[PATCH v2 09/40] drm/i915/bdw+: Enable PSR in any eDP port

Lucas De Marchi
2019-08-17T09:39:30Z

From: José Roberto de Souza <jose.souza@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@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
drivers/gpu/drm/i915/display/intel_psr.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 29169e2435e8..5d7baac1d7c9 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -589,11 +589,9 @@ 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 have a instance of 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