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drivers: serial: nrf_uarte: Add missing check for async API

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uarte_enable function was not supporting a case when async
api was enabled but instance did not use it. Added runtime
check for async instance presence.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
This commit is contained in:
Krzysztof Chruscinski 2021-05-10 14:57:42 +02:00 • committed by Carles Cufí
commit 1ddfea32bf
1 changed files with 10 additions and 7 deletions
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17
drivers/serial/uart_nrfx_uarte.c
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@ -514,16 +514,19 @@ static void uarte_enable(const struct device *dev, uint32_t mask)
{
#ifdef CONFIG_UART_ASYNC_API
struct uarte_nrfx_data *data = get_dev_data(dev);
bool disabled = data->async->low_power_mask == 0;
data->async->low_power_mask |= mask;
if (hw_rx_counting_enabled(data) && disabled) {
const nrfx_timer_t *timer = &get_dev_config(dev)->timer;
if (data->async) {
bool disabled = data->async->low_power_mask == 0;
nrfx_timer_enable(timer);
data->async->low_power_mask |= mask;
if (hw_rx_counting_enabled(data) && disabled) {
const nrfx_timer_t *timer = &get_dev_config(dev)->timer;
for (int i = 0; i < data->async->rx_flush_cnt; i++) {
nrfx_timer_increment(timer);
nrfx_timer_enable(timer);
for (int i = 0; i < data->async->rx_flush_cnt; i++) {
nrfx_timer_increment(timer);
}
}
}
#endif