@@ -2529,7 +2529,6 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_encoder *intel_encoder;
struct intel_sdvo *intel_sdvo;
- u32 hotplug_mask;
int i;
intel_sdvo = kzalloc(sizeof(struct intel_sdvo), GFP_KERNEL);
@@ -2561,19 +2560,6 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
}
}
- hotplug_mask = 0;
- if (IS_G4X(dev)) {
- hotplug_mask = intel_sdvo->is_sdvob ?
- SDVOB_HOTPLUG_INT_STATUS_G4X : SDVOC_HOTPLUG_INT_STATUS_G4X;
- } else if (IS_GEN4(dev)) {
- hotplug_mask = intel_sdvo->is_sdvob ?
- SDVOB_HOTPLUG_INT_STATUS_I965 : SDVOC_HOTPLUG_INT_STATUS_I965;
- } else {
- hotplug_mask = intel_sdvo->is_sdvob ?
- SDVOB_HOTPLUG_INT_STATUS_I915 : SDVOC_HOTPLUG_INT_STATUS_I915;
- }
- dev_priv->hotplug_supported_mask |= hotplug_mask;
-
drm_encoder_helper_add(&intel_encoder->base, &intel_sdvo_helper_funcs);
/* In default case sdvo lvds is false */
@@ -2595,6 +2581,24 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
goto err;
}
+ /* Only enable the hotplug irq if we need it, to work around noisy
+ * hotplug lines.
+ */
+ if (intel_sdvo->hotplug_active[0] & 0x3) {
+ u32 hotplug_mask;
+ if (IS_G4X(dev)) {
+ hotplug_mask = intel_sdvo->is_sdvob ?
+ SDVOB_HOTPLUG_INT_STATUS_G4X : SDVOC_HOTPLUG_INT_STATUS_G4X;
+ } else if (IS_GEN4(dev)) {
+ hotplug_mask = intel_sdvo->is_sdvob ?
+ SDVOB_HOTPLUG_INT_STATUS_I965 : SDVOC_HOTPLUG_INT_STATUS_I965;
+ } else {
+ hotplug_mask = intel_sdvo->is_sdvob ?
+ SDVOB_HOTPLUG_INT_STATUS_I915 : SDVOC_HOTPLUG_INT_STATUS_I915;
+ }
+ dev_priv->hotplug_supported_mask |= hotplug_mask;
+ }
+
intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo, sdvo_reg);
/* Set the input timing to the screen. Assume always input 0. */
Avoid constant wakeups caused by noisy irq lines when we don't even care about the irq. This should be particularly useful for i945g/gm where the hotplug has been disabled: commit 768b107e4b3be0acf6f58e914afe4f337c00932b Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Fri May 4 11:29:56 2012 +0200 drm/i915: disable sdvo hotplug on i945g/gm Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=38442 Signed-off-by: Jani Nikula <jani.nikula@intel.com> --- N.B. This really needs a Tested-by from the bug reporter. --- drivers/gpu/drm/i915/intel_sdvo.c | 32 ++++++++++++++++++-------------- 1 file changed, 18 insertions(+), 14 deletions(-)