Since
commit ac9b8236551d1177fd07b56aef9b565d1864420d Author: Ville Syrjälä ville.syrjala@linux.intel.com Date: Fri Nov 27 18:55:26 2015 +0200
drm/i915: Introduce a gmbus power domain
gmbus also needs the power domain infrastructure right from the start, since as soon as we register the i2c controllers someone can use them.
v2: Adjust cleanup paths too (Chris).
v3: Rebase onto -nightly (totally bogus tree I had lying around) and also move dpio init head (Ville).
v4: Ville instead suggested to move gmbus setup later in the sequence, since it's only needed by the modeset code.
v5: Move even close to the actual user, right next to the comment that states where we really need gmbus (and interrupts!).
Cc: Ville Syrjälä ville.syrjala@linux.intel.com Cc: Patrik Jakobsson patrik.jakobsson@linux.intel.com Cc: Imre Deak imre.deak@intel.com Cc: Jani Nikula jani.nikula@intel.com Cc: Meelis Roos mroos@linux.ee Cc: Chris Wilson chris@chris-wilson.co.uk Fixes: ac9b8236551d ("drm/i915: Introduce a gmbus power domain") Cc: stable@vger.kernel.org References: http://www.spinics.net/lists/intel-gfx/msg83075.html Signed-off-by: Daniel Vetter daniel.vetter@intel.com ---
Meelis, can you pls retest this one?
Thanks, Daniel --- drivers/gpu/drm/i915/i915_dma.c | 6 +++--- drivers/gpu/drm/i915/intel_display.c | 2 ++ 2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 988a3806512a..d70d96fe553b 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -406,6 +406,8 @@ static int i915_load_modeset_init(struct drm_device *dev) if (ret) goto cleanup_gem_stolen;
+ intel_setup_gmbus(dev); + /* Important: The output setup functions called by modeset_init need * working irqs for e.g. gmbus and dp aux transfers. */ intel_modeset_init(dev); @@ -455,6 +457,7 @@ cleanup_gem: cleanup_irq: intel_guc_ucode_fini(dev); drm_irq_uninstall(dev); + intel_teardown_gmbus(dev); cleanup_gem_stolen: i915_gem_cleanup_stolen(dev); cleanup_vga_switcheroo: @@ -1028,7 +1031,6 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
/* Try to make sure MCHBAR is enabled before poking at it */ intel_setup_mchbar(dev); - intel_setup_gmbus(dev); intel_opregion_setup(dev);
i915_gem_load(dev); @@ -1101,7 +1103,6 @@ out_gem_unload: if (dev->pdev->msi_enabled) pci_disable_msi(dev->pdev);
- intel_teardown_gmbus(dev); intel_teardown_mchbar(dev); pm_qos_remove_request(&dev_priv->pm_qos); destroy_workqueue(dev_priv->gpu_error.hangcheck_wq); @@ -1203,7 +1204,6 @@ int i915_driver_unload(struct drm_device *dev)
intel_csr_ucode_fini(dev_priv);
- intel_teardown_gmbus(dev); intel_teardown_mchbar(dev);
destroy_workqueue(dev_priv->hotplug.dp_wq); diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 37945ddb4dad..ac0038bf4fbf 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -15971,6 +15971,8 @@ void intel_modeset_cleanup(struct drm_device *dev) mutex_lock(&dev->struct_mutex); intel_cleanup_gt_powersave(dev); mutex_unlock(&dev->struct_mutex); + + intel_teardown_gmbus(dev); }
/*