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Add gpio power reset for hci_h5 controllers in h5_btrtl_open (#3208)

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Vyacheslav
2021-10-19 22:02:24 +03:00
committed by GitHub
parent c83bb5c3b2
commit 07523f5a9e
2 changed files with 33 additions and 0 deletions
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1
lib/compilation-prepare.sh
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@@ -590,6 +590,7 @@ compilation_prepare()
display_alert "Adding" "Bluetooth support for Realtek 8822CS (hci_ver 0x8) chipsets" "info" display_alert "Adding" "Bluetooth support for Realtek 8822CS (hci_ver 0x8) chipsets" "info"
process_patch_file "${SRC}/patch/misc/bluetooth-rtl8822cs-hci_ver-0x8.patch" "applying" process_patch_file "${SRC}/patch/misc/bluetooth-rtl8822cs-hci_ver-0x8.patch" "applying"
process_patch_file "${SRC}/patch/misc/Bluetooth-hci_h5-Add-power-reset-via-gpio-in-h5_btrt.patch" "applying"
fi fi

32
patch/misc/Bluetooth-hci_h5-Add-power-reset-via-gpio-in-h5_btrt.patch Normal file
View File

@@ -0,0 +1,32 @@
From 9acbe79e6e546c216dff1bc9b45d7262c5952b6c Mon Sep 17 00:00:00 2001
From: Vyacheslav Bocharov <adeep@lexina.in>
Date: Tue, 19 Oct 2021 12:46:06 +0300
Subject: [PATCH 2/2] Bluetooth: hci_h5: Add power reset via gpio in
h5_btrtl_open
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 0c0dedece59c..ab7c929cc25d 100644
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -968,6 +968,11 @@ static void h5_btrtl_open(struct h5 *h5)
SUSPEND_TIMEOUT_MS);
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);
--
2.30.2