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From:   Johan Hovold <johan+linaro@kernel.org>
To:     Bjorn Andersson <bjorn.andersson@linaro.org>
Cc:     Andy Gross <agross@kernel.org>,
        Konrad Dybcio <konrad.dybcio@somainline.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
        linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Johan Hovold <johan+linaro@kernel.org>
Subject: [PATCH 3/3] arm64: dts: qcom: sa8295p-adp: disallow regulator mode switches
Date:   Wed,  3 Aug 2022 14:19:42 +0200
Message-Id: <20220803121942.30236-4-johan+linaro@kernel.org>
In-Reply-To: <20220803121942.30236-1-johan+linaro@kernel.org>
References: <20220803121942.30236-1-johan+linaro@kernel.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

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@kernel.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 @@ vreg_l3a: ldo3 {
 			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 @@ vreg_l5a: ldo5 {
 			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 @@ vreg_l7a: ldo7 {
 			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 @@ vreg_l13a: ldo13 {
 			regulator-min-microvolt = <3072000>;
 			regulator-max-microvolt = <3072000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 	};
 
@@ -72,7 +68,6 @@ vreg_l1c: ldo1 {
 			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 @@ vreg_l2c: ldo2 {
 			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 @@ vreg_l4c: ldo4 {
 			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 @@ vreg_l7c: ldo7 {
 			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 @@ vreg_l3g: ldo3 {
 			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 @@ vreg_l7g: ldo7 {
 			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 @@ vreg_l8g: ldo8 {
 			regulator-min-microvolt = <880000>;
 			regulator-max-microvolt = <880000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
-			regulator-allow-set-load;
 		};
 	};
 };
-- 
2.35.1