diff options
| author | David S. Miller <davem@davemloft.net> | 2014-10-08 16:22:22 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-08 16:22:22 -0400 |
| commit | 64b1f00a0830e1c53874067273a096b228d83d36 (patch) | |
| tree | dd547b0f1d431d0995b8eaa711cedb92399f31fe /drivers/gpu/drm/i915/intel_opregion.c | |
| parent | 16b99a4f6644d58c94acb4b4253e84049de588c5 (diff) | |
| parent | 5301e3e117d88ef0967ce278912e54757f1a31a2 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/gpu/drm/i915/intel_opregion.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_opregion.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c index ca52ad2ae7d..d8de1d5140a 100644 --- a/drivers/gpu/drm/i915/intel_opregion.c +++ b/drivers/gpu/drm/i915/intel_opregion.c @@ -396,6 +396,16 @@ int intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state) return -EINVAL; } +/* + * If the vendor backlight interface is not in use and ACPI backlight interface + * is broken, do not bother processing backlight change requests from firmware. + */ +static bool should_ignore_backlight_request(void) +{ + return acpi_video_backlight_support() && + !acpi_video_verify_backlight_support(); +} + static u32 asle_set_backlight(struct drm_device *dev, u32 bclp) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -404,11 +414,7 @@ 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()) { + if (should_ignore_backlight_request()) { DRM_DEBUG_KMS("opregion backlight request ignored\n"); return 0; } |