/*
- * Copyright (C) ROCKCHIP, Inc.
- * Author:yzq<yzq@rock-chips.com>
- *
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Author:Mark Yao <mark.yao@rock-chips.com>
+ *
* based on exynos_drm_drv.c
*
* This software is licensed under the terms of the GNU General Public
* GNU General Public License for more details.
*/
+#include <linux/dma-iommu.h>
+
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
-
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_sync_helper.h>
#include <drm/rockchip_drm.h>
+#include <linux/dma-mapping.h>
+#include <linux/pm_runtime.h>
+#include <linux/module.h>
+#include <linux/of_graph.h>
+#include <linux/component.h>
+#include <linux/fence.h>
#include "rockchip_drm_drv.h"
-#include "rockchip_drm_crtc.h"
-#include "rockchip_drm_encoder.h"
-#include "rockchip_drm_fbdev.h"
#include "rockchip_drm_fb.h"
+#include "rockchip_drm_fbdev.h"
#include "rockchip_drm_gem.h"
-#include "rockchip_drm_plane.h"
-#include "rockchip_drm_dmabuf.h"
-#include "rockchip_drm_iommu.h"
+#include "rockchip_drm_rga.h"
#define DRIVER_NAME "rockchip"
-#define DRIVER_DESC "rockchip Soc DRM"
-#define DRIVER_DATE "20140318"
+#define DRIVER_DESC "RockChip Soc DRM"
+#define DRIVER_DATE "20140818"
#define DRIVER_MAJOR 1
#define DRIVER_MINOR 0
-#define VBLANK_OFF_DELAY 50000
-
-/* platform device pointer for eynos drm device. */
-static struct platform_device *rockchip_drm_pdev;
+static LIST_HEAD(rockchip_drm_subdrv_list);
+static DEFINE_MUTEX(subdrv_list_mutex);
-static int rockchip_drm_load(struct drm_device *dev, unsigned long flags)
+/*
+ * Attach a (component) device to the shared drm dma mapping from master drm
+ * device. This is used by the VOPs to map GEM buffers to a common DMA
+ * mapping.
+ */
+int rockchip_drm_dma_attach_device(struct drm_device *drm_dev,
+ struct device *dev)
{
- struct rockchip_drm_private *private;
+ struct rockchip_drm_private *private = drm_dev->dev_private;
+ struct iommu_domain *domain = private->domain;
int ret;
- int nr;
- DRM_DEBUG_DRIVER("%s\n", __FILE__);
+ ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
+ if (ret)
+ return ret;
- private = kzalloc(sizeof(struct rockchip_drm_private), GFP_KERNEL);
- if (!private) {
- DRM_ERROR("failed to allocate private\n");
- return -ENOMEM;
+ dma_set_max_seg_size(dev, DMA_BIT_MASK(32));
+ ret = iommu_attach_device(domain, dev);
+ if (ret) {
+ dev_err(dev, "Failed to attach iommu device\n");
+ return ret;
}
- INIT_LIST_HEAD(&private->pageflip_event_list);
- dev->dev_private = (void *)private;
-
- /*
- * create mapping to manage iommu table and set a pointer to iommu
- * mapping structure to iommu_mapping of private data.
- * also this iommu_mapping can be used to check if iommu is supported
- * or not.
- */
- ret = drm_create_iommu_mapping(dev);
- if (ret < 0) {
- DRM_ERROR("failed to create iommu mapping.\n");
- goto err_crtc;
+ if (!common_iommu_setup_dma_ops(dev, 0x10000000, SZ_2G, domain->ops)) {
+ dev_err(dev, "Failed to set dma_ops\n");
+ iommu_detach_device(domain, dev);
+ ret = -ENODEV;
}
- drm_mode_config_init(dev);
+ return ret;
+}
- /* init kms poll for handling hpd */
- drm_kms_helper_poll_init(dev);
+void rockchip_drm_dma_detach_device(struct drm_device *drm_dev,
+ struct device *dev)
+{
+ struct rockchip_drm_private *private = drm_dev->dev_private;
+ struct iommu_domain *domain = private->domain;
- rockchip_drm_mode_config_init(dev);
+ iommu_detach_device(domain, dev);
+}
- /*
- * ROCKCHIP4 is enough to have two CRTCs and each crtc would be used
- * without dependency of hardware.
- */
- for (nr = 0; nr < MAX_CRTC; nr++) {
- ret = rockchip_drm_crtc_create(dev, nr);
- if (ret)
- goto err_release_iommu_mapping;
- }
+int rockchip_register_crtc_funcs(struct drm_crtc *crtc,
+ const struct rockchip_crtc_funcs *crtc_funcs)
+{
+ int pipe = drm_crtc_index(crtc);
+ struct rockchip_drm_private *priv = crtc->dev->dev_private;
+
+ if (pipe > ROCKCHIP_MAX_CRTC)
+ return -EINVAL;
+
+ priv->crtc_funcs[pipe] = crtc_funcs;
+
+ return 0;
+}
- for (nr = 0; nr < MAX_PLANE; nr++) {
- struct drm_plane *plane;
- unsigned int possible_crtcs = (1 << MAX_CRTC) - 1;
+void rockchip_unregister_crtc_funcs(struct drm_crtc *crtc)
+{
+ int pipe = drm_crtc_index(crtc);
+ struct rockchip_drm_private *priv = crtc->dev->dev_private;
+
+ if (pipe > ROCKCHIP_MAX_CRTC)
+ return;
- plane = rockchip_plane_init(dev, possible_crtcs, false);
- if (!plane)
- goto err_release_iommu_mapping;
+ priv->crtc_funcs[pipe] = NULL;
+}
+
+static struct drm_crtc *rockchip_crtc_from_pipe(struct drm_device *drm,
+ int pipe)
+{
+ struct drm_crtc *crtc;
+ int i = 0;
+
+ list_for_each_entry(crtc, &drm->mode_config.crtc_list, head)
+ if (i++ == pipe)
+ return crtc;
+
+ return NULL;
+}
+
+static int rockchip_drm_crtc_enable_vblank(struct drm_device *dev,
+ unsigned int pipe)
+{
+ struct rockchip_drm_private *priv = dev->dev_private;
+ struct drm_crtc *crtc = rockchip_crtc_from_pipe(dev, pipe);
+
+ if (crtc && priv->crtc_funcs[pipe] &&
+ priv->crtc_funcs[pipe]->enable_vblank)
+ return priv->crtc_funcs[pipe]->enable_vblank(crtc);
+
+ return 0;
+}
+
+static void rockchip_drm_crtc_disable_vblank(struct drm_device *dev,
+ unsigned int pipe)
+{
+ struct rockchip_drm_private *priv = dev->dev_private;
+ struct drm_crtc *crtc = rockchip_crtc_from_pipe(dev, pipe);
+
+ if (crtc && priv->crtc_funcs[pipe] &&
+ priv->crtc_funcs[pipe]->enable_vblank)
+ priv->crtc_funcs[pipe]->disable_vblank(crtc);
+}
+
+static int rockchip_drm_load(struct drm_device *drm_dev, unsigned long flags)
+{
+ struct rockchip_drm_private *private;
+ struct device *dev = drm_dev->dev;
+ struct drm_connector *connector;
+ struct iommu_group *group;
+ int ret;
+
+ private = devm_kzalloc(drm_dev->dev, sizeof(*private), GFP_KERNEL);
+ if (!private)
+ return -ENOMEM;
+
+ mutex_init(&private->commit.lock);
+ INIT_WORK(&private->commit.work, rockchip_drm_atomic_work);
+
+ drm_dev->dev_private = private;
+
+#ifdef CONFIG_DRM_DMA_SYNC
+ private->cpu_fence_context = fence_context_alloc(1);
+ atomic_set(&private->cpu_fence_seqno, 0);
+#endif
+
+ drm_mode_config_init(drm_dev);
+
+ rockchip_drm_mode_config_init(drm_dev);
+
+ dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms),
+ GFP_KERNEL);
+ if (!dev->dma_parms) {
+ ret = -ENOMEM;
+ goto err_config_cleanup;
}
- ret = drm_vblank_init(dev, MAX_CRTC);
+ private->domain = iommu_domain_alloc(&platform_bus_type);
+ if (!private->domain)
+ return -ENOMEM;
+
+ ret = iommu_get_dma_cookie(private->domain);
if (ret)
- goto err_release_iommu_mapping;
+ goto err_free_domain;
+
+ group = iommu_group_get(dev);
+ if (!group) {
+ group = iommu_group_alloc();
+ if (IS_ERR(group)) {
+ dev_err(dev, "Failed to allocate IOMMU group\n");
+ goto err_put_cookie;
+ }
+ ret = iommu_group_add_device(group, dev);
+ iommu_group_put(group);
+ if (ret) {
+ dev_err(dev, "failed to add device to IOMMU group\n");
+ goto err_put_cookie;
+ }
+ }
/*
- * probe sub drivers such as display controller and hdmi driver,
- * that were registered at probe() of platform driver
- * to the sub driver and create encoder and connector for them.
+ * Attach virtual iommu device, sub iommu device can share the same
+ * mapping with it.
*/
- ret = rockchip_drm_device_register(dev);
+ ret = rockchip_drm_dma_attach_device(drm_dev, dev);
if (ret)
- goto err_vblank;
+ goto err_group_remove_device;
- /* setup possible_clones. */
- rockchip_drm_encoder_setup(dev);
+ /* Try to bind all sub drivers. */
+ ret = component_bind_all(dev, drm_dev);
+ if (ret)
+ goto err_detach_device;
/*
- * create and configure fb helper and also rockchip specific
- * fbdev object.
+ * All components are now added, we can publish the connector sysfs
+ * entries to userspace. This will generate hotplug events and so
+ * userspace will expect to be able to access DRM at this point.
*/
- ret = rockchip_drm_fbdev_init(dev);
- if (ret) {
- DRM_ERROR("failed to initialize drm fbdev\n");
- goto err_drm_device;
+ list_for_each_entry(connector, &drm_dev->mode_config.connector_list,
+ head) {
+ ret = drm_connector_register(connector);
+ if (ret) {
+ dev_err(drm_dev->dev,
+ "[CONNECTOR:%d:%s] drm_connector_register failed: %d\n",
+ connector->base.id,
+ connector->name, ret);
+ goto err_unbind;
+ }
}
- drm_vblank_offdelay = VBLANK_OFF_DELAY;
+ /* init kms poll for handling hpd */
+ drm_kms_helper_poll_init(drm_dev);
- return 0;
+ /*
+ * enable drm irq mode.
+ * - with irq_enabled = true, we can use the vblank feature.
+ */
+ drm_dev->irq_enabled = true;
+
+ ret = drm_vblank_init(drm_dev, ROCKCHIP_MAX_CRTC);
+ if (ret)
+ goto err_kms_helper_poll_fini;
-err_drm_device:
- rockchip_drm_device_unregister(dev);
-err_vblank:
- drm_vblank_cleanup(dev);
-err_release_iommu_mapping:
- drm_release_iommu_mapping(dev);
-err_crtc:
- drm_mode_config_cleanup(dev);
- kfree(private);
+ /*
+ * with vblank_disable_allowed = true, vblank interrupt will be disabled
+ * by drm timer once a current process gives up ownership of
+ * vblank event.(after drm_vblank_put function is called)
+ */
+ drm_dev->vblank_disable_allowed = true;
+
+ drm_mode_config_reset(drm_dev);
+
+ ret = rockchip_drm_fbdev_init(drm_dev);
+ if (ret)
+ goto err_vblank_cleanup;
+ return 0;
+err_vblank_cleanup:
+ drm_vblank_cleanup(drm_dev);
+err_kms_helper_poll_fini:
+ drm_kms_helper_poll_fini(drm_dev);
+err_unbind:
+ component_unbind_all(dev, drm_dev);
+err_detach_device:
+ rockchip_drm_dma_detach_device(drm_dev, dev);
+err_group_remove_device:
+ iommu_group_remove_device(dev);
+err_put_cookie:
+ iommu_put_dma_cookie(private->domain);
+err_free_domain:
+ iommu_domain_free(private->domain);
+err_config_cleanup:
+ drm_mode_config_cleanup(drm_dev);
+ drm_dev->dev_private = NULL;
return ret;
}
-static int rockchip_drm_unload(struct drm_device *dev)
+static int rockchip_drm_unload(struct drm_device *drm_dev)
{
- DRM_DEBUG_DRIVER("%s\n", __FILE__);
+ struct device *dev = drm_dev->dev;
+ struct rockchip_drm_private *private = drm_dev->dev_private;
+
+ rockchip_drm_fbdev_fini(drm_dev);
+ drm_vblank_cleanup(drm_dev);
+ drm_kms_helper_poll_fini(drm_dev);
+ component_unbind_all(dev, drm_dev);
+ rockchip_drm_dma_detach_device(drm_dev, dev);
+ iommu_group_remove_device(dev);
+ iommu_put_dma_cookie(private->domain);
+ iommu_domain_free(private->domain);
+ drm_mode_config_cleanup(drm_dev);
+ drm_dev->dev_private = NULL;
- rockchip_drm_fbdev_fini(dev);
- rockchip_drm_device_unregister(dev);
- drm_vblank_cleanup(dev);
- drm_kms_helper_poll_fini(dev);
- drm_mode_config_cleanup(dev);
+ return 0;
+}
- drm_release_iommu_mapping(dev);
- kfree(dev->dev_private);
+static void rockchip_drm_crtc_cancel_pending_vblank(struct drm_crtc *crtc,
+ struct drm_file *file_priv)
+{
+ struct rockchip_drm_private *priv = crtc->dev->dev_private;
+ int pipe = drm_crtc_index(crtc);
- dev->dev_private = NULL;
+ if (pipe < ROCKCHIP_MAX_CRTC &&
+ priv->crtc_funcs[pipe] &&
+ priv->crtc_funcs[pipe]->cancel_pending_vblank)
+ priv->crtc_funcs[pipe]->cancel_pending_vblank(crtc, file_priv);
+}
+
+int rockchip_drm_register_subdrv(struct drm_rockchip_subdrv *subdrv)
+{
+ if (!subdrv)
+ return -EINVAL;
+
+ mutex_lock(&subdrv_list_mutex);
+ list_add_tail(&subdrv->list, &rockchip_drm_subdrv_list);
+ mutex_unlock(&subdrv_list_mutex);
return 0;
}
+EXPORT_SYMBOL_GPL(rockchip_drm_register_subdrv);
-static int rockchip_drm_open(struct drm_device *dev, struct drm_file *file)
+int rockchip_drm_unregister_subdrv(struct drm_rockchip_subdrv *subdrv)
{
- struct drm_rockchip_file_private *file_priv;
+ if (!subdrv)
+ return -EINVAL;
+
+ mutex_lock(&subdrv_list_mutex);
+ list_del(&subdrv->list);
+ mutex_unlock(&subdrv_list_mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(rockchip_drm_unregister_subdrv);
- DRM_DEBUG_DRIVER("%s\n", __FILE__);
+static int rockchip_drm_open(struct drm_device *dev, struct drm_file *file)
+{
+ struct rockchip_drm_file_private *file_priv;
+ struct drm_rockchip_subdrv *subdrv;
+ int ret = 0;
file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
if (!file_priv)
return -ENOMEM;
+ INIT_LIST_HEAD(&file_priv->gem_cpu_acquire_list);
file->driver_priv = file_priv;
- return rockchip_drm_subdrv_open(dev, file);
+ mutex_lock(&subdrv_list_mutex);
+ list_for_each_entry(subdrv, &rockchip_drm_subdrv_list, list) {
+ ret = subdrv->open(dev, subdrv->dev, file);
+ if (ret) {
+ mutex_unlock(&subdrv_list_mutex);
+ goto err_free_file_priv;
+ }
+ }
+ mutex_unlock(&subdrv_list_mutex);
+
+ return 0;
+
+err_free_file_priv:
+ kfree(file_priv);
+ file_priv = NULL;
+
+ return ret;
}
static void rockchip_drm_preclose(struct drm_device *dev,
- struct drm_file *file)
+ struct drm_file *file_priv)
{
- struct rockchip_drm_private *private = dev->dev_private;
- struct drm_pending_vblank_event *e, *t;
- unsigned long flags;
-
- DRM_DEBUG_DRIVER("%s\n", __FILE__);
-
- /* release events of current file */
- spin_lock_irqsave(&dev->event_lock, flags);
- list_for_each_entry_safe(e, t, &private->pageflip_event_list,
- base.link) {
- if (e->base.file_priv == file) {
- list_del(&e->base.link);
- e->base.destroy(&e->base);
- }
+ struct rockchip_drm_file_private *file_private = file_priv->driver_priv;
+ struct rockchip_gem_object_node *cur, *d;
+ struct drm_rockchip_subdrv *subdrv;
+ struct drm_crtc *crtc;
+
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
+ rockchip_drm_crtc_cancel_pending_vblank(crtc, file_priv);
+
+ mutex_lock(&dev->struct_mutex);
+ list_for_each_entry_safe(cur, d,
+ &file_private->gem_cpu_acquire_list, list) {
+#ifdef CONFIG_DRM_DMA_SYNC
+ BUG_ON(!cur->rockchip_gem_obj->acquire_fence);
+ drm_fence_signal_and_put(&cur->rockchip_gem_obj->acquire_fence);
+#endif
+ drm_gem_object_unreference(&cur->rockchip_gem_obj->base);
+ kfree(cur);
}
- spin_unlock_irqrestore(&dev->event_lock, flags);
+ /* since we are deleting the whole list, just initialize the header
+ * instead of calling list_del for every element
+ */
+ INIT_LIST_HEAD(&file_private->gem_cpu_acquire_list);
+ mutex_unlock(&dev->struct_mutex);
- rockchip_drm_subdrv_close(dev, file);
+ mutex_lock(&subdrv_list_mutex);
+ list_for_each_entry(subdrv, &rockchip_drm_subdrv_list, list)
+ subdrv->close(dev, subdrv->dev, file_priv);
+ mutex_unlock(&subdrv_list_mutex);
}
static void rockchip_drm_postclose(struct drm_device *dev, struct drm_file *file)
{
- DRM_DEBUG_DRIVER("%s\n", __FILE__);
-
- if (!file->driver_priv)
- return;
-
kfree(file->driver_priv);
file->driver_priv = NULL;
}
-static void rockchip_drm_lastclose(struct drm_device *dev)
+void rockchip_drm_lastclose(struct drm_device *dev)
{
- DRM_DEBUG_DRIVER("%s\n", __FILE__);
+ struct rockchip_drm_private *priv = dev->dev_private;
- rockchip_drm_fbdev_restore_mode(dev);
+ drm_fb_helper_restore_fbdev_mode_unlocked(&priv->fbdev_helper);
}
-static const struct vm_operations_struct rockchip_drm_gem_vm_ops = {
- .fault = rockchip_drm_gem_fault,
- .open = drm_gem_vm_open,
- .close = drm_gem_vm_close,
-};
-
-static struct drm_ioctl_desc rockchip_ioctls[] = {
- DRM_IOCTL_DEF_DRV(ROCKCHIP_GEM_CREATE, rockchip_drm_gem_create_ioctl,
- DRM_UNLOCKED | DRM_AUTH),
+static const struct drm_ioctl_desc rockchip_ioctls[] = {
+ DRM_IOCTL_DEF_DRV(ROCKCHIP_GEM_CREATE, rockchip_gem_create_ioctl,
+ DRM_UNLOCKED | DRM_AUTH | DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(ROCKCHIP_GEM_MAP_OFFSET,
- rockchip_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
- DRM_AUTH),
- DRM_IOCTL_DEF_DRV(ROCKCHIP_GEM_MMAP,
- rockchip_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
- DRM_IOCTL_DEF_DRV(ROCKCHIP_GEM_GET,
- rockchip_drm_gem_get_ioctl, DRM_UNLOCKED),
+ rockchip_gem_map_offset_ioctl,
+ DRM_UNLOCKED | DRM_AUTH | DRM_RENDER_ALLOW),
+ DRM_IOCTL_DEF_DRV(ROCKCHIP_GEM_CPU_ACQUIRE,
+ rockchip_gem_cpu_acquire_ioctl,
+ DRM_UNLOCKED | DRM_AUTH | DRM_RENDER_ALLOW),
+ DRM_IOCTL_DEF_DRV(ROCKCHIP_GEM_CPU_RELEASE,
+ rockchip_gem_cpu_release_ioctl,
+ DRM_UNLOCKED | DRM_AUTH | DRM_RENDER_ALLOW),
+ DRM_IOCTL_DEF_DRV(ROCKCHIP_RGA_GET_VER, rockchip_rga_get_ver_ioctl,
+ DRM_AUTH | DRM_RENDER_ALLOW),
+ DRM_IOCTL_DEF_DRV(ROCKCHIP_RGA_SET_CMDLIST,
+ rockchip_rga_set_cmdlist_ioctl,
+ DRM_AUTH | DRM_RENDER_ALLOW),
+ DRM_IOCTL_DEF_DRV(ROCKCHIP_RGA_EXEC, rockchip_rga_exec_ioctl,
+ DRM_AUTH | DRM_RENDER_ALLOW),
};
static const struct file_operations rockchip_drm_driver_fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .mmap = rockchip_drm_gem_mmap,
- .poll = drm_poll,
- .read = drm_read,
- .unlocked_ioctl = drm_ioctl,
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .mmap = rockchip_gem_mmap,
+ .poll = drm_poll,
+ .read = drm_read,
+ .unlocked_ioctl = drm_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
#endif
- .release = drm_release,
+ .release = drm_release,
+};
+
+const struct vm_operations_struct rockchip_drm_vm_ops = {
+ .open = drm_gem_vm_open,
+ .close = drm_gem_vm_close,
};
static struct drm_driver rockchip_drm_driver = {
- .driver_features = DRIVER_HAVE_IRQ | DRIVER_MODESET |
- DRIVER_GEM | DRIVER_PRIME,
+ .driver_features = DRIVER_MODESET | DRIVER_GEM |
+ DRIVER_PRIME | DRIVER_ATOMIC |
+ DRIVER_RENDER,
.load = rockchip_drm_load,
.unload = rockchip_drm_unload,
- .open = rockchip_drm_open,
.preclose = rockchip_drm_preclose,
.lastclose = rockchip_drm_lastclose,
+ .get_vblank_counter = drm_vblank_no_hw_counter,
+ .open = rockchip_drm_open,
.postclose = rockchip_drm_postclose,
- .get_vblank_counter = drm_vblank_count,
.enable_vblank = rockchip_drm_crtc_enable_vblank,
.disable_vblank = rockchip_drm_crtc_disable_vblank,
-// .get_vblank_timestamp = rockchip_get_crtc_vblank_timestamp,
- .gem_init_object = rockchip_drm_gem_init_object,
- .gem_free_object = rockchip_drm_gem_free_object,
- .gem_vm_ops = &rockchip_drm_gem_vm_ops,
- .dumb_create = rockchip_drm_gem_dumb_create,
- .dumb_map_offset = rockchip_drm_gem_dumb_map_offset,
- .dumb_destroy = rockchip_drm_gem_dumb_destroy,
+ .gem_vm_ops = &rockchip_drm_vm_ops,
+ .gem_free_object = rockchip_gem_free_object,
+ .dumb_create = rockchip_gem_dumb_create,
+ .dumb_map_offset = rockchip_gem_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_prime_export = rockchip_dmabuf_prime_export,
- .gem_prime_import = rockchip_dmabuf_prime_import,
+ .gem_prime_import = drm_gem_prime_import,
+ .gem_prime_import_sg_table = rockchip_gem_prime_import_sg_table,
+ .gem_prime_export = drm_gem_prime_export,
+ .gem_prime_get_sg_table = rockchip_gem_prime_get_sg_table,
+ .gem_prime_vmap = rockchip_gem_prime_vmap,
+ .gem_prime_vunmap = rockchip_gem_prime_vunmap,
+ .gem_prime_mmap = rockchip_gem_mmap_buf,
.ioctls = rockchip_ioctls,
+ .num_ioctls = ARRAY_SIZE(rockchip_ioctls),
.fops = &rockchip_drm_driver_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.minor = DRIVER_MINOR,
};
-static int rockchip_drm_platform_probe(struct platform_device *pdev)
+#ifdef CONFIG_PM_SLEEP
+static int rockchip_drm_sys_suspend(struct device *dev)
{
- DRM_DEBUG_DRIVER("%s\n", __FILE__);
+ struct drm_device *drm = dev_get_drvdata(dev);
+ struct drm_connector *connector;
+
+ if (!drm)
+ return 0;
- pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
- rockchip_drm_driver.num_ioctls = DRM_ARRAY_SIZE(rockchip_ioctls);
+ drm_modeset_lock_all(drm);
+ list_for_each_entry(connector, &drm->mode_config.connector_list, head) {
+ int old_dpms = connector->dpms;
- return drm_platform_init(&rockchip_drm_driver, pdev);
+ if (connector->funcs->dpms)
+ connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF);
+
+ /* Set the old mode back to the connector for resume */
+ connector->dpms = old_dpms;
+ }
+ drm_modeset_unlock_all(drm);
+
+ return 0;
}
-static int rockchip_drm_platform_remove(struct platform_device *pdev)
+static int rockchip_drm_sys_resume(struct device *dev)
{
- DRM_DEBUG_DRIVER("%s\n", __FILE__);
+ struct drm_device *drm = dev_get_drvdata(dev);
+ struct drm_connector *connector;
+ enum drm_connector_status status;
+ bool changed = false;
+
+ if (!drm)
+ return 0;
+
+ drm_modeset_lock_all(drm);
+ list_for_each_entry(connector, &drm->mode_config.connector_list, head) {
+ int desired_mode = connector->dpms;
+
+ /*
+ * at suspend time, we save dpms to connector->dpms,
+ * restore the old_dpms, and at current time, the connector
+ * dpms status must be DRM_MODE_DPMS_OFF.
+ */
+ connector->dpms = DRM_MODE_DPMS_OFF;
+
+ /*
+ * If the connector has been disconnected during suspend,
+ * disconnect it from the encoder and leave it off. We'll notify
+ * userspace at the end.
+ */
+ if (desired_mode == DRM_MODE_DPMS_ON) {
+ status = connector->funcs->detect(connector, true);
+ if (status == connector_status_disconnected) {
+ connector->encoder = NULL;
+ connector->status = status;
+ changed = true;
+ continue;
+ }
+ }
+ if (connector->funcs->dpms)
+ connector->funcs->dpms(connector, desired_mode);
+ }
+ drm_modeset_unlock_all(drm);
+
+ drm_helper_resume_force_mode(drm);
- drm_platform_exit(&rockchip_drm_driver, pdev);
+ if (changed)
+ drm_kms_helper_hotplug_event(drm);
return 0;
}
+#endif
-static struct platform_driver rockchip_drm_platform_driver = {
- .probe = rockchip_drm_platform_probe,
- .remove = rockchip_drm_platform_remove,
- .driver = {
- .owner = THIS_MODULE,
- .name = "rockchip-drm",
- },
+static const struct dev_pm_ops rockchip_drm_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(rockchip_drm_sys_suspend,
+ rockchip_drm_sys_resume)
};
-static int __init rockchip_drm_init(void)
+static int compare_of(struct device *dev, void *data)
{
- int ret;
+ struct device_node *np = data;
- DRM_DEBUG_DRIVER("%s\n", __FILE__);
+ return dev->of_node == np;
+}
+static void rockchip_add_endpoints(struct device *dev,
+ struct component_match **match,
+ struct device_node *port)
+{
+ struct device_node *ep, *remote;
+
+ for_each_child_of_node(port, ep) {
+ remote = of_graph_get_remote_port_parent(ep);
+ if (!remote || !of_device_is_available(remote)) {
+ of_node_put(remote);
+ continue;
+ } else if (!of_device_is_available(remote->parent)) {
+ dev_warn(dev, "parent device of %s is not available\n",
+ remote->full_name);
+ of_node_put(remote);
+ continue;
+ }
-#ifdef CONFIG_DRM_ROCKCHIP_PRIMARY
- ret = platform_driver_register(&primary_platform_driver);
- if (ret < 0)
- goto out_primary;
- platform_device_register_simple("primary-display", -1,
- NULL, 0);
-#endif
-#ifdef CONFIG_DRM_ROCKCHIP_HDMI
- ret = platform_driver_register(&extend_platform_driver);
- if (ret < 0)
- goto out_extend;
- platform_device_register_simple("extend-display", -1,
- NULL, 0);
-#endif
+ component_match_add(dev, match, compare_of, remote);
+ of_node_put(remote);
+ }
+}
- ret = platform_driver_register(&rockchip_drm_platform_driver);
- if (ret < 0)
- goto out_drm;
+static int rockchip_drm_bind(struct device *dev)
+{
+ struct drm_device *drm;
+ int ret;
+ drm = drm_dev_alloc(&rockchip_drm_driver, dev);
+ if (!drm)
+ return -ENOMEM;
- rockchip_drm_pdev = platform_device_register_simple("rockchip-drm", -1,
- NULL, 0);
- if (IS_ERR(rockchip_drm_pdev)) {
- ret = PTR_ERR(rockchip_drm_pdev);
- goto out;
- }
+ ret = drm_dev_set_unique(drm, "%s", dev_name(dev));
+ if (ret)
+ goto err_free;
+
+ ret = drm_dev_register(drm, 0);
+ if (ret)
+ goto err_free;
+
+ dev_set_drvdata(dev, drm);
return 0;
-out:
- platform_driver_unregister(&rockchip_drm_platform_driver);
-out_drm:
-#ifdef CONFIG_DRM_ROCKCHIP_PRIMARY
- platform_driver_unregister(&primary_platform_driver);
-out_primary:
-#endif
-#ifdef CONFIG_DRM_ROCKCHIP_HDMI
- platform_driver_unregister(&extend_platform_driver);
-out_extend:
-#endif
+err_free:
+ drm_dev_unref(drm);
return ret;
}
-static void __exit rockchip_drm_exit(void)
+static void rockchip_drm_unbind(struct device *dev)
{
- DRM_DEBUG_DRIVER("%s\n", __FILE__);
+ struct drm_device *drm = dev_get_drvdata(dev);
- platform_device_unregister(rockchip_drm_pdev);
+ drm_dev_unregister(drm);
+ drm_dev_unref(drm);
+ dev_set_drvdata(dev, NULL);
+}
+
+static const struct component_master_ops rockchip_drm_ops = {
+ .bind = rockchip_drm_bind,
+ .unbind = rockchip_drm_unbind,
+};
+
+static int rockchip_drm_platform_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct component_match *match = NULL;
+ struct device_node *np = dev->of_node;
+ struct device_node *port;
+ int i;
+
+ if (!np)
+ return -ENODEV;
+ /*
+ * Bind the crtc ports first, so that
+ * drm_of_find_possible_crtcs called from encoder .bind callbacks
+ * works as expected.
+ */
+ for (i = 0;; i++) {
+ port = of_parse_phandle(np, "ports", i);
+ if (!port)
+ break;
+
+ if (!of_device_is_available(port->parent)) {
+ of_node_put(port);
+ continue;
+ }
+
+ component_match_add(dev, &match, compare_of, port->parent);
+ of_node_put(port);
+ }
- platform_driver_unregister(&rockchip_drm_platform_driver);
+ if (i == 0) {
+ dev_err(dev, "missing 'ports' property\n");
+ return -ENODEV;
+ }
+
+ if (!match) {
+ dev_err(dev, "No available vop found for display-subsystem.\n");
+ return -ENODEV;
+ }
+ /*
+ * For each bound crtc, bind the encoders attached to its
+ * remote endpoint.
+ */
+ for (i = 0;; i++) {
+ port = of_parse_phandle(np, "ports", i);
+ if (!port)
+ break;
+
+ if (!of_device_is_available(port->parent)) {
+ of_node_put(port);
+ continue;
+ }
+
+ rockchip_add_endpoints(dev, &match, port);
+ of_node_put(port);
+ }
+
+ return component_master_add_with_match(dev, &rockchip_drm_ops, match);
+}
+
+static int rockchip_drm_platform_remove(struct platform_device *pdev)
+{
+ component_master_del(&pdev->dev, &rockchip_drm_ops);
+
+ return 0;
}
-module_init(rockchip_drm_init);
-module_exit(rockchip_drm_exit);
+static const struct of_device_id rockchip_drm_dt_ids[] = {
+ { .compatible = "rockchip,display-subsystem", },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, rockchip_drm_dt_ids);
+
+static struct platform_driver rockchip_drm_platform_driver = {
+ .probe = rockchip_drm_platform_probe,
+ .remove = rockchip_drm_platform_remove,
+ .driver = {
+ .name = "rockchip-drm",
+ .of_match_table = rockchip_drm_dt_ids,
+ .pm = &rockchip_drm_pm_ops,
+ },
+};
+
+module_platform_driver(rockchip_drm_platform_driver);
+
+MODULE_AUTHOR("Mark Yao <mark.yao@rock-chips.com>");
+MODULE_DESCRIPTION("ROCKCHIP DRM Driver");
+MODULE_LICENSE("GPL v2");
projects / firefly-linux-kernel-4.4.55.git / blobdiff