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). Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch> --- drivers/gpu/drm/i915/i915_dma.c | 5 ++--- drivers/gpu/drm/i915/i915_drv.h | 2 +- drivers/gpu/drm/i915/intel_display.c | 15 +++++++++++++-- 3 files changed, 16 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 2cba7b4..58320e0 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1325,9 +1325,8 @@ 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); + /* Note: This also enables irqs. */ + ret = intel_modeset_gem_init(dev); if (ret) goto cleanup_gem; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 9fce782..5c8d5e3 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1536,7 +1536,7 @@ static inline void intel_unregister_dsm_handler(void) { return; } /* modesetting */ extern void intel_modeset_init_hw(struct drm_device *dev); extern void intel_modeset_init(struct drm_device *dev); -extern void intel_modeset_gem_init(struct drm_device *dev); +extern int intel_modeset_gem_init(struct drm_device *dev); extern void intel_modeset_cleanup(struct drm_device *dev); extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state); extern void intel_modeset_setup_hw_state(struct drm_device *dev); diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 6658367..01289eb 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -7948,7 +7948,6 @@ void intel_modeset_init(struct drm_device *dev) /* Just disable it once at startup */ i915_disable_vga(dev); - intel_setup_outputs(dev); } static void @@ -8206,13 +8205,25 @@ void intel_modeset_setup_hw_state(struct drm_device *dev) drm_mode_config_reset(dev); } -void intel_modeset_gem_init(struct drm_device *dev) +int intel_modeset_gem_init(struct drm_device *dev) { + int ret; + intel_modeset_init_hw(dev); intel_setup_overlay(dev); + ret = drm_irq_install(dev); + if (ret) + return ret; + + /* Importanat: Output setup needs working interrupts to use + * interrupt-driven gmbus and dp aux. */ + intel_setup_outputs(dev); + intel_modeset_setup_hw_state(dev); + + return 0; } void intel_modeset_cleanup(struct drm_device *dev) -- 1.7.11.2