Refactor and move media device initialization code to a new common
module, so it can be used by other devices, this will allow for example
a near to introduce imx7 CSI driver, to use this media device.
Signed-off-by: Rui Miguel Silva
---
drivers/staging/media/imx/Makefile| 1 +
.../staging/media/imx/imx-media-dev-common.c | 102 ++
drivers/staging/media/imx/imx-media-dev.c | 88 ---
drivers/staging/media/imx/imx-media-of.c | 6 +-
drivers/staging/media/imx/imx-media.h | 15 +++
5 files changed, 141 insertions(+), 71 deletions(-)
create mode 100644 drivers/staging/media/imx/imx-media-dev-common.c
diff --git a/drivers/staging/media/imx/Makefile
b/drivers/staging/media/imx/Makefile
index 698a4210316e..a30b3033f9a3 100644
--- a/drivers/staging/media/imx/Makefile
+++ b/drivers/staging/media/imx/Makefile
@@ -1,5 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
imx-media-objs := imx-media-dev.o imx-media-internal-sd.o imx-media-of.o
+imx-media-objs += imx-media-dev-common.o
imx-media-common-objs := imx-media-utils.o imx-media-fim.o
imx-media-ic-objs := imx-ic-common.o imx-ic-prp.o imx-ic-prpencvf.o
diff --git a/drivers/staging/media/imx/imx-media-dev-common.c
b/drivers/staging/media/imx/imx-media-dev-common.c
new file mode 100644
index ..55fe94fb72f2
--- /dev/null
+++ b/drivers/staging/media/imx/imx-media-dev-common.c
@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: GPL
+/*
+ * V4L2 Media Controller Driver for Freescale common i.MX5/6/7 SOC
+ *
+ * Copyright (c) 2018 Linaro Ltd
+ * Copyright (c) 2016 Mentor Graphics Inc.
+ */
+
+#include
+#include
+#include "imx-media.h"
+
+static const struct v4l2_async_notifier_operations imx_media_subdev_ops = {
+ .bound = imx_media_subdev_bound,
+ .complete = imx_media_probe_complete,
+};
+
+static const struct media_device_ops imx_media_md_ops = {
+ .link_notify = imx_media_link_notify,
+};
+
+struct imx_media_dev *imx_media_dev_init(struct device *dev)
+{
+ struct imx_media_dev *imxmd;
+ int ret;
+
+ imxmd = devm_kzalloc(dev, sizeof(*imxmd), GFP_KERNEL);
+ if (!imxmd)
+ return ERR_PTR(-ENOMEM);
+
+ dev_set_drvdata(dev, imxmd);
+
+ strlcpy(imxmd->md.model, "imx-media", sizeof(imxmd->md.model));
+ imxmd->md.ops = &imx_media_md_ops;
+ imxmd->md.dev = dev;
+
+ mutex_init(&imxmd->mutex);
+
+ imxmd->v4l2_dev.mdev = &imxmd->md;
+ strlcpy(imxmd->v4l2_dev.name, "imx-media",
+ sizeof(imxmd->v4l2_dev.name));
+
+ media_device_init(&imxmd->md);
+
+ ret = v4l2_device_register(dev, &imxmd->v4l2_dev);
+ if (ret < 0) {
+ v4l2_err(&imxmd->v4l2_dev,
+"Failed to register v4l2_device: %d\n", ret);
+ goto cleanup;
+ }
+
+ dev_set_drvdata(imxmd->v4l2_dev.dev, imxmd);
+
+ INIT_LIST_HEAD(&imxmd->vdev_list);
+
+ v4l2_async_notifier_init(&imxmd->notifier);
+
+ return imxmd;
+
+cleanup:
+ media_device_cleanup(&imxmd->md);
+
+ return ERR_PTR(ret);
+}
+EXPORT_SYMBOL_GPL(imx_media_dev_init);
+
+int imx_media_dev_notifier_register(struct imx_media_dev *imxmd)
+{
+ int ret;
+
+ /* no subdevs? just bail */
+ if (list_empty(&imxmd->notifier.asd_list)) {
+ v4l2_err(&imxmd->v4l2_dev, "no subdevs\n");
+ return -ENODEV;
+ }
+
+ /* prepare the async subdev notifier and register it */
+ imxmd->notifier.ops = &imx_media_subdev_ops;
+ ret = v4l2_async_notifier_register(&imxmd->v4l2_dev,
+ &imxmd->notifier);
+ if (ret) {
+ v4l2_err(&imxmd->v4l2_dev,
+"v4l2_async_notifier_register failed with %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(imx_media_dev_notifier_register);
+
+void imx_media_dev_cleanup(struct imx_media_dev *imxmd)
+{
+ v4l2_device_unregister(&imxmd->v4l2_dev);
+ media_device_cleanup(&imxmd->md);
+}
+EXPORT_SYMBOL_GPL(imx_media_dev_cleanup);
+
+void imx_media_dev_notifier_unregister(struct imx_media_dev *imxmd)
+{
+ v4l2_async_notifier_cleanup(&imxmd->notifier);
+}
+EXPORT_SYMBOL_GPL(imx_media_dev_notifier_unregister);
diff --git a/drivers/staging/media/imx/imx-media-dev.c
b/drivers/staging/media/imx/imx-media-dev.c
index 4b344a4a3706..21f65af5c738 100644
--- a/drivers/staging/media/imx/imx-media-dev.c
+++ b/drivers/staging/media/imx/imx-media-dev.c
@@ -116,9 +116,9 @@ static int imx_media_get_ipu(struct imx_media_dev *imxmd,
}
/* async subdev bound notifier */
-static int imx_media_subdev_bound(struct v4l2_async_notifier *notifier,
- struct v4l2_subdev *sd,
- struct v4l2_async_subdev *asd)
+int imx_media_subdev_bound(struct v4l2_async_notifier *notifier,
+ struct v4l2_subdev *sd,
+
