From: Hans Verkuil <hans.verk...@cisco.com>
This turns this driver into a platform device. This ensures that it
appears in /sys/bus/platform_device since it now has a proper parent
device.
Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
---
drivers/media/platform/vivid/vivid-core.c | 50 +++++++++++++++++++++++++++----
1 file changed, 45 insertions(+), 5 deletions(-)
diff --git a/drivers/media/platform/vivid/vivid-core.c
b/drivers/media/platform/vivid/vivid-core.c
index a7e033a..d2558db 100644
--- a/drivers/media/platform/vivid/vivid-core.c
+++ b/drivers/media/platform/vivid/vivid-core.c
@@ -26,6 +26,7 @@
#include <linux/vmalloc.h>
#include <linux/font.h>
#include <linux/mutex.h>
+#include <linux/platform_device.h>
#include <linux/videodev2.h>
#include <linux/v4l2-dv-timings.h>
#include <media/videobuf2-vmalloc.h>
@@ -618,7 +619,7 @@ static const struct v4l2_ioctl_ops vivid_ioctl_ops = {
Initialization and module stuff
------------------------------------------------------------------*/
-static int __init vivid_create_instance(int inst)
+static int vivid_create_instance(struct platform_device *pdev, int inst)
{
static const struct v4l2_dv_timings def_dv_timings =
V4L2_DV_BT_CEA_1280X720P60;
@@ -646,7 +647,7 @@ static int __init vivid_create_instance(int inst)
/* register v4l2_device */
snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name),
"%s-%03d", VIVID_MODULE_NAME, inst);
- ret = v4l2_device_register(NULL, &dev->v4l2_dev);
+ ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
if (ret)
goto free_dev;
@@ -1274,7 +1275,7 @@ free_dev:
will succeed. This is limited to the maximum number of devices that
videodev supports, which is equal to VIDEO_NUM_DEVICES.
*/
-static int __init vivid_init(void)
+static int vivid_probe(struct platform_device *pdev)
{
const struct font_desc *font = find_font("VGA8x16");
int ret = 0, i;
@@ -1289,7 +1290,7 @@ static int __init vivid_init(void)
n_devs = clamp_t(unsigned, n_devs, 1, VIVID_MAX_DEVS);
for (i = 0; i < n_devs; i++) {
- ret = vivid_create_instance(i);
+ ret = vivid_create_instance(pdev, i);
if (ret) {
/* If some instantiations succeeded, keep driver */
if (i)
@@ -1309,7 +1310,7 @@ static int __init vivid_init(void)
return ret;
}
-static void __exit vivid_exit(void)
+static int vivid_remove(struct platform_device *pdev)
{
struct vivid_dev *dev;
unsigned i;
@@ -1370,6 +1371,45 @@ static void __exit vivid_exit(void)
kfree(dev);
vivid_devs[i] = NULL;
}
+ return 0;
+}
+
+static void vivid_pdev_release(struct device *dev)
+{
+}
+
+static struct platform_device vivid_pdev = {
+ .name = "vivid",
+ .dev.release = vivid_pdev_release,
+};
+
+static struct platform_driver vivid_pdrv = {
+ .probe = vivid_probe,
+ .remove = vivid_remove,
+ .driver = {
+ .name = "vivid",
+ },
+};
+
+static int __init vivid_init(void)
+{
+ int ret;
+
+ ret = platform_device_register(&vivid_pdev);
+ if (ret)
+ return ret;
+
+ ret = platform_driver_register(&vivid_pdrv);
+ if (ret)
+ platform_device_unregister(&vivid_pdev);
+
+ return ret;
+}
+
+static void __exit vivid_exit(void)
+{
+ platform_driver_unregister(&vivid_pdrv);
+ platform_device_unregister(&vivid_pdev);
}
module_init(vivid_init);
--
2.1.4
--
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