diff options
Diffstat (limited to 'drivers/gpu/drm/arc/arcpgu_drv.c')
| -rw-r--r-- | drivers/gpu/drm/arc/arcpgu_drv.c | 249 |
1 files changed, 0 insertions, 249 deletions
diff --git a/drivers/gpu/drm/arc/arcpgu_drv.c b/drivers/gpu/drm/arc/arcpgu_drv.c deleted file mode 100644 index 3e43a5d4fb09..000000000000 --- a/drivers/gpu/drm/arc/arcpgu_drv.c +++ /dev/null @@ -1,249 +0,0 @@ -/* - * ARC PGU DRM driver. - * - * Copyright (C) 2016 Synopsys, Inc. (www.synopsys.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/clk.h> -#include <drm/drm_crtc_helper.h> -#include <drm/drm_fb_cma_helper.h> -#include <drm/drm_gem_cma_helper.h> -#include <drm/drm_atomic_helper.h> -#include <linux/of_reserved_mem.h> - -#include "arcpgu.h" -#include "arcpgu_regs.h" - -static void arcpgu_fb_output_poll_changed(struct drm_device *dev) -{ - struct arcpgu_drm_private *arcpgu = dev->dev_private; - - drm_fbdev_cma_hotplug_event(arcpgu->fbdev); -} - -static struct drm_mode_config_funcs arcpgu_drm_modecfg_funcs = { - .fb_create = drm_fb_cma_create, - .output_poll_changed = arcpgu_fb_output_poll_changed, - .atomic_check = drm_atomic_helper_check, - .atomic_commit = drm_atomic_helper_commit, -}; - -static void arcpgu_setup_mode_config(struct drm_device *drm) -{ - drm_mode_config_init(drm); - drm->mode_config.min_width = 0; - drm->mode_config.min_height = 0; - drm->mode_config.max_width = 1920; - drm->mode_config.max_height = 1080; - drm->mode_config.funcs = &arcpgu_drm_modecfg_funcs; -} - -static int arcpgu_gem_mmap(struct file *filp, struct vm_area_struct *vma) -{ - int ret; - - ret = drm_gem_mmap(filp, vma); - if (ret) - return ret; - - vma->vm_page_prot = pgprot_noncached(vm_get_page_prot(vma->vm_flags)); - return 0; -} - -static const struct file_operations arcpgu_drm_ops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, - .compat_ioctl = drm_compat_ioctl, - .poll = drm_poll, - .read = drm_read, - .llseek = no_llseek, - .mmap = arcpgu_gem_mmap, -}; - -static void arcpgu_lastclose(struct drm_device *drm) -{ - struct arcpgu_drm_private *arcpgu = drm->dev_private; - - drm_fbdev_cma_restore_mode(arcpgu->fbdev); -} - -static int arcpgu_load(struct drm_device *drm) -{ - struct platform_device *pdev = to_platform_device(drm->dev); - struct arcpgu_drm_private *arcpgu; - struct device_node *encoder_node; - struct resource *res; - int ret; - - arcpgu = devm_kzalloc(&pdev->dev, sizeof(*arcpgu), GFP_KERNEL); - if (arcpgu == NULL) - return -ENOMEM; - - drm->dev_private = arcpgu; - - arcpgu->clk = devm_clk_get(drm->dev, "pxlclk"); - if (IS_ERR(arcpgu->clk)) - return PTR_ERR(arcpgu->clk); - - arcpgu_setup_mode_config(drm); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - arcpgu->regs = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(arcpgu->regs)) - return PTR_ERR(arcpgu->regs); - - dev_info(drm->dev, "arc_pgu ID: 0x%x\n", - arc_pgu_read(arcpgu, ARCPGU_REG_ID)); - - /* Get the optional framebuffer memory resource */ - ret = of_reserved_mem_device_init(drm->dev); - if (ret && ret != -ENODEV) - return ret; - - if (dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32))) - return -ENODEV; - - if (arc_pgu_setup_crtc(drm) < 0) - return -ENODEV; - - /* find the encoder node and initialize it */ - encoder_node = of_parse_phandle(drm->dev->of_node, "encoder-slave", 0); - if (encoder_node) { - ret = arcpgu_drm_hdmi_init(drm, encoder_node); - of_node_put(encoder_node); - if (ret < 0) - return ret; - } else { - ret = arcpgu_drm_sim_init(drm, NULL); - if (ret < 0) - return ret; - } - - drm_mode_config_reset(drm); - drm_kms_helper_poll_init(drm); - - arcpgu->fbdev = drm_fbdev_cma_init(drm, 16, - drm->mode_config.num_connector); - if (IS_ERR(arcpgu->fbdev)) { - ret = PTR_ERR(arcpgu->fbdev); - arcpgu->fbdev = NULL; - return -ENODEV; - } - - platform_set_drvdata(pdev, arcpgu); - return 0; -} - -static int arcpgu_unload(struct drm_device *drm) -{ - struct arcpgu_drm_private *arcpgu = drm->dev_private; - - if (arcpgu->fbdev) { - drm_fbdev_cma_fini(arcpgu->fbdev); - arcpgu->fbdev = NULL; - } - drm_kms_helper_poll_fini(drm); - drm_mode_config_cleanup(drm); - - return 0; -} - -static struct drm_driver arcpgu_drm_driver = { - .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | - DRIVER_ATOMIC, - .lastclose = arcpgu_lastclose, - .name = "drm-arcpgu", - .desc = "ARC PGU Controller", - .date = "20160219", - .major = 1, - .minor = 0, - .patchlevel = 0, - .fops = &arcpgu_drm_ops, - .dumb_create = drm_gem_cma_dumb_create, - .dumb_map_offset = drm_gem_cma_dumb_map_offset, - .dumb_destroy = drm_gem_dumb_destroy, - .prime_handle_to_fd = drm_gem_prime_handle_to_fd, - .prime_fd_to_handle = drm_gem_prime_fd_to_handle, - .gem_free_object_unlocked = drm_gem_cma_free_object, - .gem_vm_ops = &drm_gem_cma_vm_ops, - .gem_prime_export = drm_gem_prime_export, - .gem_prime_import = drm_gem_prime_import, - .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table, - .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table, - .gem_prime_vmap = drm_gem_cma_prime_vmap, - .gem_prime_vunmap = drm_gem_cma_prime_vunmap, - .gem_prime_mmap = drm_gem_cma_prime_mmap, -}; - -static int arcpgu_probe(struct platform_device *pdev) -{ - struct drm_device *drm; - int ret; - - drm = drm_dev_alloc(&arcpgu_drm_driver, &pdev->dev); - if (IS_ERR(drm)) - return PTR_ERR(drm); - - ret = arcpgu_load(drm); - if (ret) - goto err_unref; - - ret = drm_dev_register(drm, 0); - if (ret) - goto err_unload; - - return 0; - -err_unload: - arcpgu_unload(drm); - -err_unref: - drm_dev_unref(drm); - - return ret; -} - -static int arcpgu_remove(struct platform_device *pdev) -{ - struct drm_device *drm = platform_get_drvdata(pdev); - - drm_dev_unregister(drm); - arcpgu_unload(drm); - drm_dev_unref(drm); - - return 0; -} - -static const struct of_device_id arcpgu_of_table[] = { - {.compatible = "snps,arcpgu"}, - {} -}; - -MODULE_DEVICE_TABLE(of, arcpgu_of_table); - -static struct platform_driver arcpgu_platform_driver = { - .probe = arcpgu_probe, - .remove = arcpgu_remove, - .driver = { - .name = "arcpgu", - .of_match_table = arcpgu_of_table, - }, -}; - -module_platform_driver(arcpgu_platform_driver); - -MODULE_AUTHOR("Carlos Palminha <palminha@synopsys.com>"); -MODULE_DESCRIPTION("ARC PGU DRM driver"); -MODULE_LICENSE("GPL"); |