diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 5d127e068950..a9fb046b94a1 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8144,10 +8144,6 @@ intel_modeset_stage_output_state(struct drm_device *dev, DRM_DEBUG_KMS("encoder changed, full mode switch\n"); config->mode_changed = true; } - - /* Disable all disconnected encoders. */ - if (connector->base.status == connector_status_disconnected) - connector->new_encoder = NULL; } /* connector->new_encoder is now updated for all connectors. */ @@ -9167,6 +9163,23 @@ static void intel_sanitize_encoder(struct intel_encoder *encoder) * the crtc fixup. */ } +static void i915_redisable_vga(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + u32 vga_reg; + + if (HAS_PCH_SPLIT(dev)) + vga_reg = CPU_VGACNTRL; + else + vga_reg = VGACNTRL; + + if (I915_READ(vga_reg) != VGA_DISP_DISABLE) { + DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n"); + I915_WRITE(vga_reg, VGA_DISP_DISABLE); + POSTING_READ(vga_reg); + } +} + /* Scan out the current hw modeset state, sanitizes it and maps it into the drm * and i915 state tracking structures. */ void intel_modeset_setup_hw_state(struct drm_device *dev, @@ -9275,6 +9288,8 @@ void intel_modeset_setup_hw_state(struct drm_device *dev, intel_set_mode(&crtc->base, &crtc->base.mode, crtc->base.x, crtc->base.y, crtc->base.fb); } + + i915_redisable_vga(dev); } else { intel_modeset_update_staged_output_state(dev); } |