drm/i915/dp: Made intel_dp_adjust_train() non-static

vswing/pre-emphasis adjustment calculation is needed in processing
of auto phy compliance request other than link training, so have
made non-static function.

No functional change.

v1: initial patch.
v2:
- used "intel_dp" prefix in function name. (Jani)
- used array notation instead pointer for link_status. (Ville)
v3: Scrapped the initial patch, modified commit description accordingly.
- made non-static function and used intel_dp prefix. (Jani, Manasi)

Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200316103759.12867-4-animesh.manna@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
index a7defb3..e4f1843 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
@@ -34,9 +34,8 @@ intel_dp_dump_link_status(const u8 link_status[DP_LINK_STATUS_SIZE])
                      link_status[3], link_status[4], link_status[5]);
 }
 
-static void
-intel_get_adjust_train(struct intel_dp *intel_dp,
-                      const u8 link_status[DP_LINK_STATUS_SIZE])
+void intel_dp_get_adjust_train(struct intel_dp *intel_dp,
+                              const u8 link_status[DP_LINK_STATUS_SIZE])
 {
        u8 v = 0;
        u8 p = 0;
@@ -219,7 +218,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
                voltage = intel_dp->train_set[0] & DP_TRAIN_VOLTAGE_SWING_MASK;
 
                /* Update training set as requested by target */
-               intel_get_adjust_train(intel_dp, link_status);
+               intel_dp_get_adjust_train(intel_dp, link_status);
                if (!intel_dp_update_link_train(intel_dp)) {
                        drm_err(&i915->drm,
                                "failed to update link training\n");
@@ -338,7 +337,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
                }
 
                /* Update training set as requested by target */
-               intel_get_adjust_train(intel_dp, link_status);
+               intel_dp_get_adjust_train(intel_dp, link_status);
                if (!intel_dp_update_link_train(intel_dp)) {
                        drm_err(&i915->drm,
                                "failed to update link training\n");

diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.h b/drivers/gpu/drm/i915/display/intel_dp_link_training.h
index 174566a..01f1dab 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.h
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.h
@@ -6,8 +6,12 @@
 #ifndef __INTEL_DP_LINK_TRAINING_H__
 #define __INTEL_DP_LINK_TRAINING_H__
 
+#include <drm/drm_dp_helper.h>
+
 struct intel_dp;
 
+void intel_dp_get_adjust_train(struct intel_dp *intel_dp,
+                              const u8 link_status[DP_LINK_STATUS_SIZE]);
 void intel_dp_start_link_train(struct intel_dp *intel_dp);
 void intel_dp_stop_link_train(struct intel_dp *intel_dp);