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path: root/drivers/gpu/drm/exynos/exynos_drm_core.c
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Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_core.c')
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_core.c140
1 files changed, 40 insertions, 100 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_core.c b/drivers/gpu/drm/exynos/exynos_drm_core.c
index d08a55896d50..411832e8e17a 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_core.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_core.c
@@ -32,7 +32,6 @@
#include "exynos_drm_connector.h"
#include "exynos_drm_fbdev.h"
-static DEFINE_MUTEX(exynos_drm_mutex);
static LIST_HEAD(exynos_drm_subdrv_list);
static struct drm_device *drm_dev;
@@ -60,6 +59,9 @@ static int exynos_drm_subdrv_probe(struct drm_device *dev,
return ret;
}
+ if (subdrv->is_local)
+ return 0;
+
/* create and initialize a encoder for this sub driver. */
encoder = exynos_drm_encoder_create(dev, &subdrv->manager,
(1 << MAX_CRTC) - 1);
@@ -116,13 +118,10 @@ int exynos_drm_device_register(struct drm_device *dev)
if (!dev)
return -EINVAL;
- if (drm_dev) {
- DRM_ERROR("Already drm device were registered\n");
- return -EBUSY;
- }
+ drm_dev = dev;
- mutex_lock(&exynos_drm_mutex);
list_for_each_entry_safe(subdrv, n, &exynos_drm_subdrv_list, list) {
+ subdrv->drm_dev = dev;
err = exynos_drm_subdrv_probe(dev, subdrv);
if (err) {
DRM_DEBUG("exynos drm subdrv probe failed.\n");
@@ -130,9 +129,6 @@ int exynos_drm_device_register(struct drm_device *dev)
}
}
- drm_dev = dev;
- mutex_unlock(&exynos_drm_mutex);
-
return 0;
}
EXPORT_SYMBOL_GPL(exynos_drm_device_register);
@@ -143,86 +139,28 @@ int exynos_drm_device_unregister(struct drm_device *dev)
DRM_DEBUG_DRIVER("%s\n", __FILE__);
- if (!dev || dev != drm_dev) {
+ if (!dev) {
WARN(1, "Unexpected drm device unregister!\n");
return -EINVAL;
}
- mutex_lock(&exynos_drm_mutex);
list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list)
exynos_drm_subdrv_remove(dev, subdrv);
drm_dev = NULL;
- mutex_unlock(&exynos_drm_mutex);
return 0;
}
EXPORT_SYMBOL_GPL(exynos_drm_device_unregister);
-static int exynos_drm_mode_group_reinit(struct drm_device *dev)
-{
- struct drm_mode_group *group = &dev->primary->mode_group;
- uint32_t *id_list = group->id_list;
- int ret;
-
- DRM_DEBUG_DRIVER("%s\n", __FILE__);
-
- ret = drm_mode_group_init_legacy_group(dev, group);
- if (ret < 0)
- return ret;
-
- kfree(id_list);
- return 0;
-}
-
int exynos_drm_subdrv_register(struct exynos_drm_subdrv *subdrv)
{
- int err;
-
DRM_DEBUG_DRIVER("%s\n", __FILE__);
if (!subdrv)
return -EINVAL;
- mutex_lock(&exynos_drm_mutex);
- if (drm_dev) {
- err = exynos_drm_subdrv_probe(drm_dev, subdrv);
- if (err) {
- DRM_ERROR("failed to probe exynos drm subdrv\n");
- mutex_unlock(&exynos_drm_mutex);
- return err;
- }
-
- /* setup possible_clones. */
- exynos_drm_encoder_setup(drm_dev);
-
- /*
- * if any specific driver such as fimd or hdmi driver called
- * exynos_drm_subdrv_register() later than drm_load(),
- * the fb helper should be re-initialized and re-configured.
- */
- err = exynos_drm_fbdev_reinit(drm_dev);
- if (err) {
- DRM_ERROR("failed to reinitialize exynos drm fbdev\n");
- exynos_drm_subdrv_remove(drm_dev, subdrv);
- mutex_unlock(&exynos_drm_mutex);
- return err;
- }
-
- err = exynos_drm_mode_group_reinit(drm_dev);
- if (err) {
- DRM_ERROR("failed to reinitialize mode group\n");
- exynos_drm_fbdev_fini(drm_dev);
- exynos_drm_subdrv_remove(drm_dev, subdrv);
- mutex_unlock(&exynos_drm_mutex);
- return err;
- }
- }
-
- subdrv->drm_dev = drm_dev;
-
list_add_tail(&subdrv->list, &exynos_drm_subdrv_list);
- mutex_unlock(&exynos_drm_mutex);
return 0;
}
@@ -230,46 +168,48 @@ EXPORT_SYMBOL_GPL(exynos_drm_subdrv_register);
int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *subdrv)
{
- int ret = -EFAULT;
-
DRM_DEBUG_DRIVER("%s\n", __FILE__);
- if (!subdrv) {
- DRM_DEBUG("Unexpected exynos drm subdrv unregister!\n");
- return ret;
- }
+ if (!subdrv)
+ return -EINVAL;
- mutex_lock(&exynos_drm_mutex);
- if (drm_dev) {
- exynos_drm_subdrv_remove(drm_dev, subdrv);
- list_del(&subdrv->list);
+ list_del(&subdrv->list);
- /*
- * fb helper should be updated once a sub driver is released
- * to re-configure crtc and connector and also to re-setup
- * drm framebuffer.
- */
- ret = exynos_drm_fbdev_reinit(drm_dev);
- if (ret < 0) {
- DRM_ERROR("failed fb helper reinit.\n");
- goto fail;
- }
+ return 0;
+}
+EXPORT_SYMBOL_GPL(exynos_drm_subdrv_unregister);
- ret = exynos_drm_mode_group_reinit(drm_dev);
- if (ret < 0) {
- DRM_ERROR("failed drm mode group reinit.\n");
- goto fail;
+int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file)
+{
+ struct exynos_drm_subdrv *subdrv;
+ int ret;
+
+ list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
+ if (subdrv->open) {
+ ret = subdrv->open(dev, subdrv->manager.dev, file);
+ if (ret)
+ goto err;
}
}
-fail:
- mutex_unlock(&exynos_drm_mutex);
+ return 0;
+
+err:
+ list_for_each_entry_reverse(subdrv, &subdrv->list, list) {
+ if (subdrv->close)
+ subdrv->close(dev, subdrv->manager.dev, file);
+ }
return ret;
}
-EXPORT_SYMBOL_GPL(exynos_drm_subdrv_unregister);
+EXPORT_SYMBOL_GPL(exynos_drm_subdrv_open);
+
+void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file)
+{
+ struct exynos_drm_subdrv *subdrv;
-MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
-MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
-MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
-MODULE_DESCRIPTION("Samsung SoC DRM Core Driver");
-MODULE_LICENSE("GPL");
+ list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
+ if (subdrv->close)
+ subdrv->close(dev, subdrv->manager.dev, file);
+ }
+}
+EXPORT_SYMBOL_GPL(exynos_drm_subdrv_close);