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drivers: serial: uart_nrfx_uarte2: Prevent TX in suspend mode

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Do not transmit if the device is in suspend mode.

Signed-off-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no>
This commit is contained in:
Krzysztof Chruściński 2024-04-08 17:21:42 +02:00 • committed by Alberto Escolar
commit 5a41aa2614
1 changed files with 18 additions and 0 deletions
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18
drivers/serial/uart_nrfx_uarte2.c
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@ -385,6 +385,15 @@ static int api_tx(const struct device *dev, const uint8_t *buf, size_t len, int3
nrfx_err_t err;
bool hwfc;
#if CONFIG_PM_DEVICE
enum pm_device_state state;
(void)pm_device_state_get(dev, &state);
if (state != PM_DEVICE_STATE_ACTIVE) {
return -ECANCELED;
}
#endif
#if CONFIG_UART_USE_RUNTIME_CONFIGURE
hwfc = data->uart_config.flow_ctrl == UART_CFG_FLOW_CTRL_RTS_CTS;
#else
@ -575,6 +584,15 @@ static void api_poll_out(const struct device *dev, unsigned char out_char)
const nrfx_uarte_t *nrfx_dev = get_nrfx_dev(dev);
nrfx_err_t err;
#if CONFIG_PM_DEVICE
enum pm_device_state state;
(void)pm_device_state_get(dev, &state);
if (state != PM_DEVICE_STATE_ACTIVE) {
return;
}
#endif
do {
/* When runtime PM is used we cannot use early return because then
* we have no information when UART is actually done with the