linux-kernel - [PATCH v9 19/20] ARM: dts: Expand the voltage range of buck1/3 regulator for exynos4412-odroidu3

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Date:	Mon, 11 Apr 2016 12:57:57 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	myungjoo.ham@...sung.com, kyungmin.park@...sung.com,
	k.kozlowski@...sung.com, kgene@...nel.org, s.nawrocki@...sung.com,
	tomasz.figa@...il.com
Cc:	rjw@...ysocki.net, robh+dt@...nel.org, pawel.moll@....com,
	mark.rutland@....com, ijc+devicetree@...lion.org.uk,
	galak@...eaurora.org, linux@....linux.org.uk,
	linux.amoon@...il.com, m.reichl@...etechno.de,
	tjakobi@...h.uni-bielefeld.de, inki.dae@...sung.com,
	cw00.choi@...sung.com, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org
Subject: [PATCH v9 19/20] ARM: dts: Expand the voltage range of buck1/3
 regulator for exynos4412-odroidu3

This patch expands the voltage range of buck1/3 regulator due to as following:
- MIF (Memory Interface) bus frequency needs the range of '900 - 1100 mV'.
- INT (Internal) bus frequency needs the range of '900 - 1050 mV'.

Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
[m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
Tested-by: Markus Reichl <m.reichl@...etechno.de>
Tested-by: Anand Moon <linux.amoon@...il.com>
---
 arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index cba37c974703..b4983cbc4f8c 100644
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -356,8 +356,8 @@
 
 			buck1_reg: BUCK1 {
 				regulator-name = "vdd_mif";
-				regulator-min-microvolt = <1000000>;
-				regulator-max-microvolt = <1000000>;
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <1100000>;
 				regulator-always-on;
 				regulator-boot-on;
 			};
@@ -372,8 +372,8 @@
 
 			buck3_reg: BUCK3 {
 				regulator-name = "vdd_int";
-				regulator-min-microvolt = <1000000>;
-				regulator-max-microvolt = <1000000>;
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <1050000>;
 				regulator-always-on;
 				regulator-boot-on;
 			};
-- 
1.9.1