From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-co1nam03on0092.outbound.protection.outlook.com ([104.47.40.92]:45512 "EHLO NAM03-CO1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755336AbeCHFD5 (ORCPT ); Thu, 8 Mar 2018 00:03:57 -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 4.9 152/190] Bluetooth: hci_qca: Avoid setup failure on missing rampatch Date: Thu, 8 Mar 2018 04:59:59 +0000 Message-ID: <20180308045810.8041-152-alexander.levin@microsoft.com> References: <20180308045810.8041-1-alexander.levin@microsoft.com> In-Reply-To: <20180308045810.8041-1-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 6c867fbc56a7..74b2f4a14643 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -936,6 +936,9 @@ 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