drm/i915: kill intel_ddi_pll_select()

All it does is pick the encoder and call intel_get_shared_dpll(). We
can just do this in the caller. One less indirection level during code
reading.

As another plus, now the two callers of intel_get_shared_dpll() are
{ironlake,haswell}_crtc_compute_clock().

Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1490209125-20046-2-git-send-email-paulo.r.zanoni@intel.com

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index b30898c..3fbe498 100644 (file)
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -837,7 +837,8 @@ intel_ddi_get_crtc_encoder(struct intel_crtc *crtc)
        return ret;
 }
 
-static struct intel_encoder *
+/* 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);
@@ -1127,28 +1128,6 @@ void intel_ddi_clock_get(struct intel_encoder *encoder,
                bxt_ddi_clock_get(encoder, pipe_config);
 }
 
-/*
- * Tries to find a *shared* PLL for the CRTC and store it in
- * intel_crtc->ddi_pll_sel.
- *
- * For private DPLLs, compute_config() should do the selection for us. This
- * function should be folded into compute_config() eventually.
- */
-bool intel_ddi_pll_select(struct intel_crtc *intel_crtc,
-                         struct intel_crtc_state *crtc_state)
-{
-       struct intel_encoder *encoder =
-               intel_ddi_get_crtc_new_encoder(crtc_state);
-       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 != NULL;
-}
-
 void intel_ddi_set_pipe_settings(const struct intel_crtc_state *crtc_state)
 {
        struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 6dc7555..e6f6406 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8835,8 +8835,14 @@ static int haswell_crtc_compute_clock(struct intel_crtc *crtc,
                                      struct intel_crtc_state *crtc_state)
 {
        if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI)) {
-               if (!intel_ddi_pll_select(crtc, crtc_state))
+               struct intel_encoder *encoder =
+                       intel_ddi_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",
+                                        pipe_name(crtc->pipe));
                        return -EINVAL;
+               }
        }
 
        crtc->lowfreq_avail = false;

diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 15e3eb2..464cd5e 100644 (file)
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1239,8 +1239,8 @@ void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
                                       enum transcoder cpu_transcoder);
 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);
-bool intel_ddi_pll_select(struct intel_crtc *crtc,
-                         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);