From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>
Cc: Chunfeng Yun <chunfeng.yun@mediatek.com>,
Conor Dooley <conor+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Mathias Nyman <mathias.nyman@intel.com>,
<linux-usb@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Eddie Hung <eddie.hung@mediatek.com>,
Macpaul Lin <macpaul.lin@mediatek.com>
Subject: [PATCH v5 3/3] arm64: dts: mediatek: mt8195: Add 'rx-fifo-depth' for cherry
Date: Thu, 4 Jan 2024 14:16:40 +0800 [thread overview]
Message-ID: <20240104061640.7335-3-chunfeng.yun@mediatek.com> (raw)
In-Reply-To: <20240104061640.7335-1-chunfeng.yun@mediatek.com>
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@collabora.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
v5: no changes
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
prev parent reply other threads:[~2024-01-04 6:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-04 6:16 [PATCH v5 1/3] dt-bindings: usb: mtk-xhci: add a property for Gen1 isoc-in transfer issue Chunfeng Yun
2024-01-04 6:16 ` [PATCH v5 2/3] usb: xhci-mtk: fix a short packet issue of gen1 isoc-in transfer Chunfeng Yun
2024-01-04 6:16 ` Chunfeng Yun [this message]
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