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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2010-08-22 13:18:16 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-09-08 10:23:58 +0100 |
| commit | a95735569312f2ab0c80425e2cd1e5cb0b4e1870 (patch) | |
| tree | 9daf28afa9b797b7f51486f4f759de9359b1e1e9 /drivers/gpu/drm/i915/intel_drv.h | |
| parent | 5d607f9b038ea03f5e5b3064d2f3993f9ea67e1e (diff) | |
| download | blackbird-op-linux-a95735569312f2ab0c80425e2cd1e5cb0b4e1870.tar.gz blackbird-op-linux-a95735569312f2ab0c80425e2cd1e5cb0b4e1870.zip | |
drm/i915: Refactor panel backlight controls
There were two instances of code to control the panel backlight and
neither handled the complete set of device variations.
Fixes:
Bug 29716 - [GM965] Regression: Backlight resets to minimum when changing resolution
https://bugs.freedesktop.org/show_bug.cgi?id=29716
And a bug on one of my PineView boxes which overflowed the backlight
value.
Incorporates part of a similar patch by Matthew Garrett that exposes a
native Intel backlight controller.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 949cfda4b49a..cdf9c78896cf 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -204,13 +204,16 @@ extern bool intel_pch_has_edp(struct drm_crtc *crtc); extern bool intel_dpd_is_edp(struct drm_device *dev); extern void intel_edp_link_config (struct intel_encoder *, int *, int *); - +/* intel_panel.c */ extern void intel_fixed_panel_mode(struct drm_display_mode *fixed_mode, struct drm_display_mode *adjusted_mode); extern void intel_pch_panel_fitting(struct drm_device *dev, int fitting_mode, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode); +extern u32 intel_panel_get_max_backlight(struct drm_device *dev); +extern u32 intel_panel_get_backlight(struct drm_device *dev); +extern void intel_panel_set_backlight(struct drm_device *dev, u32 level); extern int intel_panel_fitter_pipe (struct drm_device *dev); extern void intel_crtc_load_lut(struct drm_crtc *crtc); |
