From d656360601e32dc7472ea74bf7d73eb7d3e4a795 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Mon, 6 Aug 2018 18:09:33 +0200 Subject: [PATCH] ARM: dts: exynos: Add LDO28 regulator on Exynos5422 Odroid boards The LDO28 is used only on Odroid XU3 for Display Port. Define it so DTS will describe entire hardware. Depending on bootloader behavior this might affect the Display Port because none of drivers are enabling it. By default it is off in S2MPS11 PMIC reset values. However it could be enabled by bootloader so in such case kernel will later disable it as unused regulator. Signed-off-by: Krzysztof Kozlowski Tested-by: Marek Szyprowski --- arch/arm/boot/dts/exynos5422-odroid-core.dtsi | 7 +++++++ arch/arm/boot/dts/exynos5422-odroidxu3.dts | 6 ++++++ 2 files changed, 13 insertions(+) diff --git a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi index b0dc9cc81b94a..2fac4baf1eb49 100644 --- a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi +++ b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi @@ -331,6 +331,13 @@ regulator-always-on; }; + ldo28_reg: LDO28 { + /* Used on XU3 */ + regulator-name = "vdd_ldo28"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3950000>; + }; + ldo29_reg: LDO29 { /* Unused */ regulator-name = "vdd_ldo29"; diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts b/arch/arm/boot/dts/exynos5422-odroidxu3.dts index 0322f281912cb..db0bc17a667bd 100644 --- a/arch/arm/boot/dts/exynos5422-odroidxu3.dts +++ b/arch/arm/boot/dts/exynos5422-odroidxu3.dts @@ -49,6 +49,12 @@ }; }; +&ldo28_reg { + regulator-name = "dp_p3v3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; +}; + &pwm { /* * PWM 0 -- fan -- 2.39.5