DC3C0 could have already exit so no need to always sleep, so lets
read the register with the state.
Cc: Imre Deak <imre.d...@intel.com>
Cc: Anshuman Gupta <anshuman.gu...@intel.com>
Signed-off-by: José Roberto de Souza <jose.so...@intel.com>
---
drivers/gpu/drm/i915/display/intel_display_power.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c
b/drivers/gpu/drm/i915/display/intel_display_power.c
index 21561acfa3ac..1075e4edd2b3 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -807,7 +807,7 @@ static void tgl_disable_dc3co(struct drm_i915_private
*dev_priv)
/*
* Delay of 200us DC3CO Exit time B.Spec 49196
*/
- usleep_range(200, 210);
+ intel_de_wait_for_set(dev_priv, DC_STATE_EN, DC_STATE_DC3CO_STATUS, 1);
}
static void bxt_enable_dc9(struct drm_i915_private *dev_priv)
--
2.25.0
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