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| author | Dave Airlie <airlied@redhat.com> | 2014-06-05 12:28:59 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2014-06-05 12:28:59 +0200 |
| commit | 8d4ad9d4bb0a618c975a32d77087694ec6336f68 (patch) | |
| tree | d18d12688174a623e3503b11118e44ef8186c90b /drivers/gpu/drm/i915/intel_panel.c | |
| parent | drm: add drm_fb_helper_restore_fbdev_mode_unlocked() (diff) | |
| parent | Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux (diff) | |
| download | linux-8d4ad9d4bb0a618c975a32d77087694ec6336f68.tar.xz linux-8d4ad9d4bb0a618c975a32d77087694ec6336f68.zip | |
Merge commit '9e9a928eed8796a0a1aaed7e0b676db86ba84594' into drm-next
Merge drm-fixes into drm-next.
Both i915 and radeon need this done for later patches.
Conflicts:
drivers/gpu/drm/drm_crtc_helper.c
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/i915/i915_gem.c
drivers/gpu/drm/i915/i915_gem_execbuffer.c
drivers/gpu/drm/i915/i915_gem_gtt.c
Diffstat (limited to 'drivers/gpu/drm/i915/intel_panel.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_panel.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 2e1338a5d488..5e6c888b4928 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -567,6 +567,7 @@ void intel_panel_set_backlight(struct intel_connector *connector, u32 level, enum pipe pipe = intel_get_pipe_from_connector(connector); u32 freq; unsigned long flags; + u64 n; if (!panel->backlight.present || pipe == INVALID_PIPE) return; @@ -577,10 +578,9 @@ void intel_panel_set_backlight(struct intel_connector *connector, u32 level, /* scale to hardware max, but be careful to not overflow */ freq = panel->backlight.max; - if (freq < max) - level = level * freq / max; - else - level = freq / max * level; + n = (u64)level * freq; + do_div(n, max); + level = n; panel->backlight.level = level; if (panel->backlight.device) |