1dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse/* 2dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * Derived from drm_pci.c 3dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * 4dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * Copyright 2003 José Fonseca. 5dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * Copyright 2003 Leif Delgass. 6dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * Copyright (c) 2009, Code Aurora Forum. 7dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * All Rights Reserved. 8dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * 9dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * Permission is hereby granted, free of charge, to any person obtaining a 10dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * copy of this software and associated documentation files (the "Software"), 11dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * to deal in the Software without restriction, including without limitation 12dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * the rights to use, copy, modify, merge, publish, distribute, sublicense, 13dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * and/or sell copies of the Software, and to permit persons to whom the 14dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * Software is furnished to do so, subject to the following conditions: 15dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * 16dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * The above copyright notice and this permission notice (including the next 17dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * paragraph) shall be included in all copies or substantial portions of the 18dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * Software. 19dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * 20dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 21dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 22dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 23dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 24dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 25dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 26dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse */ 27dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse 282d1a8a48ac68a835c42d8a31a02b8158cd599615Paul Gortmaker#include <linux/export.h> 29760285e7e7ab282c25b5e90816f7c47000557f4fDavid Howells#include <drm/drmP.h> 30dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse 3166cc8b6b8b2b3b5c9a67429af04ec356ff7fcfa4Lespiau, Damien/* 32dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * Register. 33dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * 34dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * \param platdev - Platform device struture 35dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * \return zero on success or a negative number on failure. 36dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * 37dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * Attempt to gets inter module "drm" information. If we are first 38dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * then register the character device and inter module information. 39dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * Try and register, if we fail to register, backout previous work. 40dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse */ 41dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse 4266cc8b6b8b2b3b5c9a67429af04ec356ff7fcfa4Lespiau, Damienstatic int drm_get_platform_dev(struct platform_device *platdev, 4366cc8b6b8b2b3b5c9a67429af04ec356ff7fcfa4Lespiau, Damien struct drm_driver *driver) 44dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse{ 45dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse struct drm_device *dev; 46dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse int ret; 47dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse 48dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse DRM_DEBUG("\n"); 49dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse 501bb72532ac260a2d3982b40bdd4c936d779d0d16David Herrmann dev = drm_dev_alloc(driver, &platdev->dev); 51dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse if (!dev) 52dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse return -ENOMEM; 53dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse 54dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse dev->platformdev = platdev; 55dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse 56c22f0ace1926da399d9a16dfaf09174c1b03594cDavid Herrmann ret = drm_dev_register(dev, 0); 57dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse if (ret) 58c22f0ace1926da399d9a16dfaf09174c1b03594cDavid Herrmann goto err_free; 59b64c115eb22516ecd187c74ad6de3f1693f1dc7bDave Airlie 60dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", 61dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse driver->name, driver->major, driver->minor, driver->patchlevel, 62dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse driver->date, dev->primary->index); 63dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse 64dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse return 0; 65dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse 66c22f0ace1926da399d9a16dfaf09174c1b03594cDavid Herrmannerr_free: 67099d1c290e2ebc3b798961a6c177c3aef5f0b789David Herrmann drm_dev_unref(dev); 68dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse return ret; 69dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse} 70dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse 71915b4d11b8b9e7b84ba4a4645b6cc7fbc0c071cfDavid Herrmannint drm_platform_set_busid(struct drm_device *dev, struct drm_master *master) 728410ea3b95d105a5be5db501656f44bbb91197c1Dave Airlie{ 73d0a39164b6adad0cec5046b6aad6b590cc9466ccDavid Herrmann int id; 748410ea3b95d105a5be5db501656f44bbb91197c1Dave Airlie 75b19c19afa880105179b3c25e57b169c8fcda334cRob Clark id = dev->platformdev->id; 76d0a39164b6adad0cec5046b6aad6b590cc9466ccDavid Herrmann if (id < 0) 77b19c19afa880105179b3c25e57b169c8fcda334cRob Clark id = 0; 78b19c19afa880105179b3c25e57b169c8fcda334cRob Clark 79d0a39164b6adad0cec5046b6aad6b590cc9466ccDavid Herrmann master->unique = kasprintf(GFP_KERNEL, "platform:%s:%02d", 80d0a39164b6adad0cec5046b6aad6b590cc9466ccDavid Herrmann dev->platformdev->name, id); 81d0a39164b6adad0cec5046b6aad6b590cc9466ccDavid Herrmann if (!master->unique) 82d0a39164b6adad0cec5046b6aad6b590cc9466ccDavid Herrmann return -ENOMEM; 838410ea3b95d105a5be5db501656f44bbb91197c1Dave Airlie 84d0a39164b6adad0cec5046b6aad6b590cc9466ccDavid Herrmann master->unique_len = strlen(master->unique); 858410ea3b95d105a5be5db501656f44bbb91197c1Dave Airlie return 0; 868410ea3b95d105a5be5db501656f44bbb91197c1Dave Airlie} 87915b4d11b8b9e7b84ba4a4645b6cc7fbc0c071cfDavid HerrmannEXPORT_SYMBOL(drm_platform_set_busid); 888410ea3b95d105a5be5db501656f44bbb91197c1Dave Airlie 89dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse/** 90c6a1af8a1621913e2658eaff419bab7028b2c42cThierry Reding * drm_platform_init - Register a platform device with the DRM subsystem 91c6a1af8a1621913e2658eaff419bab7028b2c42cThierry Reding * @driver: DRM device driver 92c6a1af8a1621913e2658eaff419bab7028b2c42cThierry Reding * @platform_device: platform device to register 93dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * 94c6a1af8a1621913e2658eaff419bab7028b2c42cThierry Reding * Registers the specified DRM device driver and platform device with the DRM 95c6a1af8a1621913e2658eaff419bab7028b2c42cThierry Reding * subsystem, initializing a drm_device structure and calling the driver's 96c6a1af8a1621913e2658eaff419bab7028b2c42cThierry Reding * .load() function. 97dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse * 98c6a1af8a1621913e2658eaff419bab7028b2c42cThierry Reding * Return: 0 on success or a negative error code on failure. 99dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse */ 1008410ea3b95d105a5be5db501656f44bbb91197c1Dave Airlieint drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device) 101dcdb167402cbdca1d021bdfa5f63995ee0a79317Jordan Crouse{ 1028410ea3b95d105a5be5db501656f44bbb91197c1Dave Airlie DRM_DEBUG("\n"); 1038410ea3b95d105a5be5db501656f44bbb91197c1Dave Airlie 1048410ea3b95d105a5be5db501656f44bbb91197c1Dave Airlie return drm_get_platform_dev(platform_device, driver); 1058410ea3b95d105a5be5db501656f44bbb91197c1Dave Airlie} 1068410ea3b95d105a5be5db501656f44bbb91197c1Dave AirlieEXPORT_SYMBOL(drm_platform_init); 107