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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: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: K5WsePQD_TPqTKD919mpychtnPppsvi1 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzAyMDA5OCBTYWx0ZWRfX4FImKwvmqYn5 pKEXIHsNfM0EeGyflIG6YI55+EcfRbDM/isemBoWr1H4qlkH5Hmiw8pDlqegokgdL9OGyDmvJ1m VY4nTr2N1YxhDX6JzjZQvEAMn3HFR0HP57mDOZFem7Q35xrLQQ6b30i2nLQu8LkemiPpZVEluW5 CUhGtHtJhQpx6CIhHdyzxhnrbWqFmZr9ujbOU6qlC8tCRdeDe7GPRwEiM7+qmcJfjXVw7tZy5MQ 1xefC56CfVIomBafEaNSng7FGmh4ygAYBffEEzK/KWzXa7vixMXoYAznW1HRB4Ado5nmfBuOQvS f8SaHjoeJzbOvtZVvb5Uekjt5GZD4ie32up+7plaTntc+EYiULzP71ydJbGisHOGfhLWt3uuvgR 2H5Mi4lHKqZPvswtxEXkkN68WcKoSZviG0LT7lb3xyvZazxU6dxKLDqpMr/hHcN+CkNG4b8OT8n lDsxO+vhZFUzQRp405g== X-Proofpoint-Spam-Info: AW1haW4tMjYwNzAyMDA5OCBTYWx0ZWRfX2YNsxUu0lD5P vD4YMeHufSPRddUg2Cdjag3gsVnb1kkL2BeRRCcsBXN+FCB/4XyPe66HLsndxtJaw0XyikAYf6G 37kFbPknMKvaUD+iv+E7yzb0ZqL4jSo= X-Authority-Analysis: v=2.4 cv=N+UZ0W9B 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=Um2Pa8k9VHT-vaBCBUpS:22 a=EUspDBNiAAAA:8 a=RbnQZSTpM6gPS1NYG1gA:9 a=_Vgx9l1VpLgwpw_dHYaR:22 X-Proofpoint-ORIG-GUID: K5WsePQD_TPqTKD919mpychtnPppsvi1 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 impostorscore=0 lowpriorityscore=0 clxscore=1015 bulkscore=0 spamscore=0 priorityscore=1501 phishscore=0 adultscore=0 malwarescore=0 suspectscore=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