diff options
Diffstat (limited to 'drivers/tty/serial/stm32-usart.c')
| -rw-r--r-- | drivers/tty/serial/stm32-usart.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c index 9c4357379b1e..72c0ec145527 100644 --- a/drivers/tty/serial/stm32-usart.c +++ b/drivers/tty/serial/stm32-usart.c @@ -468,6 +468,8 @@ static int stm32_startup(struct uart_port *port) } val = USART_CR1_RXNEIE | USART_CR1_TE | USART_CR1_RE; + if (stm32_port->fifoen) + val |= USART_CR1_FIFOEN; stm32_set_bits(port, ofs->cr1, val); return 0; @@ -482,6 +484,8 @@ static void stm32_shutdown(struct uart_port *port) val = USART_CR1_TXEIE | USART_CR1_RXNEIE | USART_CR1_TE | USART_CR1_RE; val |= BIT(cfg->uart_enable_bit); + if (stm32_port->fifoen) + val |= USART_CR1_FIFOEN; stm32_clr_bits(port, ofs->cr1, val); dev_pm_clear_wake_irq(port->dev); @@ -512,6 +516,8 @@ static void stm32_set_termios(struct uart_port *port, struct ktermios *termios, cr1 = USART_CR1_TE | USART_CR1_RE | USART_CR1_RXNEIE; cr1 |= BIT(cfg->uart_enable_bit); + if (stm32_port->fifoen) + cr1 |= USART_CR1_FIFOEN; cr2 = 0; cr3 = 0; @@ -676,6 +682,7 @@ static int stm32_init_port(struct stm32_port *stm32port, port->dev = &pdev->dev; port->irq = platform_get_irq(pdev, 0); stm32port->wakeirq = platform_get_irq(pdev, 1); + stm32port->fifoen = stm32port->info->cfg.has_fifo; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); port->membase = devm_ioremap_resource(&pdev->dev, res); |