[Intel-gfx] [PATCH 1/8] drm/i915: reorder setup sequence to have irqs for output setup

[Daniel Vetter]

Otherwise the new&shiny irq-driven gmbus and dp aux code won't work that
well. Noticed since the dp aux code doesn't have an automatic fallback
with a timeout (since the hw provides for that already).

v2: Simple move drm_irq_install before intel_modeset_gem_init, as
suggested by Ben Widawsky.

Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/i915/i915_dma.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 2c09900..068b49b 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1325,12 +1325,14 @@ static int i915_load_modeset_init(struct drm_device *dev)
 	if (ret)
 		goto cleanup_gem_stolen;
 
-	intel_modeset_gem_init(dev);
-
 	ret = drm_irq_install(dev);
 	if (ret)
 		goto cleanup_gem;
 
+	/* Important: The output setup functions called by modeset_gem_init need
+	 * working irqs for e.g. gmbus transfers. */
+	intel_modeset_gem_init(dev);
+
 	/* Always safe in the mode setting case. */
 	/* FIXME: do pre/post-mode set stuff in core KMS code */
 	dev->vblank_disable_allowed = 1;
-- 
1.7.11.2