Commit 66e2c4c3 authored by Imre Deak's avatar Imre Deak

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: default avatarImre Deak <imre.deak@intel.com>
Reviewed-by: default avatarPatrik Jakobsson <patrik.jakobsson@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1456778945-5411-3-git-send-email-imre.deak@intel.com
parent a37baf3b
...@@ -2034,6 +2034,9 @@ static uint32_t get_allowed_dc_mask(const struct drm_i915_private *dev_priv, ...@@ -2034,6 +2034,9 @@ static uint32_t get_allowed_dc_mask(const struct drm_i915_private *dev_priv,
mask = 0; mask = 0;
} }
if (!i915.disable_power_well)
max_dc = 0;
if (enable_dc >= 0 && enable_dc <= max_dc) { if (enable_dc >= 0 && enable_dc <= max_dc) {
requested_dc = enable_dc; requested_dc = enable_dc;
} else if (enable_dc == -1) { } else if (enable_dc == -1) {
......
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