Commit 4538bfbf authored Nov 18, 2016 by Jared Bents Committed by Guenter Roeck Dec 02, 2016

hwmon: (amc6821) sign extension temperature



Converts the unsigned temperature values from the i2c read
to be sign extended as defined in the datasheet so that
negative temperatures are properly read.

Fixes: 28e6274d ("hwmon: (amc6821) Avoid forward declaration")
Signed-off-by: Jared Bents <jared.bents@rockwellcollins.com>
Signed-off-by: Matt Weber <matthew.weber@rockwellcollins.com>
[groeck: Dropped unnecessary continuation line]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

parent 13edb767

drivers/hwmon/amc6821.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -188,8 +188,8 @@ static struct amc6821_data amc6821_update_device(struct device dev)
		!data->valid) {

		for (i = 0; i < TEMP_IDX_LEN; i++)
		data->temp[i] = i2c_smbus_read_byte_data(client,
		temp_reg[i]);
		data->temp[i] = (int8_t)i2c_smbus_read_byte_data(
		client, temp_reg[i]);

		data->stat1 = i2c_smbus_read_byte_data(client,
		AMC6821_REG_STAT1);

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