[PATCH v4 09/10] drm/i915/alpm: Replace is_edp() with alpm_is_possible()

[Animesh Manna]

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

Cc: Jouni Högander <jouni.hogan...@intel.com>
Signed-off-by: Animesh Manna <animesh.ma...@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 33620f95ecc5..87c7c1f6e17f 100644
--- a/drivers/gpu/drm/i915/display/intel_alpm.c
+++ b/drivers/gpu/drm/i915/display/intel_alpm.c
@@ -64,6 +64,16 @@ void intel_alpm_get_sink_capability(struct intel_dp 
*intel_dp)
        intel_dp->alpm_dpcd = dpcd;
 }
 
+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]);
+}
+
 static int get_silence_period_symbols(const struct intel_crtc_state 
*crtc_state)
 {
        return SILENCE_PERIOD_TIME * 
intel_dp_link_symbol_clock(crtc_state->port_clock) /
@@ -341,7 +351,7 @@ 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)
@@ -492,7 +502,7 @@ 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) {
@@ -544,7 +554,7 @@ 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 bcc354a46a1d..05416f64f418 100644
--- a/drivers/gpu/drm/i915/display/intel_alpm.h
+++ b/drivers/gpu/drm/i915/display/intel_alpm.h
@@ -17,6 +17,7 @@ struct intel_crtc;
 
 bool intel_alpm_source_supported(struct intel_connector *connector);
 void intel_alpm_get_sink_capability(struct intel_dp *intel_dp);
+bool intel_alpm_is_possible(struct intel_dp *intel_dp);
 bool intel_alpm_compute_params(struct intel_dp *intel_dp,
                               struct intel_crtc_state *crtc_state);
 void intel_alpm_lobf_compute_config(struct intel_dp *intel_dp,
-- 
2.29.0