[PATCH 3/4] lib: serial: Clean up coding style in sifive-uart.c
Anup Patel
anup at brainfault.org
Fri Jul 29 22:27:03 PDT 2022
On Mon, Jul 18, 2022 at 10:50 PM Andrew Jones <ajones at ventanamicro.com> wrote:
>
> Signed-off-by: Andrew Jones <ajones at ventanamicro.com>
Looks good to me.
Reviewed-by: Anup Patel <anup at brainfault.org>
Regards,
Anup
> ---
> lib/utils/serial/sifive-uart.c | 11 ++++++++---
> 1 file changed, 8 insertions(+), 3 deletions(-)
>
> diff --git a/lib/utils/serial/sifive-uart.c b/lib/utils/serial/sifive-uart.c
> index 9478a77f8054..7078611a5274 100644
> --- a/lib/utils/serial/sifive-uart.c
> +++ b/lib/utils/serial/sifive-uart.c
> @@ -48,12 +48,12 @@ static inline unsigned int uart_min_clk_divisor(uint64_t in_freq,
> uint64_t max_target_hz)
> {
> uint64_t quotient = (in_freq + max_target_hz - 1) / (max_target_hz);
> +
> /* Avoid underflow */
> - if (quotient == 0) {
> + if (quotient == 0)
> return 0;
> - } else {
> + else
> return quotient - 1;
> - }
> }
>
> static u32 get_reg(u32 num)
> @@ -77,8 +77,10 @@ static void sifive_uart_putc(char ch)
> static int sifive_uart_getc(void)
> {
> u32 ret = get_reg(UART_REG_RXFIFO);
> +
> if (!(ret & UART_RXFIFO_EMPTY))
> return ret & UART_RXFIFO_DATA;
> +
> return -1;
> }
>
> @@ -97,10 +99,13 @@ int sifive_uart_init(unsigned long base, u32 in_freq, u32 baudrate)
> /* Configure baudrate */
> if (in_freq)
> set_reg(UART_REG_DIV, uart_min_clk_divisor(in_freq, baudrate));
> +
> /* Disable interrupts */
> set_reg(UART_REG_IE, 0);
> +
> /* Enable TX */
> set_reg(UART_REG_TXCTRL, UART_TXCTRL_TXEN);
> +
> /* Enable Rx */
> set_reg(UART_REG_RXCTRL, UART_RXCTRL_RXEN);
>
> --
> 2.36.1
>
>
> --
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