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hwmon: (gsc-hwmon) fix fan pwm setpoint show functions

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commit 9c62e22829 upstream.

The Linux hwmon sysfs API values for pwmX_auto_pointY_pwm represent an
integer value between 0 (0%) to 255 (100%) and the pwmX_auto_pointY_temp
represent millidegrees Celcius.

Commit a6d80df47e ("hwmon: (gsc-hwmon) fix fan pwm temperature
scaling") properly addressed the incorrect scaling in the
pwm_auto_point_temp_store implementation but erroneously scaled
the pwm_auto_point_pwm_show (pwm value) instead of the
pwm_auto_point_temp_show (temp value) resulting in:
 # cat /sys/class/hwmon/hwmon0/pwm1_auto_point6_pwm
 25500
 # cat /sys/class/hwmon/hwmon0/pwm1_auto_point6_temp
 4500

Fix the scaling of these attributes:
 # cat /sys/class/hwmon/hwmon0/pwm1_auto_point6_pwm
 255
 # cat /sys/class/hwmon/hwmon0/pwm1_auto_point6_temp
 45000

Fixes: a6d80df47e ("hwmon: (gsc-hwmon) fix fan pwm temperature scaling")
Cc: stable@vger.kernel.org
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Link: https://lore.kernel.org/r/20250718200259.1840792-1-tharvey@gateworks.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tim Harvey 2025-07-18 13:02:59 -07:00 • committed by Greg Kroah-Hartman
commit e26bd46c29
1 changed files with 2 additions and 2 deletions
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