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serial: stm32: Use __maybe_unused instead of #if CONFIG_PM_SLEEP

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Use __maybe_unused for power management related functionsinstead of

fixes: 270e5a74fe ("serial: stm32: add wakeup mechanism")
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>

Link: https://lore.kernel.org/r/1560433800-12255-6-git-send-email-erwan.leray@st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Erwan Le Ray 2019-06-13 15:49:55 +02:00 committed by Greg Kroah-Hartman
parent fb6dcef62d
commit fe94347d6d
1 changed files with 4 additions and 5 deletions
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9
drivers/tty/serial/stm32-usart.c
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@ -1351,8 +1351,8 @@ static struct uart_driver stm32_usart_driver = {
.cons = STM32_SERIAL_CONSOLE,
};
#ifdef CONFIG_PM_SLEEP
static void stm32_serial_enable_wakeup(struct uart_port *port, bool enable)
static void __maybe_unused stm32_serial_enable_wakeup(struct uart_port *port,
bool enable)
{
struct stm32_port *stm32_port = to_stm32_port(port);
struct stm32_usart_offsets *ofs = &stm32_port->info->ofs;
@ -1376,7 +1376,7 @@ static void stm32_serial_enable_wakeup(struct uart_port *port, bool enable)
}
}
static int stm32_serial_suspend(struct device *dev)
static int __maybe_unused stm32_serial_suspend(struct device *dev)
{
struct uart_port *port = dev_get_drvdata(dev);
@ -1392,7 +1392,7 @@ static int stm32_serial_suspend(struct device *dev)
return 0;
}
static int stm32_serial_resume(struct device *dev)
static int __maybe_unused stm32_serial_resume(struct device *dev)
{
struct uart_port *port = dev_get_drvdata(dev);
@ -1403,7 +1403,6 @@ static int stm32_serial_resume(struct device *dev)
return uart_resume_port(&stm32_usart_driver, port);
}
#endif /* CONFIG_PM_SLEEP */
static int __maybe_unused stm32_serial_runtime_suspend(struct device *dev)
{