From: Chen-Yu Tsai <wenst@chromium.org>
Date: Thu, 30 Apr 2026 12:07:24 +0000 (+0800)
Subject: arm64: dts: mediatek: mt8192-asurada: Move PCIe DMA bounce buffer to host
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=533275a4b5240a2bf2c592bd4536560388306d26;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: mediatek: mt8192-asurada: Move PCIe DMA bounce buffer to host

The DMA bounce buffer is attached to the PCIe host controller, i.e. all
PCIe DMA transfers should use it.

Move it from the PCIe (WiFi) device node down to the PCIe host
controller node.

Fixes: 0dca9f0b3e63 ("arm64: dts: mediatek: asurada: Enable PCIe and add WiFi")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---

diff --git a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
index eadf1b2d156f2..95d4db2b79794 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi
@@ -525,6 +525,7 @@
 &pcie {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pcie_pins>;
+	memory-region = <&wifi_restricted_dma_region>;
 
 	pcie0: pcie@0,0 {
 		device_type = "pci";
@@ -539,7 +540,6 @@
 		wifi: wifi@0,0 {
 			reg = <0x10000 0 0 0 0x100000>,
 			      <0x10000 0 0x100000 0 0x100000>;
-			memory-region = <&wifi_restricted_dma_region>;
 		};
 	};
 };