From bb8fc6a4aed8cd6181f0a51e6931d8be21011a60 Mon Sep 17 00:00:00 2001
From: huangcm <1263938474@qq.com>
Date: Thu, 17 Jul 2025 05:50:08 +0000
Subject: [PATCH] fix(debug): fix debug uart pro v2
---
longan/kernel/linux-4.9/drivers/tty/serial/sunxi-uart.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/longan/kernel/linux-4.9/drivers/tty/serial/sunxi-uart.c b/longan/kernel/linux-4.9/drivers/tty/serial/sunxi-uart.c
index 2f6815d..71c079a 100644
--- a/longan/kernel/linux-4.9/drivers/tty/serial/sunxi-uart.c
+++ b/longan/kernel/linux-4.9/drivers/tty/serial/sunxi-uart.c
@@ -1880,6 +1880,10 @@
pdev->dev.init_name = sw_uport->name;
pdev->dev.platform_data = sw_uport->pdata;
+ if( pdev->id == 0) {
+ msleep(50); // for uart0 boot pro
+ }
+
snprintf(uart_para, sizeof(uart_para), "uart%d_regulator", pdev->id);
ret = of_property_read_string(np, uart_para, &uart_string);
if (ret)
--
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