1 // SPDX-License-Identifier: MIT 2 /* 3 * Copyright 2012 Red Hat Inc. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sub license, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 16 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, 17 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 18 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 19 * USE OR OTHER DEALINGS IN THE SOFTWARE. 20 * 21 * The above copyright notice and this permission notice (including the 22 * next paragraph) shall be included in all copies or substantial portions 23 * of the Software. 24 */ 25 /* 26 * Authors: Dave Airlie <airlied@redhat.com> 27 */ 28 29 #include <linux/pci.h> 30 31 #include <drm/drm_drv.h> 32 33 #include "ast_drv.h" 34 35 static void ast_2200_detect_widescreen(struct ast_device *ast) 36 { 37 if (__ast_2100_detect_wsxga_p(ast)) { 38 ast->support_wsxga_p = true; 39 if (ast->chip == AST2200) 40 ast->support_fullhd = true; 41 } 42 if (__ast_2100_detect_wuxga(ast)) 43 ast->support_wuxga = true; 44 } 45 46 static const struct ast_device_quirks ast_2200_device_quirks = { 47 .crtc_mem_req_threshold_low = 47, 48 .crtc_mem_req_threshold_high = 63, 49 }; 50 51 struct drm_device *ast_2200_device_create(struct pci_dev *pdev, 52 const struct drm_driver *drv, 53 enum ast_chip chip, 54 enum ast_config_mode config_mode, 55 void __iomem *regs, 56 void __iomem *ioregs, 57 bool need_post) 58 { 59 struct drm_device *dev; 60 struct ast_device *ast; 61 int ret; 62 63 ast = devm_drm_dev_alloc(&pdev->dev, drv, struct ast_device, base); 64 if (IS_ERR(ast)) 65 return ERR_CAST(ast); 66 dev = &ast->base; 67 68 ast_device_init(ast, chip, config_mode, regs, ioregs, &ast_2200_device_quirks); 69 70 ast->dclk_table = ast_2000_dclk_table; 71 72 ast_2000_detect_tx_chip(ast, need_post); 73 74 if (need_post) { 75 ret = ast_post_gpu(ast); 76 if (ret) 77 return ERR_PTR(ret); 78 } 79 80 ret = ast_mm_init(ast); 81 if (ret) 82 return ERR_PTR(ret); 83 84 ast_2200_detect_widescreen(ast); 85 86 ret = ast_mode_config_init(ast); 87 if (ret) 88 return ERR_PTR(ret); 89 90 return dev; 91 } 92 93