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serial: stm32: update conflicting RTS/CTS config comment

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The comment for conflicting RTS/CTS config refers to "st, hw-flow-ctrl",
but this property is deprecated since the generic RTS/CTS property has
been introduced by the patch 'serial: stm32: Use generic DT binding for
announcing RTS/CTS lines'.
Update the comment to refer to both generic and deprecated RTS/CTS
properties.

Signed-off-by: Erwan Le Ray <erwan.leray@foss.st.com>
Link: https://lore.kernel.org/r/20210106162203.28854-7-erwan.leray@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Erwan Le Ray 2021-01-06 17:22:01 +01:00 committed by Greg Kroah-Hartman
parent 9ba8377c3a
commit 9359369ada
1 changed files with 4 additions and 1 deletions
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5
drivers/tty/serial/stm32-usart.c
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@ -1031,7 +1031,10 @@ static int stm32_usart_init_port(struct stm32_port *stm32port,
goto err_clk;
}
/* Both CTS/RTS gpios and "st,hw-flow-ctrl" should not be specified */
/*
* Both CTS/RTS gpios and "st,hw-flow-ctrl" (deprecated) or "uart-has-rtscts"
* properties should not be specified.
*/
if (stm32port->hw_flow_control) {
if (mctrl_gpio_to_gpiod(stm32port->gpios, UART_GPIO_CTS) ||
mctrl_gpio_to_gpiod(stm32port->gpios, UART_GPIO_RTS)) {