linux-kernel - [PATCH 3/5] ARM: dts: exynos4x12: Add GPS

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Message-id: <1394524494-30641-4-git-send-email-cw00.choi@samsung.com>
Date:	Tue, 11 Mar 2014 16:54:52 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	kgene.kim@...sung.com, t.figa@...sung.com
Cc:	linux-samsung-soc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, kyungmin.park@...sung.com,
	rob.herring@...xeda.com, pawel.moll@....com, mark.rutland@....com,
	swarren@...dotorg.org, ijc+devicetree@...lion.org.uk,
	linux@....linux.org.uk, Chanwoo Choi <cw00.choi@...sung.com>
Subject: [PATCH 3/5] ARM: dts: exynos4x12: Add GPS_ALIVE power domain

This patch add GPS_ALIVE power domain for Exynos4x12 SoC. GPS_ALIVE power domain
include GPS_BLK for GPS IP. Exynos SoC used generic power-domain driver to
control power domain. After completed kernel booting, Exynos power-domain driver
disable un-used power domain to reduce power-consumption/leak.

If GPS_ALIVE power domain isn't registered to Exynos power-domain driver,
happen power-leakage because GPS_ALIVE_CONFIGURATION is default power on state.

- 0x10023D00 : GPS_ALIVE_CONFIGURATION register address

Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@...sung.com>
---
 arch/arm/boot/dts/exynos4x12.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4x12.dtsi b/arch/arm/boot/dts/exynos4x12.dtsi
index 1ec77f6..066eb35 100644
--- a/arch/arm/boot/dts/exynos4x12.dtsi
+++ b/arch/arm/boot/dts/exynos4x12.dtsi
@@ -41,6 +41,11 @@
 		compatible = "samsung,exynos4210-pd";
 		reg = <0x10023CA0 0x20>;
 	};
+	
+	pd_gps_alive: gps-alive-power-domain@...23D00 {
+		compatible = "samsung,exynos4210-pd";
+		reg = <0x10023D00 0x20>;
+	};
 
 	clock: clock-controller@...30000 {
 		compatible = "samsung,exynos4412-clock";
-- 
1.8.0

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