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drm/i915: Always call to intel_display_set_init_power() in resume_early. 

commit d13a8479f3 upstream.

intel_power_domains_init_hw() calls set_init_power, but when using
runtime power management this call is skipped. This prevents hw readout
from taking place.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104172
Link: https://patchwork.freedesktop.org/patch/msgid/20180116155324.75120-1-maarten.lankhorst@linux.intel.com
Fixes: bc87229f32 ("drm/i915/skl: enable PC9/10 power states during suspend-to-idle")
Cc: Nivedita Swaminathan <nivedita.swaminathan@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: <stable@vger.kernel.org> # v4.5+
Reviewed-by: Imre Deak <imre.deak@intel.com>
(cherry picked from commit ac25dfed15)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
Maarten Lankhorst 2018-01-16 16:53:24 +01:00 committed by Greg Kroah-Hartman
parent 07b7495465
commit 0547d11350
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/i915_drv.c
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@ -1806,6 +1806,8 @@ static int i915_drm_resume_early(struct drm_device *dev)
if (IS_GEN9_LP(dev_priv) ||
!(dev_priv->suspended_to_idle && dev_priv->csr.dmc_payload))
intel_power_domains_init_hw(dev_priv, true);
else
intel_display_set_init_power(dev_priv, true);
i915_gem_sanitize(dev_priv);