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 enum pipe; 17 18 void intel_dpll_init_clock_hook(struct drm_i915_private *dev_priv); 19 int intel_dpll_crtc_compute_clock(struct intel_atomic_state *state, 20 struct intel_crtc *crtc); 21 int intel_dpll_crtc_get_shared_dpll(struct intel_atomic_state *state, 22 struct intel_crtc *crtc); 23 int vlv_calc_dpll_params(int refclk, struct dpll *clock); 24 int pnv_calc_dpll_params(int refclk, struct dpll *clock); 25 int i9xx_calc_dpll_params(int refclk, struct dpll *clock); 26 u32 i9xx_dpll_compute_fp(const struct dpll *dpll); 27 void vlv_compute_dpll(struct intel_crtc_state *crtc_state); 28 void chv_compute_dpll(struct intel_crtc_state *crtc_state); 29 30 int vlv_force_pll_on(struct drm_i915_private *dev_priv, enum pipe pipe, 31 const struct dpll *dpll); 32 void vlv_force_pll_off(struct drm_i915_private *dev_priv, enum pipe pipe); 33 34 void chv_enable_pll(const struct intel_crtc_state *crtc_state); 35 void chv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe); 36 void vlv_enable_pll(const struct intel_crtc_state *crtc_state); 37 void vlv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe); 38 void i9xx_enable_pll(const struct intel_crtc_state *crtc_state); 39 void i9xx_disable_pll(const struct intel_crtc_state *crtc_state); 40 bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, 41 struct dpll *best_clock); 42 int chv_calc_dpll_params(int refclk, struct dpll *pll_clock); 43 44 void assert_pll_enabled(struct drm_i915_private *i915, enum pipe pipe); 45 void assert_pll_disabled(struct drm_i915_private *i915, enum pipe pipe); 46 47 #endif 48