[PATCH 01/15] staging/vc04_services: Register a platform device for the camera driver.

From: Eric Anholt
Date: Thu May 10 2018 - 15:46:06 EST


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@xxxxxxxxxx>
---
.../staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index 3cd6177a7373..aaa264f3b598 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -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 @@ static int vchiq_probe(struct platform_device *pdev)

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);
--
2.17.0