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drivers: Fix asserts in i.MX UART Driver

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After running some tests which enable assert macro I found some issues
with the i.MX UART configuration.

This patch configures the Tx Fifo Watermark and Modem Mode accordingly.

Signed-off-by: Diego Sueiro <diego.sueiro@gmail.com>
This commit is contained in:
Diego Sueiro 2018-07-16 09:51:21 +01:00 • committed by Maureen Helm
commit ecc891b296
3 changed files with 3 additions and 3 deletions
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2
boards/arm/colibri_imx7d_m4/colibri_imx7d_m4.dts
View file

@ -49,7 +49,7 @@
&uart2 {
status = "ok";
current-speed = <115200>;
modem-mode = <1>;
modem-mode = <64>;
};
&gpio1 {

2
drivers/serial/uart_imx.c
View file

@ -74,7 +74,7 @@ static int uart_imx_init(struct device *dev)
UART_Init(uart, &initConfig);
/* Set UART build-in hardware FIFO Watermark. */
UART_SetTxFifoWatermark(uart, 1);
UART_SetTxFifoWatermark(uart, 2);
UART_SetRxFifoWatermark(uart, 1);
/* restore interrupt state */

2
dts/bindings/serial/nxp,imx-uart.yaml
View file

@ -48,7 +48,7 @@ properties:
modem-mode:
type: int
category: required
description: Set the UART Port to modem mode 0 (dce) 1 (dte)
description: Set the UART Port to modem mode 0 (dce) 64 (dte)
generation: define
...