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Thu, 16 May 2024 05:52:29 GMT Received: from [10.214.67.128] (10.80.80.8) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Wed, 15 May 2024 22:52:25 -0700 Message-ID: <1c214d8b-9c59-7266-4c80-4b548ad6c7f9@quicinc.com> Date: Thu, 16 May 2024 11:22:15 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.5.1 Subject: Re: [PATCH] arm64: dts: qcom: qdu/qru1000-idp: Fix the voltage setting To: Krzysztof Kozlowski , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley CC: Melody Olvera , , , References: <20240514131038.28036-1-quic_kbajaj@quicinc.com> <45e0aee9-87d5-434f-8ffe-d3270def0f72@kernel.org> Content-Language: en-US From: Komal Bajaj In-Reply-To: <45e0aee9-87d5-434f-8ffe-d3270def0f72@kernel.org> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: 5WAsNb2OR303Ri9Gh11NWI1ZjBV1Nocm X-Proofpoint-GUID: 5WAsNb2OR303Ri9Gh11NWI1ZjBV1Nocm X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.11.176.26 definitions=2024-05-16_02,2024-05-15_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 spamscore=0 impostorscore=0 malwarescore=0 phishscore=0 bulkscore=0 suspectscore=0 mlxscore=0 clxscore=1011 priorityscore=1501 mlxlogscore=689 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2405010000 definitions=main-2405160039 On 5/14/2024 6:57 PM, Krzysztof Kozlowski wrote: > On 14/05/2024 15:10, Komal Bajaj wrote: >> Fixing the regulator voltages for qdu/qru1000 idp boards. >> In particular - >> - smps4 is 1.574V min and 2.04V max >> - smps5 is 1.2V min and 1.4V max >> - smps6 is 0.382V min and 1.12V max > > Wait, why? This looks, at least partially, you are changing from fixed > voltage choice to full range, without clear explanation. > When we started using one of these regulators for USB enablement as sent in the patch series [1], we saw a sudden reboot. After adding more debug logs, came to know the configuration for smps5 was incorrect. Therefore, cross verified the configurations for all the regulators and got to know that these are incorrectly configured. This fixes some manual errors introduced in the initial patch (mentioned in fixes tag). [1] https://lore.kernel.org/linux-arm-msm/20240502090326.21489-1-quic_kbajaj@quicinc.com/ Thanks, Komal. >> - smps8 is fixed at 0.752V > > >> >> Fixes: d1f2cfe2f669 ("arm64: dts: qcom: Add base QDU1000/QRU1000 IDP DTs") >> Signed-off-by: Komal Bajaj > > Best regards, > Krzysztof >