[PATCH 03/22] drm/i915 Call get_adjust_train() from clock recovery and channel eq

Ander Conselvan de Oliveira
2015-10-23T10:02:38Z

Move the call to intel_dp_get_adjust_train() out of
intel_dp_update_link_train() and call it instead from the clock recovery
and channel equalization features. A follow up patch will remove the DP
register write from that function, so that it handles only the DPCD
write.

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
---
drivers/gpu/drm/i915/intel_dp.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 0958cab..11f2385 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -3645,15 +3645,13 @@ intel_dp_reset_link_train(struct intel_dp *intel_dp,
}

static bool
-intel_dp_update_link_train(struct intel_dp *intel_dp,
- const uint8_t link_status[DP_LINK_STATUS_SIZE])
+intel_dp_update_link_train(struct intel_dp *intel_dp)
{
struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
struct drm_i915_private *dev_priv =
to_i915(intel_dig_port->base.base.dev);
int ret;

- intel_get_adjust_train(intel_dp, link_status);
intel_dp_set_signal_levels(intel_dp);

I915_WRITE(intel_dp->output_reg, intel_dp->DP);
@@ -3801,7 +3799,8 @@ 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 */
- if (!intel_dp_update_link_train(intel_dp, link_status)) {
+ intel_get_adjust_train(intel_dp, link_status);
+ if (!intel_dp_update_link_train(intel_dp)) {
DRM_ERROR("failed to update link training\n");
break;
}
@@ -3888,7 +3887,8 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
}

/* Update training set as requested by target */
- if (!intel_dp_update_link_train(intel_dp, link_status)) {
+ intel_get_adjust_train(intel_dp, link_status);
+ if (!intel_dp_update_link_train(intel_dp)) {
DRM_ERROR("failed to update link training\n");
break;