51 lines
1.6 KiB
Diff
51 lines
1.6 KiB
Diff
From c057897812518b6c2366d8102643bcdf66592c4b Mon Sep 17 00:00:00 2001
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From: Tobias Schramm <t.schramm@manjaro.org>
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Date: Thu, 28 May 2020 14:15:08 +0200
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Subject: [PATCH 3/8] bluetooth: hci_bcm: disable power on shutdown
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Firmware behaves wonky when not power cycled over reboots
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Signed-off-by: Tobias Schramm <t.schramm@manjaro.org>
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---
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drivers/bluetooth/hci_bcm.c | 18 ++++++++++++++++++
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1 file changed, 18 insertions(+)
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diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
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index 8ea5ca8d71d6..6d5871992f79 100644
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--- a/drivers/bluetooth/hci_bcm.c
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+++ b/drivers/bluetooth/hci_bcm.c
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@@ -1469,6 +1469,23 @@ static void bcm_serdev_remove(struct serdev_device *serdev)
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hci_uart_unregister_device(&bcmdev->serdev_hu);
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}
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+static void bcm_serdev_shutdown(struct serdev_device *serdev)
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+{
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+ struct bcm_device *bcmdev = serdev_device_get_drvdata(serdev);
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+
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+/*
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+ if (test_bit(HCI_UART_REGISTERED, &bcmdev->hu->flags)) {
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+ hci_uart_unregister_device(&bcmdev->serdev_hu);
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+ }
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+*/
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+ dev_info(bcmdev->dev, "Cutting power to bluetooth module\n");
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+ if (bcm_gpio_set_power(bcmdev, false)) {
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+ dev_err(bcmdev->dev, "Failed to power down\n");
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+ }
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+ usleep_range(500000, 1000000);
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+}
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+
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+
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#ifdef CONFIG_OF
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static struct bcm_device_data bcm4354_device_data = {
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.no_early_set_baudrate = true,
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@@ -1494,6 +1511,7 @@ MODULE_DEVICE_TABLE(of, bcm_bluetooth_of_match);
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static struct serdev_device_driver bcm_serdev_driver = {
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.probe = bcm_serdev_probe,
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.remove = bcm_serdev_remove,
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+ .shutdown = bcm_serdev_shutdown,
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.driver = {
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.name = "hci_uart_bcm",
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.of_match_table = of_match_ptr(bcm_bluetooth_of_match),
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--
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2.28.0
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