linux-kernel - [PATCH V2] arm64: dts: qcom: qcm6490-idp: Allow UFS regulators load/mode setting

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Message-ID: <20241015132049.2037500-1-quic_kotarake@quicinc.com>
Date: Tue, 15 Oct 2024 18:50:49 +0530
From: Rakesh Kota <quic_kotarake@...cinc.com>
To: <dmitry.baryshkov@...aro.org>, <andersson@...nel.org>,
        <konradybcio@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <quic_kamalw@...cinc.com>, <quic_jprakash@...cinc.com>,
        <quic_kotarake@...cinc.com>
Subject: [PATCH V2] arm64: dts: qcom: qcm6490-idp: Allow UFS regulators load/mode setting

The UFS driver expects to be able to set load (and by extension, mode)
on its supply regulators. Add the necessary properties to make that
possible.

Signed-off-by: Rakesh Kota <quic_kotarake@...cinc.com>
---
Changes V2:
 - Dropped the removing Min and Max Voltage change as suggusted by the Dmitry
 - Link to v1: https://lore.kernel.org/all/20241004080110.4150476-1-quic_kotarake@quicinc.com
--- 
 arch/arm64/boot/dts/qcom/qcm6490-idp.dts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
index 5f3d4807ac43..a000bf9115cc 100644
--- a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
+++ b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
@@ -258,6 +258,8 @@ vreg_l6b_1p2: ldo6 {
 			regulator-name = "vreg_l6b_1p2";
 			regulator-min-microvolt = <1140000>;
 			regulator-max-microvolt = <1260000>;
+			regulator-allow-set-load;
+			regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM RPMH_REGULATOR_MODE_HPM>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 		};
 
@@ -265,6 +267,8 @@ vreg_l7b_2p952: ldo7 {
 			regulator-name = "vreg_l7b_2p952";
 			regulator-min-microvolt = <2400000>;
 			regulator-max-microvolt = <3544000>;
+			regulator-allow-set-load;
+			regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM RPMH_REGULATOR_MODE_HPM>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 		};
 
@@ -279,6 +283,8 @@ vreg_l9b_1p2: ldo9 {
 			regulator-name = "vreg_l9b_1p2";
 			regulator-min-microvolt = <1200000>;
 			regulator-max-microvolt = <1304000>;
+			regulator-allow-set-load
+			regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM RPMH_REGULATOR_MODE_HPM>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 		};
 
@@ -467,6 +473,8 @@ vreg_l10c_0p88: ldo10 {
 			regulator-name = "vreg_l10c_0p88";
 			regulator-min-microvolt = <720000>;
 			regulator-max-microvolt = <1050000>;
+			regulator-allow-set-load;
+			regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM RPMH_REGULATOR_MODE_HPM>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 		};
 
-- 
2.34.1