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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: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: HnoWP46g24LumHdTpmV2Hirl9iX1Gg3z X-Proofpoint-Spam-Info: AW1haW4tMjYwNzA2MDE0NSBTYWx0ZWRfX23H7XRDvvhy/ vmI0DsHAmyP+Oag19mhYxsWykmRByQkRZa6IBtkIqr2guVDQ/VOo2XgA9i3M8bYdfNSf8DeH7R1 Dk3BgJEfYNuIkeZSC0m9fGURvn7XsnA= X-Authority-Analysis: v=2.4 cv=EPU2FVZC c=1 sm=1 tr=0 ts=6a4bb82c cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=EUspDBNiAAAA:8 a=RbnQZSTpM6gPS1NYG1gA:9 a=rl5im9kqc5Lf4LNbBjHf:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzA2MDE0NSBTYWx0ZWRfX7EP23VzVE899 9ziiyxBpFCiYpTuRY9X0ikRduFzW2PHJG+7hbJ7G5eAa7tA7Y8REr2fLZA5zHNCTvFZeIVE76FV rVXd7lORl6/FQb/EkuUlfRqK/IPC/fOVX7GpTNyyO13AWZCXLiRb4REL6aM4HQcUDpVJKXGDul7 hDqhEvM/cyzKw0HMn3VAkSplLjtz6/lPrrFS7frLY70L+7lP3EIMeVI1cQ1+ji5a9CR3VLNWz// 8YsyQYXlutcVe/fpxQ/lRVlZCghgsvhzD92xiXwhATkSVGxkkccVk8HVLu70bTbtfcBZaOoMuD4 /hWkCcsDIHcYZ7+2kLF75sHUzVieARPcjQ81Py5NbohFJcaNXF64nb7i+StHLaJFi+5SMwMQU/h 8olpMxQV8Xtrr87XC5N6UAPeCxruPFJA+UWf5sHsCcs4s78MX2sXmTYH1tDHBHVLVb3SCoxPaeP DOXb4MxS2rO5rEl4UFA== X-Proofpoint-ORIG-GUID: HnoWP46g24LumHdTpmV2Hirl9iX1Gg3z 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_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 lowpriorityscore=0 malwarescore=0 spamscore=0 adultscore=0 suspectscore=0 phishscore=0 bulkscore=0 impostorscore=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