From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Fri, 18 May 2018 18:29:25 +0300
Subject: drm/i915: Move intel_ddi_get_crtc_new_encoder() out from ddi code
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Git-commit: f606bc6d9d416504596844d513474791cdbb3993
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

The ddi code no longer uses intel_ddi_get_crtc_new_encoder(). Move it
elsewhere where we have some users left.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180518152931.13104-1-ville.syrjala@linux.intel.com

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/i915/intel_ddi.c     |   29 -----------------------------
 drivers/gpu/drm/i915/intel_display.c |   31 ++++++++++++++++++++++++++++++-
 drivers/gpu/drm/i915/intel_drv.h     |    2 --
 3 files changed, 30 insertions(+), 32 deletions(-)

--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1243,35 +1243,6 @@ intel_ddi_get_crtc_encoder(struct intel_
 	return ret;
 }
 
-/* Finds the only possible encoder associated with the given CRTC. */
-struct intel_encoder *
-intel_ddi_get_crtc_new_encoder(struct intel_crtc_state *crtc_state)
-{
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
-	struct intel_encoder *ret = NULL;
-	struct drm_atomic_state *state;
-	struct drm_connector *connector;
-	struct drm_connector_state *connector_state;
-	int num_encoders = 0;
-	int i;
-
-	state = crtc_state->base.state;
-
-	for_each_new_connector_in_state(state, connector, connector_state, i) {
-		if (connector_state->crtc != crtc_state->base.crtc)
-			continue;
-
-		ret = to_intel_encoder(connector_state->best_encoder);
-		num_encoders++;
-	}
-
-	WARN(num_encoders != 1, "%d encoders on crtc for pipe %c\n", num_encoders,
-	     pipe_name(crtc->pipe));
-
-	BUG_ON(ret == NULL);
-	return ret;
-}
-
 #define LC_FREQ 2700
 
 static int hsw_ddi_calc_wrpll_link(struct drm_i915_private *dev_priv,
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4585,6 +4585,35 @@ static void ivybridge_update_fdi_bc_bifu
 	}
 }
 
+/*
+ * Finds the encoder associated with the given CRTC. This can only be
+ * used when we know that the CRTC isn't feeding multiple encoders!
+ */
+static struct intel_encoder *
+intel_get_crtc_new_encoder(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
+	const struct drm_atomic_state *state = crtc_state->base.state;
+	const struct drm_connector_state *connector_state;
+	const struct drm_connector *connector;
+	struct intel_encoder *encoder = NULL;
+	int num_encoders = 0;
+	int i;
+
+	for_each_new_connector_in_state(state, connector, connector_state, i) {
+		if (connector_state->crtc != &crtc->base)
+			continue;
+
+		encoder = to_intel_encoder(connector_state->best_encoder);
+		num_encoders++;
+	}
+
+	WARN(num_encoders != 1, "%d encoders for pipe %c\n",
+	     num_encoders, pipe_name(crtc->pipe));
+
+	return encoder;
+}
+
 /* Return which DP Port should be selected for Transcoder DP control */
 static enum port
 intel_trans_dp_port_sel(struct intel_crtc *crtc)
@@ -9098,7 +9127,7 @@ static int haswell_crtc_compute_clock(st
 {
 	if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI)) {
 		struct intel_encoder *encoder =
-			intel_ddi_get_crtc_new_encoder(crtc_state);
+			intel_get_crtc_new_encoder(crtc_state);
 
 		if (!intel_get_shared_dpll(crtc, crtc_state, encoder)) {
 			DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1392,8 +1392,6 @@ void intel_ddi_enable_transcoder_func(co
 void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state);
 void intel_ddi_enable_pipe_clock(const struct intel_crtc_state *crtc_state);
 void intel_ddi_disable_pipe_clock(const  struct intel_crtc_state *crtc_state);
-struct intel_encoder *
-intel_ddi_get_crtc_new_encoder(struct intel_crtc_state *crtc_state);
 void intel_ddi_set_pipe_settings(const struct intel_crtc_state *crtc_state);
 void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp);
 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);