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drivers: serial: b91: irq_tx_ready update to check TX IRQ

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Updated b91_irq_tx_ready API to check TX IRQ enabled.

Signed-off-by: Yuriy Vynnychek <yura.vynnychek@telink-semi.com>
This commit is contained in:
Yuriy Vynnychek 2021-10-08 15:48:44 +03:00 • committed by Christopher Friedt
commit 1242f5129d
1 changed files with 2 additions and 1 deletions
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3
drivers/serial/uart_b91.c
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@ -427,7 +427,8 @@ static int uart_b91_irq_tx_ready(const struct device *dev)
{ {
volatile struct uart_b91_t *uart = GET_UART(dev); volatile struct uart_b91_t *uart = GET_UART(dev);
return (uart_b91_get_tx_bufcnt(uart) < UART_TX_BUF_CNT) ? 1 : 0; return ((uart_b91_get_tx_bufcnt(uart) < UART_TX_BUF_CNT) &&
((uart->ctrl0 & UART_TX_IRQ_MASK) != 0)) ? 1 : 0;
} }
/* API implementation: irq_tx_complete */ /* API implementation: irq_tx_complete */