Add basic support for serdev enumerated devices, note sine this does
not (yet) declare any of / ACPI ids to bind to atm this is a nop.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
drivers/bluetooth/hci_h5.c | 52 +++++++++++++++++++++++++++++++++++---
1 file changed, 48 insertions(+), 4 deletions(-)
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
index 6a8d0d06aba7..672f63623bf7 100644
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -23,6 +23,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
+#include <linux/serdev.h>
#include <linux/skbuff.h>
#include <net/bluetooth/bluetooth.h>
@@ -65,6 +66,9 @@ enum {
};
struct h5 {
+ /* Must be the first member, hci_serdev.c expects this. */
+ struct hci_uart serdev_hu;
+
struct sk_buff_head unack; /* Unack'ed packets queue */
struct sk_buff_head rel; /* Reliable packets queue */
struct sk_buff_head unrel; /* Unreliable packets queue */
@@ -193,9 +197,13 @@ static int h5_open(struct hci_uart *hu)
BT_DBG("hu %p", hu);
- h5 = kzalloc(sizeof(*h5), GFP_KERNEL);
- if (!h5)
- return -ENOMEM;
+ if (hu->serdev) {
+ h5 = serdev_device_get_drvdata(hu->serdev);
+ } else {
+ h5 = kzalloc(sizeof(*h5), GFP_KERNEL);
+ if (!h5)
+ return -ENOMEM;
+ }
hu->priv = h5;
h5->hu = hu;
@@ -229,7 +237,8 @@ static int h5_close(struct hci_uart *hu)
skb_queue_purge(&h5->rel);
skb_queue_purge(&h5->unrel);
- kfree(h5);
+ if (!hu->serdev)
+ kfree(h5);
return 0;
}
@@ -750,12 +759,47 @@ static const struct hci_uart_proto h5p = {
.flush = h5_flush,
};
+static int h5_serdev_probe(struct serdev_device *serdev)
+{
+ struct device *dev = &serdev->dev;
+ struct h5 *h5;
+
+ h5 = devm_kzalloc(dev, sizeof(*h5), GFP_KERNEL);
+ if (!h5)
+ return -ENOMEM;
+
+ set_bit(HCI_UART_RESET_ON_INIT, &h5->serdev_hu.flags);
+
+ h5->hu = &h5->serdev_hu;
+ h5->serdev_hu.serdev = serdev;
+ serdev_device_set_drvdata(serdev, h5);
+
+ return hci_uart_register_device(&h5->serdev_hu, &h5p);
+}
+
+static void h5_serdev_remove(struct serdev_device *serdev)
+{
+ struct h5 *h5 = serdev_device_get_drvdata(serdev);
+
+ hci_uart_unregister_device(&h5->serdev_hu);
+}
+
+static struct serdev_device_driver h5_serdev_driver = {
+ .probe = h5_serdev_probe,
+ .remove = h5_serdev_remove,
+ .driver = {
+ .name = "hci_uart_h5",
+ },
+};
+
int __init h5_init(void)
{
+ serdev_device_driver_register(&h5_serdev_driver);
return hci_uart_register_proto(&h5p);
}
int __exit h5_deinit(void)
{
+ serdev_device_driver_unregister(&h5_serdev_driver);
return hci_uart_unregister_proto(&h5p);
}
--
2.18.0
--
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