drivers: serial: sf32lb: add uart dma support

ck-telecom · ck-telecom · commit 670033dcae0d · 2025-10-18T13:19:48.000+08:00
add sf32lb52x uart dma support

Signed-off-by: Qingsong Gou &lt;gouqs@hotmail.com&gt;
diff --git a/boards/sifli/sf32lb52_devkit_lcd/sf32lb52_devkit_lcd.dts b/boards/sifli/sf32lb52_devkit_lcd/sf32lb52_devkit_lcd.dts
@@ -9,7 +9,7 @@
 #include <sifli/sf32lb52x-ram012.dtsi>
 #include <zephyr/dt-bindings/gpio/gpio.h>
 #include <zephyr/dt-bindings/input/input-event-codes.h>
-
+#include <zephyr/dt-bindings/dma/sf32lb52x-dma.h>
 #include "sf32lb52_devkit_lcd-pinctrl.dtsi"
 
 / {
diff --git a/drivers/serial/Kconfig.sf32lb b/drivers/serial/Kconfig.sf32lb
@@ -7,6 +7,8 @@ config UART_SF32LB
 	depends on DT_HAS_SIFLI_SF32LB_USART_ENABLED
 	select SERIAL_HAS_DRIVER
 	select SERIAL_SUPPORT_INTERRUPT
+	select SERIAL_SUPPORT_ASYNC if DT_HAS_SIFLI_SF32LB_DMAC_ENABLED
+	select DMA if UART_ASYNC_API
 	select PINCTRL
 	select CLOCK_CONTROL
 	help
diff --git a/drivers/serial/uart_sf32lb.c b/drivers/serial/uart_sf32lb.c
