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Thu, 4 Jul 2024 15:29:18 GMT Received: from hu-kriskura-hyd.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Thu, 4 Jul 2024 08:29:12 -0700 From: Krishna Kurapati To: Krzysztof Kozlowski , Rob Herring , Bjorn Andersson , Konrad Dybcio , Conor Dooley , Baruch Siach , Kathiravan T , "Sivaprakash Murugesan" , Andy Gross , Jeffrey Hugo , Douglas Anderson , Stephen Boyd , Iskren Chernev , AngeloGioacchino Del Regno , Vivek Gautam CC: , , , , , Krishna Kurapati , Subject: [PATCH 2/8] arm64: dts: ipq8074: Disable SS instance in Parkmode for USB Date: Thu, 4 Jul 2024 20:58:42 +0530 Message-ID: <20240704152848.3380602-3-quic_kriskura@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240704152848.3380602-1-quic_kriskura@quicinc.com> References: <20240704152848.3380602-1-quic_kriskura@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: kJOraBwZ4wJZBNsKk7HKGsRrE7n7bahF X-Proofpoint-ORIG-GUID: kJOraBwZ4wJZBNsKk7HKGsRrE7n7bahF X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-07-04_10,2024-07-03_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 malwarescore=0 phishscore=0 impostorscore=0 priorityscore=1501 mlxscore=0 suspectscore=0 bulkscore=0 adultscore=0 lowpriorityscore=0 clxscore=1015 mlxlogscore=462 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2406140001 definitions=main-2407040110 For Gen-1 targets like IPQ8074, it is seen that stressing out the controller in host mode results in HC died error: xhci-hcd.12.auto: xHCI host not responding to stop endpoint command xhci-hcd.12.auto: xHCI host controller not responding, assume dead xhci-hcd.12.auto: HC died; cleaning up And at this instant only restarting the host mode fixes it. Disable SuperSpeed instance in park mode for IPQ8074 to mitigate this issue. Cc: Fixes: 5e09bc51d07b ("arm64: dts: ipq8074: enable USB support") Signed-off-by: Krishna Kurapati --- arch/arm64/boot/dts/qcom/ipq8074.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/ipq8074.dtsi b/arch/arm64/boot/dts/qcom/ipq8074.dtsi index 92682d3c9478..284a4553070f 100644 --- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi @@ -666,6 +666,7 @@ dwc_0: usb@8a00000 { interrupts = ; phys = <&qusb_phy_0>, <&ssphy_0>; phy-names = "usb2-phy", "usb3-phy"; + snps,parkmode-disable-ss-quirk; snps,is-utmi-l1-suspend; snps,hird-threshold = /bits/ 8 <0x0>; snps,dis_u2_susphy_quirk; @@ -715,6 +716,7 @@ dwc_1: usb@8c00000 { interrupts = ; phys = <&qusb_phy_1>, <&ssphy_1>; phy-names = "usb2-phy", "usb3-phy"; + snps,parkmode-disable-ss-quirk; snps,is-utmi-l1-suspend; snps,hird-threshold = /bits/ 8 <0x0>; snps,dis_u2_susphy_quirk;