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| Rev 5060 | Rev 5354 | ||
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| Line 394... | Line 394... | ||
| 394 | } |
394 | } |
| Line 395... | Line 395... | ||
| 395 | 395 | ||
| 396 | return -EINVAL; |
396 | return -EINVAL; |
| Line -... | Line 397... | ||
| - | 397 | } |
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| - | 398 | ||
| - | 399 | /* |
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| - | 400 | * If the vendor backlight interface is not in use and ACPI backlight interface |
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| - | 401 | * is broken, do not bother processing backlight change requests from firmware. |
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| - | 402 | */ |
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| - | 403 | static bool should_ignore_backlight_request(void) |
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| - | 404 | { |
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| - | 405 | return acpi_video_backlight_support() && |
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| - | 406 | !acpi_video_verify_backlight_support(); |
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| 397 | } |
407 | } |
| 398 | 408 | ||
| 399 | static u32 asle_set_backlight(struct drm_device *dev, u32 bclp) |
409 | static u32 asle_set_backlight(struct drm_device *dev, u32 bclp) |
| 400 | { |
410 | { |
| 401 | struct drm_i915_private *dev_priv = dev->dev_private; |
411 | struct drm_i915_private *dev_priv = dev->dev_private; |
| Line 402... | Line 412... | ||
| 402 | struct intel_connector *intel_connector; |
412 | struct intel_connector *intel_connector; |
| Line 403... | Line -... | ||
| 403 | struct opregion_asle __iomem *asle = dev_priv->opregion.asle; |
- | |
| 404 | - | ||
| 405 | DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp); |
- | |
| 406 | - | ||
| 407 | /* |
413 | struct opregion_asle __iomem *asle = dev_priv->opregion.asle; |
| 408 | * If the acpi_video interface is not supposed to be used, don't |
414 | |
| 409 | * bother processing backlight level change requests from firmware. |
415 | DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp); |
| 410 | */ |
416 | |
| Line 411... | Line 417... | ||
| 411 | if (!acpi_video_verify_backlight_support()) { |
417 | if (should_ignore_backlight_request()) { |