From patchwork Thu Feb 6 11:15:43 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akash Kumar X-Patchwork-Id: 862935 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 76617231A4C; Thu, 6 Feb 2025 11:17:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738840649; cv=none; b=IveHhfvTJzVthVqjNfesg+7yJ1AOpsZ+VzKXMOoUvcuLkfQOPSHDlBOO4iYs2fCsUOW0JhifIcLf6XAKU9p57MYuCOEn2D+dezQJqB+I91TNAFRs8IyV8xbLwT7HHzywFTc6HF+akHcvZDbCJyu0U7eXb1WWc6R7J+FOLJ9Ev+M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738840649; c=relaxed/simple; bh=9L8v/jl6HSIO/6Dv+m2eRFhdPWznBdGxxI8lE91xy+E=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Lbon55AzvpGWufdMV8qDQLcKhb2UIL0FPfRjICnNgTYHaaRdd4GysQVvaesqdDlmIglFYe1WH6efdog6FAy/ExIlnMiTmbMB9CgEnj6KoJ/eJ2XzXI6plvXtIZObzcjNLeBzbLnKGC5zpf486wrGWP9xT8jfn09of4qY2UZIGqk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=K8RnFg9n; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="K8RnFg9n" Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 5169dqvs022537; Thu, 6 Feb 2025 11:17:24 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to; s=qcppdkim1; bh=GZWmSmi1VtT9mCKl6G3K8hDw bOPO1HBGZzHKdkg+pxo=; b=K8RnFg9nWnZNGFIw8+dMvGttjPOuUw+24LPlwQKh MU/aDZEIX17Oi9vouOI4mXag6GT+MmN/5PCoE7/tmjNb8h09mXLLSxmXHYHMR++X N/+HE0Zte5EGqiBotDe1rR8VSv+ktuYxIthKlRUTw9PM4Oj+fxwVjy9BwXv7PJxM R5pl+n1PjbDRN16UFPPeQVM00F3kyUpTWj9G3ckuFj/juv2FppkkH6+1VV/xjlLW 4w3pBJfnL8QNR7TurIaB9J6cpVvI3MtVsPX7CUUuWtGeHWuy98T6+zpIYeCBmsqq A8y0ntslEZmg0XnVreGM9qsUPsj2gGAJP8qtLtPmDRjqTg== Received: from nasanppmta03.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 44mtn7g7kt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 06 Feb 2025 11:17:24 +0000 (GMT) Received: from nasanex01a.na.qualcomm.com (nasanex01a.na.qualcomm.com [10.52.223.231]) by NASANPPMTA03.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 516BHNKw014514 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 6 Feb 2025 11:17:23 GMT Received: from hu-akakum-hyd.qualcomm.com (10.80.80.8) by nasanex01a.na.qualcomm.com (10.52.223.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Thu, 6 Feb 2025 03:17:19 -0800 From: Akash Kumar To: Thinh Nguyen , Greg Kroah-Hartman , Jack Pham , , Wesley Cheng CC: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , "Vijayavardhan Vennapusa" , , , Akash Kumar Subject: [PATCH 18/18] arm64: dts: qcom: sc8180x: Enable high bandwidth for hs isoc eps Date: Thu, 6 Feb 2025 16:45:43 +0530 Message-ID: <20250206111543.17392-19-quic_akakum@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20250206111543.17392-1-quic_akakum@quicinc.com> References: <20250206111543.17392-1-quic_akakum@quicinc.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nasanex01a.na.qualcomm.com (10.52.223.231) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: Fiapd-lVlyX6-irdFofSnmoPr1q9Tttw X-Proofpoint-ORIG-GUID: Fiapd-lVlyX6-irdFofSnmoPr1q9Tttw X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-02-06_03,2025-02-05_03,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 bulkscore=0 malwarescore=0 clxscore=1015 priorityscore=1501 mlxlogscore=989 impostorscore=0 lowpriorityscore=0 phishscore=0 suspectscore=0 adultscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2501170000 definitions=main-2502060092 It is observed while testing multiple audio devices, a glitch is observed during testing. As per dwc datasheet,By default, HC reserves 80% of the bandwidth for periodic EPs. Add quirk to set GUCTL BIT 16 to accommodate higher bandwidth for 2 isoc eps. If this bit is set, the bandwidth is relaxed to 85% to accommodate two high speed, high bandwidth ISOC EPs. USB 2.0 required 80% bandwidth allocated for ISOC traffic. If two High-bandwidth ISOC devices (HD Webcams) are connected, and if each requires 1024-bytes X 3 packets per Micro-Frame, then the bandwidth required is around 82%. If this bit is set, then it is possible to connect two Webcams of 1024bytes X 3 paylod per Micro-Frame each. Otherwise, you may have to reduce the resolution of the Webcams. This bit is valid in Host and DRD configuration and is used in host mode operation only. USe this quirk to set bit for host mode uvc uac usecases where two isoc eps are used and flicker is seen. Signed-off-by: Akash Kumar --- arch/arm64/boot/dts/qcom/sc8180x.dtsi | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sc8180x.dtsi b/arch/arm64/boot/dts/qcom/sc8180x.dtsi index 28693a3bfc7f..fafc907efa84 100644 --- a/arch/arm64/boot/dts/qcom/sc8180x.dtsi +++ b/arch/arm64/boot/dts/qcom/sc8180x.dtsi @@ -2764,6 +2764,7 @@ snps,dis_enblslpm_quirk; snps,dis-u1-entry-quirk; snps,dis-u2-entry-quirk; + snps,dwc3_guctl_resbwhseps_quirk; phys = <&usb_mp_hsphy0>, <&usb_mp_qmpphy0>, <&usb_mp_hsphy1>, @@ -2829,6 +2830,7 @@ snps,dis_enblslpm_quirk; snps,dis-u1-entry-quirk; snps,dis-u2-entry-quirk; + snps,dwc3_guctl_resbwhseps_quirk; phys = <&usb_prim_hsphy>, <&usb_prim_qmpphy QMP_USB43DP_USB3_PHY>; phy-names = "usb2-phy", "usb3-phy"; @@ -2908,6 +2910,7 @@ snps,dis_enblslpm_quirk; snps,dis-u1-entry-quirk; snps,dis-u2-entry-quirk; + snps,dwc3_guctl_resbwhseps_quirk; phys = <&usb_sec_hsphy>, <&usb_sec_qmpphy QMP_USB43DP_USB3_PHY>; phy-names = "usb2-phy", "usb3-phy";