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drm/i915: Do not start connector polling on headless sku

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Connector polling is waking up the polled device. Polling
is unnecessary if our device is known to not have display.

Fix this and save some power by disabling starting connector
polling when we are having headless sku. Use information from
opregion.

v2: Move headless sku check into INTEL_DISPLAY_ENABLED macro

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220610085429.52935-4-jouni.hogander@intel.com
This commit is contained in:
Jouni Högander 2022-06-10 11:54:29 +03:00 committed by Jani Nikula
parent 04770b082e
commit d6346ae077
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/i915/i915_drv.h
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@ -1302,7 +1302,9 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
/* Only valid when HAS_DISPLAY() is true */
#define INTEL_DISPLAY_ENABLED(dev_priv) \
(drm_WARN_ON(&(dev_priv)->drm, !HAS_DISPLAY(dev_priv)), !(dev_priv)->params.disable_display)
(drm_WARN_ON(&(dev_priv)->drm, !HAS_DISPLAY(dev_priv)), \
!(dev_priv)->params.disable_display && \
!intel_opregion_headless_sku(dev_priv))
#define HAS_GUC_DEPRIVILEGE(dev_priv) \
(INTEL_INFO(dev_priv)->has_guc_deprivilege)