From b9cdff84a2c5474b8abd8edea8b50f4f9d2d2ca4 Mon Sep 17 00:00:00 2001 From: William Qiu Date: Wed, 20 Sep 2023 17:19:59 +0800 Subject: uart: 8250: add reset operation in runtime PM add reset operation in runtime PM Signed-off-by: William Qiu --- drivers/tty/serial/8250/8250_dw.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index 25e434e68ee1..d02665688f35 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -674,6 +674,8 @@ static int dw8250_runtime_suspend(struct device *dev) { struct dw8250_data *data = dev_get_drvdata(dev); + reset_control_assert(data->rst); + clk_disable_unprepare(data->clk); clk_disable_unprepare(data->pclk); @@ -689,6 +691,8 @@ static int dw8250_runtime_resume(struct device *dev) clk_prepare_enable(data->clk); + reset_control_deassert(data->rst); + return 0; } #endif -- cgit v1.2.3