diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_panel.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_panel.c | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 41d463573baa..c758ad277473 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -275,7 +275,7 @@ static void intel_panel_actually_set_backlight(struct drm_device *dev, u32 level } tmp = I915_READ(BLC_PWM_CTL); - if (INTEL_INFO(dev)->gen < 4) + if (INTEL_INFO(dev)->gen < 4) level <<= 1; tmp &= ~BACKLIGHT_DUTY_CYCLE_MASK; I915_WRITE(BLC_PWM_CTL, tmp | level); @@ -374,26 +374,23 @@ static void intel_panel_init_backlight(struct drm_device *dev) enum drm_connector_status intel_panel_detect(struct drm_device *dev) { -#if 0 struct drm_i915_private *dev_priv = dev->dev_private; -#endif - - if (i915_panel_ignore_lid) - return i915_panel_ignore_lid > 0 ? - connector_status_connected : - connector_status_disconnected; - /* opregion lid state on HP 2540p is wrong at boot up, - * appears to be either the BIOS or Linux ACPI fault */ -#if 0 /* Assume that the BIOS does not lie through the OpRegion... */ - if (dev_priv->opregion.lid_state) + if (!i915_panel_ignore_lid && dev_priv->opregion.lid_state) { return ioread32(dev_priv->opregion.lid_state) & 0x1 ? connector_status_connected : connector_status_disconnected; -#endif + } - return connector_status_unknown; + switch (i915_panel_ignore_lid) { + case -2: + return connector_status_connected; + case -1: + return connector_status_disconnected; + default: + return connector_status_unknown; + } } #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE |