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authorEvan Green <evgreen@chromium.org>2019-01-02 16:02:12 -0800
committerAndy Gross <andy.gross@linaro.org>2019-02-01 16:08:27 -0600
commitb4aa93bca91318a8cf832b9fd34a830e44660d50 (patch)
tree5350f1d5869ded875a592f3efce28e6d5ba5a86e /drivers/soc
parent4eccc154b3866e59358f1102045d23a301dffe0a (diff)
soc: qcom: rmtfs-mem: Add class to enable uevents
Currently the qcom_rmtfs_memN devices are entirely invisible to the udev world. Add a class to the rmtfs device so that uevents fire when the device is added. Reviewed-by: Brian Norris <briannorris@chromium.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Evan Green <evgreen@chromium.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
Diffstat (limited to 'drivers/soc')
-rw-r--r--drivers/soc/qcom/rmtfs_mem.c26
1 files changed, 21 insertions, 5 deletions
diff --git a/drivers/soc/qcom/rmtfs_mem.c b/drivers/soc/qcom/rmtfs_mem.c
index 97bb5989aa21..b2fa8fc8016c 100644
--- a/drivers/soc/qcom/rmtfs_mem.c
+++ b/drivers/soc/qcom/rmtfs_mem.c
@@ -132,6 +132,11 @@ static int qcom_rmtfs_mem_release(struct inode *inode, struct file *filp)
return 0;
}
+static struct class rmtfs_class = {
+ .owner = THIS_MODULE,
+ .name = "rmtfs",
+};
+
static const struct file_operations qcom_rmtfs_mem_fops = {
.owner = THIS_MODULE,
.open = qcom_rmtfs_mem_open,
@@ -199,6 +204,7 @@ static int qcom_rmtfs_mem_probe(struct platform_device *pdev)
dev_set_name(&rmtfs_mem->dev, "qcom_rmtfs_mem%d", client_id);
rmtfs_mem->dev.id = client_id;
+ rmtfs_mem->dev.class = &rmtfs_class;
rmtfs_mem->dev.devt = MKDEV(MAJOR(qcom_rmtfs_mem_major), client_id);
ret = cdev_device_add(&rmtfs_mem->cdev, &rmtfs_mem->dev);
@@ -277,32 +283,42 @@ static struct platform_driver qcom_rmtfs_mem_driver = {
},
};
-static int qcom_rmtfs_mem_init(void)
+static int __init qcom_rmtfs_mem_init(void)
{
int ret;
+ ret = class_register(&rmtfs_class);
+ if (ret)
+ return ret;
+
ret = alloc_chrdev_region(&qcom_rmtfs_mem_major, 0,
QCOM_RMTFS_MEM_DEV_MAX, "qcom_rmtfs_mem");
if (ret < 0) {
pr_err("qcom_rmtfs_mem: failed to allocate char dev region\n");
- return ret;
+ goto unregister_class;
}
ret = platform_driver_register(&qcom_rmtfs_mem_driver);
if (ret < 0) {
pr_err("qcom_rmtfs_mem: failed to register rmtfs_mem driver\n");
- unregister_chrdev_region(qcom_rmtfs_mem_major,
- QCOM_RMTFS_MEM_DEV_MAX);
+ goto unregister_chrdev;
}
+ return 0;
+
+unregister_chrdev:
+ unregister_chrdev_region(qcom_rmtfs_mem_major, QCOM_RMTFS_MEM_DEV_MAX);
+unregister_class:
+ class_unregister(&rmtfs_class);
return ret;
}
module_init(qcom_rmtfs_mem_init);
-static void qcom_rmtfs_mem_exit(void)
+static void __exit qcom_rmtfs_mem_exit(void)
{
platform_driver_unregister(&qcom_rmtfs_mem_driver);
unregister_chrdev_region(qcom_rmtfs_mem_major, QCOM_RMTFS_MEM_DEV_MAX);
+ class_unregister(&rmtfs_class);
}
module_exit(qcom_rmtfs_mem_exit);