From b0672f8237145240b60bf0716a93ae9d41181abd Mon Sep 17 00:00:00 2001
From: Furkan Akkiz <hasanfurkan.akkiz@analog.com>
Date: Wed, 18 Dec 2024 11:34:38 +0300
Subject: [PATCH] drivers: serial: Add clock source selection feature to MAX32
 UART

This commit adds clock source selection feature to UART of MAX32 MCUs.

Signed-off-by: Furkan Akkiz <hasanfurkan.akkiz@analog.com>
---
 drivers/serial/uart_max32.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/serial/uart_max32.c b/drivers/serial/uart_max32.c
index 0ed5bcf709f..2df1025ac25 100644
--- a/drivers/serial/uart_max32.c
+++ b/drivers/serial/uart_max32.c
@@ -293,6 +293,12 @@ static int uart_max32_init(const struct device *dev)
 		return ret;
 	}
 
+	ret = Wrap_MXC_UART_SetClockSource(regs, cfg->perclk.clk_src);
+	if (ret != 0) {
+		LOG_ERR("Cannot set UART clock source");
+		return ret;
+	}
+
 	ret = pinctrl_apply_state(cfg->pctrl, PINCTRL_STATE_DEFAULT);
 	if (ret) {
 		return ret;