
-                (data->config & 0x04) ? "tachometer input" :
-                "alert output");
+        if (data->kind == lm63)
+                dev_dbg(&client->dev, "Alert/tach pin configured for %s\n",
+                        (data->config & 0x04) ? "tachometer input" :
+                        "alert output");
         dev_dbg(&client->dev, "PWM clock %s kHz, output frequency %u Hz\n",
                 (data->config_fan & 0x08) ? "1.4" : "360",
                 ((data->config_fan & 0x08) ? 700 : 180000) / data->pwm1_freq);