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Message-ID: <20231227060316.8539-3-chunfeng.yun@mediatek.com> Date: Wed, 27 Dec 2023 14:03:16 +0800 From: Chunfeng Yun <chunfeng.yun@...iatek.com> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Rob Herring <robh+dt@...nel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com> CC: Chunfeng Yun <chunfeng.yun@...iatek.com>, Conor Dooley <conor+dt@...nel.org>, Matthias Brugger <matthias.bgg@...il.com>, "Mathias Nyman" <mathias.nyman@...el.com>, <linux-usb@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-mediatek@...ts.infradead.org>, <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Eddie Hung <eddie.hung@...iatek.com>, Macpaul Lin <macpaul.lin@...iatek.com> Subject: [PATCH v4 3/3] arm64: dts: mediatek: mt8195: Add 'rx-fifo-depth' for cherry Add the quirk property "rx-fifo-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. Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com> Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com> --- v4: change property value, and put before supply add reviewed-by Angelo v3: change value according to binding v2: use 'rx-fifo-depth' property --- 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..00fcde60300e 100644 --- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi @@ -1183,6 +1183,7 @@ &xhci0 { status = "okay"; + rx-fifo-depth = <3072>; vusb33-supply = <&mt6359_vusb_ldo_reg>; vbus-supply = <&usb_vbus>; }; @@ -1190,6 +1191,7 @@ &xhci1 { status = "okay"; + rx-fifo-depth = <3072>; vusb33-supply = <&mt6359_vusb_ldo_reg>; vbus-supply = <&usb_vbus>; }; -- 2.18.0
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