| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 021/104] hwmon: (max31790) Set correct PWM value | Date | Fri, 22 Dec 2017 09:45:47 +0100 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Alex Hemme <ahemme@cisco.com>
[ Upstream commit dd7406dd334a98ada3ff5371847a3eeb4ba16313 ]
Traced fans not spinning to incorrect PWM value being written. The passed in value was written instead of the calulated value.
Fixes: 54187ff9d766 ("hwmon: (max31790) Convert to use new hwmon registration API") Signed-off-by: Alex Hemme <ahemme@cisco.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/hwmon/max31790.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/hwmon/max31790.c +++ b/drivers/hwmon/max31790.c @@ -311,7 +311,7 @@ static int max31790_write_pwm(struct dev data->pwm[channel] = val << 8; err = i2c_smbus_write_word_swapped(client, MAX31790_REG_PWMOUT(channel), - val); + data->pwm[channel]); break; case hwmon_pwm_enable: fan_config = data->fan_config[channel];
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