From 39b724cd9dda2814b7ced0458d78108fa02922d4 Mon Sep 17 00:00:00 2001
From: jeromecoutant <jerome.coutant@st.com>
Date: Wed, 4 Nov 2020 12:41:56 +0100
Subject: [PATCH] STM32L4: Use HSI for LPUART

Impact all STM32L4x5 and STM32L4x6 targets
---
 targets/targets.json | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/targets/targets.json b/targets/targets.json
index 2bb0dee4d79..108093a7746 100644
--- a/targets/targets.json
+++ b/targets/targets.json
@@ -3279,6 +3279,9 @@
         "extra_labels_add": [
             "STM32L475xG"
         ],
+        "overrides": {
+            "lpuart_clock_source": "USE_LPUART_CLK_HSI"
+        },
         "macros_add": [
             "STM32L475xx",
             "MBED_SPLIT_HEAP"
@@ -3322,6 +3325,9 @@
         "components_add": [
             "FLASHIAP"
         ],
+        "overrides": {
+            "lpuart_clock_source": "USE_LPUART_CLK_HSI"
+        },
         "macros_add": [
             "STM32L476xx",
             "MBED_SPLIT_HEAP"
@@ -3385,6 +3391,9 @@
         "components_add": [
             "FLASHIAP"
         ],
+        "overrides": {
+            "lpuart_clock_source": "USE_LPUART_CLK_HSI"
+        },
         "macros_add": [
             "STM32L486xx",
             "MBEDTLS_CONFIG_HW_SUPPORT",
@@ -3409,8 +3418,7 @@
             "MCU_STM32L486xG"
         ],
         "overrides": {
-            "clock_source": "USE_PLL_HSE_XTAL",
-            "lpuart_clock_source": "USE_LPUART_CLK_HSI"
+            "clock_source": "USE_PLL_HSE_XTAL"
         },
         "detect_code": [
             "0460"
@@ -3432,6 +3440,9 @@
         "components_add": [
             "FLASHIAP"
         ],
+        "overrides": {
+            "lpuart_clock_source": "USE_LPUART_CLK_HSI"
+        },
         "macros_add": [
             "STM32L496xx"
         ]