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Message-ID: <20180308050023.8548-78-alexander.levin@microsoft.com>
Date: Thu, 8 Mar 2018 05:02:07 +0000
From: Sasha Levin <Alexander.Levin@...rosoft.com>
To: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"stable@...r.kernel.org" <stable@...r.kernel.org>
CC: Loic Poulain <loic.poulain@...aro.org>,
Marcel Holtmann <marcel@...tmann.org>,
Sasha Levin <Alexander.Levin@...rosoft.com>
Subject: [PATCH AUTOSEL for 4.4 078/101] Bluetooth: hci_qca: Avoid setup
failure on missing rampatch
From: Loic Poulain <loic.poulain@...aro.org>
[ 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 <loic.poulain@...aro.org>
Signed-off-by: Marcel Holtmann <marcel@...tmann.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
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 71325e443e46..8a3bf0a8c31d 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 == -ENOENT) {
+ /* No patch/nvm-config found, run with original fw/config */
+ ret = 0;
}
/* Setup bdaddr */
--
2.14.1
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