From 6e75d9ba4cb6a34d4a45d1db38d48d563e86ee75 Mon Sep 17 00:00:00 2001
From: "Venkata(Muni) Anda" <muni@nvidia.com>
Date: Fri, 22 Jan 2010 15:20:19 -0800
Subject: tegra: Hooked pm_power_off callback to the Board adaptation.

When the systemn is powered off, pm_power_off callback is called which
sets the voltage rail corresponding to the GUID NV_VDD_SoC_ODM_ID to Off.

So, to use the power off feature, implement the NV_VDD_SoC_ODM_ID GUID to power
rail mapping and PMU odm adaptation to turn off that rail.

Change-Id: I4c439325cd14bb848f100b3e7ddc029a20cd0c9d
---
 arch/arm/mach-tegra/board_nvodm.c        | 17 ++++++++++++-----
 arch/arm/mach-tegra/include/mach/board.h |  6 ++++++
 arch/arm/mach-tegra/include/mach/pci.h   |  2 --
 arch/arm/mach-tegra/pci.c                |  3 ++-
 4 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/arch/arm/mach-tegra/board_nvodm.c b/arch/arm/mach-tegra/board_nvodm.c
index 237844085c84..b1404b6ff00f 100644
--- a/arch/arm/mach-tegra/board_nvodm.c
+++ b/arch/arm/mach-tegra/board_nvodm.c
@@ -26,6 +26,7 @@
 #include <linux/platform_device.h>
 #include <linux/synaptics_i2c_rmi.h>
 #include <linux/i2c.h>
+#include <linux/pm.h>
 #include <linux/spi/spi.h>
 
 #include <asm/mach-types.h>
@@ -56,7 +57,6 @@
 #include "mach/nvrm_linux.h"
 #include "nvassert.h"
 #include "nvodm_query_discovery.h"
-#include "mach/pci.h"
 
 #include <../../../drivers/staging/android/timed_output.h>
 
@@ -277,13 +277,13 @@ static void __init NvConfigDebugConsole(
     return;
 }
 
-void __init pci_tegra_power(int on)
+void tegra_set_voltage(NvU64 guid, int on)
 {
 	u32 settling_time;
 	const NvOdmPeripheralConnectivity *con = NULL;
 	int i;
 
-	con = NvOdmPeripheralGetGuid(NV_VDD_PEX_CLK_ODM_ID);
+	con = NvOdmPeripheralGetGuid(guid);
 	if (con == NULL)
 		return;
 
@@ -311,6 +311,12 @@ extern void __init tegra_clk_init(void);
 extern void __init tegra_init_snor_controller(void);
 #endif
 
+
+static void tegra_system_power_off(void)
+{
+	tegra_set_voltage(NV_VDD_SoC_ODM_ID, 0);
+}
+
 #if !(defined(CONFIG_ENC28J60) && defined(CONFIG_SPI_TEGRA))
 #define register_enc28j60() do {} while (0)
 #else
@@ -476,11 +482,12 @@ static void __init tegra_machine_init(void)
 #endif
 
 #ifdef CONFIG_TEGRA_PCI
-	pci_tegra_power(1);
+	tegra_set_voltage( NV_VDD_PEX_CLK_ODM_ID, 1);
 #else
-	pci_tegra_power(0);
+	tegra_set_voltage( NV_VDD_PEX_CLK_ODM_ID, 0);
 #endif
 
+	pm_power_off = tegra_system_power_off;
 }
 
 MACHINE_START(TEGRA_GENERIC, "Tegra generic")
diff --git a/arch/arm/mach-tegra/include/mach/board.h b/arch/arm/mach-tegra/include/mach/board.h
index 10f0f0232b90..51e85fdb7bb5 100644
--- a/arch/arm/mach-tegra/include/mach/board.h
+++ b/arch/arm/mach-tegra/include/mach/board.h
@@ -22,5 +22,11 @@
 #define __MACH_TEGRA_BOARD_H
 
 #include <linux/types.h>
+#include "nvodm_pmu.h"
+#include "mach/nvrm_linux.h"
+#include "nvodm_query_discovery.h"
+
+/* ON/off power rail given the GUID */
+void tegra_set_voltage(NvU64 guid, int on);
 
 #endif
diff --git a/arch/arm/mach-tegra/include/mach/pci.h b/arch/arm/mach-tegra/include/mach/pci.h
index 81f149717d05..e5eac3ad5640 100644
--- a/arch/arm/mach-tegra/include/mach/pci.h
+++ b/arch/arm/mach-tegra/include/mach/pci.h
@@ -320,6 +320,4 @@ static inline void __iomem *pci_tegra_config_addr(u8 bus_number,
 
 void pci_tegra_enumerate(void);
 
-void __init pci_tegra_power(int on);
-
 #endif
diff --git a/arch/arm/mach-tegra/pci.c b/arch/arm/mach-tegra/pci.c
index 11cafe2d85ae..5118692b1b79 100644
--- a/arch/arm/mach-tegra/pci.c
+++ b/arch/arm/mach-tegra/pci.c
@@ -33,6 +33,7 @@
 
 #include <mach/pci.h>
 #include <mach/nvrm_linux.h>
+#include <mach/board.h>
 
 #include "nvrm_pmu.h"
 #include "nvodm_query_discovery.h"
@@ -362,7 +363,7 @@ static int __init pci_tegra_setup(int nr, struct pci_sys_data *data)
 			0, NULL);
 		NvRmPowerModuleClockControl(s_hRmGlobal, NvRmPrivModuleID_Pcie,
 			pci_tegra_powerid, NV_FALSE);
-		pci_tegra_power(0);
+		tegra_set_voltage(NV_VDD_PEX_CLK_ODM_ID, 0);
 		return 0;
 	}
 	pci_tegra_device_attached = true;
-- 
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