diff options
Diffstat (limited to 'drivers/gpu/drm/drm_platform.c')
| -rw-r--r-- | drivers/gpu/drm/drm_platform.c | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/drivers/gpu/drm/drm_platform.c b/drivers/gpu/drm/drm_platform.c deleted file mode 100644 index b8a282ea8751..000000000000 --- a/drivers/gpu/drm/drm_platform.c +++ /dev/null @@ -1,205 +0,0 @@ -/* - * 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. - */ - -int drm_get_platform_dev(struct platform_device *platdev, - struct drm_driver *driver) -{ - struct drm_device *dev; - int ret; - - DRM_DEBUG("\n"); - - dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (!dev) - return -ENOMEM; - - dev->platformdev = platdev; - dev->dev = &platdev->dev; - - mutex_lock(&drm_global_mutex); - - ret = drm_fill_in_dev(dev, NULL, driver); - - if (ret) { - printk(KERN_ERR "DRM: Fill_in_dev failed.\n"); - goto err_g1; - } - - if (drm_core_check_feature(dev, DRIVER_MODESET)) { - ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL); - if (ret) - goto err_g1; - } - - ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY); - if (ret) - goto err_g2; - - if (dev->driver->load) { - ret = dev->driver->load(dev, 0); - if (ret) - goto err_g3; - } - - /* setup the grouping for the legacy output */ - if (drm_core_check_feature(dev, DRIVER_MODESET)) { - ret = drm_mode_group_init_legacy_group(dev, - &dev->primary->mode_group); - if (ret) - goto err_g3; - } - - list_add_tail(&dev->driver_item, &driver->device_list); - - mutex_unlock(&drm_global_mutex); - - 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_g3: - drm_put_minor(&dev->primary); -err_g2: - if (drm_core_check_feature(dev, DRIVER_MODESET)) - drm_put_minor(&dev->control); -err_g1: - kfree(dev); - mutex_unlock(&drm_global_mutex); - return ret; -} -EXPORT_SYMBOL(drm_get_platform_dev); - -static int drm_platform_get_irq(struct drm_device *dev) -{ - return platform_get_irq(dev->platformdev, 0); -} - -static const char *drm_platform_get_name(struct drm_device *dev) -{ - return dev->platformdev->name; -} - -static int drm_platform_set_busid(struct drm_device *dev, struct drm_master *master) -{ - int len, ret, id; - - master->unique_len = 13 + strlen(dev->platformdev->name); - master->unique_size = master->unique_len; - master->unique = kmalloc(master->unique_len + 1, GFP_KERNEL); - - if (master->unique == NULL) - return -ENOMEM; - - id = dev->platformdev->id; - - /* if only a single instance of the platform device, id will be - * set to -1.. use 0 instead to avoid a funny looking bus-id: - */ - if (id == -1) - id = 0; - - len = snprintf(master->unique, master->unique_len, - "platform:%s:%02d", dev->platformdev->name, id); - - if (len > master->unique_len) { - DRM_ERROR("Unique buffer overflowed\n"); - ret = -EINVAL; - goto err; - } - - dev->devname = - kmalloc(strlen(dev->platformdev->name) + - master->unique_len + 2, GFP_KERNEL); - - if (dev->devname == NULL) { - ret = -ENOMEM; - goto err; - } - - sprintf(dev->devname, "%s@%s", dev->platformdev->name, - master->unique); - return 0; -err: - return ret; -} - -static struct drm_bus drm_platform_bus = { - .bus_type = DRIVER_BUS_PLATFORM, - .get_irq = drm_platform_get_irq, - .get_name = drm_platform_get_name, - .set_busid = drm_platform_set_busid, -}; - -/** - * Platform device initialization. Called direct from modules. - * - * \return zero on success or a negative number on failure. - * - * Initializes a drm_device structures,registering the - * stubs - * - * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and - * after the initialization for driver customization. - */ - -int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device) -{ - DRM_DEBUG("\n"); - - driver->kdriver.platform_device = platform_device; - driver->bus = &drm_platform_bus; - INIT_LIST_HEAD(&driver->device_list); - return drm_get_platform_dev(platform_device, driver); -} -EXPORT_SYMBOL(drm_platform_init); - -void drm_platform_exit(struct drm_driver *driver, struct platform_device *platform_device) -{ - struct drm_device *dev, *tmp; - DRM_DEBUG("\n"); - - list_for_each_entry_safe(dev, tmp, &driver->device_list, driver_item) - drm_put_dev(dev); - DRM_INFO("Module unloaded\n"); -} -EXPORT_SYMBOL(drm_platform_exit); |