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>
diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c
index 75e3a15..0c4fff0 100644
--- a/drivers/hwmon/lm63.c
+++ b/drivers/hwmon/lm63.c
@@ -796,6 +796,9 @@
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 @@
}
/* 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);