From: Ville Syrjälä <ville.syrj...@linux.intel.com>

for_each_encoder_on_crtc() is legacy and shouldn't be used by atomic
drivers. Let's throw out intel_trans_dp_port_sel() and replace it
with intel_get_crtc_new_encoder() which looks the atomic state instead.

Since we now have to call intel_get_crtc_new_encoder() during the commit
phase we'll need to plumb in the top level atomic state. The
crtc_state->state pointers are no longer valid at that point.

We'll also parametrize TRANS_DP_PORT_SEL() while at it.

Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 39 +++++++++++++-----------------------
 1 file changed, 14 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index e8bedf09d892..52bcb13c1a00 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4496,17 +4496,17 @@ static void ivybridge_update_fdi_bc_bifurcation(struct 
intel_crtc *intel_crtc)
  * 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)
+intel_get_crtc_new_encoder(const struct intel_atomic_state *state,
+                          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) {
+       for_each_new_connector_in_state(&state->base, connector, 
connector_state, i) {
                if (connector_state->crtc != &crtc->base)
                        continue;
 
@@ -4520,22 +4520,6 @@ intel_get_crtc_new_encoder(const struct intel_crtc_state 
*crtc_state)
        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)
-{
-       struct drm_device *dev = crtc->base.dev;
-       struct intel_encoder *encoder;
-
-       for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
-               if (encoder->type == INTEL_OUTPUT_DP ||
-                   encoder->type == INTEL_OUTPUT_EDP)
-                       return encoder->port;
-       }
-
-       return -1;
-}
-
 /*
  * Enable PCH resources required for PCH ports:
  *   - PCH PLLs
@@ -4544,7 +4528,8 @@ intel_trans_dp_port_sel(struct intel_crtc *crtc)
  *   - DP transcoding bits
  *   - transcoder
  */
-static void ironlake_pch_enable(const struct intel_crtc_state *crtc_state)
+static void ironlake_pch_enable(const struct intel_atomic_state *state,
+                               const struct intel_crtc_state *crtc_state)
 {
        struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
        struct drm_device *dev = crtc->base.dev;
@@ -4617,7 +4602,7 @@ static void ironlake_pch_enable(const struct 
intel_crtc_state *crtc_state)
                if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
                        temp |= TRANS_DP_VSYNC_ACTIVE_HIGH;
 
-               port = intel_trans_dp_port_sel(crtc);
+               port = intel_get_crtc_new_encoder(state, crtc_state)->port;
                temp |= TRANS_DP_PORT_SEL(port);
 
                I915_WRITE(reg, temp);
@@ -4626,7 +4611,8 @@ static void ironlake_pch_enable(const struct 
intel_crtc_state *crtc_state)
        ironlake_enable_pch_transcoder(dev_priv, pipe);
 }
 
-static void lpt_pch_enable(const struct intel_crtc_state *crtc_state)
+static void lpt_pch_enable(const struct intel_atomic_state *state,
+                          const struct intel_crtc_state *crtc_state)
 {
        struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
        struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
@@ -5384,7 +5370,7 @@ static void ironlake_crtc_enable(struct intel_crtc_state 
*pipe_config,
        intel_enable_pipe(pipe_config);
 
        if (intel_crtc->config->has_pch_encoder)
-               ironlake_pch_enable(pipe_config);
+               ironlake_pch_enable(old_intel_state, pipe_config);
 
        assert_vblank_disabled(crtc);
        drm_crtc_vblank_on(crtc);
@@ -5520,7 +5506,7 @@ static void haswell_crtc_enable(struct intel_crtc_state 
*pipe_config,
                intel_enable_pipe(pipe_config);
 
        if (intel_crtc->config->has_pch_encoder)
-               lpt_pch_enable(pipe_config);
+               lpt_pch_enable(old_intel_state, pipe_config);
 
        if (intel_crtc_has_type(intel_crtc->config, INTEL_OUTPUT_DP_MST))
                intel_ddi_set_vc_payload_alloc(pipe_config, true);
@@ -8971,9 +8957,12 @@ void hsw_disable_pc8(struct drm_i915_private *dev_priv)
 static int haswell_crtc_compute_clock(struct intel_crtc *crtc,
                                      struct intel_crtc_state *crtc_state)
 {
+       struct intel_atomic_state *state =
+               to_intel_atomic_state(crtc_state->base.state);
+
        if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI)) {
                struct intel_encoder *encoder =
-                       intel_get_crtc_new_encoder(crtc_state);
+                       intel_get_crtc_new_encoder(state, crtc_state);
 
                if (!intel_get_shared_dpll(crtc, crtc_state, encoder)) {
                        DRM_DEBUG_DRIVER("failed to find PLL for pipe %c\n",
-- 
2.13.6

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