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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b80426fc164sm3500122966b.30.2025.12.30.06.48.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 30 Dec 2025 06:48:46 -0800 (PST) Message-ID: <2afaece5-d670-4ce6-93fd-de111219255a@oss.qualcomm.com> Date: Tue, 30 Dec 2025 15:48:43 +0100 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 V1 4/4] arm64: dts: qcom: hamoa-iot-evk: Enable UFS To: Pradeep Pragallapati , vkoul@kernel.org, neil.armstrong@linaro.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, martin.petersen@oracle.com, andersson@kernel.org, konradybcio@kernel.org, taniya.das@oss.qualcomm.com, dmitry.baryshkov@oss.qualcomm.com Cc: linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, nitin.rawat@oss.qualcomm.com References: <20251229060642.2807165-1-pradeep.pragallapati@oss.qualcomm.com> <20251229060642.2807165-5-pradeep.pragallapati@oss.qualcomm.com> <80529f8d-8db0-4b3c-b79e-8d5a3004241e@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <80529f8d-8db0-4b3c-b79e-8d5a3004241e@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjMwMDEzMyBTYWx0ZWRfX8WbFyDSU5kBj vCLNAAQEPNIwGpR1fKdf4fIKei8bR5/JmVeSkHi1oCVm7SiPB6lTm7PqikDUr7+cllrKqcUODkW n8uBvxaZbx9UIE9M0WSSMWVDgyhZ24PmlByY0EN20IFp53L+5cakY0FNcqHeD9A6AfeEJ4W2Mqo sY/TrfCIZzQoWNGa6SQFAs5eEoxd3SoKdIZPK8no+GNkjgRH9l4xtAK1fTAteuLJKPEV4EKmMsr pUwHDxVa5F3j1O6Oij3h9c2eA1EmQWisHdk6F2MKK9GBhnh3j6qRg3Gux86AVhdq4nG3JrlXU82 986eCUyhHcokudt8TgmgASHVF0WIsIIigqHwT8vlszs3KauTuH6v/cVVAX/Ih64SPWDYmEGcx6n DbuhLSZ1oWTFvvlIkYCw1d++QLd3Pe3UejZCe2X9QZGg0qFp3UTsf8gBgPQYHOaW3Tn1iGeLQ8w xqevxfHkjdtoE9bqqww== X-Proofpoint-GUID: p39_W6dmB0Dhi3YBbYI3Wg_lW2fOxZ7j X-Proofpoint-ORIG-GUID: p39_W6dmB0Dhi3YBbYI3Wg_lW2fOxZ7j X-Authority-Analysis: v=2.4 cv=foHRpV4f c=1 sm=1 tr=0 ts=6953e650 cx=c_pps a=UgVkIMxJMSkC9lv97toC5g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=wP3pNCr1ah4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=R_39l88JEWD-bIkMqAoA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=1HOtulTD9v-eNWfpl4qZ:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-12-30_01,2025-12-30_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 clxscore=1015 malwarescore=0 suspectscore=0 phishscore=0 impostorscore=0 bulkscore=0 lowpriorityscore=0 priorityscore=1501 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2512300133 On 12/30/25 3:19 PM, Konrad Dybcio wrote: > On 12/30/25 9:58 AM, Pradeep Pragallapati wrote: >> >> On 12/29/2025 5:47 PM, Konrad Dybcio wrote: >>> On 12/29/25 7:06 AM, Pradeep P V K wrote: >>>> Enable UFS for HAMOA-IOT-EVK board. >>>> >>>> Signed-off-by: Pradeep P V K >>>> --- >>> [...] >>> >>>> +&ufs_mem_hc { >>>> +    reset-gpios = <&tlmm 238 GPIO_ACTIVE_LOW>; >>>> + >>>> +    vcc-supply = <&vreg_l17b_2p5>; >>>> +    vcc-max-microamp = <1300000>; >>> I think they should both be 1.2 A peak >>> >>> Konrad >> This (1.3 A) is as per Hamoa power grid, which is same as SM8550. > > Please check again, I opened the power grid tab in the internal > documentation source that shall remain nameless and it said 1200 mA > for both regulators My source indeed said 1.2 and Pradeep's source indeed said 1.3 Because we don't know the source of this disjoint information we agreed to keep the higher value, especially since it was battle-tested Konrad