These changes are the raw update to linux-4.4.6-rt14. Kernel sources
[kvmfornfv.git] / kernel / drivers / gpu / drm / nouveau / nvkm / engine / disp / piornv50.c
1 /*
2  * Copyright 2012 Red Hat 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  * Authors: Ben Skeggs
23  */
24 #include "outpdp.h"
25 #include "nv50.h"
26
27 #include <core/client.h>
28 #include <subdev/i2c.h>
29 #include <subdev/timer.h>
30
31 #include <nvif/class.h>
32 #include <nvif/unpack.h>
33
34 int
35 nv50_pior_power(NV50_DISP_MTHD_V1)
36 {
37         struct nvkm_device *device = disp->base.engine.subdev.device;
38         const u32 soff = outp->or * 0x800;
39         union {
40                 struct nv50_disp_pior_pwr_v0 v0;
41         } *args = data;
42         u32 ctrl, type;
43         int ret;
44
45         nvif_ioctl(object, "disp pior pwr size %d\n", size);
46         if (nvif_unpack(args->v0, 0, 0, false)) {
47                 nvif_ioctl(object, "disp pior pwr vers %d state %d type %x\n",
48                            args->v0.version, args->v0.state, args->v0.type);
49                 if (args->v0.type > 0x0f)
50                         return -EINVAL;
51                 ctrl = !!args->v0.state;
52                 type = args->v0.type;
53         } else
54                 return ret;
55
56         nvkm_msec(device, 2000,
57                 if (!(nvkm_rd32(device, 0x61e004 + soff) & 0x80000000))
58                         break;
59         );
60         nvkm_mask(device, 0x61e004 + soff, 0x80000101, 0x80000000 | ctrl);
61         nvkm_msec(device, 2000,
62                 if (!(nvkm_rd32(device, 0x61e004 + soff) & 0x80000000))
63                         break;
64         );
65         disp->pior.type[outp->or] = type;
66         return 0;
67 }
68
69 /******************************************************************************
70  * TMDS
71  *****************************************************************************/
72 static const struct nvkm_output_func
73 nv50_pior_output_func = {
74 };
75
76 int
77 nv50_pior_output_new(struct nvkm_disp *disp, int index,
78                      struct dcb_output *dcbE, struct nvkm_output **poutp)
79 {
80         return nvkm_output_new_(&nv50_pior_output_func, disp,
81                                 index, dcbE, poutp);
82 }
83
84 /******************************************************************************
85  * DisplayPort
86  *****************************************************************************/
87 static int
88 nv50_pior_output_dp_pattern(struct nvkm_output_dp *outp, int pattern)
89 {
90         return 0;
91 }
92
93 static int
94 nv50_pior_output_dp_lnk_pwr(struct nvkm_output_dp *outp, int nr)
95 {
96         return 0;
97 }
98
99 static int
100 nv50_pior_output_dp_lnk_ctl(struct nvkm_output_dp *outp,
101                             int nr, int bw, bool ef)
102 {
103         int ret = nvkm_i2c_aux_lnk_ctl(outp->aux, nr, bw, ef);
104         if (ret)
105                 return ret;
106         return 1;
107 }
108
109 static const struct nvkm_output_dp_func
110 nv50_pior_output_dp_func = {
111         .pattern = nv50_pior_output_dp_pattern,
112         .lnk_pwr = nv50_pior_output_dp_lnk_pwr,
113         .lnk_ctl = nv50_pior_output_dp_lnk_ctl,
114 };
115
116 int
117 nv50_pior_dp_new(struct nvkm_disp *disp, int index, struct dcb_output *dcbE,
118                  struct nvkm_output **poutp)
119 {
120         struct nvkm_i2c *i2c = disp->engine.subdev.device->i2c;
121         struct nvkm_i2c_aux *aux =
122                 nvkm_i2c_aux_find(i2c, NVKM_I2C_AUX_EXT(dcbE->extdev));
123         struct nvkm_output_dp *outp;
124
125         if (!(outp = kzalloc(sizeof(*outp), GFP_KERNEL)))
126                 return -ENOMEM;
127         *poutp = &outp->base;
128
129         return nvkm_output_dp_ctor(&nv50_pior_output_dp_func, disp,
130                                    index, dcbE, aux, outp);
131 }