Return-Path: Received: from mail-by2nam03on0095.outbound.protection.outlook.com ([104.47.42.95]:43489 "EHLO NAM03-BY2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754741AbeCHE4E (ORCPT ); Wed, 7 Mar 2018 23:56:04 -0500 From: Sasha Levin To: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" CC: Loic Poulain , Marcel Holtmann , Sasha Levin Subject: [PATCH AUTOSEL for 4.15 03/78] Bluetooth: hci_qca: Avoid setup failure on missing rampatch Date: Thu, 8 Mar 2018 04:56:01 +0000 Message-ID: <20180308045525.7662-3-alexander.levin@microsoft.com> References: <20180308045525.7662-1-alexander.levin@microsoft.com> In-Reply-To: <20180308045525.7662-1-alexander.levin@microsoft.com> Content-Language: en-US Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org List-ID: From: Loic Poulain [ Upstream commit ba8f3597900291a93604643017fff66a14546015 ] Assuming that the original code idea was to enable in-band sleeping only if the setup_rome method returns succes and run in 'standard' mode otherwise, we should not return setup_rome return value which makes qca_setup fail if no rampatch/nvm file found. This fixes BT issue on the dragonboard-820C p4 which includes the following QCA controller: hci0: Product:0x00000008 hci0: Patch :0x00000111 hci0: ROM :0x00000302 hci0: SOC :0x00000044 Since there is no rampatch for this controller revision, just make it work as is. Signed-off-by: Loic Poulain Signed-off-by: Marcel Holtmann Signed-off-by: Sasha Levin --- drivers/bluetooth/hci_qca.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index bbd7db7384e6..05ec530b8a3a 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -932,6 +932,9 @@ static int qca_setup(struct hci_uart *hu) if (!ret) { set_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags); qca_debugfs_init(hdev); + } else if (ret =3D=3D -ENOENT) { + /* No patch/nvm-config found, run with original fw/config */ + ret =3D 0; } =20 /* Setup bdaddr */ --=20 2.14.1