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