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linux (Allwinner): Bluetooth: hci_h5: Add power reset via gpio in h5_btrtl_open

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heitbaum 2022-01-19 09:12:08 +00:00
parent 82c0101d55
commit 6b294fb91e
1 changed files with 28 additions and 0 deletions
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projects/Allwinner/patches/linux/0059-bluetooth-hci-h5-add-power-reset-via-gpio-in-h5-btrtl-open.patch Normal file
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@ -0,0 +1,28 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Vyacheslav Bocharov <adeep@lexina.in>
Subject: [PATCH v3 2/2] Bluetooth: hci_h5: Add power reset via gpio in h5_btrtl_open
Date: Wed, 27 Oct 2021 12:14:16 +0300
Add power reset via enable-gpios in h5_btrtl_open function.
Signed-off-by: Vyacheslav Bocharov <adeep@lexina.in>
---
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 34286ffe0568..fdf504b0d265 100644
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -966,6 +966,11 @@ 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);