Currently we reuse hsw_crtc_enable for SKL+ platforms.
But this has added a lot of platform checks for SKL+ platforms.
So its time to move the code to a separate crtc_enable hook
for SKL+ platforms.

No functional changes here.

v2: Cleanup hsw_crtc_enable (Jani N)

Suggested-by: Jani Nikula <jani.nik...@intel.com>
Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
Cc: Jani Nikula <jani.nik...@intel.com>
Signed-off-by: Manasi Navare <manasi.d.nav...@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 64 ++++++++++++++++----
 1 file changed, 52 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c 
b/drivers/gpu/drm/i915/display/intel_display.c
index 806d50b302ab..70cde34aca10 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -1895,13 +1895,13 @@ static void hsw_configure_cpu_transcoder(const struct 
intel_crtc_state *crtc_sta
        hsw_set_transconf(crtc_state);
 }
 
-static void hsw_crtc_enable(struct intel_atomic_state *state,
+static void skl_crtc_enable(struct intel_atomic_state *state,
                            struct intel_crtc *crtc)
 {
        const struct intel_crtc_state *new_crtc_state =
                intel_atomic_get_new_crtc_state(state, crtc);
        struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-       enum pipe pipe = crtc->pipe, hsw_workaround_pipe;
+       enum pipe pipe = crtc->pipe;
        enum transcoder cpu_transcoder = new_crtc_state->cpu_transcoder;
        bool psl_clkgate_wa;
 
@@ -1925,8 +1925,7 @@ static void hsw_crtc_enable(struct intel_atomic_state 
*state,
                intel_uncompressed_joiner_enable(new_crtc_state);
 
        intel_set_pipe_src_size(new_crtc_state);
-       if (DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv))
-               bdw_set_pipemisc(new_crtc_state);
+       bdw_set_pipemisc(new_crtc_state);
 
        if (!intel_crtc_is_bigjoiner_slave(new_crtc_state) &&
            !transcoder_is_dsi(cpu_transcoder))
@@ -1940,10 +1939,7 @@ static void hsw_crtc_enable(struct intel_atomic_state 
*state,
        if (psl_clkgate_wa)
                glk_pipe_scaler_clock_gating_wa(dev_priv, pipe, true);
 
-       if (DISPLAY_VER(dev_priv) >= 9)
-               skl_pfit_enable(new_crtc_state);
-       else
-               ilk_pfit_enable(new_crtc_state);
+       skl_pfit_enable(new_crtc_state);
 
        /*
         * On ILK+ LUT must be loaded before the pipe is running but with
@@ -1952,9 +1948,6 @@ static void hsw_crtc_enable(struct intel_atomic_state 
*state,
        intel_color_load_luts(new_crtc_state);
        intel_color_commit_noarm(new_crtc_state);
        intel_color_commit_arm(new_crtc_state);
-       /* update DSPCNTR to configure gamma/csc for pipe bottom color */
-       if (DISPLAY_VER(dev_priv) < 9)
-               intel_disable_primary_plane(new_crtc_state);
 
        hsw_set_linetime_wm(new_crtc_state);
 
@@ -1972,6 +1965,53 @@ static void hsw_crtc_enable(struct intel_atomic_state 
*state,
                intel_crtc_wait_for_next_vblank(crtc);
                glk_pipe_scaler_clock_gating_wa(dev_priv, pipe, false);
        }
+}
+
+static void hsw_crtc_enable(struct intel_atomic_state *state,
+                           struct intel_crtc *crtc)
+{
+       const struct intel_crtc_state *new_crtc_state =
+               intel_atomic_get_new_crtc_state(state, crtc);
+       struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+       enum pipe hsw_workaround_pipe;
+       enum transcoder cpu_transcoder = new_crtc_state->cpu_transcoder;
+
+       if (drm_WARN_ON(&dev_priv->drm, crtc->active))
+               return;
+
+       intel_encoders_pre_pll_enable(state, crtc);
+
+       if (new_crtc_state->shared_dpll)
+               intel_enable_shared_dpll(new_crtc_state);
+
+       intel_encoders_pre_enable(state, crtc);
+
+       intel_set_pipe_src_size(new_crtc_state);
+       if (IS_BROADWELL(dev_priv))
+               bdw_set_pipemisc(new_crtc_state);
+
+       if (!transcoder_is_dsi(cpu_transcoder))
+               hsw_configure_cpu_transcoder(new_crtc_state);
+
+       crtc->active = true;
+
+       ilk_pfit_enable(new_crtc_state);
+
+       /*
+        * On ILK+ LUT must be loaded before the pipe is running but with
+        * clocks enabled
+        */
+       intel_color_load_luts(new_crtc_state);
+       intel_color_commit_noarm(new_crtc_state);
+       intel_color_commit_arm(new_crtc_state);
+       /* update DSPCNTR to configure gamma/csc for pipe bottom color */
+       intel_disable_primary_plane(new_crtc_state);
+
+       hsw_set_linetime_wm(new_crtc_state);
+
+       intel_initial_watermarks(state, crtc);
+
+       intel_encoders_enable(state, crtc);
 
        /* If we change the relative order between pipe/planes enabling, we need
         * to change the workaround. */
@@ -9231,7 +9271,7 @@ static const struct drm_mode_config_funcs 
intel_mode_funcs = {
 
 static const struct drm_i915_display_funcs skl_display_funcs = {
        .get_pipe_config = hsw_get_pipe_config,
-       .crtc_enable = hsw_crtc_enable,
+       .crtc_enable = skl_crtc_enable,
        .crtc_disable = hsw_crtc_disable,
        .commit_modeset_enables = skl_commit_modeset_enables,
        .get_initial_plane_config = skl_get_initial_plane_config,
-- 
2.35.1

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