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Mon, 06 Jul 2026 07:14:03 -0700 (PDT) Received: from hu-mchunara-hyd.qualcomm.com ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-38127ae5b06sm5118416a91.3.2026.07.06.07.13.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Jul 2026 07:14:03 -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 , Konrad Dybcio , Dmitry Baryshkov Subject: [PATCH V3 1/4] arm64: dts: qcom: glymur-crd: Update VREG l2b_e0 and l9b_e0 voltage for SD-card Date: Mon, 6 Jul 2026 19:43:43 +0530 Message-Id: <20260706141346.4180348-2-mchunara@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260706141346.4180348-1-mchunara@oss.qualcomm.com> References: <20260706141346.4180348-1-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-Details-Enc: AW1haW4tMjYwNzA2MDE0NSBTYWx0ZWRfX9578SU1W0w39 MlmU/QIcNG7OuQ/Wu6UHXCPNmvZ+U3D3vqWYvHzpxBLmFlyFubS5LPG4jTQbyKv/xEdvQrFR/my 5H51bUB2/tNh//ei7SKWvV9V2UztFcXXEKJAIs/rLcckgScssfkhH+OCM2JfoLY2PSFMBSsN328 nTCO4nnuSaJ/atHmZtNC+UO7Fie/dEBmHA++v6QolAOEhd9I/R/VfQfdzbYkcA6o5YDN4iuWBDp u+7tPDzRf4kw50rgg/pbnb/gdy70h82SAo+1P5GYKSyBnncGFAVHBQZVWrBn0lR2NnfJtO0ZJZf fU1s7q+YIXAHvPkDXTu0KSEPT6UAv/vfuY1x2Vk8PZHToeY68TgJZQNLDGKOdj438GGQgTdxeSG ClHkFCZGWZxzw5j1qU4pWH2TsSEcgL75kj/I2RV4NBac5vKiKSTlY8OXlqaIMVFKayQJCYxskpe k6RbNQHm1TqUkExaCfw== X-Proofpoint-ORIG-GUID: vcR75sI39Ana_tBPMVAcnMPXq98pgpmb X-Proofpoint-Spam-Info: AW1haW4tMjYwNzA2MDE0NSBTYWx0ZWRfX0A5Qyo2dw02M ZAf/4VGW1qLIjidhJuHnoJfSb3q/Rt/spEqnsHtTL0QCZ+CMDD8TJ3xmUmgRmtO6NH+/sM81RKg jeqGVVcR6y3+bJXkUlbohi2nGaJ3yVE= X-Proofpoint-GUID: vcR75sI39Ana_tBPMVAcnMPXq98pgpmb X-Authority-Analysis: v=2.4 cv=f9N4wuyM c=1 sm=1 tr=0 ts=6a4bb830 cx=c_pps a=RP+M6JBNLl+fLTcSJhASfg==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=EUspDBNiAAAA:8 a=RbnQZSTpM6gPS1NYG1gA:9 a=iS9zxrgQBfv6-_F4QbHw:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-06_01,2026-07-06_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 adultscore=0 impostorscore=0 bulkscore=0 suspectscore=0 clxscore=1015 spamscore=0 phishscore=0 priorityscore=1501 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607060145 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 Reviewed-by: Konrad Dybcio Reviewed-by: Dmitry Baryshkov 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