staging/vc04_services: Register a platform device for the camera driver.
authorEric Anholt <eric@anholt.net>
Thu, 10 May 2018 19:42:05 +0000 (12:42 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 11 May 2018 10:02:04 +0000 (12:02 +0200)
We had the camera driver set up in a module_init function, but that
meant that the camera driver would fail to load if it was initialized
before VCHI.  By attaching to this platform_device, it can get a
defined load order.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c

index 3cd6177a73735afbb13c82e8d8f82775b0f088e5..aaa264f3b59866ebfd8db996de1c2e99693ebfa9 100644 (file)
@@ -168,6 +168,7 @@ static VCHIQ_STATE_T g_state;
 static struct class  *vchiq_class;
 static struct device *vchiq_dev;
 static DEFINE_SPINLOCK(msg_queue_spinlock);
+static struct platform_device *bcm2835_camera;
 
 static const char *const ioctl_names[] = {
        "CONNECT",
@@ -3638,6 +3639,10 @@ static int vchiq_probe(struct platform_device *pdev)
                VCHIQ_VERSION, VCHIQ_VERSION_MIN,
                MAJOR(vchiq_devid), MINOR(vchiq_devid));
 
+       bcm2835_camera = platform_device_register_data(&pdev->dev,
+                                                      "bcm2835-camera", -1,
+                                                      NULL, 0);
+
        return 0;
 
 failed_debugfs_init:
@@ -3655,6 +3660,7 @@ failed_platform_init:
 
 static int vchiq_remove(struct platform_device *pdev)
 {
+       platform_device_unregister(bcm2835_camera);
        vchiq_debugfs_deinit();
        device_destroy(vchiq_class, vchiq_devid);
        class_destroy(vchiq_class);