From nobody Mon Feb 9 08:05:13 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4497AEB64DC for ; Tue, 11 Jul 2023 10:59:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231393AbjGKK7c (ORCPT ); Tue, 11 Jul 2023 06:59:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38058 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231345AbjGKK71 (ORCPT ); Tue, 11 Jul 2023 06:59:27 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 05CD0E55; Tue, 11 Jul 2023 03:59:25 -0700 (PDT) Received: from pps.filterd (m0279864.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36BAMFS3004738; Tue, 11 Jul 2023 10:59:22 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id; s=qcppdkim1; bh=Arf4vm6RhaE0vAgoXKr4ABZcfNQlS9/Cz4o9CeH6l7I=; b=UnA/XQoU/3Mwm/nq0oQhB+ECEik3FNrakCIC1xu28fqLHL0feEQAeWOsPilkudvvTyAq sLfyjpyZKZ8cWsMStUm0wRvVysa+bz/ie3EVWDzi60Zo3AG6g325E7FWlhdlOVhNM35E 6CHLaiNWQ88KU8F/9Qsr3DVm0bXtTi4+wLcrIF9BmWD7r+/USu3GasaVvJXQ6pykOIMP BOd08PXX2HtjNk2vjyZL/pOrKqOP+J2gIcAqLARD0vksHpFgk4nlr3ZMsL1tMZco/Gas VC1frngTVPQjV7KUeRMgyPl2QCJpB0uEMPuOnFz3sI9ZUelQkwwpQFjKT6c5Eev4cb7m PA== Received: from apblrppmta02.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3rs59181t6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 11 Jul 2023 10:59:22 +0000 Received: from pps.filterd (APBLRPPMTA02.qualcomm.com [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 36BAxIX2010695; Tue, 11 Jul 2023 10:59:18 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTPS id 3rq0vm3cat-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 11 Jul 2023 10:59:18 +0000 Received: from APBLRPPMTA02.qualcomm.com (APBLRPPMTA02.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 36BAxIEB010690; Tue, 11 Jul 2023 10:59:18 GMT Received: from hu-maiyas-hyd.qualcomm.com (hu-narepall-hyd.qualcomm.com [10.213.107.70]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTP id 36BAxHx9010689; Tue, 11 Jul 2023 10:59:18 +0000 Received: by hu-maiyas-hyd.qualcomm.com (Postfix, from userid 3995025) id 68139500995; Tue, 11 Jul 2023 16:29:17 +0530 (+0530) From: Naveen Kumar Goud Arepalli To: quic_nitirawa@quicinc.com, agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Naveen Kumar Goud Arepalli Subject: [PATCH V2] arm64: dts: qcom: sa8775p-ride: Update L4C parameters Date: Tue, 11 Jul 2023 16:29:14 +0530 Message-Id: <20230711105915.30581-1-quic_narepall@quicinc.com> X-Mailer: git-send-email 2.17.1 X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: Jcsf8D-Fx8ljWZ8t8uM09iH5z0p3nj7z X-Proofpoint-ORIG-GUID: Jcsf8D-Fx8ljWZ8t8uM09iH5z0p3nj7z X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-11_05,2023-07-11_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 suspectscore=0 spamscore=0 phishscore=0 priorityscore=1501 malwarescore=0 mlxlogscore=927 bulkscore=0 adultscore=0 impostorscore=0 clxscore=1011 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2307110099 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" L4c is the supply for UFS vccq, As per UFS spec range of vccq is 1.14V to 1.26V, There are stability issues when operating at marginal voltage. Hence configure the min and max vccq voltages to 1.2V. Signed-off-by: Naveen Kumar Goud Arepalli Acked-by: Konrad Dybcio --- arch/arm64/boot/dts/qcom/sa8775p-ride.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts b/arch/arm64/boot/dt= s/qcom/sa8775p-ride.dts index ab767cfa51ff..26f5a4e0ffed 100644 --- a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts +++ b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts @@ -153,8 +153,8 @@ =20 vreg_l4c: ldo4 { regulator-name =3D "vreg_l4c"; - regulator-min-microvolt =3D <1100000>; - regulator-max-microvolt =3D <1300000>; + regulator-min-microvolt =3D <1200000>; + regulator-max-microvolt =3D <1200000>; regulator-initial-mode =3D ; /* * FIXME: This should have regulator-allow-set-load but --=20 2.17.1