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    SubjectRe: [PATCH v2 0/3] Bluetooth: hci_qca: Add delay after power-off pulse
    On Tue, Feb 26, 2019 at 11:47 AM Matthias Kaehlcke <mka@chromium.org> wrote:
    >
    > Initialization of the QCA WCN3990 often fails at boot time:
    >
    > [ 15.205224] Bluetooth: hci0: setting up wcn3990
    > [ 17.341062] Bluetooth: hci0: command 0xfc00 tx timeout
    > [ 22.101453] ERROR: Bluetooth initialization failed
    > [ 25.337740] Bluetooth: hci0: Reading QCA version information failed (-110)
    >
    > A short delay after sending a power-off pulse (which is done immediately
    > before sending a power-on pulse) fixes this.
    >
    > Also move the delays to qca_send_power_pulse(), since they are directly
    > related with sending the pulses. Change the interface of
    > qca_send_power_pulse() to receive a boolean instead of a power pulse
    > command, this improves readability of the function with the delays
    > added.
    >

    For the series:

    Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>

    Regards,
    Bjorn

    > Matthias Kaehlcke (3):
    > Bluetooth: hci_qca: Pass boolean 'on/off' to qca_send_power_pulse()
    > Bluetooth: hci_qca: Move boot delay to qca_send_power_pulse()
    > Bluetooth: hci_qca: Add delay after power-off pulse
    >
    > drivers/bluetooth/hci_qca.c | 21 +++++++++++----------
    > 1 file changed, 11 insertions(+), 10 deletions(-)
    >
    > --
    > 2.21.0.rc2.261.ga7da99ff1b-goog
    >

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