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Bluetooth: hci_qca: Add delay after power-off pulse
During initialization the power-on pulse is currently sent inmediately after the prior power-off pulse. With this initialization 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) After a power-off pulse wait 10ms to give the controller time to power off. Remove the previous short settling delay, it isn't needed anymore. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Balakrishna Godavarthi <bgodavar@codeaurora.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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@ -1031,13 +1031,13 @@ static int qca_send_power_pulse(struct hci_uart *hu, bool on)
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}
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serdev_device_wait_until_sent(hu->serdev, timeout);
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/* Wait for 100 uS for SoC to settle down */
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usleep_range(100, 200);
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hci_uart_set_flow_control(hu, false);
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/* Give to controller time to boot/shutdown */
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if (on)
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msleep(100);
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else
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msleep(10);
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return 0;
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}
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