From 36ee1f4e0a7f28c9df150dfd731142eb039bb798 Mon Sep 17 00:00:00 2001
From: Joel Spadin <joelspadin@gmail.com>
Date: Sat, 10 Dec 2022 21:50:57 -0600
Subject: [PATCH] fix(boards): Fix nRF5340 DK issues

- Fixed a stack overflow when enabling Bluetooth.
- Increased the I2C buffer size to support displays.
---
 app/boards/nrf5340dk_nrf5340_cpuapp.conf    |  3 ++-
 app/boards/nrf5340dk_nrf5340_cpuapp.overlay | 10 ++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 app/boards/nrf5340dk_nrf5340_cpuapp.overlay

diff --git a/app/boards/nrf5340dk_nrf5340_cpuapp.conf b/app/boards/nrf5340dk_nrf5340_cpuapp.conf
index a40195e3..ccb0ddba 100644
--- a/app/boards/nrf5340dk_nrf5340_cpuapp.conf
+++ b/app/boards/nrf5340dk_nrf5340_cpuapp.conf
@@ -11,5 +11,6 @@ CONFIG_FLASH=y
 CONFIG_FLASH_PAGE_LAYOUT=y
 CONFIG_FLASH_MAP=y
 
-# Default main stack size is too small for HCI RPMsg
+# Default main and BLE stack sizes are too small for HCI RPMsg
 CONFIG_MAIN_STACK_SIZE=2048
+CONFIG_ZMK_BLE_THREAD_STACK_SIZE=1024
diff --git a/app/boards/nrf5340dk_nrf5340_cpuapp.overlay b/app/boards/nrf5340dk_nrf5340_cpuapp.overlay
new file mode 100644
index 00000000..66d2332f
--- /dev/null
+++ b/app/boards/nrf5340dk_nrf5340_cpuapp.overlay
@@ -0,0 +1,10 @@
+/*
+ * Copyright (c) 2022 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+&arduino_i2c {
+    // Default buffer size is too small for use with displays.
+    zephyr,concat-buf-size = <512>;
+};