[Intel-gfx] [PATCH 15/15] drm/i915: Simplify intel_ddi_get_encoder_port()

[ville.syrjala at linux.intel.com]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

We no longer have any need to look up the intel_digital_port based
on the passed in intel_encoder, but we still want to look up the port.
Let's just move that logic into intel_ddi_get_encoder_port() and drop
the dig_port stuff.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_ddi.c | 34 +++++++---------------------------
 1 file changed, 7 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index f4f5c52a116c..b4c3aad2d817 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -304,43 +304,23 @@ static const struct bxt_ddi_buf_trans bxt_ddi_translations_hdmi[] = {
 static void bxt_ddi_vswing_sequence(struct drm_i915_private *dev_priv,
 				    u32 level, enum port port, int type);
 
-static void ddi_get_encoder_port(struct intel_encoder *intel_encoder,
-				 struct intel_digital_port **dig_port,
-				 enum port *port)
+enum port intel_ddi_get_encoder_port(struct intel_encoder *encoder)
 {
-	struct drm_encoder *encoder = &intel_encoder->base;
-
-	switch (intel_encoder->type) {
+	switch (encoder->type) {
 	case INTEL_OUTPUT_DP_MST:
-		*dig_port = enc_to_mst(encoder)->primary;
-		*port = (*dig_port)->port;
-		break;
+		return enc_to_mst(&encoder->base)->primary->port;
 	case INTEL_OUTPUT_DISPLAYPORT:
 	case INTEL_OUTPUT_EDP:
 	case INTEL_OUTPUT_HDMI:
-		*dig_port = enc_to_dig_port(encoder);
-		*port = (*dig_port)->port;
-		break;
+		return enc_to_dig_port(&encoder->base)->port;
 	case INTEL_OUTPUT_ANALOG:
-		*dig_port = NULL;
-		*port = PORT_E;
-		break;
+		return PORT_E;
 	default:
-		WARN(1, "Invalid DDI encoder type %d\n", intel_encoder->type);
-		break;
+		MISSING_CASE(encoder->type);
+		return PORT_A;
 	}
 }
 
-enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder)
-{
-	struct intel_digital_port *dig_port;
-	enum port port;
-
-	ddi_get_encoder_port(intel_encoder, &dig_port, &port);
-
-	return port;
-}
-
 static const struct ddi_buf_trans *
 skl_get_buf_trans_dp(struct drm_i915_private *dev_priv, int *n_entries)
 {
-- 
2.4.10