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Thu, 11 Jun 2026 01:58:16 -0700 (PDT) X-Received: by 2002:a05:620a:808a:b0:915:4ca0:11f9 with SMTP id af79cd13be357-9160ad70d69mr155514585a.7.1781168296012; Thu, 11 Jun 2026 01:58:16 -0700 (PDT) Received: from [192.168.120.170] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-68e65867e67sm10678980a12.21.2026.06.11.01.58.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 11 Jun 2026 01:58:14 -0700 (PDT) Message-ID: <56f60746-c35a-455d-9991-7672d4f0507f@oss.qualcomm.com> Date: Thu, 11 Jun 2026 10:58:12 +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 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 , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Kamal Wadhwa References: <20260610111508.3941207-1-mchunara@oss.qualcomm.com> <20260610111508.3941207-2-mchunara@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260610111508.3941207-2-mchunara@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: k6ayyGRFr7yyVUhnhI7oZBXNmKgf1LWH X-Proofpoint-Spam-Info: AW1haW4tMjYwNjExMDA4OSBTYWx0ZWRfXwqK/Bh9dFvLL GIRER8PtQxqsKETvM71ovlrL7QktsE0YO42zSS4kAIyg9K1GQ1lm19CToAtjNOXTI+eqva193G/ uEAffZmBlNyYQJ87H0baBfZR3VoQqhI= X-Proofpoint-ORIG-GUID: k6ayyGRFr7yyVUhnhI7oZBXNmKgf1LWH X-Authority-Analysis: v=2.4 cv=Kux9H2WN c=1 sm=1 tr=0 ts=6a2a78a8 cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=EUspDBNiAAAA:8 a=_FQnCXsvKZllb7IERd4A:9 a=QEXdDO2ut3YA:10 a=zgiPjhLxNE0A:10 a=PEH46H7Ffwr30OY-TuGO:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjExMDA4OSBTYWx0ZWRfX5wwjM2e1FFGq oOh+0KyEuc1dxexokXrMxGqkZAZ4OqHGYXIsf0O4zE4vmv8/SJB2fob6fxUrLHz07nRXRuKHzYn gz1heU/4m2full9AOhhv6OT+i8FvRyHZbjDuyymkpfOCl/6r0FV2Q7UMW3bE+R7eKb33Yt8hmOm wU9GvZvz6A3XB+KJsTz//brZ1m5BzibeJkBvNi5cCuqZna1m6dAhxoHMcM+imFoyEZaOF0vJ7pl FJhQZ0Jg96VoNQ2TPm4Mq23mKgwhNfPj5AeNyRo2+coaMvj3ZnkcTMPvczCk2cOzSdw4ZPry9tF mL2N6rysChzL+cHuyfsmUKUC5IPpJ7wK0HhvrqsxUEJQWpGLPAn0yyZj7MPnEC2TYy6BNMnzVMo dXNQeSFeK9Z45OS0F4y42Ibxp7LSdnLcAGGSEMhqyS0zf2q+HmPgrVrExg8XZN2TXYLavqTCref e7E6QT6t+zed9AnamgA== 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=2026-06-11_01,2026-06-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 malwarescore=0 phishscore=0 spamscore=0 bulkscore=0 clxscore=1015 suspectscore=0 lowpriorityscore=0 priorityscore=1501 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606040000 definitions=main-2606110089 On 6/10/26 1:15 PM, 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. Reviewed-by: Konrad Dybcio Konrad