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path: root/drivers/gpu/drm/i915/intel_opregion.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_opregion.c')
-rw-r--r--drivers/gpu/drm/i915/intel_opregion.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c
index cfb8fb68f09..119771ff46a 100644
--- a/drivers/gpu/drm/i915/intel_opregion.c
+++ b/drivers/gpu/drm/i915/intel_opregion.c
@@ -173,7 +173,7 @@ static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
return ASLE_BACKLIGHT_FAILED;
intel_panel_set_backlight(dev, bclp, 255);
- iowrite32((bclp*0x64)/0xff | ASLE_CBLV_VALID, &asle->cblv);
+ iowrite32(DIV_ROUND_UP(bclp * 100, 255) | ASLE_CBLV_VALID, &asle->cblv);
return 0;
}