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Commit 628c6d27 authored by Guenter Roeck's avatar Guenter Roeck
Browse files

hwmon: (max1619) Fix critical alarm display 



The overtemperature status bit, which is used to display critical alarm status,
matches the output of the OVERT signal 1:1. If that signal is active-low, the
bit will read 1 if there is no alarm. It is therefore necessary to reverse
the bit in this case.

Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 175c490c

drivers/hwmon/max1619.c

+5 −0
Original line number Diff line number Diff line
@@ -325,6 +325,7 @@ static struct max1619_data *max1619_update_device(struct device *dev) 
{

	struct i2c_client *client = to_i2c_client(dev);

	struct max1619_data *data = i2c_get_clientdata(client);

	int config;



	mutex_lock(&data->update_lock);
@@ -344,6 +345,10 @@ static struct max1619_data *max1619_update_device(struct device *dev) 
					MAX1619_REG_R_TCRIT_HYST);

		data->alarms = i2c_smbus_read_byte_data(client,

					MAX1619_REG_R_STATUS);

		/* If OVERT polarity is low, reverse alarm bit */

		config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG);

		if (!(config & 0x20))

			data->alarms ^= 0x02;



		data->last_updated = jiffies;

		data->valid = 1;