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rpmsg: char: Export alias for RPMSG ID rpmsg-raw from table 

Module aliases are used by userspace to identify the correct module to
load for a detected hardware. The currently supported RPMSG device IDs for
this module include "rpmsg-raw", but the module alias is "rpmsg_chrdev".

Use the helper macro MODULE_DEVICE_TABLE(rpmsg) to export the correct
supported IDs. And while here, to keep backwards compatibility we also add
the other ID "rpmsg_chrdev" so that it is also still exported as an alias.

This has the side benefit of adding support for some legacy firmware
which still uses the original "rpmsg_chrdev" ID. This was the ID used for
this driver before it was upstreamed (as reflected by the module alias).

Signed-off-by: Andrew Davis <afd@ti.com>
Acked-by: Hari Nagalla <hnagalla@ti.com>
Tested-by: Hari Nagalla <hnagalla@ti.com>
Link: https://lore.kernel.org/r/20250619205722.133827-1-afd@ti.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
This commit is contained in:
Andrew Davis 2025-06-19 15:57:22 -05:00 committed by Mathieu Poirier
parent c17b750b3a
commit 6e29c30d8d
1 changed files with 2 additions and 1 deletions
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3
drivers/rpmsg/rpmsg_char.c
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@ -522,8 +522,10 @@ static void rpmsg_chrdev_remove(struct rpmsg_device *rpdev)
static struct rpmsg_device_id rpmsg_chrdev_id_table[] = {
{ .name = "rpmsg-raw" },
{ .name = "rpmsg_chrdev" },
{ },
};
MODULE_DEVICE_TABLE(rpmsg, rpmsg_chrdev_id_table);
static struct rpmsg_driver rpmsg_chrdev_driver = {
.probe = rpmsg_chrdev_probe,
@ -565,6 +567,5 @@ static void rpmsg_chrdev_exit(void)
}
module_exit(rpmsg_chrdev_exit);
MODULE_ALIAS("rpmsg:rpmsg_chrdev");
MODULE_DESCRIPTION("RPMSG device interface");
MODULE_LICENSE("GPL v2");