[PATCH 15/16] ARM: dts: stm32: keep uart4 behavior on stm32mp15xx-dhcom-som

From: Erwan Le Ray
Date: Thu Feb 03 2022 - 12:16:40 EST


DMA configuration is added to uart nodes in stm32mp15x device tree.
Delete uart4 DMA property in stm32mp15xx-dhcom-som board device tree
to keep console in irq mode, as DMA support for console has been
removed from the driver by commit e359b4411c28 ("serial: stm32: fix
threaded interrupt handling").

Signed-off-by: Erwan Le Ray <erwan.leray@xxxxxxxxxxx>

diff --git a/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi b/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi
index 8c41f819f776..3cd729e29699 100644
--- a/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi
+++ b/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi
@@ -521,5 +521,7 @@
&uart4 {
pinctrl-names = "default";
pinctrl-0 = <&uart4_pins_a>;
+ /delete-property/dmas;
+ /delete-property/dma-names;
status = "okay";
};
--
2.17.1