diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 434b1d1d3c8463f958fba9622910a09f88bf9fec..9a31211a60c6b1b4cb999ea7584069131bd92f1f 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -2570,7 +2570,6 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob) 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); @@ -2578,14 +2577,6 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob) if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps)) goto err; - /* Set up hotplug command - note paranoia about contents of reply. - * We assume that the hardware is in a sane state, and only touch - * the bits we think we understand. - */ - intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG, - &intel_sdvo->hotplug_active, 2); - intel_sdvo->hotplug_active[0] &= ~0x3; - if (intel_sdvo_output_setup(intel_sdvo, intel_sdvo->caps.output_flags) != true) { DRM_DEBUG_KMS("SDVO output failed to setup on %s\n", @@ -2593,6 +2584,12 @@ 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]) + 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. */