[PATCH 3/3] arm64: dts: mediatek: mt8195: Add mediatek,rxfifo-depth to cherry

Chunfeng Yun chunfeng.yun at mediatek.com
Tue Dec 12 22:35:43 PST 2023


Add the quirk property "mediatek,rxfifo-depth" to work around Gen1 isoc-in
transfer issue which send out unexpected ACK even after device already
finished the burst transfer with a short patcket, specially for a 4K
camera device.

Signed-off-by: Chunfeng Yun <chunfeng.yun at mediatek.com>
---
 arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
index dd5b89b73190..2f2133931846 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
@@ -1185,6 +1185,7 @@ &xhci0 {
 
 	vusb33-supply = <&mt6359_vusb_ldo_reg>;
 	vbus-supply = <&usb_vbus>;
+	mediatek,rxfifo-depth;
 };
 
 &xhci1 {
@@ -1192,6 +1193,7 @@ &xhci1 {
 
 	vusb33-supply = <&mt6359_vusb_ldo_reg>;
 	vbus-supply = <&usb_vbus>;
+	mediatek,rxfifo-depth;
 };
 
 &xhci2 {
-- 
2.25.1




More information about the linux-arm-kernel mailing list