From 9c561be107f67a878c902970b0fca27f35baf071 Mon Sep 17 00:00:00 2001 From: Vyacheslav Bocharov Date: Tue, 19 Oct 2021 12:46:06 +0300 Subject: [PATCH 002/101] drv:bluetooth:hci_h5: power reset via gpio in h5_btrtl_open Add power reset via enable-gpios in h5_btrtl_open function. Signed-off-by: Vyacheslav Bocharov --- drivers/bluetooth/hci_h5.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c index c9b54335a..a56e378b1 100644 --- a/drivers/bluetooth/hci_h5.c +++ b/drivers/bluetooth/hci_h5.c @@ -971,6 +971,11 @@ static void h5_btrtl_open(struct h5 *h5) pm_runtime_enable(&h5->hu->serdev->dev); } + /* The controller needs reset to startup */ + gpiod_set_value_cansleep(h5->enable_gpio, 0); + gpiod_set_value_cansleep(h5->device_wake_gpio, 0); + msleep(100); + /* The controller needs up to 500ms to wakeup */ gpiod_set_value_cansleep(h5->enable_gpio, 1); gpiod_set_value_cansleep(h5->device_wake_gpio, 1); -- 2.31.1