[Intel-gfx] [PATCH] drm/i915: Don't check power domains state in intel_power_domains_init_hw()

[Imre Deak]

During power domains initialization we acquire power well references for
power wells in the INIT power domain. The rest of power wells - which
BIOS could have left enabled - we can only acquire references as needed
during display HW readout. Thus during initialization these latter power
wells can have a refcount of 0 while still being enabled. To avoid the
false-positive state mismatch error this causes remove the check from
intel_power_domains_init_hw() and rely on the state check in
intel_power_domains_enable() which follows the HW readout.

Fixes: 6dfc4a8f134f ("drm/i915: Verify power domains after enabling them")
Cc: Chris Wilson <chris at chris-wilson.co.uk>
References: https://bugs.freedesktop.org/show_bug.cgi?id=107411
Signed-off-by: Imre Deak <imre.deak at intel.com>
---
 drivers/gpu/drm/i915/intel_runtime_pm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index 2852395125cd..73d3a6ed3446 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -3767,9 +3767,8 @@ void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume)
 	if (!i915_modparams.disable_power_well)
 		intel_display_power_get(dev_priv, POWER_DOMAIN_INIT);
 	intel_power_domains_sync_hw(dev_priv);
+
 	power_domains->initializing = false;
-
-	intel_power_domains_verify_state(dev_priv);
 }
 
 /**
-- 
2.13.2