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path: root/drivers/gpu/drm/i915
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Diffstat (limited to 'drivers/gpu/drm/i915')
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c6
-rw-r--r--drivers/gpu/drm/i915/intel_panel.c25
2 files changed, 14 insertions, 17 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index a3d754dba5a9..f5b505a5b81e 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -47,11 +47,11 @@ MODULE_PARM_DESC(modeset,
unsigned int i915_fbpercrtc __always_unused = 0;
module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
-int i915_panel_ignore_lid __read_mostly = 0;
+int i915_panel_ignore_lid __read_mostly = 1;
module_param_named(panel_ignore_lid, i915_panel_ignore_lid, int, 0600);
MODULE_PARM_DESC(panel_ignore_lid,
- "Override lid status (0=autodetect [default], 1=lid open, "
- "-1=lid closed)");
+ "Override lid status (0=autodetect, 1=autodetect disabled [default], "
+ "-1=force lid closed, -2=force lid open)");
unsigned int i915_powersave __read_mostly = 1;
module_param_named(powersave, i915_powersave, int, 0600);
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