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drm/i915/bxt: Disable power well support

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BXT power well support is not yet stable.  Starting with patch

        commit 9f836f9016
        Author: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
        Date:   Mon Nov 16 16:20:01 2015 +0100

            drm/i915/gen9: Turn DC handling into a power well

DPMS off operations may actually cause the entire system to powerdown or
reboot.  Disable power well support for now until Broxton gets fixes
similar to what we have for SKL.

Cc: Imre Deak <imre.deak@intel.com>
Cc: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
References: http://lists.freedesktop.org/archives/intel-gfx/2015-November/081037.html
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1448990818-11005-1-git-send-email-matthew.d.roper@intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
This commit is contained in:
Matt Roper
2015-12-01 09:26:58 -08:00
parent 7905df29b9
commit 1802419957
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/i915/intel_runtime_pm.c
View File

@ -1911,6 +1911,11 @@ sanitize_disable_power_well_option(const struct drm_i915_private *dev_priv,
if (disable_power_well >= 0)
return !!disable_power_well;
if (IS_BROXTON(dev_priv)) {
DRM_DEBUG_KMS("Disabling display power well support\n");
return 0;
}
return 1;
}