linux-kernel - [PATCH 1/3] ARM: dts: imx6: add pm_power

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Message-ID: <1415780439-29728-2-git-send-email-b38343@freescale.com>
Date:	Wed, 12 Nov 2014 16:20:37 +0800
From:	Robin Gong <b38343@...escale.com>
To:	<shawn.guo@...aro.org>, <kernel@...gutronix.de>,
	<robh+dt@...nel.org>, <pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<linux@....linux.org.uk>, <sre@...nel.org>, <dbaryshkov@...il.com>,
	<dwmw2@...radead.org>, <grant.likely@...aro.org>
CC:	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-pm@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<smoch@....de>
Subject: [PATCH 1/3] ARM: dts: imx6: add pm_power_off support for i.mx6 chips

All chips of i.mx6 can be powered off by programming SNVS.
For example :
On i.mx6q-sabresd board, PMIC_ON_REQ connect with external
pmic ON/OFF pin, that will cause the whole PMIC powered off
except VSNVS. And system can restart once PMIC_ON_REQ goes
high by push POWRER key.

Signed-off-by: Robin Gong <b38343@...escale.com>
---
 arch/arm/boot/dts/imx6qdl-sabresd.dtsi |    4 ++++
 arch/arm/boot/dts/imx6qdl.dtsi         |    6 ++++++
 arch/arm/boot/dts/imx6sl-evk.dts       |    4 ++++
 arch/arm/boot/dts/imx6sl.dtsi          |    6 ++++++
 arch/arm/boot/dts/imx6sx-sdb.dts       |    4 ++++
 arch/arm/boot/dts/imx6sx.dtsi          |    6 ++++++
 6 files changed, 30 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
index 07fb302..ba12cc6 100644
--- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
@@ -531,6 +531,10 @@
 	status = "okay";
 };
 
+&snvs-poweroff {
+	status = "okay";
+};
+
 &ssi2 {
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index c701af9..3a032d1 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -645,6 +645,12 @@
 					interrupts = <0 19 IRQ_TYPE_LEVEL_HIGH>,
 						     <0 20 IRQ_TYPE_LEVEL_HIGH>;
 				};
+
+				snvs-poweroff: snvs-poweroff@38 {
+					compatible = "fsl,sec-v4.0-poweroff";
+					reg = <0x38 0x4>;
+					status = "disabled";
+				};
 			};
 
 			epit1: epit@...d0000 { /* EPIT1 */
diff --git a/arch/arm/boot/dts/imx6sl-evk.dts b/arch/arm/boot/dts/imx6sl-evk.dts
index 3f9e041..dab588f 100644
--- a/arch/arm/boot/dts/imx6sl-evk.dts
+++ b/arch/arm/boot/dts/imx6sl-evk.dts
@@ -488,6 +488,10 @@
 	status = "okay";
 };
 
+&snvs-poweroff {
+	status = "okay";
+};
+
 &ssi2 {
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index 505da9e..5e5ed07 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -565,6 +565,12 @@
 					interrupts = <0 19 IRQ_TYPE_LEVEL_HIGH>,
 						     <0 20 IRQ_TYPE_LEVEL_HIGH>;
 				};
+
+				snvs-poweroff: snvs-poweroff@38 {
+					compatible = "fsl,sec-v4.0-poweroff";
+					reg = <0x38 0x4>;
+					status = "disabled";
+				};
 			};
 
 			epit1: epit@...d0000 {
diff --git a/arch/arm/boot/dts/imx6sx-sdb.dts b/arch/arm/boot/dts/imx6sx-sdb.dts
index a3980d9..78dc031 100644
--- a/arch/arm/boot/dts/imx6sx-sdb.dts
+++ b/arch/arm/boot/dts/imx6sx-sdb.dts
@@ -251,6 +251,10 @@
 	};
 };
 
+&snvs-poweroff {
+	status = "okay";
+};
+
 &ssi2 {
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi
index f4b9da6..652be9f 100644
--- a/arch/arm/boot/dts/imx6sx.dtsi
+++ b/arch/arm/boot/dts/imx6sx.dtsi
@@ -668,6 +668,12 @@
 					reg = <0x34 0x58>;
 					interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
 				};
+
+				snvs-poweroff: snvs-poweroff@38 {
+					compatible = "fsl,sec-v4.0-poweroff";
+					reg = <0x38 0x4>;
+					status = "disabled";
+				};
 			};
 
 			epit1: epit@...d0000 {
-- 
1.7.9.5

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