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
11struct dpll;
12struct drm_i915_private;
13struct intel_atomic_state;
14struct intel_crtc;
15struct intel_crtc_state;
16struct intel_dpll_hw_state;
17enum pipe;
18
19void intel_dpll_init_clock_hook(struct drm_i915_private *dev_priv);
20int intel_dpll_crtc_compute_clock(struct intel_atomic_state *state,
21				  struct intel_crtc *crtc);
22int intel_dpll_crtc_get_shared_dpll(struct intel_atomic_state *state,
23				    struct intel_crtc *crtc);
24int i9xx_calc_dpll_params(int refclk, struct dpll *clock);
25u32 i9xx_dpll_compute_fp(const struct dpll *dpll);
26void i9xx_dpll_get_hw_state(struct intel_crtc *crtc,
27			    struct intel_dpll_hw_state *dpll_hw_state);
28void vlv_compute_dpll(struct intel_crtc_state *crtc_state);
29void chv_compute_dpll(struct intel_crtc_state *crtc_state);
30
31int vlv_force_pll_on(struct drm_i915_private *dev_priv, enum pipe pipe,
32		     const struct dpll *dpll);
33void vlv_force_pll_off(struct drm_i915_private *dev_priv, enum pipe pipe);
34
35void chv_enable_pll(const struct intel_crtc_state *crtc_state);
36void chv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe);
37void vlv_enable_pll(const struct intel_crtc_state *crtc_state);
38void vlv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe);
39void i9xx_enable_pll(const struct intel_crtc_state *crtc_state);
40void i9xx_disable_pll(const struct intel_crtc_state *crtc_state);
41bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state,
42			struct dpll *best_clock);
43int chv_calc_dpll_params(int refclk, struct dpll *pll_clock);
44
45void i9xx_crtc_clock_get(struct intel_crtc_state *crtc_state);
46void vlv_crtc_clock_get(struct intel_crtc_state *crtc_state);
47void chv_crtc_clock_get(struct intel_crtc_state *crtc_state);
48
49void assert_pll_enabled(struct drm_i915_private *i915, enum pipe pipe);
50void assert_pll_disabled(struct drm_i915_private *i915, enum pipe pipe);
51
52#endif