From 50af2132d648e56711e77446f12519e4ae21f042 Mon Sep 17 00:00:00 2001 From: Ziqi Chen Date: Mon, 24 May 2021 11:06:10 +0800 Subject: [PATCH] ARM: dts: msm: Set allowable min volt of L9B to 1.2V for Yupik The L9B Regulator is used by UFS's VCCQ. To follow UFS JEDEC, UFS driver has to vote for 1.14v-1.26v. But the actual measured value of VCCQ would be less than 1.14v due to HW IR drop. So we limit L9B's min volt to 1.2V from regulator layer to avoid this UFS VCCQ Spec violation issue. Change-Id: I2aec6e2cbcfd341265fd33fbd50e3e740d39498b --- qcom/yupik-regulators.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/qcom/yupik-regulators.dtsi b/qcom/yupik-regulators.dtsi index 90a20f083879..ea18346f0255 100644 --- a/qcom/yupik-regulators.dtsi +++ b/qcom/yupik-regulators.dtsi @@ -217,7 +217,7 @@ pm7325_l9: regulator-pm7325-l9 { regulator-name = "pm7325_l9"; qcom,set = ; - regulator-min-microvolt = <1080000>; + regulator-min-microvolt = <1200000>; regulator-max-microvolt = <1304000>; qcom,init-voltage = <1200000>; qcom,init-mode = ;