drm/i915/dp_link_training: convert to drm_device based logging macros.

Converts various instances of the printk based drm logging macros to the
struct drm_device based logging macros in
i915/display/intel_dp_link_training.c.
This also involves extracting the drm_i915_private device pointer from
the intel_dp type to use in the various macros.

Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200206080014.13759-3-wambui.karugax@gmail.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 2a1130d..a7defb3 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
@@ -130,6 +130,7 @@ static bool intel_dp_link_max_vswing_reached(struct intel_dp *intel_dp)
 static bool
 intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
 {
+       struct drm_i915_private *i915 = dp_to_i915(intel_dp);
        u8 voltage;
        int voltage_tries, cr_tries, max_cr_tries;
        bool max_vswing_reached = false;
@@ -143,9 +144,11 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
                              &link_bw, &rate_select);
 
        if (link_bw)
-               DRM_DEBUG_KMS("Using LINK_BW_SET value %02x\n", link_bw);
+               drm_dbg_kms(&i915->drm,
+                           "Using LINK_BW_SET value %02x\n", link_bw);
        else
-               DRM_DEBUG_KMS("Using LINK_RATE_SET value %02x\n", rate_select);
+               drm_dbg_kms(&i915->drm,
+                           "Using LINK_RATE_SET value %02x\n", rate_select);
 
        /* Write the link configuration data */
        link_config[0] = link_bw;
@@ -169,7 +172,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
        if (!intel_dp_reset_link_train(intel_dp,
                                       DP_TRAINING_PATTERN_1 |
                                       DP_LINK_SCRAMBLING_DISABLE)) {
-               DRM_ERROR("failed to enable link training\n");
+               drm_err(&i915->drm, "failed to enable link training\n");
                return false;
        }
 
@@ -193,22 +196,23 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
                drm_dp_link_train_clock_recovery_delay(intel_dp->dpcd);
 
                if (!intel_dp_get_link_status(intel_dp, link_status)) {
-                       DRM_ERROR("failed to get link status\n");
+                       drm_err(&i915->drm, "failed to get link status\n");
                        return false;
                }
 
                if (drm_dp_clock_recovery_ok(link_status, intel_dp->lane_count)) {
-                       DRM_DEBUG_KMS("clock recovery OK\n");
+                       drm_dbg_kms(&i915->drm, "clock recovery OK\n");
                        return true;
                }
 
                if (voltage_tries == 5) {
-                       DRM_DEBUG_KMS("Same voltage tried 5 times\n");
+                       drm_dbg_kms(&i915->drm,
+                                   "Same voltage tried 5 times\n");
                        return false;
                }
 
                if (max_vswing_reached) {
-                       DRM_DEBUG_KMS("Max Voltage Swing reached\n");
+                       drm_dbg_kms(&i915->drm, "Max Voltage Swing reached\n");
                        return false;
                }
 
@@ -217,7 +221,8 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
                /* Update training set as requested by target */
                intel_get_adjust_train(intel_dp, link_status);
                if (!intel_dp_update_link_train(intel_dp)) {
-                       DRM_ERROR("failed to update link training\n");
+                       drm_err(&i915->drm,
+                               "failed to update link training\n");
                        return false;
                }
 
@@ -231,7 +236,8 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
                        max_vswing_reached = true;
 
        }
-       DRM_ERROR("Failed clock recovery %d times, giving up!\n", max_cr_tries);
+       drm_err(&i915->drm,
+               "Failed clock recovery %d times, giving up!\n", max_cr_tries);
        return false;
 }
 
@@ -256,9 +262,11 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp)
                return DP_TRAINING_PATTERN_4;
        } else if (intel_dp->link_rate == 810000) {
                if (!source_tps4)
-                       DRM_DEBUG_KMS("8.1 Gbps link rate without source HBR3/TPS4 support\n");
+                       drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
+                                   "8.1 Gbps link rate without source HBR3/TPS4 support\n");
                if (!sink_tps4)
-                       DRM_DEBUG_KMS("8.1 Gbps link rate without sink TPS4 support\n");
+                       drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
+                                   "8.1 Gbps link rate without sink TPS4 support\n");
        }
        /*
         * Intel platforms that support HBR2 also support TPS3. TPS3 support is
@@ -271,9 +279,11 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp)
                return  DP_TRAINING_PATTERN_3;
        } else if (intel_dp->link_rate >= 540000) {
                if (!source_tps3)
-                       DRM_DEBUG_KMS(">=5.4/6.48 Gbps link rate without source HBR2/TPS3 support\n");
+                       drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
+                                   ">=5.4/6.48 Gbps link rate without source HBR2/TPS3 support\n");
                if (!sink_tps3)
-                       DRM_DEBUG_KMS(">=5.4/6.48 Gbps link rate without sink TPS3 support\n");
+                       drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
+                                   ">=5.4/6.48 Gbps link rate without sink TPS3 support\n");
        }
 
        return DP_TRAINING_PATTERN_2;
@@ -282,6 +292,7 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp)
 static bool
 intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
 {
+       struct drm_i915_private *i915 = dp_to_i915(intel_dp);
        int tries;
        u32 training_pattern;
        u8 link_status[DP_LINK_STATUS_SIZE];
@@ -295,7 +306,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
        /* channel equalization */
        if (!intel_dp_set_link_train(intel_dp,
                                     training_pattern)) {
-               DRM_ERROR("failed to start channel equalization\n");
+               drm_err(&i915->drm, "failed to start channel equalization\n");
                return false;
        }
 
@@ -303,7 +314,8 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
 
                drm_dp_link_train_channel_eq_delay(intel_dp->dpcd);
                if (!intel_dp_get_link_status(intel_dp, link_status)) {
-                       DRM_ERROR("failed to get link status\n");
+                       drm_err(&i915->drm,
+                               "failed to get link status\n");
                        break;
                }
 
@@ -311,23 +323,25 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
                if (!drm_dp_clock_recovery_ok(link_status,
                                              intel_dp->lane_count)) {
                        intel_dp_dump_link_status(link_status);
-                       DRM_DEBUG_KMS("Clock recovery check failed, cannot "
-                                     "continue channel equalization\n");
+                       drm_dbg_kms(&i915->drm,
+                                   "Clock recovery check failed, cannot "
+                                   "continue channel equalization\n");
                        break;
                }
 
                if (drm_dp_channel_eq_ok(link_status,
                                         intel_dp->lane_count)) {
                        channel_eq = true;
-                       DRM_DEBUG_KMS("Channel EQ done. DP Training "
-                                     "successful\n");
+                       drm_dbg_kms(&i915->drm, "Channel EQ done. DP Training "
+                                   "successful\n");
                        break;
                }
 
                /* Update training set as requested by target */
                intel_get_adjust_train(intel_dp, link_status);
                if (!intel_dp_update_link_train(intel_dp)) {
-                       DRM_ERROR("failed to update link training\n");
+                       drm_err(&i915->drm,
+                               "failed to update link training\n");
                        break;
                }
        }
@@ -335,7 +349,8 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
        /* Try 5 times, else fail and try at lower BW */
        if (tries == 5) {
                intel_dp_dump_link_status(link_status);
-               DRM_DEBUG_KMS("Channel equalization failed 5 times\n");
+               drm_dbg_kms(&i915->drm,
+                           "Channel equalization failed 5 times\n");
        }
 
        intel_dp_set_idle_link_train(intel_dp);
@@ -362,17 +377,19 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
        if (!intel_dp_link_training_channel_equalization(intel_dp))
                goto failure_handling;
 
-       DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Link Training Passed at Link Rate = %d, Lane count = %d",
-                     intel_connector->base.base.id,
-                     intel_connector->base.name,
-                     intel_dp->link_rate, intel_dp->lane_count);
+       drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
+                   "[CONNECTOR:%d:%s] Link Training Passed at Link Rate = %d, Lane count = %d",
+                   intel_connector->base.base.id,
+                   intel_connector->base.name,
+                   intel_dp->link_rate, intel_dp->lane_count);
        return;
 
  failure_handling:
-       DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Link Training failed at link rate = %d, lane count = %d",
-                     intel_connector->base.base.id,
-                     intel_connector->base.name,
-                     intel_dp->link_rate, intel_dp->lane_count);
+       drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
+                   "[CONNECTOR:%d:%s] Link Training failed at link rate = %d, lane count = %d",
+                   intel_connector->base.base.id,
+                   intel_connector->base.name,
+                   intel_dp->link_rate, intel_dp->lane_count);
        if (!intel_dp_get_link_train_fallback_values(intel_dp,
                                                     intel_dp->link_rate,
                                                     intel_dp->lane_count))