[PATCH v2 3/5] drm/i915/psr/cnl: Enable Y-coordinate support in source

From: "José Roberto de Souza" <jose.souza@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Subject: [PATCH v2 3/5] drm/i915/psr/cnl: Enable Y-coordinate support in source
Date: Fri, 16 Mar 2018 16:04:59 -0700	[thread overview]
Message-ID: <20180316230501.974-3-jose.souza@intel.com> (raw)
In-Reply-To: <20180316230501.974-1-jose.souza@intel.com>

From: "Souza, Jose" <jose.souza@intel.com>

For Geminilake and Cannonlake+ the Y-coordinate support must be
enabled in PSR2_CTL too.

Spec: 7713

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
---

v2: This is specific to Geminilake and Cannonlake+

 drivers/gpu/drm/i915/i915_reg.h  | 2 ++
 drivers/gpu/drm/i915/intel_psr.c | 6 ++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 1e000f3004cb..bac54f744913 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -3869,6 +3869,8 @@ enum {
 #define EDP_PSR2_CTL			_MMIO(0x6f900)
 #define   EDP_PSR2_ENABLE		(1<<31)
 #define   EDP_SU_TRACK_ENABLE		(1<<30)
+#define   EDP_Y_COORDINATE_VALID	(1<<26) /* GLK and CNL+ */
+#define   EDP_Y_COORDINATE_ENABLE	(1<<25) /* GLK and CNL+ */
 #define   EDP_MAX_SU_DISABLE_TIME(t)	((t)<<20)
 #define   EDP_MAX_SU_DISABLE_TIME_MASK	(0x1f<<20)
 #define   EDP_PSR2_TP2_TIME_500		(0<<8)
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 5593d1f3049a..c5eeb13cbcfd 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -417,8 +417,10 @@ static void hsw_activate_psr2(struct intel_dp *intel_dp)
 	/* FIXME: selective update is probably totally broken because it doesn't
 	 * mesh at all with our frontbuffer tracking. And the hw alone isn't
 	 * good enough. */
-	val |= EDP_PSR2_ENABLE |
-		EDP_SU_TRACK_ENABLE;
+	val |= EDP_PSR2_ENABLE | EDP_SU_TRACK_ENABLE;
+	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)) {
+		val |= EDP_Y_COORDINATE_VALID | EDP_Y_COORDINATE_ENABLE;
+	}
 
 	if (drm_dp_dpcd_readb(&intel_dp->aux,
 				DP_SYNCHRONIZATION_LATENCY_IN_SINK,
-- 
2.16.2

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