These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

7 files changed, 19 insertions, 13 deletions

diff --git a/kernel/arch/arm/mach-tegra/Kconfig b/kernel/arch/arm/mach-tegra/Kconfig
index 5d1a318f1..0fa4c5f8b 100644
--- a/kernel/arch/arm/mach-tegra/Kconfig
+++ b/kernel/arch/arm/mach-tegra/Kconfig
@@ -8,6 +8,7 @@ menuconfig ARCH_TEGRA
 	select HAVE_ARM_SCU if SMP
 	select HAVE_ARM_TWD if SMP
 	select PINCTRL
+	select PM_OPP
 	select ARCH_HAS_RESET_CONTROLLER
 	select RESET_CONTROLLER
 	select SOC_BUS
diff --git a/kernel/arch/arm/mach-tegra/board-paz00.c b/kernel/arch/arm/mach-tegra/board-paz00.c
index fbe74c680..49d1110cf 100644
--- a/kernel/arch/arm/mach-tegra/board-paz00.c
+++ b/kernel/arch/arm/mach-tegra/board-paz00.c
@@ -39,8 +39,8 @@ static struct platform_device wifi_rfkill_device = {
 static struct gpiod_lookup_table wifi_gpio_lookup = {
 	.dev_id = "rfkill_gpio",
 	.table = {
-		GPIO_LOOKUP_IDX("tegra-gpio", 25, NULL, 0, 0),
-		GPIO_LOOKUP_IDX("tegra-gpio", 85, NULL, 1, 0),
+		GPIO_LOOKUP("tegra-gpio", 25, "reset", 0),
+		GPIO_LOOKUP("tegra-gpio", 85, "shutdown", 0),
 		{ },
 	},
 };
diff --git a/kernel/arch/arm/mach-tegra/cpuidle-tegra114.c b/kernel/arch/arm/mach-tegra/cpuidle-tegra114.c
index 155807fa6..9157546fe 100644
--- a/kernel/arch/arm/mach-tegra/cpuidle-tegra114.c
+++ b/kernel/arch/arm/mach-tegra/cpuidle-tegra114.c
@@ -24,6 +24,7 @@
 #include <asm/cpuidle.h>
 #include <asm/smp_plat.h>
 #include <asm/suspend.h>
+#include <asm/psci.h>
 
 #include "pm.h"
 #include "sleep.h"
@@ -44,16 +45,12 @@ static int tegra114_idle_power_down(struct cpuidle_device *dev,
 	tegra_set_cpu_in_lp2();
 	cpu_pm_enter();
 
-	tick_broadcast_enter();
-
 	call_firmware_op(prepare_idle);
 
 	/* Do suspend by ourselves if the firmware does not implement it */
 	if (call_firmware_op(do_idle, 0) == -ENOSYS)
 		cpu_suspend(0, tegra30_sleep_cpu_secondary_finish);
 
-	tick_broadcast_exit();
-
 	cpu_pm_exit();
 	tegra_clear_cpu_in_lp2();
 
@@ -61,6 +58,13 @@ static int tegra114_idle_power_down(struct cpuidle_device *dev,
 
 	return index;
 }
+
+static void tegra114_idle_enter_freeze(struct cpuidle_device *dev,
+				       struct cpuidle_driver *drv,
+				       int index)
+{
+       tegra114_idle_power_down(dev, drv, index);
+}
 #endif
 
 static struct cpuidle_driver tegra_idle_driver = {
@@ -72,8 +76,10 @@ static struct cpuidle_driver tegra_idle_driver = {
 #ifdef CONFIG_PM_SLEEP
 		[1] = {
 			.enter			= tegra114_idle_power_down,
+			.enter_freeze		= tegra114_idle_enter_freeze,
 			.exit_latency		= 500,
 			.target_residency	= 1000,
+			.flags			= CPUIDLE_FLAG_TIMER_STOP,
 			.power_usage		= 0,
 			.name			= "powered-down",
 			.desc			= "CPU power gated",
@@ -84,5 +90,8 @@ static struct cpuidle_driver tegra_idle_driver = {
 
 int __init tegra114_cpuidle_init(void)
 {
-	return cpuidle_register(&tegra_idle_driver, NULL);
+	if (!psci_smp_available())
+		return cpuidle_register(&tegra_idle_driver, NULL);
+
+	return 0;
 }
diff --git a/kernel/arch/arm/mach-tegra/hotplug.c b/kernel/arch/arm/mach-tegra/hotplug.c
index 6fc71f153..1b129899a 100644
--- a/kernel/arch/arm/mach-tegra/hotplug.c
+++ b/kernel/arch/arm/mach-tegra/hotplug.c
@@ -37,7 +37,7 @@ int tegra_cpu_kill(unsigned cpu)
  *
  * Called with IRQs disabled
  */
-void __ref tegra_cpu_die(unsigned int cpu)
+void tegra_cpu_die(unsigned int cpu)
 {
 	if (!tegra_hotplug_shutdown) {
 		WARN(1, "hotplug is not yet initialized\n");
diff --git a/kernel/arch/arm/mach-tegra/iomap.h b/kernel/arch/arm/mach-tegra/iomap.h
index 81dc950b4..9e5b2f869 100644
--- a/kernel/arch/arm/mach-tegra/iomap.h
+++ b/kernel/arch/arm/mach-tegra/iomap.h
@@ -82,9 +82,6 @@
 #define TEGRA_EMC_BASE			0x7000F400
 #define TEGRA_EMC_SIZE			SZ_1K
 
-#define TEGRA_FUSE_BASE			0x7000F800
-#define TEGRA_FUSE_SIZE			SZ_1K
-
 #define TEGRA_EMC0_BASE			0x7001A000
 #define TEGRA_EMC0_SIZE			SZ_2K
 
diff --git a/kernel/arch/arm/mach-tegra/sleep-tegra30.S b/kernel/arch/arm/mach-tegra/sleep-tegra30.S
index 5d8d13aea..9a2f0b051 100644
--- a/kernel/arch/arm/mach-tegra/sleep-tegra30.S
+++ b/kernel/arch/arm/mach-tegra/sleep-tegra30.S
@@ -223,7 +223,7 @@ wfe_war:
 	b	__cpu_reset_again
 
 	/*
-	 * 38 nop's, which fills reset of wfe cache line and
+	 * 38 nop's, which fills rest of wfe cache line and
 	 * 4 more cachelines with nop
 	 */
 	.rept 38
diff --git a/kernel/arch/arm/mach-tegra/tegra.c b/kernel/arch/arm/mach-tegra/tegra.c
index 861d88486..2378fa560 100644
--- a/kernel/arch/arm/mach-tegra/tegra.c
+++ b/kernel/arch/arm/mach-tegra/tegra.c
@@ -163,6 +163,5 @@ DT_MACHINE_START(TEGRA_DT, "NVIDIA Tegra SoC (Flattened Device Tree)")
 	.init_irq	= tegra_dt_init_irq,
 	.init_machine	= tegra_dt_init,
 	.init_late	= tegra_dt_init_late,
-	.restart	= tegra_pmc_restart,
 	.dt_compat	= tegra_dt_board_compat,
 MACHINE_END