Commit 1035a9e3 authored by Axel Lin's avatar Axel Lin Committed by Guenter Roeck

hwmon: (adm1029) Ensure the fan_div cache is updated in set_fan_div

Writing to fanX_div does not clear the cache. As a result, reading
from fanX_div may return the old value for up to two seconds
after writing a new value.

This patch ensures the fan_div cache is updated in set_fan_div().
Reported-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarAxel Lin <axel.lin@ingics.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent df86754b
...@@ -232,6 +232,9 @@ static ssize_t set_fan_div(struct device *dev, ...@@ -232,6 +232,9 @@ static ssize_t set_fan_div(struct device *dev,
/* Update the value */ /* Update the value */
reg = (reg & 0x3F) | (val << 6); reg = (reg & 0x3F) | (val << 6);
/* Update the cache */
data->fan_div[attr->index] = reg;
/* Write value */ /* Write value */
i2c_smbus_write_byte_data(client, i2c_smbus_write_byte_data(client,
ADM1029_REG_FAN_DIV[attr->index], reg); ADM1029_REG_FAN_DIV[attr->index], reg);
......
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