diff options
| author | Emil Velikov | 2011-06-22 03:13:23 +0200 |
|---|---|---|
| committer | Ben Skeggs | 2011-06-23 08:04:39 +0200 |
| commit | 40ce4279e17e99bb98d02b8746fcf20abff8185b (patch) | |
| tree | ae82dc4ddb92bfd1d405ee7683b32d9b933728c5 /drivers/gpu/drm/nouveau/nouveau_temp.c | |
| parent | drm/nvc0: push prunk140 irq messages to debug loglevel (diff) | |
| download | kernel-qcow2-linux-40ce4279e17e99bb98d02b8746fcf20abff8185b.tar.gz kernel-qcow2-linux-40ce4279e17e99bb98d02b8746fcf20abff8185b.tar.xz kernel-qcow2-linux-40ce4279e17e99bb98d02b8746fcf20abff8185b.zip | |
drm/nouveau/temp: Fix signed/unsigned int logic
Many (all?) of the coefficients related to calculating the
correct temperature are signed integers
This patch correcly parses and stores those values
It also ensures that the default offset is 0 (previously 1)
Affected cards - the original nv50 and the nv40 family
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_temp.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_temp.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_temp.c b/drivers/gpu/drm/nouveau/nouveau_temp.c index 649b0413b09f..47630fb669d0 100644 --- a/drivers/gpu/drm/nouveau/nouveau_temp.c +++ b/drivers/gpu/drm/nouveau/nouveau_temp.c @@ -43,7 +43,7 @@ nouveau_temp_vbios_parse(struct drm_device *dev, u8 *temp) /* Set the default sensor's contants */ sensor->offset_constant = 0; - sensor->offset_mult = 1; + sensor->offset_mult = 0; sensor->offset_div = 1; sensor->slope_mult = 1; sensor->slope_div = 1; @@ -109,7 +109,7 @@ nouveau_temp_vbios_parse(struct drm_device *dev, u8 *temp) /* Read the entries from the table */ for (i = 0; i < entries; i++) { - u16 value = ROM16(temp[1]); + s16 value = ROM16(temp[1]); switch (temp[0]) { case 0x01: @@ -160,8 +160,8 @@ nv40_sensor_setup(struct drm_device *dev) struct drm_nouveau_private *dev_priv = dev->dev_private; struct nouveau_pm_engine *pm = &dev_priv->engine.pm; struct nouveau_pm_temp_sensor_constants *sensor = &pm->sensor_constants; - u32 offset = sensor->offset_mult / sensor->offset_div; - u32 sensor_calibration; + s32 offset = sensor->offset_mult / sensor->offset_div; + s32 sensor_calibration; /* set up the sensors */ sensor_calibration = 120 - offset - sensor->offset_constant; |