[PATCH 09/10] drm/i915: Avoid taking the PPS lock for non-eDP/VLV/CHV

From: Imre Deak <imre.deak@intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [PATCH 09/10] drm/i915: Avoid taking the PPS lock for non-eDP/VLV/CHV
Date: Fri,  3 May 2019 02:26:47 +0300	[thread overview]
Message-ID: <20190502232648.4450-10-imre.deak@intel.com> (raw)
In-Reply-To: <20190502232648.4450-1-imre.deak@intel.com>

On ICL we have to make sure that we enable the AUX power domain in a
controlled way (corresponding to the port's actual TypeC mode). Since
the PPS lock - which takes an AUX power ref - is only needed on
eDP/VLV/CHV avoid taking it in other cases.

Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index f56cbda59fb3..1ee9b7ebd801 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -6263,6 +6263,10 @@ void intel_dp_encoder_reset(struct drm_encoder *encoder)
 
 	intel_dp->reset_link_params = true;
 
+	if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv) &&
+	    !intel_dp_is_edp(intel_dp))
+		return;
+
 	with_pps_lock(intel_dp, wakeref) {
 		if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
 			intel_dp->active_pipe = vlv_active_pipe(intel_dp);
-- 
2.17.1

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