xref: /linux/drivers/gpu/drm/i915/display/intel_pps.h (revision 9dbbc3b9d09d6deba9f3b9e1d5b355032ed46a75)
1 /* SPDX-License-Identifier: MIT */
2 /*
3  * Copyright © 2020 Intel Corporation
4  */
5 
6 #ifndef __INTEL_PPS_H__
7 #define __INTEL_PPS_H__
8 
9 #include <linux/types.h>
10 
11 #include "intel_wakeref.h"
12 
13 struct drm_i915_private;
14 struct intel_connector;
15 struct intel_crtc_state;
16 struct intel_dp;
17 struct intel_encoder;
18 
19 intel_wakeref_t intel_pps_lock(struct intel_dp *intel_dp);
20 intel_wakeref_t intel_pps_unlock(struct intel_dp *intel_dp, intel_wakeref_t wakeref);
21 
22 #define with_intel_pps_lock(dp, wf)						\
23 	for ((wf) = intel_pps_lock(dp); (wf); (wf) = intel_pps_unlock((dp), (wf)))
24 
25 void intel_pps_backlight_on(struct intel_dp *intel_dp);
26 void intel_pps_backlight_off(struct intel_dp *intel_dp);
27 void intel_pps_backlight_power(struct intel_connector *connector, bool enable);
28 
29 bool intel_pps_vdd_on_unlocked(struct intel_dp *intel_dp);
30 void intel_pps_vdd_off_unlocked(struct intel_dp *intel_dp, bool sync);
31 void intel_pps_on_unlocked(struct intel_dp *intel_dp);
32 void intel_pps_off_unlocked(struct intel_dp *intel_dp);
33 void intel_pps_check_power_unlocked(struct intel_dp *intel_dp);
34 
35 void intel_pps_vdd_on(struct intel_dp *intel_dp);
36 void intel_pps_on(struct intel_dp *intel_dp);
37 void intel_pps_off(struct intel_dp *intel_dp);
38 void intel_pps_vdd_off_sync(struct intel_dp *intel_dp);
39 bool intel_pps_have_power(struct intel_dp *intel_dp);
40 void intel_pps_wait_power_cycle(struct intel_dp *intel_dp);
41 
42 void intel_pps_init(struct intel_dp *intel_dp);
43 void intel_pps_encoder_reset(struct intel_dp *intel_dp);
44 void intel_pps_reset_all(struct drm_i915_private *i915);
45 
46 void vlv_pps_init(struct intel_encoder *encoder,
47 		  const struct intel_crtc_state *crtc_state);
48 
49 void intel_pps_unlock_regs_wa(struct drm_i915_private *i915);
50 void intel_pps_setup(struct drm_i915_private *i915);
51 
52 #endif /* __INTEL_PPS_H__ */
53