linux-kernel - [PATCH v2 1/4] ARM: dts: exynos: Disable unused buck10 regulator on Odroid HC1 board

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Message-Id: <20190621155845.7079-1-krzk@kernel.org>
Date:   Fri, 21 Jun 2019 17:58:42 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Anand Moon <linux.amoon@...il.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/4] ARM: dts: exynos: Disable unused buck10 regulator on Odroid HC1 board

The eMMC memory on Odroid XU3/XU4 boards is supplied by two regulators
LDO18 and buck10 (and LDO13 for the host interface).

However the Odroid HC1 board does not have eMMC connector so this
regulator does not have to be always on.

Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>

---

Changes since v1:
1. None
---
 arch/arm/boot/dts/exynos5422-odroid-core.dtsi      | 2 --
 arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 6 ++++++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
index 25d95de15c9b..0f967259ad29 100644
--- a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
@@ -490,8 +490,6 @@
 				regulator-name = "vdd_vmem";
 				regulator-min-microvolt = <2850000>;
 				regulator-max-microvolt = <2850000>;
-				regulator-always-on;
-				regulator-boot-on;
 			};
 		};
 	};
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
index 93a48f2dda49..838872037493 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
@@ -360,6 +360,12 @@
 	};
 };
 
+&buck10_reg {
+	/* Supplies vmmc-supply of mmc_0 */
+	regulator-always-on;
+	regulator-boot-on;
+};
+
 &hdmi {
 	status = "okay";
 	ddc = <&i2c_2>;
-- 
2.17.1