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serial: stm32: clock disabling management

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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 <[email protected]>
Signed-off-by: Alexandre TORGUE <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Alexandre TORGUE 2016-09-15 18:42:38 +02:00 • committed by Greg Kroah-Hartman
commit 511c7b1baa
1 changed files with 3 additions and 2 deletions
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5
drivers/tty/serial/stm32-usart.c
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@ -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);
}