[nrf fromlist] drivers: serial: uart_async_to_irq: Fix uart_irq_tx_complete

nordic-krch · nordic-krch · commit b0e682920929 · 2024-10-28T06:46:43.000+01:00
uart_irq_tx_complete is implemented by z_uart_async_to_irq_irq_tx_ready which changed recently (5bd53b6) to return positive value that may be bigger than 1. uart_irq_tx_complete shall not return value bigger than 1. Upstream PR: zephyrproject-rtos/zephyr#80355 Signed-off-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no>
diff --git a/drivers/serial/uart_async_to_irq.c b/drivers/serial/uart_async_to_irq.c
@@ -284,7 +284,7 @@ void z_uart_async_to_irq_irq_rx_disable(const struct device *dev)
 /** Interrupt driven transfer complete function */
 int z_uart_async_to_irq_irq_tx_complete(const struct device *dev)
 {
-	return z_uart_async_to_irq_irq_tx_ready(dev);
+	return z_uart_async_to_irq_irq_tx_ready(dev) > 0 ? 1 : 0;
 }
 
 /** Interrupt driven receiver ready function */

Original file line number	Diff line number	Diff line change
`@@ -284,7 +284,7 @@ void z_uart_async_to_irq_irq_rx_disable(const struct device *dev)`
`284`	`284`	`/** Interrupt driven transfer complete function */`
`285`	`285`	`int z_uart_async_to_irq_irq_tx_complete(const struct device *dev)`
`286`	`286`	`{`
`287`		`- return z_uart_async_to_irq_irq_tx_ready(dev);`
	`287`	`+ return z_uart_async_to_irq_irq_tx_ready(dev) > 0 ? 1 : 0;`
`288`	`288`	`}`
`289`	`289`
`290`	`290`	`/** Interrupt driven receiver ready function */`