On Tue, Feb 26, 2019 at 11:47 AM Matthias Kaehlcke <mka@xxxxxxxxxxxx> 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@xxxxxxxxxx> 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 >
