linux-kernel - [PATCH] Bluetooth: hci_qca: Set BDA quirk bit if fwnode exists in DT

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Date: Tue, 23 Jan 2024 12:45:23 +0530
From: Janaki Ramaiah Thota <quic_janathot@...cinc.com>
To: Marcel Holtmann <marcel@...tmann.org>,
        Luiz Augusto von Dentz
	<luiz.dentz@...il.com>
CC: <quic_mohamull@...cinc.com>, <quic_hbandi@...cinc.com>,
        <linux-bluetooth@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] Bluetooth: hci_qca: Set BDA quirk bit if fwnode exists in DT

This change is done to avoid BT not to go UNCONFIGURED state when BDA
fwnode is not available in DT for QTI SOCs.

Signed-off-by: Janaki Ramaiah Thota <quic_janathot@...cinc.com>
---
 drivers/bluetooth/hci_qca.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 94b8c406f0c0..11d66f3e5f3f 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -7,6 +7,7 @@
  *
  *  Copyright (C) 2007 Texas Instruments, Inc.
  *  Copyright (c) 2010, 2012, 2018 The Linux Foundation. All rights reserved.
+ *  Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
  *
  *  Acknowledgements:
  *  This file is based on hci_ll.c, which was...
@@ -1904,7 +1905,17 @@ static int qca_setup(struct hci_uart *hu)
 	case QCA_WCN6750:
 	case QCA_WCN6855:
 	case QCA_WCN7850:
-		set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
+
+		/* Set BDA quirk bit for reading BDA value from fwnode property
+		 * only if that property exist in DT.
+		 */
+		if (fwnode_property_present(dev_fwnode(hdev->dev.parent), "local-bd-address")) {
+			set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
+			bt_dev_info(hdev, "setting quirk bit to read BDA from fwnode later");
+		} else {
+			bt_dev_info(hdev, "Not setting quirk bit for BDA");
+		}
+
 		hci_set_aosp_capable(hdev);
 
 		ret = qca_read_soc_version(hdev, &ver, soc_type);

base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d
prerequisite-patch-id: de5460a6c886a233feff19313b545ee6569369fb
prerequisite-patch-id: e18252a26d0f289afcbec18113b7f636a46a9aed
prerequisite-patch-id: 26e607ac96dc6d0d295793a0449a5b4c0f7ddc92
prerequisite-patch-id: c8d7f229399fc8075722ffe05260675ece93f691
prerequisite-patch-id: 554cc93ba4899eabe31585bf9591052058609d96
prerequisite-patch-id: 99c00a3d8d98a880c0d3a5545def0ca9ade0f903
prerequisite-patch-id: b1ef1add471677d1e1b60eaaab3e109abf7c7b2b
prerequisite-patch-id: 96131754c09914f327f353dee4daabb7ab5e6f29
prerequisite-patch-id: 610b5ec4a338d15cf8dba0459d5a1bfd28dccb4d
prerequisite-patch-id: 5172cd9d99462e123f264f0fd9a9768f2cae5498
prerequisite-patch-id: f57b8285516730da78089325d53f6125daaf2e6a
prerequisite-patch-id: 69dc26e36476660935070261f0e11cdd55c35688
prerequisite-patch-id: 8087dd28f6ef90fc3ad847b4bcde8a096ff721b5
prerequisite-patch-id: 8640fbfd7e5dcbdb4eacf5b748ea49678a2e6675
prerequisite-patch-id: b3613c0002cfd9cc77923f6ce781cec90a2f0cd1
prerequisite-patch-id: dc4f4077bfa02a5d5128bb39ef3a36dfc3db27bc
prerequisite-patch-id: 9c9aa8de9b4c50252d451a2dd76717c287fe1848
prerequisite-patch-id: 3c4a931debe7e8aa7d0b70870456421a17ff86a5
prerequisite-patch-id: df500031c7b6de9320021d52b060338b71340d91
prerequisite-patch-id: 14758d2fb4b6151aa9c27ab7e3cb8c742988f1d7
prerequisite-patch-id: 1c28faa0d8a4e294752229611ade87a216da0ce6
prerequisite-patch-id: 03680549373d9a5b0ab0e4c94260e8aaea04ef25
prerequisite-patch-id: cfcc27083466c9c87801628fe9c0f2131fc22dae
-- 
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