diff options
| author | Jani Nikula <jani.nikula@intel.com> | 2013-04-12 15:18:36 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-04-25 14:07:07 +0200 |
| commit | d65406327345e5a5e0f697a3ffe3e53bc9b5d7c6 (patch) | |
| tree | 767bdbce5e87fa69e7a8c92df814c94249e8717c /drivers/gpu/drm/i915/intel_opregion.c | |
| parent | 2a7aceecf15a463ba6bfa83b6579e75bb4703cd9 (diff) | |
| download | linux-next-d65406327345e5a5e0f697a3ffe3e53bc9b5d7c6.tar.gz | |
drm/i915: keep max backlight internal to intel_panel.c
In preparation of adding locking to backlight, make max backlight value
(the modulation frequency the PWM duty cycle value must not exceed)
internal to intel_panel.c.
Have intel_panel_set_backlight() accept a caller defined range for level,
and scale input to max backlight value internally.
Clean up intel_panel_get_max_backlight() and usage internally.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_opregion.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_opregion.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c index 4d338740f2cb..42faa5885f5a 100644 --- a/drivers/gpu/drm/i915/intel_opregion.c +++ b/drivers/gpu/drm/i915/intel_opregion.c @@ -152,7 +152,6 @@ static u32 asle_set_backlight(struct drm_device *dev, u32 bclp) { struct drm_i915_private *dev_priv = dev->dev_private; struct opregion_asle __iomem *asle = dev_priv->opregion.asle; - u32 max; DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp); @@ -163,8 +162,7 @@ static u32 asle_set_backlight(struct drm_device *dev, u32 bclp) if (bclp > 255) return ASLE_BACKLIGHT_FAILED; - max = intel_panel_get_max_backlight(dev); - intel_panel_set_backlight(dev, bclp * max / 255); + intel_panel_set_backlight(dev, bclp, 255); iowrite32((bclp*0x64)/0xff | ASLE_CBLV_VALID, &asle->cblv); return 0; |