[PATCH] tty: atmel_serial: Use of_property_present() for non-boolean properties
Nicolas Ferre
nicolas.ferre at microchip.com
Fri Jan 10 01:32:46 PST 2025
On 09/01/2025 at 19:20, Rob Herring (Arm) wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> The use of of_property_read_bool() for non-boolean properties is
> deprecated in favor of of_property_present() when testing for property
> presence.
>
> As of_property_present() returns a boolean, use that directly
> and simplify the code a bit while we're here.
Indeed! Thanks Rob.
Reviewed-by: Nicolas Ferre <nicolas.ferre at microchip.com>
> Signed-off-by: Rob Herring (Arm) <robh at kernel.org>
> ---
> drivers/tty/serial/atmel_serial.c | 18 ++++--------------
> 1 file changed, 4 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
> index 0cf05ac18993..f44f9d20a974 100644
> --- a/drivers/tty/serial/atmel_serial.c
> +++ b/drivers/tty/serial/atmel_serial.c
> @@ -1727,26 +1727,16 @@ static void atmel_init_property(struct atmel_uart_port *atmel_port,
>
> /* DMA/PDC usage specification */
> if (of_property_read_bool(np, "atmel,use-dma-rx")) {
> - if (of_property_read_bool(np, "dmas")) {
> - atmel_port->use_dma_rx = true;
> - atmel_port->use_pdc_rx = false;
> - } else {
> - atmel_port->use_dma_rx = false;
> - atmel_port->use_pdc_rx = true;
> - }
> + atmel_port->use_dma_rx = of_property_present(np, "dmas");
> + atmel_port->use_pdc_rx = !atmel_port->use_dma_rx;
> } else {
> atmel_port->use_dma_rx = false;
> atmel_port->use_pdc_rx = false;
> }
>
> if (of_property_read_bool(np, "atmel,use-dma-tx")) {
> - if (of_property_read_bool(np, "dmas")) {
> - atmel_port->use_dma_tx = true;
> - atmel_port->use_pdc_tx = false;
> - } else {
> - atmel_port->use_dma_tx = false;
> - atmel_port->use_pdc_tx = true;
> - }
> + atmel_port->use_dma_tx = of_property_present(np, "dmas");
> + atmel_port->use_pdc_tx = !atmel_port->use_dma_tx;
> } else {
> atmel_port->use_dma_tx = false;
> atmel_port->use_pdc_tx = false;
> --
> 2.45.2
>
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