linux-kernel - [PATCH v6 4/4] arm64: boot: dts: qcom: sm8150: Enable dynamic TX FIFO resize logic

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Date:   Thu, 21 Jan 2021 20:01:40 -0800
From:   Wesley Cheng <wcheng@...eaurora.org>
To:     balbi@...nel.org, gregkh@...uxfoundation.org, robh+dt@...nel.org,
        agross@...nel.org, bjorn.andersson@...aro.org
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        peter.chen@....com, jackp@...eaurora.org,
        Wesley Cheng <wcheng@...eaurora.org>
Subject: [PATCH v6 4/4] arm64: boot: dts: qcom: sm8150: Enable dynamic TX FIFO resize logic

Enable the flexible TX FIFO resize logic on SM8150.  Using a larger TX FIFO
SZ can help account for situations when system latency is greater than the
USB bus transmission latency.

Signed-off-by: Wesley Cheng <wcheng@...eaurora.org>
---
 arch/arm64/boot/dts/qcom/sm8150.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8150.dtsi b/arch/arm64/boot/dts/qcom/sm8150.dtsi
index 5270bda..c7706f4 100644
--- a/arch/arm64/boot/dts/qcom/sm8150.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8150.dtsi
@@ -1569,6 +1569,7 @@
 				iommus = <&apps_smmu 0x140 0>;
 				snps,dis_u2_susphy_quirk;
 				snps,dis_enblslpm_quirk;
+				tx-fifo-resize;
 				phys = <&usb_1_hsphy>, <&usb_1_ssphy>;
 				phy-names = "usb2-phy", "usb3-phy";
 			};
-- 
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