linux-kernel - [PATCH 6.0 429/862] arm64: dts: qcom: sc8280xp-crd: disallow regulator mode switches

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Message-Id: <20221019083308.916196759@linuxfoundation.org>
Date:   Wed, 19 Oct 2022 10:28:36 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Johan Hovold <johan+linaro@...nel.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.0 429/862] arm64: dts: qcom: sc8280xp-crd: disallow regulator mode switches

From: Johan Hovold <johan+linaro@...nel.org>

[ Upstream commit 412737a60c846a6adb7f7571905c200da036815e ]

Do not allow the RPMh regulators to switch to low-power mode with an
exception for the UFS regulators (l7c and l3d) as UFS supports an idle
mode.

This specifically avoids having regulators be but in low-power mode when
only some consumers specify loads while the actual total load really
warrants high-power mode.

Fixes: ccd3517faf18 ("arm64: dts: qcom: sc8280xp: Add reference device")
Link: https://lore.kernel.org/all/YtkrDcjTGhpaU1e0@hovoldconsulting.com
Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Signed-off-by: Bjorn Andersson <andersson@...nel.org>
Link: https://lore.kernel.org/r/20220803121942.30236-2-johan+linaro@kernel.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
index 45058ad0a1c8..6792e88b2c6c 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
@@ -87,7 +87,6 @@
 			regulator-min-microvolt = <1200000>;
 			regulator-max-microvolt = <1200000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 			regulator-boot-on;
 			regulator-always-on;
 		};
@@ -97,7 +96,6 @@
 			regulator-min-microvolt = <912000>;
 			regulator-max-microvolt = <912000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 
 		vreg_l6b: ldo6 {
@@ -105,7 +103,6 @@
 			regulator-min-microvolt = <880000>;
 			regulator-max-microvolt = <880000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 			regulator-boot-on;
 		};
 	};
@@ -119,7 +116,6 @@
 			regulator-min-microvolt = <1800000>;
 			regulator-max-microvolt = <1800000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 
 		vreg_l7c: ldo7 {
@@ -135,7 +131,6 @@
 			regulator-min-microvolt = <3072000>;
 			regulator-max-microvolt = <3072000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 	};
 
@@ -158,7 +153,6 @@
 			regulator-min-microvolt = <1200000>;
 			regulator-max-microvolt = <1200000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 
 		vreg_l6d: ldo6 {
@@ -166,7 +160,6 @@
 			regulator-min-microvolt = <880000>;
 			regulator-max-microvolt = <880000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 
 		vreg_l7d: ldo7 {
@@ -174,7 +167,6 @@
 			regulator-min-microvolt = <3072000>;
 			regulator-max-microvolt = <3072000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 
 		vreg_l9d: ldo9 {
@@ -182,7 +174,6 @@
 			regulator-min-microvolt = <912000>;
 			regulator-max-microvolt = <912000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 	};
 };
-- 
2.35.1