Since
commit ac9b8236551d1177fd07b56aef9b565d1864420d
Author: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxx>
Cc: Patrik Jakobsson <patrik.jakobsson@xxxxxxxxxxxxxxx>
Cc: Imre Deak <imre.deak@xxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: Meelis Roos <mroos@xxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Fixes: ac9b8236551d ("drm/i915: Introduce a gmbus power domain")
Cc: stable@xxxxxxxxxxxxxxx
References: http://www.spinics.net/lists/intel-gfx/msg83075.html
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
---
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);
}
/*
--
2.6.4
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