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
nouveau_platform_probe(struct platform_device * pdev)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
30 func = of_device_get_match_data(&pdev->dev);
31
32 drm = nouveau_platform_device_create(func, pdev, &device);
33 if (IS_ERR(drm))
34 return PTR_ERR(drm);
35
36 return 0;
37 }
38
nouveau_platform_remove(struct platform_device * pdev)39 static void nouveau_platform_remove(struct platform_device *pdev)
40 {
41 struct nouveau_drm *drm = platform_get_drvdata(pdev);
42
43 nouveau_drm_device_remove(drm);
44 }
45
46 #if IS_ENABLED(CONFIG_OF)
47 static const struct nvkm_device_tegra_func gk20a_platform_data = {
48 .iommu_bit = 34,
49 .require_vdd = true,
50 };
51
52 static const struct nvkm_device_tegra_func gm20b_platform_data = {
53 .iommu_bit = 34,
54 .require_vdd = true,
55 .require_ref_clk = true,
56 };
57
58 static const struct nvkm_device_tegra_func gp10b_platform_data = {
59 .iommu_bit = 36,
60 /* power provided by generic PM domains */
61 .require_vdd = false,
62 };
63
64 static const struct of_device_id nouveau_platform_match[] = {
65 {
66 .compatible = "nvidia,gk20a",
67 .data = &gk20a_platform_data,
68 },
69 {
70 .compatible = "nvidia,gm20b",
71 .data = &gm20b_platform_data,
72 },
73 {
74 .compatible = "nvidia,gp10b",
75 .data = &gp10b_platform_data,
76 },
77 { }
78 };
79
80 MODULE_DEVICE_TABLE(of, nouveau_platform_match);
81 #endif
82
83 struct platform_driver nouveau_platform_driver = {
84 .driver = {
85 .name = "nouveau",
86 .of_match_table = of_match_ptr(nouveau_platform_match),
87 },
88 .probe = nouveau_platform_probe,
89 .remove = nouveau_platform_remove,
90 };
91