1 | /* |
2 | * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. |
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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
19 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
20 | * DEALINGS IN THE SOFTWARE. |
21 | */ |
22 | #include "nouveau_platform.h" |
23 | |
24 | static int nouveau_platform_probe(struct platform_device *pdev) |
25 | { |
26 | const struct nvkm_device_tegra_func *func; |
27 | struct nvkm_device *device = NULL; |
28 | struct drm_device *drm; |
29 | int ret; |
30 | |
31 | func = of_device_get_match_data(&pdev->dev); |
32 | |
33 | drm = nouveau_platform_device_create(func, pdev, &device); |
34 | if (IS_ERR(ptr: drm)) |
35 | return PTR_ERR(ptr: drm); |
36 | |
37 | ret = drm_dev_register(dev: drm, flags: 0); |
38 | if (ret < 0) { |
39 | drm_dev_put(dev: drm); |
40 | return ret; |
41 | } |
42 | |
43 | return 0; |
44 | } |
45 | |
46 | static void nouveau_platform_remove(struct platform_device *pdev) |
47 | { |
48 | struct drm_device *dev = platform_get_drvdata(pdev); |
49 | nouveau_drm_device_remove(dev); |
50 | } |
51 | |
52 | #if IS_ENABLED(CONFIG_OF) |
53 | static const struct nvkm_device_tegra_func gk20a_platform_data = { |
54 | .iommu_bit = 34, |
55 | .require_vdd = true, |
56 | }; |
57 | |
58 | static const struct nvkm_device_tegra_func gm20b_platform_data = { |
59 | .iommu_bit = 34, |
60 | .require_vdd = true, |
61 | .require_ref_clk = true, |
62 | }; |
63 | |
64 | static const struct nvkm_device_tegra_func gp10b_platform_data = { |
65 | .iommu_bit = 36, |
66 | /* power provided by generic PM domains */ |
67 | .require_vdd = false, |
68 | }; |
69 | |
70 | static const struct of_device_id nouveau_platform_match[] = { |
71 | { |
72 | .compatible = "nvidia,gk20a" , |
73 | .data = &gk20a_platform_data, |
74 | }, |
75 | { |
76 | .compatible = "nvidia,gm20b" , |
77 | .data = &gm20b_platform_data, |
78 | }, |
79 | { |
80 | .compatible = "nvidia,gp10b" , |
81 | .data = &gp10b_platform_data, |
82 | }, |
83 | { } |
84 | }; |
85 | |
86 | MODULE_DEVICE_TABLE(of, nouveau_platform_match); |
87 | #endif |
88 | |
89 | struct platform_driver nouveau_platform_driver = { |
90 | .driver = { |
91 | .name = "nouveau" , |
92 | .of_match_table = of_match_ptr(nouveau_platform_match), |
93 | }, |
94 | .probe = nouveau_platform_probe, |
95 | .remove_new = nouveau_platform_remove, |
96 | }; |
97 | |