Merge drm/drm-next into drm-misc-next

Finally have a reason for a backmerge other than "it's been a while"!

Backmerging drm-next to -misc-next to facilitate Rob Herring's work on
Panfrost.

Signed-off-by: Sean Paul <seanpaul@chromium.org>

1 files changed, 47 insertions, 1 deletions

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 7352fe85674b..d6b2540ba7f8 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -30,6 +30,7 @@
 #include <linux/rfkill.h>
 #include <linux/debugfs.h>
 #include <linux/crypto.h>
+#include <linux/property.h>
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -1355,6 +1356,32 @@ done:
 	return err;
 }
 
+/**
+ * hci_dev_get_bd_addr_from_property - Get the Bluetooth Device Address
+ *				       (BD_ADDR) for a HCI device from
+ *				       a firmware node property.
+ * @hdev:	The HCI device
+ *
+ * Search the firmware node for 'local-bd-address'.
+ *
+ * All-zero BD addresses are rejected, because those could be properties
+ * that exist in the firmware tables, but were not updated by the firmware. For
+ * example, the DTS could define 'local-bd-address', with zero BD addresses.
+ */
+static void hci_dev_get_bd_addr_from_property(struct hci_dev *hdev)
+{
+	struct fwnode_handle *fwnode = dev_fwnode(hdev->dev.parent);
+	bdaddr_t ba;
+	int ret;
+
+	ret = fwnode_property_read_u8_array(fwnode, "local-bd-address",
+					    (u8 *)&ba, sizeof(ba));
+	if (ret < 0 || !bacmp(&ba, BDADDR_ANY))
+		return;
+
+	bacpy(&hdev->public_addr, &ba);
+}
+
 static int hci_dev_do_open(struct hci_dev *hdev)
 {
 	int ret = 0;
@@ -1422,6 +1449,22 @@ static int hci_dev_do_open(struct hci_dev *hdev)
 		if (hdev->setup)
 			ret = hdev->setup(hdev);
 
+		if (ret)
+			goto setup_failed;
+
+		if (test_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks)) {
+			if (!bacmp(&hdev->public_addr, BDADDR_ANY))
+				hci_dev_get_bd_addr_from_property(hdev);
+
+			if (bacmp(&hdev->public_addr, BDADDR_ANY) &&
+			    hdev->set_bdaddr)
+				ret = hdev->set_bdaddr(hdev,
+						       &hdev->public_addr);
+			else
+				ret = -EADDRNOTAVAIL;
+		}
+
+setup_failed:
 		/* The transport driver can set these quirks before
 		 * creating the HCI device or in its setup callback.
 		 *
@@ -2578,6 +2621,9 @@ static void hci_cmd_timeout(struct work_struct *work)
 		bt_dev_err(hdev, "command tx timeout");
 	}
 
+	if (hdev->cmd_timeout)
+		hdev->cmd_timeout(hdev);
+
 	atomic_set(&hdev->cmd_cnt, 1);
 	queue_work(hdev->workqueue, &hdev->cmd_work);
 }
@@ -3401,7 +3447,7 @@ EXPORT_SYMBOL(hci_resume_dev);
 /* Reset HCI device */
 int hci_reset_dev(struct hci_dev *hdev)
 {
-	const u8 hw_err[] = { HCI_EV_HARDWARE_ERROR, 0x01, 0x00 };
+	static const u8 hw_err[] = { HCI_EV_HARDWARE_ERROR, 0x01, 0x00 };
 	struct sk_buff *skb;
 
 	skb = bt_skb_alloc(3, GFP_ATOMIC);