![Rahul Sharma](/assets/img/avatar_default.png)
This patch moved the exynos-drm-hdmi platform device registration to the drm driver. When DT is enabled, platform devices needs to be registered within the driver code. This patch fits the requirement of both DT and Non DT based drm drivers. Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
447 lines
11 KiB
C
447 lines
11 KiB
C
/*
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* Copyright (c) 2011 Samsung Electronics Co., Ltd.
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* Authors:
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* Inki Dae <inki.dae@samsung.com>
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* Joonyoung Shim <jy0922.shim@samsung.com>
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* Seung-Woo Kim <sw0312.kim@samsung.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <drm/drmP.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/exynos_drm.h>
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#include "exynos_drm_drv.h"
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#include "exynos_drm_crtc.h"
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#include "exynos_drm_encoder.h"
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#include "exynos_drm_fbdev.h"
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#include "exynos_drm_fb.h"
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#include "exynos_drm_gem.h"
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#include "exynos_drm_plane.h"
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#include "exynos_drm_vidi.h"
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#include "exynos_drm_dmabuf.h"
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#include "exynos_drm_g2d.h"
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#include "exynos_drm_iommu.h"
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#define DRIVER_NAME "exynos"
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#define DRIVER_DESC "Samsung SoC DRM"
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#define DRIVER_DATE "20110530"
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#define DRIVER_MAJOR 1
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#define DRIVER_MINOR 0
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#define VBLANK_OFF_DELAY 50000
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/* platform device pointer for eynos drm device. */
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static struct platform_device *exynos_drm_pdev;
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static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
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{
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struct exynos_drm_private *private;
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int ret;
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int nr;
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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
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if (!private) {
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DRM_ERROR("failed to allocate private\n");
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return -ENOMEM;
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}
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INIT_LIST_HEAD(&private->pageflip_event_list);
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dev->dev_private = (void *)private;
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/*
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* create mapping to manage iommu table and set a pointer to iommu
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* mapping structure to iommu_mapping of private data.
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* also this iommu_mapping can be used to check if iommu is supported
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* or not.
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*/
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ret = drm_create_iommu_mapping(dev);
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if (ret < 0) {
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DRM_ERROR("failed to create iommu mapping.\n");
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goto err_crtc;
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}
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drm_mode_config_init(dev);
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/* init kms poll for handling hpd */
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drm_kms_helper_poll_init(dev);
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exynos_drm_mode_config_init(dev);
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/*
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* EXYNOS4 is enough to have two CRTCs and each crtc would be used
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* without dependency of hardware.
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*/
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for (nr = 0; nr < MAX_CRTC; nr++) {
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ret = exynos_drm_crtc_create(dev, nr);
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if (ret)
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goto err_release_iommu_mapping;
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}
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for (nr = 0; nr < MAX_PLANE; nr++) {
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struct drm_plane *plane;
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unsigned int possible_crtcs = (1 << MAX_CRTC) - 1;
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plane = exynos_plane_init(dev, possible_crtcs, false);
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if (!plane)
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goto err_release_iommu_mapping;
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}
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ret = drm_vblank_init(dev, MAX_CRTC);
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if (ret)
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goto err_release_iommu_mapping;
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/*
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* probe sub drivers such as display controller and hdmi driver,
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* that were registered at probe() of platform driver
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* to the sub driver and create encoder and connector for them.
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*/
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ret = exynos_drm_device_register(dev);
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if (ret)
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goto err_vblank;
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/* setup possible_clones. */
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exynos_drm_encoder_setup(dev);
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/*
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* create and configure fb helper and also exynos specific
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* fbdev object.
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*/
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ret = exynos_drm_fbdev_init(dev);
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if (ret) {
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DRM_ERROR("failed to initialize drm fbdev\n");
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goto err_drm_device;
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}
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drm_vblank_offdelay = VBLANK_OFF_DELAY;
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return 0;
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err_drm_device:
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exynos_drm_device_unregister(dev);
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err_vblank:
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drm_vblank_cleanup(dev);
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err_release_iommu_mapping:
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drm_release_iommu_mapping(dev);
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err_crtc:
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drm_mode_config_cleanup(dev);
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kfree(private);
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return ret;
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}
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static int exynos_drm_unload(struct drm_device *dev)
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{
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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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exynos_drm_fbdev_fini(dev);
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exynos_drm_device_unregister(dev);
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drm_vblank_cleanup(dev);
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drm_kms_helper_poll_fini(dev);
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drm_mode_config_cleanup(dev);
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drm_release_iommu_mapping(dev);
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kfree(dev->dev_private);
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dev->dev_private = NULL;
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return 0;
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}
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static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
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{
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struct drm_exynos_file_private *file_priv;
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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
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if (!file_priv)
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return -ENOMEM;
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file->driver_priv = file_priv;
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return exynos_drm_subdrv_open(dev, file);
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}
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static void exynos_drm_preclose(struct drm_device *dev,
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struct drm_file *file)
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{
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struct exynos_drm_private *private = dev->dev_private;
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struct drm_pending_vblank_event *e, *t;
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unsigned long flags;
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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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/* release events of current file */
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spin_lock_irqsave(&dev->event_lock, flags);
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list_for_each_entry_safe(e, t, &private->pageflip_event_list,
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base.link) {
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if (e->base.file_priv == file) {
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list_del(&e->base.link);
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e->base.destroy(&e->base);
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}
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}
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spin_unlock_irqrestore(&dev->event_lock, flags);
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exynos_drm_subdrv_close(dev, file);
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}
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static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
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{
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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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if (!file->driver_priv)
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return;
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kfree(file->driver_priv);
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file->driver_priv = NULL;
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}
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static void exynos_drm_lastclose(struct drm_device *dev)
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{
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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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exynos_drm_fbdev_restore_mode(dev);
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}
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static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
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.fault = exynos_drm_gem_fault,
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.open = drm_gem_vm_open,
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.close = drm_gem_vm_close,
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};
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static struct drm_ioctl_desc exynos_ioctls[] = {
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DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
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DRM_UNLOCKED | DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
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exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
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DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
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exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
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exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
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DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
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vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
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exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
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exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
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exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
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};
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static const struct file_operations exynos_drm_driver_fops = {
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.owner = THIS_MODULE,
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.open = drm_open,
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.mmap = exynos_drm_gem_mmap,
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.poll = drm_poll,
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.read = drm_read,
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.unlocked_ioctl = drm_ioctl,
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#ifdef CONFIG_COMPAT
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.compat_ioctl = drm_compat_ioctl,
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#endif
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.release = drm_release,
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};
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static struct drm_driver exynos_drm_driver = {
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.driver_features = DRIVER_HAVE_IRQ | DRIVER_MODESET |
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DRIVER_GEM | DRIVER_PRIME,
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.load = exynos_drm_load,
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.unload = exynos_drm_unload,
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.open = exynos_drm_open,
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.preclose = exynos_drm_preclose,
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.lastclose = exynos_drm_lastclose,
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.postclose = exynos_drm_postclose,
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.get_vblank_counter = drm_vblank_count,
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.enable_vblank = exynos_drm_crtc_enable_vblank,
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.disable_vblank = exynos_drm_crtc_disable_vblank,
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.gem_init_object = exynos_drm_gem_init_object,
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.gem_free_object = exynos_drm_gem_free_object,
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.gem_vm_ops = &exynos_drm_gem_vm_ops,
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.dumb_create = exynos_drm_gem_dumb_create,
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.dumb_map_offset = exynos_drm_gem_dumb_map_offset,
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.dumb_destroy = exynos_drm_gem_dumb_destroy,
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.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
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.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
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.gem_prime_export = exynos_dmabuf_prime_export,
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.gem_prime_import = exynos_dmabuf_prime_import,
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.ioctls = exynos_ioctls,
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.fops = &exynos_drm_driver_fops,
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.name = DRIVER_NAME,
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.desc = DRIVER_DESC,
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.date = DRIVER_DATE,
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.major = DRIVER_MAJOR,
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.minor = DRIVER_MINOR,
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};
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static int exynos_drm_platform_probe(struct platform_device *pdev)
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{
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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
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exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls);
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return drm_platform_init(&exynos_drm_driver, pdev);
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}
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static int exynos_drm_platform_remove(struct platform_device *pdev)
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{
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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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drm_platform_exit(&exynos_drm_driver, pdev);
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return 0;
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}
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static struct platform_driver exynos_drm_platform_driver = {
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.probe = exynos_drm_platform_probe,
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.remove = __devexit_p(exynos_drm_platform_remove),
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.driver = {
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.owner = THIS_MODULE,
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.name = "exynos-drm",
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},
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};
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static int __init exynos_drm_init(void)
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{
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int ret;
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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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#ifdef CONFIG_DRM_EXYNOS_FIMD
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ret = platform_driver_register(&fimd_driver);
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if (ret < 0)
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goto out_fimd;
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#endif
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#ifdef CONFIG_DRM_EXYNOS_HDMI
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ret = platform_driver_register(&hdmi_driver);
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if (ret < 0)
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goto out_hdmi;
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ret = platform_driver_register(&mixer_driver);
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if (ret < 0)
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goto out_mixer;
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ret = platform_driver_register(&exynos_drm_common_hdmi_driver);
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if (ret < 0)
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goto out_common_hdmi;
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ret = exynos_platform_device_hdmi_register();
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if (ret < 0)
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goto out_common_hdmi_dev;
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#endif
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#ifdef CONFIG_DRM_EXYNOS_VIDI
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ret = platform_driver_register(&vidi_driver);
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if (ret < 0)
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goto out_vidi;
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#endif
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#ifdef CONFIG_DRM_EXYNOS_G2D
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ret = platform_driver_register(&g2d_driver);
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if (ret < 0)
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goto out_g2d;
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#endif
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ret = platform_driver_register(&exynos_drm_platform_driver);
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if (ret < 0)
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goto out_drm;
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exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
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NULL, 0);
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if (IS_ERR_OR_NULL(exynos_drm_pdev)) {
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ret = PTR_ERR(exynos_drm_pdev);
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goto out;
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}
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return 0;
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out:
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platform_driver_unregister(&exynos_drm_platform_driver);
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out_drm:
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#ifdef CONFIG_DRM_EXYNOS_G2D
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platform_driver_unregister(&g2d_driver);
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out_g2d:
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#endif
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#ifdef CONFIG_DRM_EXYNOS_VIDI
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platform_driver_unregister(&vidi_driver);
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out_vidi:
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#endif
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#ifdef CONFIG_DRM_EXYNOS_HDMI
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exynos_platform_device_hdmi_unregister();
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out_common_hdmi_dev:
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platform_driver_unregister(&exynos_drm_common_hdmi_driver);
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out_common_hdmi:
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platform_driver_unregister(&mixer_driver);
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out_mixer:
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platform_driver_unregister(&hdmi_driver);
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out_hdmi:
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#endif
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#ifdef CONFIG_DRM_EXYNOS_FIMD
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platform_driver_unregister(&fimd_driver);
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out_fimd:
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#endif
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return ret;
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}
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static void __exit exynos_drm_exit(void)
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{
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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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platform_device_unregister(exynos_drm_pdev);
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platform_driver_unregister(&exynos_drm_platform_driver);
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#ifdef CONFIG_DRM_EXYNOS_G2D
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platform_driver_unregister(&g2d_driver);
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#endif
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#ifdef CONFIG_DRM_EXYNOS_HDMI
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exynos_platform_device_hdmi_unregister();
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platform_driver_unregister(&exynos_drm_common_hdmi_driver);
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platform_driver_unregister(&mixer_driver);
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platform_driver_unregister(&hdmi_driver);
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#endif
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#ifdef CONFIG_DRM_EXYNOS_VIDI
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platform_driver_unregister(&vidi_driver);
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#endif
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#ifdef CONFIG_DRM_EXYNOS_FIMD
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platform_driver_unregister(&fimd_driver);
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#endif
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}
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module_init(exynos_drm_init);
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module_exit(exynos_drm_exit);
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MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
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MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
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MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
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MODULE_DESCRIPTION("Samsung SoC DRM Driver");
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MODULE_LICENSE("GPL");
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