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drm/i915: Add a module parameter to ignore lid status

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Seems like we are forever to be cursed with buggy firmware, so allow the
user to explicitly set the panel connection status.

Of secondary utility for cases where I run laptops with the lid closed,
but still want to configure the LVDS.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-02-17 13:44:48 +00:00
parent c872522663
commit fca8740925
3 changed files with 9 additions and 0 deletions
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3
drivers/gpu/drm/i915/i915_drv.c
View file

@ -43,6 +43,9 @@ module_param_named(modeset, i915_modeset, int, 0400);
unsigned int i915_fbpercrtc = 0;
module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
int i915_panel_ignore_lid = 0;
module_param_named(panel_ignore_lid, i915_panel_ignore_lid, int, 0600);
unsigned int i915_powersave = 1;
module_param_named(powersave, i915_powersave, int, 0600);

1
drivers/gpu/drm/i915/i915_drv.h
View file

@ -958,6 +958,7 @@ enum intel_chip_family {
extern struct drm_ioctl_desc i915_ioctls[];
extern int i915_max_ioctl;
extern unsigned int i915_fbpercrtc;
extern int i915_panel_ignore_lid;
extern unsigned int i915_powersave;
extern unsigned int i915_lvds_downclock;
extern unsigned int i915_panel_use_ssc;

5
drivers/gpu/drm/i915/intel_panel.c
View file

@ -287,6 +287,11 @@ intel_panel_detect(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
if (i915_panel_ignore_lid)
return i915_panel_ignore_lid > 0 ?
connector_status_connected :
connector_status_disconnected;
/* Assume that the BIOS does not lie through the OpRegion... */
if (dev_priv->opregion.lid_state)
return ioread32(dev_priv->opregion.lid_state) & 0x1 ?