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drm/i915/gen9: Disable DC states if power well support is disabled 

If power well support is disabled via the i915.disable_power_well module
option we should never enable DC states. Currently we would enable DC
states even in this case during system suspend, where we need to disable
all power wells regardless of the disable_power_well option.

CC: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1456778945-5411-3-git-send-email-imre.deak@intel.com
This commit is contained in:
Imre Deak 2016-02-29 22:49:04 +02:00
parent a37baf3b83
commit 66e2c4c39c
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/intel_runtime_pm.c
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@ -2034,6 +2034,9 @@ static uint32_t get_allowed_dc_mask(const struct drm_i915_private *dev_priv,
mask = 0;
}
if (!i915.disable_power_well)
max_dc = 0;
if (enable_dc >= 0 && enable_dc <= max_dc) {
requested_dc = enable_dc;
} else if (enable_dc == -1) {