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Thu, 02 Jul 2026 02:41:09 -0700 (PDT) Received: from hu-mchunara-hyd.qualcomm.com ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-847cb75d850sm1141595b3a.19.2026.07.02.02.41.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Jul 2026 02:41:09 -0700 (PDT) From: Monish Chunara X-Google-Original-From: Monish Chunara To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Nitin Rawat , Pradeep Pragallapati , Komal Bajaj , Sachin Rathore , Monish Chunara , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Kamal Wadhwa Subject: [PATCH V2 1/4] arm64: dts: qcom: glymur-crd: Update VREG l2b_e0 and l9b_e0 voltage for SD-card Date: Thu, 2 Jul 2026 15:10:53 +0530 Message-Id: <20260702094056.3755467-2-mchunara@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260702094056.3755467-1-mchunara@oss.qualcomm.com> References: <20260702094056.3755467-1-mchunara@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Info: AW1haW4tMjYwNzAyMDA5OCBTYWx0ZWRfX0J5TL2/hGMe4 ZZJU7dWVkKzqYcksNOFFgvNW8yL6KZwsRvCK4Y1CnO2A3vuK/SyHMPhZT56g633hwU1KTulNh5b TwMCqD0LMciQ2H3d0wG6Fc6ti7CyKA0= X-Proofpoint-GUID: OuOliXlZ7l1cFVRlHsGtRnvI7nTiPaZZ X-Proofpoint-ORIG-GUID: OuOliXlZ7l1cFVRlHsGtRnvI7nTiPaZZ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzAyMDA5OCBTYWx0ZWRfX212Fw0dfmKGG GPOEBhPAlbUDgiPv8lZuZOKV5sVwZsxnlqQCKUfCnzQAHU4VBSuVrVbqN6u7nP4sS2P0kZep8vN ce7tl8jg1iW038GKsuDKZQ2fHmtf/lJIS5/TYeJ3avCbRz/3nAfsJsOd4V523aGlVKmtnPHu2hc wOSRc38Qi4mwOyUEP62yu1fZJPEaCSrAJo3mKQ11wQc2HMo4Z4KJe6l6TmgufyNHoW5p0l9qQqQ alIeZLN/rmgWOhXojBG4xi6ffQ8ix7jB3/KBvoEBJvnQtniB98TneVpT8lqILs8qFpWk3theqbF Vbj0ZShqS9SfksQEVToQI9uTBUTVIDtmrZGy113U9KjAbEEPENlotHNER0rXxAymys6e7qBTNBl EqJfloJ5BZEETnEIVTY38shzgRE9AmjzvYA4Q0Ut2+ojtiOVp8EiBsWSucO7eFKfcQOk0IqSt6O chkWTMTfWcVBXOC0Vsw== X-Authority-Analysis: v=2.4 cv=K9oS2SWI c=1 sm=1 tr=0 ts=6a463236 cx=c_pps a=Oh5Dbbf/trHjhBongsHeRQ==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=EUspDBNiAAAA:8 a=RbnQZSTpM6gPS1NYG1gA:9 a=_Vgx9l1VpLgwpw_dHYaR:22 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=2026-07-02_01,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 clxscore=1015 adultscore=0 impostorscore=0 suspectscore=0 spamscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607020098 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 --- arch/arm64/boot/dts/qcom/glymur-crd.dtsi | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/glymur-crd.dtsi b/arch/arm64/boot/dts/qcom/glymur-crd.dtsi index e784b538f42e..af6f42cdd39a 100644 --- a/arch/arm64/boot/dts/qcom/glymur-crd.dtsi +++ b/arch/arm64/boot/dts/qcom/glymur-crd.dtsi @@ -228,7 +228,7 @@ vreg_l1b_e0_1p8: ldo1 { vreg_l2b_e0_2p9: ldo2 { regulator-name = "vreg_l2b_e0_2p9"; - regulator-min-microvolt = <2904000>; + regulator-min-microvolt = <1804000>; regulator-max-microvolt = <2904000>; regulator-initial-mode = ; }; @@ -247,10 +247,10 @@ vreg_l8b_e0_1p50: ldo8 { regulator-initial-mode = ; }; - vreg_l9b_e0_2p7: ldo9 { - regulator-name = "vreg_l9b_e0_2p7"; - regulator-min-microvolt = <2704000>; - regulator-max-microvolt = <2704000>; + vreg_l9b_e0_2p9: ldo9 { + regulator-name = "vreg_l9b_e0_2p9"; + regulator-min-microvolt = <2960000>; + regulator-max-microvolt = <2960000>; regulator-initial-mode = ; }; -- 2.34.1