[Intel-gfx] [PATCH 06/39] drm/i915/bdw+: Enable PSR in any eDP port

[Lucas De Marchi]

From: José Roberto de Souza <jose.souza at intel.com>

>From BDW+ the PSR registers moved from DDIA to transcoder, so any port
with a eDP panel connected can have PSR, so lets remove this limitation.

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
---
 drivers/gpu/drm/i915/display/intel_psr.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 36bdc16fb43b..6eedd8281e72 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -578,11 +578,10 @@ void intel_psr_compute_config(struct intel_dp *intel_dp,
 
 	/*
 	 * HSW spec explicitly says PSR is tied to port A.
-	 * BDW+ platforms have a instance of PSR registers per transcoder but
-	 * for now it only supports one instance of PSR, so lets keep it
-	 * hardcoded to PORT_A
+         * BDW+ platforms with DDI implementation of PSR have different
+	 * PSR registers per transcoder.
 	 */
-	if (dig_port->base.port != PORT_A) {
+	if (IS_HASWELL(dev_priv) && dig_port->base.port != PORT_A) {
 		DRM_DEBUG_KMS("PSR condition failed: Port not supported\n");
 		return;
 	}
-- 
2.21.0