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Fri, 03 Jul 2026 03:50:26 -0700 (PDT) X-Received: by 2002:a05:6214:61cf:10b0:8f1:1359:2af9 with SMTP id 6a1803df08f44-8f3c9abaac7mr61817826d6.10.1783075825578; Fri, 03 Jul 2026 03:50:25 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-698acf22e07sm2309404a12.7.2026.07.03.03.50.21 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 03 Jul 2026 03:50:24 -0700 (PDT) Message-ID: Date: Fri, 3 Jul 2026 12:50:20 +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 V2 1/4] arm64: dts: qcom: glymur-crd: Update VREG l2b_e0 and l9b_e0 voltage for SD-card To: Monish Chunara , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Nitin Rawat , Pradeep Pragallapati , Komal Bajaj , Sachin Rathore , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Kamal Wadhwa References: <20260702094056.3755467-1-mchunara@oss.qualcomm.com> <20260702094056.3755467-2-mchunara@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260702094056.3755467-2-mchunara@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwNzAzMDEwNSBTYWx0ZWRfX/LCozxiDgUvW 5UmCwpiYfpOoaGpJvl3G23Ks293USNhXSGXhvRcgkOawl/2Mla6qFQuNeYJPCz3xffGeaySbID5 QzGSGA0mN8wXDF9m9Cg9idpzq+ScpTo= X-Authority-Analysis: v=2.4 cv=FoI1OWrq c=1 sm=1 tr=0 ts=6a4793f2 cx=c_pps a=wEM5vcRIz55oU/E2lInRtA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=EUspDBNiAAAA:8 a=_FQnCXsvKZllb7IERd4A:9 a=QEXdDO2ut3YA:10 a=zgiPjhLxNE0A:10 a=OIgjcC2v60KrkQgK7BGD:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzAzMDEwNSBTYWx0ZWRfX1zWVc2yUp84h byUpshbkosMMZvjAHhMU9McOa4XSzhOuzGn23JNq1vo/4l/8Gg7yUFX9Iu19QsJ48LXQTuLpPyE jixOXgA++kt0n3VjNoRyRdsRAOF0NzCiMvXKU3dIKcF3/xyDRcvqjCSH2qtMub/fYilvdKXcRyb ySwGkQhJA7PHD/VDKbhaRzd7DRVqruikmKROLLlsCf3zjXyvlt1UHb4VNcbpJW7KN1MPpTKLUDS PasxJqb7hXSFen/jfNGmfyLeTNyufeQSs2JePVkSUobuDAk6ufgHbONJxdw2svwBPnbs7bgmlv/ kuX19ILQVuIg6ppyrIjlIMolpZBJHJ/0aAWAEav7W6vAEkzDb/WqgdKKUBLwlQbV/YXGzcEMna3 N+ftSR1RG8YvHBlYHKTeuGMds8JlQ7UMpEp+1vjbjmhdaPmvDbdmFS9x1lXqa+5tKYqAdYt4Ck2 q6VFFEYtPcpvz/w6pQw== X-Proofpoint-ORIG-GUID: 9zd3qxpCh33RFuYaKFAN05DBt6y5bQoX X-Proofpoint-GUID: 9zd3qxpCh33RFuYaKFAN05DBt6y5bQoX X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-07-03_02,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 adultscore=0 clxscore=1015 lowpriorityscore=0 priorityscore=1501 phishscore=0 bulkscore=0 spamscore=0 suspectscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607030105 On 7/2/26 11:40 AM, Monish Chunara wrote: > From: Kamal Wadhwa > > SD cards may need 1.8v VDDIO also to be supported, to accommodate this > requirement reduce the min voltage to 1.8v for `vreg_l2b_e0` which > supplies to VDDIO pin of SD card. > > NOTE - Since this SD card is the only client on this regulator, this > change should not have any side effect on any other clients. > moreover, SD card driver takes care to explicitly vote for the > regulator voltage based on the SD card detection sequence. > > Also for stable operation of the SD card increase VDD voltage > supplied by `vreg_l9b_e0` to 2.96v. > > Signed-off-by: Kamal Wadhwa > Signed-off-by: Monish Chunara > --- Please switch to using the b4 tool and run `b4 trailers -u` before sending the new revision to make sure you pick up review tags Reviewed-by: Konrad Dybcio Konrad