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33 lines
867 B
Diff
33 lines
867 B
Diff
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From 777d288f03a0b350f6c2d4367b01a80d9f25cd6e Mon Sep 17 00:00:00 2001
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From: William Qiu <william.qiu@starfivetech.com>
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Date: Wed, 20 Sep 2023 17:19:59 +0800
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Subject: [PATCH 068/116] uart: 8250: add reset operation in runtime PM
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add reset operation in runtime PM
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Signed-off-by: William Qiu <william.qiu@starfivetech.com>
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---
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drivers/tty/serial/8250/8250_dw.c | 4 ++++
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1 file changed, 4 insertions(+)
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--- a/drivers/tty/serial/8250/8250_dw.c
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+++ b/drivers/tty/serial/8250/8250_dw.c
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@@ -745,6 +745,8 @@ static int dw8250_runtime_suspend(struct
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{
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struct dw8250_data *data = dev_get_drvdata(dev);
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+ reset_control_assert(data->rst);
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+
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clk_disable_unprepare(data->clk);
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clk_disable_unprepare(data->pclk);
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@@ -760,6 +762,8 @@ static int dw8250_runtime_resume(struct
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clk_prepare_enable(data->clk);
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+ reset_control_deassert(data->rst);
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+
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return 0;
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}
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