[PATCH] drm/i915: simplify intel_ddi_pll_select()

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Because {hsw,skl,bxt}_ddi_pll_select all pretty much do the same thing
in slightly different ways. Replace everything with a simple copy of
the function and inline it inside intle_ddi_pll_select().

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_ddi.c | 58 +++++-----------------------------------
 1 file changed, 7 insertions(+), 51 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index d8214ba..bd6fd0b 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1127,47 +1127,6 @@ void intel_ddi_clock_get(struct intel_encoder *encoder,
 		bxt_ddi_clock_get(encoder, pipe_config);
 }
 
-static bool
-hsw_ddi_pll_select(struct intel_crtc *intel_crtc,
-		   struct intel_crtc_state *crtc_state,
-		   struct intel_encoder *encoder)
-{
-	struct intel_shared_dpll *pll;
-
-	pll = intel_get_shared_dpll(intel_crtc, crtc_state,
-				    encoder);
-	if (!pll)
-		DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
-				 pipe_name(intel_crtc->pipe));
-
-	return pll;
-}
-
-static bool
-skl_ddi_pll_select(struct intel_crtc *intel_crtc,
-		   struct intel_crtc_state *crtc_state,
-		   struct intel_encoder *encoder)
-{
-	struct intel_shared_dpll *pll;
-
-	pll = intel_get_shared_dpll(intel_crtc, crtc_state, encoder);
-	if (pll == NULL) {
-		DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
-				 pipe_name(intel_crtc->pipe));
-		return false;
-	}
-
-	return true;
-}
-
-static bool
-bxt_ddi_pll_select(struct intel_crtc *intel_crtc,
-		   struct intel_crtc_state *crtc_state,
-		   struct intel_encoder *encoder)
-{
-	return !!intel_get_shared_dpll(intel_crtc, crtc_state, encoder);
-}
-
 /*
  * Tries to find a *shared* PLL for the CRTC and store it in
  * intel_crtc->ddi_pll_sel.
@@ -1178,19 +1137,16 @@ bxt_ddi_pll_select(struct intel_crtc *intel_crtc,
 bool intel_ddi_pll_select(struct intel_crtc *intel_crtc,
 			  struct intel_crtc_state *crtc_state)
 {
-	struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
 	struct intel_encoder *encoder =
 		intel_ddi_get_crtc_new_encoder(crtc_state);
+	struct intel_shared_dpll *pll;
 
-	if (IS_GEN9_BC(dev_priv))
-		return skl_ddi_pll_select(intel_crtc, crtc_state,
-					  encoder);
-	else if (IS_GEN9_LP(dev_priv))
-		return bxt_ddi_pll_select(intel_crtc, crtc_state,
-					  encoder);
-	else
-		return hsw_ddi_pll_select(intel_crtc, crtc_state,
-					  encoder);
+	pll = intel_get_shared_dpll(intel_crtc, crtc_state, encoder);
+	if (!pll)
+		DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
+				  pipe_name(intel_crtc->pipe));
+
+	return pll;
 }
 
 void intel_ddi_set_pipe_settings(const struct intel_crtc_state *crtc_state)
-- 
2.7.4

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