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path: root/drivers/gpu/drm/radeon/rv770.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/rv770.c')
-rw-r--r--drivers/gpu/drm/radeon/rv770.c23
1 files changed, 14 insertions, 9 deletions
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 491dc9000655..2211a323db41 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -78,18 +78,23 @@ u32 rv770_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base)
}
/* get temperature in millidegrees */
-u32 rv770_get_temp(struct radeon_device *rdev)
+int rv770_get_temp(struct radeon_device *rdev)
{
u32 temp = (RREG32(CG_MULT_THERMAL_STATUS) & ASIC_T_MASK) >>
ASIC_T_SHIFT;
- u32 actual_temp = 0;
-
- if ((temp >> 9) & 1)
- actual_temp = 0;
- else
- actual_temp = (temp >> 1) & 0xff;
-
- return actual_temp * 1000;
+ int actual_temp;
+
+ if (temp & 0x400)
+ actual_temp = -256;
+ else if (temp & 0x200)
+ actual_temp = 255;
+ else if (temp & 0x100) {
+ actual_temp = temp & 0x1ff;
+ actual_temp |= ~0x1ff;
+ } else
+ actual_temp = temp & 0xff;
+
+ return (actual_temp * 1000) / 2;
}
void rv770_pm_misc(struct radeon_device *rdev)