[PATCH v5 12/15] 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 d23f3bdf1339..f3f6f40f9624 100644
--- a/drivers/gpu/drm/i915/display/intel_alpm.c
+++ b/drivers/gpu/drm/i915/display/intel_alpm.c
@@ -72,6 +72,16 @@ void intel_alpm_init(struct intel_dp *intel_dp)
        mutex_init(&intel_dp->alpm.lock);
 }
 
+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) /
@@ -519,7 +529,7 @@ 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)
@@ -685,7 +695,7 @@ void intel_alpm_lobf_disable(const struct intel_crtc_state 
*new_crtc_state)
 
                intel_dp = enc_to_intel_dp(encoder);
 
-               if (!intel_dp_is_edp(intel_dp))
+               if (!intel_alpm_is_possible(intel_dp))
                        continue;
 
                mutex_lock(&intel_dp->alpm.lock);
@@ -726,7 +736,7 @@ void intel_alpm_lobf_enable(const struct intel_crtc_state 
*new_crtc_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, new_crtc_state);
                        intel_alpm_configure(intel_dp, new_crtc_state);
                }
diff --git a/drivers/gpu/drm/i915/display/intel_alpm.h 
b/drivers/gpu/drm/i915/display/intel_alpm.h
index 7280865ed5f0..b0f6e2a9eede 100644
--- a/drivers/gpu/drm/i915/display/intel_alpm.h
+++ b/drivers/gpu/drm/i915/display/intel_alpm.h
@@ -18,6 +18,7 @@ struct intel_crtc;
 bool intel_alpm_source_supported(struct intel_connector *connector);
 void intel_alpm_init_dpcd(struct intel_dp *intel_dp);
 void intel_alpm_init(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