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Wed, 22 Jul 2026 07:23:57 -0700 (PDT) Received: from hu-mchunara-hyd.qualcomm.com ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3147dc7d8fbsm11231211eec.10.2026.07.22.07.23.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 22 Jul 2026 07:23:57 -0700 (PDT) From: Monish Chunara X-Google-Original-From: Monish Chunara To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Dmitry Baryshkov 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 Subject: [PATCH V4 1/4] arm64: dts: qcom: glymur-crd: Update VREG l2b_e0 and l9b_e0 voltage for SD-card Date: Wed, 22 Jul 2026 19:53:39 +0530 Message-Id: <20260722142342.990384-2-mchunara@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260722142342.990384-1-mchunara@oss.qualcomm.com> References: <20260722142342.990384-1-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: 2gtl561JKpeV-chyaq9b0fBYI0D4I0zJ X-Authority-Analysis: v=2.4 cv=KLhqylFo c=1 sm=1 tr=0 ts=6a60d27e cx=c_pps a=Qgeoaf8Lrialg5Z894R3/Q==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=RbnQZSTpM6gPS1NYG1gA:9 a=x9snwWr2DeNwDh03kgHS:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzIyMDE0MSBTYWx0ZWRfXyQTQLfnhCzmg ltXWN5R/4veAW3ov3Rv03NBlHGdKB4O3uMX/mSpkUlmn9SHfBSv1OWQckeeLqqyc6/W5fy8LyOg D9Fj7P8/dvcDdyzsAwe4fs+yB190foKJtpEx1iQEyDFMoclHF0j/eZ6+6DQl0LNtV1QlJxgZcSY 5+jbAFj/ISgCA9R2H0dhMctnhKfzKc+86+b3WhDjSrpX3OfTwK1yWrMWZ1qMfYmCKVZULg848hg j0hXK6BIN1BbdBf8fyxlfhescyLLinT2kQKsanfZRIYM4yH6z7DZ4FOg0EPCPFqXBhGn/rWgDwK vhqtHmbFIhfilWxnIrZIeLsjQVVwigb5ma+KG6H37Vizy75UgGzswFRet5ykgJehgPnbMEzBCr0 3zxd7NN4Ebb5ykRotqvb8fGQOwGqQDrZveKjdGS569xrPgafOphxOmbx0la+n6Aen8cAL4RLwgA kpHboiUOKW6DOaXL5MQ== X-Proofpoint-ORIG-GUID: 2gtl561JKpeV-chyaq9b0fBYI0D4I0zJ X-Proofpoint-Spam-Info: AW1haW4tMjYwNzIyMDE0MSBTYWx0ZWRfX9bCfBssvHLhq ZGFIFjfQZTWMenvFNjAuhUPeLz72wQeUhc4oN4qaSXIv+UMn+HAMwIt7AKZtO8JR4M2omYgjSSb WbBmqeEgGZ/FB2R0caOzsVH7YKP/uyc= 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=2026-07-22_04,2026-07-22_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 spamscore=0 clxscore=1015 impostorscore=0 lowpriorityscore=0 priorityscore=1501 malwarescore=0 phishscore=0 adultscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607220141 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 b314c6dd423c..2e41b4ec83a5 100644 --- a/arch/arm64/boot/dts/qcom/glymur-crd.dtsi +++ b/arch/arm64/boot/dts/qcom/glymur-crd.dtsi @@ -373,7 +373,7 @@ 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 = ; }; @@ -392,10 +392,10 @@ 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