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| author | Alex Deucher <alexander.deucher@amd.com> | 2015-02-04 23:18:55 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2015-02-11 18:01:33 +0100 |
| commit | 082452e125fe27a9f43add2269dfa2341fb71d30 (patch) | |
| tree | 43a6eeeabd3d0f93b8726c6ffaaa6b344192bdda /drivers/gpu | |
| parent | Merge tag 'imx-drm-fixes-2015-01-28' of git://git.pengutronix.de/git/pza/linu... (diff) | |
| download | linux-082452e125fe27a9f43add2269dfa2341fb71d30.tar.xz linux-082452e125fe27a9f43add2269dfa2341fb71d30.zip | |
drm/radeon: use 0-255 rather than 0-100 for pwm fan range
0-255 seems to be the preferred range for the pwm interface.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_pm.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 91e1bd246cad..9f758d39420d 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -585,7 +585,7 @@ static ssize_t radeon_hwmon_set_pwm1_enable(struct device *dev, if (err) return err; - switch(value) { + switch (value) { case 1: /* manual, percent-based */ rdev->asic->dpm.fan_ctrl_set_mode(rdev, FDO_PWM_MODE_STATIC); break; @@ -608,7 +608,7 @@ static ssize_t radeon_hwmon_get_pwm1_max(struct device *dev, struct device_attribute *attr, char *buf) { - return sprintf(buf, "%i\n", 100); /* pwm uses percent-based fan-control */ + return sprintf(buf, "%i\n", 255); } static ssize_t radeon_hwmon_set_pwm1(struct device *dev, @@ -623,6 +623,8 @@ static ssize_t radeon_hwmon_set_pwm1(struct device *dev, if (err) return err; + value = (value * 100) / 255; + err = rdev->asic->dpm.set_fan_speed_percent(rdev, value); if (err) return err; @@ -642,6 +644,8 @@ static ssize_t radeon_hwmon_get_pwm1(struct device *dev, if (err) return err; + speed = (speed * 255) / 100; + return sprintf(buf, "%i\n", speed); } |