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drivers: serial: nrf_uart: Disable uart when fifo_fill not used

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Driver was failing when interrupt mode was enabled for given
instance but interrupt driven TX part was not used. In that
case uart was not disabled after sending a byte which resulted
in continuous interrupt triggering. Added check for
fifo_fill_lock which is set when uart_fifo_fill is used.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
This commit is contained in:
Krzysztof Chruscinski 2021-05-10 14:19:11 +02:00 • committed by Carles Cufí
commit 485f593bb7
1 changed files with 1 additions and 1 deletions
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drivers/serial/uart_nrfx_uarte.c
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@ -241,7 +241,7 @@ static void uarte_nrfx_isr_int(void *arg)
#ifdef UARTE_INTERRUPT_DRIVEN #ifdef UARTE_INTERRUPT_DRIVEN
struct uarte_nrfx_data *data = get_dev_data(dev); struct uarte_nrfx_data *data = get_dev_data(dev);
if (!data->int_driven) if (!data->int_driven || data->int_driven->fifo_fill_lock == 0)
#endif #endif
{ {
nrf_uarte_int_disable(uarte, nrf_uarte_int_disable(uarte,