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

Since .{enable,disable}_clock() are already vfuncs it's a bit silly to
have if-ladders inside them. Just provide specialized version for adlp
and rkl so we don't need any of that.

Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c | 93 ++++++++++++++++--------
 1 file changed, 62 insertions(+), 31 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c 
b/drivers/gpu/drm/i915/display/intel_ddi.c
index 1bd2aa86183d..bafb754d1b66 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3127,28 +3127,6 @@ static u32 icl_dpclka_cfgcr0_clk_off(struct 
drm_i915_private *dev_priv,
        return 0;
 }
 
-static u32 icl_dpclka_cfgcr0_clk_sel(struct drm_i915_private *dev_priv,
-                                    enum intel_dpll_id id, enum phy phy)
-{
-       if (IS_ALDERLAKE_S(dev_priv))
-               return id << ADLS_DPCLKA_CFGCR_DDI_SHIFT(phy);
-       else if (IS_ROCKETLAKE(dev_priv))
-               return RKL_DPCLKA_CFGCR0_DDI_CLK_SEL(id, phy);
-       else
-               return ICL_DPCLKA_CFGCR0_DDI_CLK_SEL(id, phy);
-}
-
-static u32 icl_dpclka_cfgcr0_clk_sel_mask(struct drm_i915_private *dev_priv,
-                                         enum phy phy)
-{
-       if (IS_ALDERLAKE_S(dev_priv))
-               return ADLS_DPCLKA_CFGCR_DDI_CLK_SEL_MASK(phy);
-       else if (IS_ROCKETLAKE(dev_priv))
-               return RKL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy);
-       else
-               return ICL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy);
-}
-
 static i915_reg_t icl_dpclka_cfgcr0_reg(struct drm_i915_private *i915,
                                        enum phy phy)
 {
@@ -3184,6 +3162,56 @@ static void _cnl_ddi_disable_clock(struct 
drm_i915_private *i915, i915_reg_t reg
        mutex_unlock(&i915->dpll.lock);
 }
 
+static void adls_ddi_enable_clock(struct intel_encoder *encoder,
+                                 const struct intel_crtc_state *crtc_state)
+{
+       struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+       const struct intel_shared_dpll *pll = crtc_state->shared_dpll;
+       enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
+
+       if (drm_WARN_ON(&dev_priv->drm, !pll))
+               return;
+
+       _cnl_ddi_enable_clock(dev_priv, ADLS_DPCLKA_CFGCR(phy),
+                             ADLS_DPCLKA_CFGCR_DDI_CLK_SEL_MASK(phy),
+                             pll->info->id << ADLS_DPCLKA_CFGCR_DDI_SHIFT(phy),
+                             ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy));
+}
+
+static void adls_ddi_disable_clock(struct intel_encoder *encoder)
+{
+       struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+       enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
+
+       _cnl_ddi_disable_clock(dev_priv, ADLS_DPCLKA_CFGCR(phy),
+                              ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy));
+}
+
+static void rkl_ddi_enable_clock(struct intel_encoder *encoder,
+                                const struct intel_crtc_state *crtc_state)
+{
+       struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+       const struct intel_shared_dpll *pll = crtc_state->shared_dpll;
+       enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
+
+       if (drm_WARN_ON(&dev_priv->drm, !pll))
+               return;
+
+       _cnl_ddi_enable_clock(dev_priv, ICL_DPCLKA_CFGCR0,
+                             RKL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy),
+                             RKL_DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, phy),
+                             RKL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy));
+}
+
+static void rkl_ddi_disable_clock(struct intel_encoder *encoder)
+{
+       struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+       enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
+
+       _cnl_ddi_disable_clock(dev_priv, ICL_DPCLKA_CFGCR0,
+                              RKL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy));
+}
+
 static void dg1_ddi_enable_clock(struct intel_encoder *encoder,
                                 const struct intel_crtc_state *crtc_state)
 {
@@ -3228,10 +3256,10 @@ static void icl_ddi_combo_enable_clock(struct 
intel_encoder *encoder,
        if (drm_WARN_ON(&dev_priv->drm, !pll))
                return;
 
-       _cnl_ddi_enable_clock(dev_priv, icl_dpclka_cfgcr0_reg(dev_priv, phy),
-                             icl_dpclka_cfgcr0_clk_sel_mask(dev_priv, phy),
-                             icl_dpclka_cfgcr0_clk_sel(dev_priv, 
pll->info->id, phy),
-                             icl_dpclka_cfgcr0_clk_off(dev_priv, phy));
+       _cnl_ddi_enable_clock(dev_priv, ICL_DPCLKA_CFGCR0,
+                             ICL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy),
+                             ICL_DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, phy),
+                             ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy));
 }
 
 static void icl_ddi_combo_disable_clock(struct intel_encoder *encoder)
@@ -3239,8 +3267,8 @@ static void icl_ddi_combo_disable_clock(struct 
intel_encoder *encoder)
        struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
        enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
 
-       _cnl_ddi_disable_clock(dev_priv, icl_dpclka_cfgcr0_reg(dev_priv, phy),
-                              icl_dpclka_cfgcr0_clk_off(dev_priv, phy));
+       _cnl_ddi_disable_clock(dev_priv, ICL_DPCLKA_CFGCR0,
+                              ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy));
 }
 
 static void dg1_sanitize_port_clk_off(struct drm_i915_private *dev_priv,
@@ -5654,9 +5682,12 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, 
enum port port)
        encoder->cloneable = 0;
        encoder->pipe_mask = ~0;
 
-       if (IS_ALDERLAKE_S(dev_priv) || IS_ROCKETLAKE(dev_priv)) {
-               encoder->enable_clock = icl_ddi_combo_enable_clock;
-               encoder->disable_clock = icl_ddi_combo_disable_clock;
+       if (IS_ALDERLAKE_S(dev_priv)) {
+               encoder->enable_clock = adls_ddi_enable_clock;
+               encoder->disable_clock = adls_ddi_disable_clock;
+       } else if (IS_ROCKETLAKE(dev_priv)) {
+               encoder->enable_clock = rkl_ddi_enable_clock;
+               encoder->disable_clock = rkl_ddi_disable_clock;
        } else if (IS_DG1(dev_priv)) {
                encoder->enable_clock = dg1_ddi_enable_clock;
                encoder->disable_clock = dg1_ddi_disable_clock;
-- 
2.26.2

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