drivers/gpu/drm/i915/display/intel_dpll.h

   1 /* SPDX-License-Identifier: MIT */
   2 /*
   3  * Copyright © 2020 Intel Corporation
   4  */
   5
   6 #ifndef _INTEL_DPLL_H_
   7 #define _INTEL_DPLL_H_
   8
   9 #include <linux/types.h>
  10
  11 struct dpll;
  12 struct drm_i915_private;
  13 struct intel_atomic_state;
  14 struct intel_crtc;
  15 struct intel_crtc_state;
  16 struct intel_dpll_hw_state;
  17 enum pipe;
  18
  19 void intel_dpll_init_clock_hook(struct drm_i915_private *dev_priv);
  20 int intel_dpll_crtc_compute_clock(struct intel_atomic_state *state,
  21                                   struct intel_crtc *crtc);
  22 int intel_dpll_crtc_get_shared_dpll(struct intel_atomic_state *state,
  23                                     struct intel_crtc *crtc);
  24 int i9xx_calc_dpll_params(int refclk, struct dpll *clock);
  25 u32 i9xx_dpll_compute_fp(const struct dpll *dpll);
  26 void i9xx_dpll_get_hw_state(struct intel_crtc *crtc,
  27                             struct intel_dpll_hw_state *dpll_hw_state);
  28 void vlv_compute_dpll(struct intel_crtc_state *crtc_state);
  29 void chv_compute_dpll(struct intel_crtc_state *crtc_state);
  30
  31 int vlv_force_pll_on(struct drm_i915_private *dev_priv, enum pipe pipe,
  32                      const struct dpll *dpll);
  33 void vlv_force_pll_off(struct drm_i915_private *dev_priv, enum pipe pipe);
  34
  35 void chv_enable_pll(const struct intel_crtc_state *crtc_state);
  36 void chv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe);
  37 void vlv_enable_pll(const struct intel_crtc_state *crtc_state);
  38 void vlv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe);
  39 void i9xx_enable_pll(const struct intel_crtc_state *crtc_state);
  40 void i9xx_disable_pll(const struct intel_crtc_state *crtc_state);
  41 bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state,
  42                         struct dpll *best_clock);
  43 int chv_calc_dpll_params(int refclk, struct dpll *pll_clock);
  44
  45 void i9xx_crtc_clock_get(struct intel_crtc_state *crtc_state);
  46 void vlv_crtc_clock_get(struct intel_crtc_state *crtc_state);
  47 void chv_crtc_clock_get(struct intel_crtc_state *crtc_state);
  48
  49 void assert_pll_enabled(struct drm_i915_private *i915, enum pipe pipe);
  50 void assert_pll_disabled(struct drm_i915_private *i915, enum pipe pipe);
  51
  52 #endif