linux-kernel - [PATCH v2 0/2] Bluetooth: hci_qca: Fix WCN3990 firmware download

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Message-ID: <CAG5bF+RRSGq6rQjLzG4SF84pCJw-MP2Sw1aMEsyDojEznwDaSQ@mail.gmail.com>
Date:   Tue, 12 Mar 2019 13:42:21 -0700
From:   Matthias Kaehlcke <mka@...omium.org>
To:     Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>
Cc:     linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
        Balakrishna Godavarthi <bgodavar@...eaurora.org>,
        Hemantg <hemantg@...eaurora.org>,
        Rocky Liao <rjliao@...eaurora.org>,
        Harish Bandi <c-hbandi@...eaurora.org>,
        Matthias Kaehlcke <mka@...omium.org>
Subject: [PATCH v2 0/2] Bluetooth: hci_qca: Fix WCN3990 firmware download

Firmware download to the WCN3990 often fails with a 'TLV response size
mismatch' error:

[  133.064659] Bluetooth: hci0: setting up wcn3990
[  133.489150] Bluetooth: hci0: QCA controller version 0x02140201
[  133.495245] Bluetooth: hci0: QCA Downloading qca/crbtfw21.tlv
[  133.507214] Bluetooth: hci0: QCA TLV response size mismatch
[  133.513265] Bluetooth: hci0: QCA Failed to download patch (-84)

This is caused by a vendor event 'without command' that is misinterpreted.
Drop the event.

Matthias Kaehlcke (2):
  Bluetooth: hci_qca: Rename STATE_<flags> to QCA_<flags>
  Bluetooth: hci_qca: wcn3990: Drop baudrate change vendor event

 drivers/bluetooth/hci_qca.c | 73 ++++++++++++++++++++++++++++++++-----
 1 file changed, 63 insertions(+), 10 deletions(-)

-- 
2.21.0.360.g471c308f928-goog