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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-31e6628b1fbsm3127948a91.12.2025.07.25.02.36.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 25 Jul 2025 02:36:41 -0700 (PDT) Message-ID: <20829683-b2ce-4aaa-beb4-4ca5774350a2@oss.qualcomm.com> Date: Fri, 25 Jul 2025 17:36:37 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 4/4] arm64: dts: qcom: Add base HAMOA-IOT-EVK board To: Krzysztof Kozlowski , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250724-hamoa_initial-v2-0-91b00c882d11@oss.qualcomm.com> <20250724-hamoa_initial-v2-4-91b00c882d11@oss.qualcomm.com> <3f03b1c0-94a2-4081-adb0-aac4f42ee430@kernel.org> Content-Language: en-US From: Yijie Yang In-Reply-To: <3f03b1c0-94a2-4081-adb0-aac4f42ee430@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: hrYn5BB6gghDLSUsvGXzH6PncnXFeFLd X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNzI1MDA4MSBTYWx0ZWRfX9UrLtbYTg/8+ GzRtn8vEw58L1/jqRhaWRZ4RJNThRjzo5eCHXZj/p39/MlgCAjr8+Nb0oORmqogf4juHKQ7SraP dDoa/pKz/2GexslbkDLSjgSPTuOcNulZstMc8MknDTmRZ/5zRnAqciQwK/7gC1u3nWVrt5ZL6Bf rJg1TkWde9kxAd1IetWJoMMnV6ChqIJxG17leey2ri4VOk6bXa5uC+2uPs8Wftj+rUQ1Go0lCa+ DH5SvW0hRdDNBTwXA2gGDB8C2Xmfi8ajb8jT4g0PTEMmdwzLig5LWW34gHS3pENqXv+MCMupQI5 WQbqOb/04iKvhLJ03Xb0FoxwHoqfmjcJsC+VEtxBILQ4Lr1ZM39mYpbvrtE1tWohMaVA0wvTNrr 3Y0loNquJCjMIMVBItc+0ARJv6XkPCakJc2J/oJJSpyfDCsAsJa/pWiRqdfAox6ETK3lMoqk X-Proofpoint-GUID: hrYn5BB6gghDLSUsvGXzH6PncnXFeFLd X-Authority-Analysis: v=2.4 cv=S8bZwJsP c=1 sm=1 tr=0 ts=6883502c cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=Wb1JkmetP80A:10 a=kD3CWL0wyOYqigJ9jOwA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=zgiPjhLxNE0A:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-07-25_02,2025-07-24_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 lowpriorityscore=0 mlxlogscore=999 bulkscore=0 impostorscore=0 spamscore=0 malwarescore=0 adultscore=0 suspectscore=0 phishscore=0 priorityscore=1501 mlxscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505280000 definitions=main-2507250081 On 2025-07-25 17:18, Krzysztof Kozlowski wrote: > On 25/07/2025 11:01, Yijie Yang wrote: >> >> wcn7850_pmu: wcn7850-pmu@xxxx { >> compatible = "qcom,wcn7850-pmu"; >> reg = <0x...>; >> vdd-supply = <&dummy_reg>; >> vddaon-supply = <&dummy_reg>; >> vdddig-supply = <&dummy_reg>; >> vddrfa1p2-supply = <&dummy_reg>; >> vddrfa1p8-supply = <&dummy_reg>; >> }; >> This approach ensures the DTB passes schema checks while keeping the >> implementation clean and consistent with the actual platform setup. Do >> you think this is appropriate? > > No. There is no dummy regulator in the hardware, so you cannot add it to > the DTS. What should I do in this case? Is it acceptable to deviate from the dt-binding rules due to differences in firmware behavior? Otherwise, I’ll need to revert to the first version, leave a TODO in the DTS, and wait for someone to properly model the M.2 card. > > Best regards, > Krzysztof -- Best Regards, Yijie