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| author | Dave Airlie <airlied@redhat.com> | 2014-08-05 03:04:59 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2014-08-05 03:04:59 +0400 |
| commit | 5d42f82a9b8c5168d75cf59307cd271feca94464 (patch) | |
| tree | a7049189a2c814589b3ad7e6e776fb736f980967 /drivers/gpu/drm/i915/intel_opregion.c | |
| parent | c759606c96dc052373d4c36ea383595da46b04e9 (diff) | |
| parent | 19583ca584d6f574384e17fe7613dfaeadcdc4a6 (diff) | |
| download | linux-5d42f82a9b8c5168d75cf59307cd271feca94464.tar.xz | |
Merge tag 'v3.16' into drm-next
Linux 3.16
backmerge requested by i915, nouveau and radeon authors
Conflicts:
drivers/gpu/drm/i915/i915_gem_render_state.c
drivers/gpu/drm/i915/intel_drv.h
Diffstat (limited to 'drivers/gpu/drm/i915/intel_opregion.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_opregion.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c index 97bc3eab9cd6..ca52ad2ae7d1 100644 --- a/drivers/gpu/drm/i915/intel_opregion.c +++ b/drivers/gpu/drm/i915/intel_opregion.c @@ -404,6 +404,15 @@ static u32 asle_set_backlight(struct drm_device *dev, u32 bclp) DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp); + /* + * If the acpi_video interface is not supposed to be used, don't + * bother processing backlight level change requests from firmware. + */ + if (!acpi_video_verify_backlight_support()) { + DRM_DEBUG_KMS("opregion backlight request ignored\n"); + return 0; + } + if (!(bclp & ASLE_BCLP_VALID)) return ASLC_BACKLIGHT_FAILED; |