From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 03F8E442386 for ; Tue, 18 Aug 2026 08:59:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787043580; cv=none; b=PLnkaJl2TOveWgjqAK8YMO50B49JAXuOJNldV0QmRxJpzNZ46kRvok5kUoaw4hU5d7JuEl7lAmujeqzvtH9+gvJ1L9CQu65sABkbc3ZBoeTtYDB4XZAVXxYaekkCBtNlJxc0lrfANd0ZHI26P/GqScjClt7gs2zva74DotyrsCI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787043580; c=relaxed/simple; bh=+th5XjfhfCO809mA698u0VX7s1mNFanLjxHEGyT1xio=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=ohxke8lFTsEZObk6KWwfcOr5/YbcI1e/pAYOWexUUgyY7If0hmNZv3ug82yvFf5XKBItXGFhhPv0RNQpkaOYACBtSjPUP2+KqS1j4xVf2w3lcWVJRHIJ07WTLqvs2NFTFD4aFchVvFdZkkyWHiSMrpTbyiI5kXhjJVBaN7FilOg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=odJNddL6; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=PQAWiFKG; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="odJNddL6"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="PQAWiFKG" Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 67I8BL4n310076 for ; Tue, 18 Aug 2026 08:59:38 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= pUZh4V+xlLajL1iKhB/L1N6pUu9ZGTc+yAIjmI39q5A=; b=odJNddL6n3Yg84V/ V7dp51G8nLT/abdu4I4lBqhIab1eOjaky+vhaHVXKOa9Wn0wI3JyLXDAP2LMDO97 9xz/MMmkWSxgIAnNNn5ZQO+31NzCq2VR/sOHEWxhmwxU4Ykb019Uxh8Q+939IkvA BCy65w40wXYHSLmq0zVxe6YzJAyMgllnbph5RlrWzt2KawKiJOzFXLKX9nzho+h8 GEYxTtZNshjh1I67lYUqyvvXFGL3qTLBUrMma21YSJLAkQWEkWsXB8m1o8Kd5l2l 0CSLjWXJxfCjXa0Xaw693YZ5+vuuqHWAYNASoIAPSUiBa2F7Rj8bDdtcQ3ZMHDN9 ZdBHpA== Received: from mail-qk1-f200.google.com (mail-qk1-f200.google.com [209.85.222.200]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4g4fba9c8u-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Tue, 18 Aug 2026 08:59:38 +0000 (GMT) Received: by mail-qk1-f200.google.com with SMTP id af79cd13be357-930b81c13b0so31734585a.0 for ; Tue, 18 Aug 2026 01:59:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1787043577; x=1787648377; darn=vger.kernel.org; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:from:to:cc:subject:date:message-id:reply-to :content-type; bh=pUZh4V+xlLajL1iKhB/L1N6pUu9ZGTc+yAIjmI39q5A=; b=PQAWiFKGhJSzHN9P9sMsifBC3Fjp75ELhgJtggVF5/h0XqtgInAYD/YQVr5+vsth9E 4QzsK4XAsKDJfl3Mqtd7BCLvzZsHaz882nz6NmIuMhm9dIC+OIcQn79Iy6X3sK80vUTV mM/5B7T7nTu0eNWTzPQQIUsYLpuQ7qv8s/jpDKSL8gE6ZDn8xZvKS7ShPDvUEc77OzE4 pcg11G1DSp3n9GYZcxfs3t9akp4nMH6Eq0MnBycSVgtuiYDF7iU93IOp+iE56R7jTPR9 1ypsJsI88aS1lMznpIi25/c3itxsf3erBhG2CCkHhArc51VIxNNH+Grd6NvNy2o7bQPe d93A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1787043577; x=1787648377; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=pUZh4V+xlLajL1iKhB/L1N6pUu9ZGTc+yAIjmI39q5A=; b=MxzoVhukCDZKnqM8lIK+2GynMxVonivNbGKAOQQ4kSgbL5rLF1CK51Qh/jPK+uOaG7 hfHY33DC92kiOAacst6YoNbRUcyVdSAEyu0UuaVlerUWo75dfSZy9FOEZe+WSjIWSimF xDDOxVdmYuxY4MxY3vqWM1XR6p1tMm3HegXYw5uMxYXac6QWbQzSB0gyMChYkCjYXAPD Jknwi9DhpLKXClgP5adMByHRU70F3J1+IBdmK++S4KaXhEqbs6wczHMMH9VuhA5Y530b MT3fQwK21peJ42sJD2lc4JG5l+M+XT30tkaZ3tOM4AU9adQHiIgVZsAK0gdWDfn+t+Zx b5eg== X-Forwarded-Encrypted: i=1; AHgh+RrBP90Slf19p1rULfU52wgcvX/r3bBcwp1e4Vs/OqnBSTRoJXJuYEknpYVzmER7NCdXTh0DO8IpyDD5@vger.kernel.org X-Gm-Message-State: AOJu0YyBr0GQZYMilX10P83jTo/pveqkCPzshy7u2IdDG7oZY9TrVXc5 aUdbA+71G8ZLWUIc6n6D68pHabyaHzsxzdXrjhFKlNDUfDPwImHTKdRawyv1I8ronaXkeyhQafY v5igzbdSsgNrxvr88VGj+dFysGQOZKFWB5vU1Sh/uOPnG+jucKJ3g31PfLrNsUmTO X-Gm-Gg: AR+sD10YbK4EaZNOr/XHW2mX0UpfMZiel+WoSwlbMh+q9R5MctngemyJOtxWIEsT2k4 tdPaD1Ea73TWt/obVGxLxnJPyWA5J1+6WwOtYlSlmQf66nm+ujrkX2l1+nkdjt8bJfMw49omAg8 3dS+BsRZ/hOmjIf5zzhzNkeXGpNUoCM+dVuOamGsCkE5Xvv0ZdHG4gbyH8bDdFbZOS6w1Nq1CeT LAjPmCS5SRMgv+wKhm7b1d2lBczr3rbdgLoyuYzlOzLOZ9yqX3979yiLMlhoFqQd8PvHkp3h1zy G/MT6CfFPShByx2w/Y6P6ZjaTwiMZ/OesZngqcd1xBxk126XmpR+sgWwcQ2lD78FdwzKOH1gfmN /UFTj2JrsRB7DmEbo7d6zaP0Y X-Received: by 2002:a05:620a:a19:b0:936:f9a6:3813 with SMTP id af79cd13be357-936f9a6387emr613139685a.0.1787043577231; Tue, 18 Aug 2026 01:59:37 -0700 (PDT) X-Received: by 2002:a05:620a:a19:b0:936:f9a6:3813 with SMTP id af79cd13be357-936f9a6387emr613137785a.0.1787043576821; Tue, 18 Aug 2026 01:59:36 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c217fea2cdcsm154925766b.18.2026.08.18.01.59.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 18 Aug 2026 01:59:36 -0700 (PDT) Message-ID: Date: Tue, 18 Aug 2026 10:59:34 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 06/10] phy: qcom-ipq806x-usb: fix the PHY_PARAM_CTRL1 field masks To: Dmitry Baryshkov , Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Wesley Cheng , Vinod Koul , Neil Armstrong , Christian Marangi , Andy Gross , Bjorn Andersson , Konrad Dybcio Cc: linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org References: <20260810-msm8974-usb3-v1-0-1a47e1185524@oss.qualcomm.com> <20260810-msm8974-usb3-v1-6-1a47e1185524@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260810-msm8974-usb3-v1-6-1a47e1185524@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwODE4MDA2NSBTYWx0ZWRfXwtBKyLne1i3d kInPezFFy2Vk4tLzLlZTzeIk6v8Zn8TE5oX1pv7ICH2J5a0/KVcQ0HbJcBAFj3GGcfKPbOT6MyK 7tb8Nbyh8WjAnSnj0b0ChOkHJk262AY= X-Authority-Analysis: v=2.4 cv=VsITxe2n c=1 sm=1 tr=0 ts=6a841efa cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=IrLRzikX9qukkVrrmFsA:9 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 X-Proofpoint-ORIG-GUID: uXsospXV1c00GMFgEdHsUuuP-lZnD2CV X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODE4MDA2NSBTYWx0ZWRfX460JUmCuQPF4 x64g6zyw0nGR+ALJno+ZSHyfu7/NC4BhL7VUDh9Uw+GHVM+caohsK2ROWwF6ApG+QPLDnWJMRBi GXQeNzlme2AKvb3wQ3YUH6g8opxZXBzAyvtn3QkSKXv208ssDIqaxZy66Qpt01Bp0hRj6hkamnw 6LBfLL94FUiBc4oxm9zqn4lUsEBAyFNC0tQIU2Jz4iITAnAzHgMjMzKWdr7S6fgKit+h+ERfas3 r6eTVRykx6e8pxH1FIgq3M8JHKpNA8mSjYzR//fmRWLmwXk3qbzJem7KiVz2hZG0Pn5S8aScu/t WB/XjH/xAyZ54O/QdTV1lQMFRuZmLEzprCIrtVkH6pT7iz29up9cvGcMCcWEDRm2eI57qyXLQd2 4No467XuYH+CtTlOi7OeBjSnlq+hvGuSx4QmqPokv2UPT+7Sb0NwgKMVIv00+Q8G1dNAJxDfUcx PCS2OjfZfrao9lYVHjA== X-Proofpoint-GUID: uXsospXV1c00GMFgEdHsUuuP-lZnD2CV X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-17_04,2026-08-12_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 suspectscore=0 lowpriorityscore=0 malwarescore=0 clxscore=1015 bulkscore=0 priorityscore=1501 phishscore=0 adultscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608180065 On 8/10/26 1:42 PM, Dmitry Baryshkov wrote: > Each of the PHY_PARAM_CTRL1 field masks extends one bit below its > documented field: TX_FULL_SWING [26:20] is coded as GENMASK(26, 19), > TX_DEEMPH_6DB [19:14] as GENMASK(19, 13), TX_DEEMPH_3_5DB [13:8] as > GENMASK(13, 7) and LOS_BIAS [7:3] as GENMASK(7, 2). Also, the field > described as LOS_BIAS in reality is called LOS_LEVEL. FIELD_PREP against > these masks places every value one bit short of its field, so the > programmed swing/de-emphasis/LOS parameters land shifted and the > neighbouring fields are corrupted; the masked write-readback in the SS > PHY init reports 'write: ... to QSCRATCH: 4 FAILED'. > > Align the masks with the documented field positions. > > Fixes: ef19b117b834 ("phy: qualcomm: add qcom ipq806x dwc usb phy driver") > Assisted-by: Claude:claude-fable-5 > Signed-off-by: Dmitry Baryshkov > --- [...] > @@ -436,7 +440,8 @@ static int qcom_ipq806x_usb_ss_phy_init(struct phy *phy) > data |= PHY_PARAM_CTRL1_TX_FULL_SWING(0x6e) | > PHY_PARAM_CTRL1_TX_DEEMPH_6DB(0x20) | > PHY_PARAM_CTRL1_TX_DEEMPH_3_5DB(phy_dwc3->tx_deamp_3_5db) | > - PHY_PARAM_CTRL1_LOS_BIAS(0x9); > + PHY_PARAM_CTRL1_LOS_LEVEL(0x9) | > + PHY_PARAM_CTRL1_LOS_BIAS(0x0); lgtm except the POR value of BIAS is 2 on 8974 and 0 on ipq806x Konrad