difos/target/linux/starfive/patches-6.12/0010-uart-8250-add-reset-operation-in-runtime-PM.patch
Zoltan HERPAI 8f0f02d297 starfive: 6.12: refresh patches and drop upstreamed ones
- refresh, rebase and reorder patches
 - JH7110 media drivers have been dropped for now
 - JH7110 E24 and mailbox drivers were added
 - JH7100 DMA- and errata-patches have been dropped as they were
   upstreamed

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
2025-06-05 16:39:15 +02:00

32 lines
865 B
Diff

From ee5aab642d8a99a7a48d9b30f098ca2a97f463c4 Mon Sep 17 00:00:00 2001
From: William Qiu <william.qiu@starfivetech.com>
Date: Wed, 20 Sep 2023 17:19:59 +0800
Subject: [PATCH 10/55] uart: 8250: add reset operation in runtime PM
add reset operation in runtime PM
Signed-off-by: William Qiu <william.qiu@starfivetech.com>
---
drivers/tty/serial/8250/8250_dw.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -710,6 +710,8 @@ static int dw8250_runtime_suspend(struct
{
struct dw8250_data *data = dev_get_drvdata(dev);
+ reset_control_assert(data->rst);
+
clk_disable_unprepare(data->clk);
clk_disable_unprepare(data->pclk);
@@ -725,6 +727,8 @@ static int dw8250_runtime_resume(struct
clk_prepare_enable(data->clk);
+ reset_control_deassert(data->rst);
+
return 0;
}