[PATCH 06/11] serial: stm32: clock disabling management
Alexandre TORGUE
alexandre.torgue at st.com
Thu Sep 15 09:42:38 PDT 2016
Keep the clock enabled at the end of stm32_init_port
but disable it in stm32_serial_remove.
Note that stm32_pm function is there to manage the
clock at runtime.
Signed-off-by: Gerald Baeza <gerald.baeza at st.com>
Signed-off-by: Alexandre TORGUE <alexandre.torgue at st.com>
diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index ab294b9..520e7de 100644
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -487,8 +487,6 @@ static int stm32_init_port(struct stm32_port *stm32port,
if (!stm32port->port.uartclk)
ret = -EINVAL;
- clk_disable_unprepare(stm32port->clk);
-
return ret;
}
@@ -557,6 +555,9 @@ static int stm32_serial_probe(struct platform_device *pdev)
static int stm32_serial_remove(struct platform_device *pdev)
{
struct uart_port *port = platform_get_drvdata(pdev);
+ struct stm32_port *stm32_port = to_stm32_port(port);
+
+ clk_disable_unprepare(stm32_port->clk);
return uart_remove_one_port(&stm32_usart_driver, port);
}
--
1.9.1
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