xref: /dragonfly/sys/dev/drm/amd/amdgpu/amdgpu_pll.h (revision 7d3e9a5b)
1 /*
2  * Copyright 2014 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  */
23 
24 #ifndef __AMDGPU_PLL_H__
25 #define __AMDGPU_PLL_H__
26 
27 void amdgpu_pll_compute(struct amdgpu_pll *pll,
28 			 u32 freq,
29 			 u32 *dot_clock_p,
30 			 u32 *fb_div_p,
31 			 u32 *frac_fb_div_p,
32 			 u32 *ref_div_p,
33 			 u32 *post_div_p);
34 u32 amdgpu_pll_get_use_mask(struct drm_crtc *crtc);
35 int amdgpu_pll_get_shared_dp_ppll(struct drm_crtc *crtc);
36 int amdgpu_pll_get_shared_nondp_ppll(struct drm_crtc *crtc);
37 
38 #endif
39