pci, usb and platform support all duplicate the same code. Provide
a common function for this.
Signed-off-by: Sascha Hauer <s.ha...@pengutronix.de>
---
drivers/gpu/drm/drm_stub.c | 56 ++++++++++++++++++++++++++++++++++++++++++++
include/drm/drmP.h | 2 +
2 files changed, 58 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index 6d7b083..c36b19c 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -320,6 +320,62 @@ int drm_fill_in_dev(struct drm_device *dev,
return retcode;
}
+int drm_register_device(struct drm_device *dev, struct drm_driver *driver,
+ unsigned long flags)
+{
+ int ret;
+
+ 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, flags);
+ 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;
+ }
+
+ 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:
+ mutex_unlock(&drm_global_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(drm_register_device);
/**
* Get a secondary minor number.
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 3c14c05..467a9a5 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1651,6 +1651,8 @@ extern int drm_fill_in_dev(struct drm_device *dev,
const struct pci_device_id *ent,
struct drm_driver *driver);
int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type);
+int drm_register_device(struct drm_device *dev, struct drm_driver *driver,
+ unsigned long flags);
/*@}*/
/* PCI section */
--
1.7.8.3
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