cregit-Linux how code gets into the kernel

Release 4.7 drivers/gpu/drm/drm_platform.c

Directory: drivers/gpu/drm
/*
 * Derived from drm_pci.c
 *
 * Copyright 2003 José Fonseca.
 * Copyright 2003 Leif Delgass.
 * Copyright (c) 2009, Code Aurora Forum.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
 * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include <linux/export.h>
#include <drm/drmP.h>

/*
 * Register.
 *
 * \param platdev - Platform device struture
 * \return zero on success or a negative number on failure.
 *
 * Attempt to gets inter module "drm" information. If we are first
 * then register the character device and inter module information.
 * Try and register, if we fail to register, backout previous work.
 */


static int drm_get_platform_dev(struct platform_device *platdev, struct drm_driver *driver) { struct drm_device *dev; int ret; DRM_DEBUG("\n"); dev = drm_dev_alloc(driver, &platdev->dev); if (!dev) return -ENOMEM; dev->platformdev = platdev; ret = drm_dev_register(dev, 0); if (ret) goto err_free; DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", driver->name, driver->major, driver->minor, driver->patchlevel, driver->date, dev->primary->index); return 0; err_free: drm_dev_unref(dev); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
jordan crousejordan crouse10590.52%120.00%
david herrmanndavid herrmann108.62%360.00%
damien lespiaudamien lespiau10.86%120.00%
Total116100.00%5100.00%


int drm_platform_set_busid(struct drm_device *dev, struct drm_master *master) { int id; id = dev->platformdev->id; if (id < 0) id = 0; master->unique = kasprintf(GFP_KERNEL, "platform:%s:%02d", dev->platformdev->name, id); if (!master->unique) return -ENOMEM; master->unique_len = strlen(master->unique); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
dave airliedave airlie4050.00%125.00%
rob clarkrob clark2025.00%250.00%
david herrmanndavid herrmann2025.00%125.00%
Total80100.00%4100.00%

EXPORT_SYMBOL(drm_platform_set_busid); /** * drm_platform_init - Register a platform device with the DRM subsystem * @driver: DRM device driver * @platform_device: platform device to register * * Registers the specified DRM device driver and platform device with the DRM * subsystem, initializing a drm_device structure and calling the driver's * .load() function. * * NOTE: This function is deprecated, please use drm_dev_alloc() and * drm_dev_register() instead and remove your ->load() callback. * * Return: 0 on success or a negative error code on failure. */
int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device) { DRM_DEBUG("\n"); return drm_get_platform_dev(platform_device, driver); }

Contributors

PersonTokensPropCommitsCommitProp
jordan crousejordan crouse1553.57%150.00%
dave airliedave airlie1346.43%150.00%
Total28100.00%2100.00%

EXPORT_SYMBOL(drm_platform_init);

Overall Contributors

PersonTokensPropCommitsCommitProp
jordan crousejordan crouse12350.62%17.69%
dave airliedave airlie5823.87%17.69%
david herrmanndavid herrmann3514.40%538.46%
rob clarkrob clark208.23%215.38%
paul gortmakerpaul gortmaker31.23%17.69%
damien lespiaudamien lespiau20.82%17.69%
david howellsdavid howells10.41%17.69%
daniel vetterdaniel vetter10.41%17.69%
Total243100.00%13100.00%
Directory: drivers/gpu/drm
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