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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-scsi@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: AW1haW4tMjUxMjMwMDEzMyBTYWx0ZWRfX9KVYir9PFoWz /75Q0KHtZsmU7IlsjexnfaBB9tLqAPtJ2H+A3SYKs51R1jrQ7hY9vjt9Drbk2D4c5uNcyvtIp1D iekLfLSJzIc9/3XXKVAVvuhW9SyuKYvVjHF4OwH6JPDebrPhtNSOoTtAEShqwikoqaXNVxk5JWK kaMMGzFmwaRF45Td9wy6Ewm4sUuH0lItC5vdDMW2XNJ2gRqUSGPk2WxxxjY/ctRcWtJPFAQ/Ngb fhlCP4sRQUbEChGf7APyQcpyxpBnOopn3Hik6JQO3F2ftBtmJNUhgJP0U7jnLxHv46Xu+yK3dVB B8T180Lev7Qe0YJLZ0WB0/G2MUrdehVHKaJ55R50Y2Kcdb/ffDAihQPGpVVkfgiQJuT8nY2+SnT cxFNRvKMRz+If3GKd5WwRquZ0GoSGpnS1IeJIaMGJAhLw0oQExK1EPxlO6Cieo5MR/OMj49kzRW Ss/NhID+v4FQx51w7nQ== X-Proofpoint-ORIG-GUID: TC7Q0TgXJc2ea505RQNuT6G-eWGBUFcH X-Proofpoint-GUID: TC7Q0TgXJc2ea505RQNuT6G-eWGBUFcH X-Authority-Analysis: v=2.4 cv=FJ0WBuos c=1 sm=1 tr=0 ts=6953e650 cx=c_pps a=wEM5vcRIz55oU/E2lInRtA==: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=OIgjcC2v60KrkQgK7BGD: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 bulkscore=0 clxscore=1015 suspectscore=0 priorityscore=1501 impostorscore=0 spamscore=0 phishscore=0 malwarescore=0 adultscore=0 lowpriorityscore=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