linux-kernel - [PATCH 6.0 431/862] arm64: dts: qcom: sa8295p-adp: disallow regulator mode switches

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Date:   Wed, 19 Oct 2022 10:28:38 +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 6.0 431/862] arm64: dts: qcom: sa8295p-adp: disallow regulator mode switches

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

[ Upstream commit 2a6164cef63cae77edbd9deef844b1774886fcb7 ]

Do not allow the RPMh regulators to switch to low-power mode with an
exception for the UFS regulators (l3c, l6c, l10c and l17c) 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: 519183af39b2 ("arm64: dts: qcom: add SA8540P and ADP")
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/20220803121942.30236-4-johan+linaro@kernel.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/qcom/sa8295p-adp.dts | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sa8295p-adp.dts b/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
index 9398f0349944..ca5f5ad32ce5 100644
--- a/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
+++ b/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
@@ -35,7 +35,6 @@
 			regulator-min-microvolt = <1200000>;
 			regulator-max-microvolt = <1208000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 
 		vreg_l5a: ldo5 {
@@ -43,7 +42,6 @@
 			regulator-min-microvolt = <912000>;
 			regulator-max-microvolt = <912000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 
 		vreg_l7a: ldo7 {
@@ -51,7 +49,6 @@
 			regulator-min-microvolt = <1800000>;
 			regulator-max-microvolt = <1800000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 
 		vreg_l13a: ldo13 {
@@ -59,7 +56,6 @@
 			regulator-min-microvolt = <3072000>;
 			regulator-max-microvolt = <3072000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 	};
 
@@ -72,7 +68,6 @@
 			regulator-min-microvolt = <912000>;
 			regulator-max-microvolt = <912000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 
 		vreg_l2c: ldo2 {
@@ -80,7 +75,6 @@
 			regulator-min-microvolt = <3072000>;
 			regulator-max-microvolt = <3072000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 
 		vreg_l3c: ldo3 {
@@ -96,7 +90,6 @@
 			regulator-min-microvolt = <1200000>;
 			regulator-max-microvolt = <1208000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 
 		vreg_l6c: ldo6 {
@@ -112,7 +105,6 @@
 			regulator-min-microvolt = <1800000>;
 			regulator-max-microvolt = <1800000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 
 		vreg_l10c: ldo10 {
@@ -141,7 +133,6 @@
 			regulator-min-microvolt = <1200000>;
 			regulator-max-microvolt = <1200000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 
 		vreg_l7g: ldo7 {
@@ -149,7 +140,6 @@
 			regulator-min-microvolt = <1800000>;
 			regulator-max-microvolt = <1800000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 
 		vreg_l8g: ldo8 {
@@ -157,7 +147,6 @@
 			regulator-min-microvolt = <880000>;
 			regulator-max-microvolt = <880000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 	};
 };
-- 
2.35.1