[PATCH 3/8] drm/i915/alpm: Replace is_edp() with alpm_is_possible()

[Animesh Manna <animesh.manna@intel.com>]

Add a separate alpm_is_possible() which will check for both edp and dp.

Cc: Jouni Högander <jouni.hogander@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
---
 drivers/gpu/drm/i915/display/intel_alpm.c | 16 +++++++++++++---
 drivers/gpu/drm/i915/display/intel_alpm.h |  1 +
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_alpm.c b/drivers/gpu/drm/i915/display/intel_alpm.c
index 6372f533f65b..973791f8956c 100644
--- a/drivers/gpu/drm/i915/display/intel_alpm.c
+++ b/drivers/gpu/drm/i915/display/intel_alpm.c
@@ -41,6 +41,16 @@ bool intel_alpm_is_alpm_aux_less(struct intel_dp *intel_dp,
 		(crtc_state->has_lobf && intel_alpm_aux_less_wake_supported(intel_dp));
 }
 
+bool intel_alpm_is_possible(struct intel_dp *intel_dp)
+{
+	struct intel_display *display = to_intel_display(intel_dp);
+
+	return (DISPLAY_VER(display) >= 12 && intel_dp->alpm_dpcd) ||
+	       (DISPLAY_VER(display) >= 35 &&
+		intel_dp->lttpr_common_caps[DP_LTTPR_ALPM_CAPABILITIES -
+					    DP_LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV]);
+}
+
 void intel_alpm_init(struct intel_dp *intel_dp)
 {
 	u8 dpcd;
@@ -265,7 +275,7 @@ void intel_alpm_lobf_compute_config(struct intel_dp *intel_dp,
 	if (intel_dp->alpm.sink_alpm_error)
 		return;
 
-	if (!intel_dp_is_edp(intel_dp))
+	if (!intel_alpm_is_possible(intel_dp))
 		return;
 
 	if (DISPLAY_VER(display) < 20)
@@ -416,7 +426,7 @@ void intel_alpm_pre_plane_update(struct intel_atomic_state *state,
 
 		intel_dp = enc_to_intel_dp(encoder);
 
-		if (!intel_dp_is_edp(intel_dp))
+		if (!intel_alpm_is_possible(intel_dp))
 			continue;
 
 		if (old_crtc_state->has_lobf) {
@@ -468,7 +478,7 @@ void intel_alpm_post_plane_update(struct intel_atomic_state *state,
 
 		intel_dp = enc_to_intel_dp(encoder);
 
-		if (intel_dp_is_edp(intel_dp)) {
+		if (intel_alpm_is_possible(intel_dp)) {
 			intel_alpm_enable_sink(intel_dp, crtc_state);
 			intel_alpm_configure(intel_dp, crtc_state);
 		}
diff --git a/drivers/gpu/drm/i915/display/intel_alpm.h b/drivers/gpu/drm/i915/display/intel_alpm.h
index 53599b464dea..0c9972faa2e0 100644
--- a/drivers/gpu/drm/i915/display/intel_alpm.h
+++ b/drivers/gpu/drm/i915/display/intel_alpm.h
@@ -15,6 +15,7 @@ struct intel_connector;
 struct intel_atomic_state;
 struct intel_crtc;
 
+bool intel_alpm_is_possible(struct intel_dp *intel_dp);
 void intel_alpm_init(struct intel_dp *intel_dp);
 bool intel_alpm_compute_params(struct intel_dp *intel_dp,
 			       struct intel_crtc_state *crtc_state);
-- 
2.29.0