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Wed, 10 Jun 2026 04:15:21 -0700 (PDT) Received: from hu-mchunara-hyd.qualcomm.com ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2c164fa213asm256052545ad.35.2026.06.10.04.15.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Jun 2026 04:15:21 -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 , Monish Chunara , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Kamal Wadhwa Subject: [PATCH 1/4] arm64: dts: qcom: glymur-crd: Update VREG l2b_e0 and l9b_e0 voltage for SD-card Date: Wed, 10 Jun 2026 16:45:05 +0530 Message-Id: <20260610111508.3941207-2-mchunara@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260610111508.3941207-1-mchunara@oss.qualcomm.com> References: <20260610111508.3941207-1-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-GUID: mv5xPojTP6Cwvn9Pix1TZngTbzsirKmy X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjEwMDEwNyBTYWx0ZWRfX3HQyU2r4oMp5 WwKpdmF36qPChdQ8f43rLcLTQRjV5ICTtcPRk14yIAODJhtpAmsPC+r+2nbI9XqsoJ8qBsI0920 oDkqJp/q+UVMYtGl3UeacA5pTc7/9azO0dbbNPbR47VT5HuTl19GxWEv5tY8FWq0izmha1veYMk LjMudZ82spauCVY3w1teTiKf5lB2Eg00aAYjeSAOltW0SjNeGSVDMLw9Ag90REWcD6WF0KZcd0z d6BBK+Hy9vlhqvIqRZ8iHDPma+IwJsfbfmfXj4zpr/T7iRtpw/8osjKI/F1esp4FHKXCJwNvzm1 kbNv4wjs3wY0HfvunTcWlp6JZ+s6w+KNkOZIN19OveCue58oC8zwumM8PGdXt93Vgv1uzTd4L8M f9X0qSIBoXxNRi9+4OFToE+bheoqpU9Z/rIiSuJbc9sG/cMOLrfEM2/TQ4YDv/Rp5gUEwlwzsgx Nq5YdNV+QDIKCWnl+rA== X-Authority-Analysis: v=2.4 cv=Co+PtH4D c=1 sm=1 tr=0 ts=6a29474b cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=RbnQZSTpM6gPS1NYG1gA:9 a=GvdueXVYPmCkWapjIL-Q:22 X-Proofpoint-ORIG-GUID: mv5xPojTP6Cwvn9Pix1TZngTbzsirKmy 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=2026-06-10_02,2026-06-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 adultscore=0 spamscore=0 clxscore=1015 impostorscore=0 suspectscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2606100107 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