xref: /linux/drivers/gpu/drm/i915/display/g4x_dp.h (revision ae22a94997b8a03dcb3c922857c203246711f9d4)
1 /* SPDX-License-Identifier: MIT */
2 /*
3  * Copyright © 2020 Intel Corporation
4  */
5 
6 #ifndef _G4X_DP_H_
7 #define _G4X_DP_H_
8 
9 #include <linux/types.h>
10 
11 #include "i915_reg_defs.h"
12 
13 enum pipe;
14 enum port;
15 struct drm_i915_private;
16 struct intel_crtc_state;
17 struct intel_dp;
18 struct intel_encoder;
19 
20 #ifdef I915
21 const struct dpll *vlv_get_dpll(struct drm_i915_private *i915);
22 enum pipe vlv_active_pipe(struct intel_dp *intel_dp);
23 void g4x_dp_set_clock(struct intel_encoder *encoder,
24 		      struct intel_crtc_state *pipe_config);
25 bool g4x_dp_port_enabled(struct drm_i915_private *dev_priv,
26 			 i915_reg_t dp_reg, enum port port,
27 			 enum pipe *pipe);
28 bool g4x_dp_init(struct drm_i915_private *dev_priv,
29 		 i915_reg_t output_reg, enum port port);
30 #else
31 static inline const struct dpll *vlv_get_dpll(struct drm_i915_private *i915)
32 {
33 	return NULL;
34 }
35 static inline int vlv_active_pipe(struct intel_dp *intel_dp)
36 {
37 	return 0;
38 }
39 static inline void g4x_dp_set_clock(struct intel_encoder *encoder,
40 				    struct intel_crtc_state *pipe_config)
41 {
42 }
43 static inline bool g4x_dp_port_enabled(struct drm_i915_private *dev_priv,
44 				       i915_reg_t dp_reg, int port,
45 				       enum pipe *pipe)
46 {
47 	return false;
48 }
49 static inline bool g4x_dp_init(struct drm_i915_private *dev_priv,
50 			       i915_reg_t output_reg, int port)
51 {
52 	return false;
53 }
54 #endif
55 
56 #endif
57