12 files changed, 41 insertions, 408 deletions

diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index d1c4893894c..dbc653ea851 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -18,8 +18,8 @@ config ARCH_TEGRA_2x_SOC
 	select PL310_ERRATA_727915 if CACHE_L2X0
 	select PL310_ERRATA_769419 if CACHE_L2X0
 	select USB_ARCH_HAS_EHCI if USB_SUPPORT
-	select USB_ULPI if USB
-	select USB_ULPI_VIEWPORT if USB_SUPPORT
+	select USB_ULPI if USB_PHY
+	select USB_ULPI_VIEWPORT if USB_PHY
 	help
 	  Support for NVIDIA Tegra AP20 and T20 processors, based on the
 	  ARM CortexA9MP CPU and the ARM PL310 L2 cache controller
@@ -37,8 +37,8 @@ config ARCH_TEGRA_3x_SOC
 	select PINCTRL_TEGRA30
 	select PL310_ERRATA_769419 if CACHE_L2X0
 	select USB_ARCH_HAS_EHCI if USB_SUPPORT
-	select USB_ULPI if USB
-	select USB_ULPI_VIEWPORT if USB_SUPPORT
+	select USB_ULPI if USB_PHY
+	select USB_ULPI_VIEWPORT if USB_PHY
 	help
 	  Support for NVIDIA Tegra T30 processor family, based on the
 	  ARM CortexA9MP CPU and the ARM PL310 L2 cache controller
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index e40326d0e29..b78f0d71b32 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -25,7 +25,6 @@ obj-$(CONFIG_ARCH_TEGRA_3x_SOC)		+= cpuidle-tegra30.o
 endif
 obj-$(CONFIG_SMP)			+= platsmp.o headsmp.o
 obj-$(CONFIG_HOTPLUG_CPU)               += hotplug.o
-obj-$(CONFIG_CPU_FREQ)                  += cpu-tegra.o
 obj-$(CONFIG_TEGRA_PCI)			+= pcie.o
 
 obj-$(CONFIG_ARCH_TEGRA_114_SOC)	+= tegra114_speedo.o
diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c
deleted file mode 100644
index e3d6e15ff18..00000000000
--- a/arch/arm/mach-tegra/cpu-tegra.c
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * arch/arm/mach-tegra/cpu-tegra.c
- *
- * Copyright (C) 2010 Google, Inc.
- *
- * Author:
- *	Colin Cross <ccross@google.com>
- *	Based on arch/arm/plat-omap/cpu-omap.c, (C) 2005 Nokia Corporation
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/cpufreq.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/err.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/suspend.h>
-
-/* Frequency table index must be sequential starting at 0 */
-static struct cpufreq_frequency_table freq_table[] = {
-	{ 0, 216000 },
-	{ 1, 312000 },
-	{ 2, 456000 },
-	{ 3, 608000 },
-	{ 4, 760000 },
-	{ 5, 816000 },
-	{ 6, 912000 },
-	{ 7, 1000000 },
-	{ 8, CPUFREQ_TABLE_END },
-};
-
-#define NUM_CPUS	2
-
-static struct clk *cpu_clk;
-static struct clk *pll_x_clk;
-static struct clk *pll_p_clk;
-static struct clk *emc_clk;
-
-static unsigned long target_cpu_speed[NUM_CPUS];
-static DEFINE_MUTEX(tegra_cpu_lock);
-static bool is_suspended;
-
-static int tegra_verify_speed(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, freq_table);
-}
-
-static unsigned int tegra_getspeed(unsigned int cpu)
-{
-	unsigned long rate;
-
-	if (cpu >= NUM_CPUS)
-		return 0;
-
-	rate = clk_get_rate(cpu_clk) / 1000;
-	return rate;
-}
-
-static int tegra_cpu_clk_set_rate(unsigned long rate)
-{
-	int ret;
-
-	/*
-	 * Take an extra reference to the main pll so it doesn't turn
-	 * off when we move the cpu off of it
-	 */
-	clk_prepare_enable(pll_x_clk);
-
-	ret = clk_set_parent(cpu_clk, pll_p_clk);
-	if (ret) {
-		pr_err("Failed to switch cpu to clock pll_p\n");
-		goto out;
-	}
-
-	if (rate == clk_get_rate(pll_p_clk))
-		goto out;
-
-	ret = clk_set_rate(pll_x_clk, rate);
-	if (ret) {
-		pr_err("Failed to change pll_x to %lu\n", rate);
-		goto out;
-	}
-
-	ret = clk_set_parent(cpu_clk, pll_x_clk);
-	if (ret) {
-		pr_err("Failed to switch cpu to clock pll_x\n");
-		goto out;
-	}
-
-out:
-	clk_disable_unprepare(pll_x_clk);
-	return ret;
-}
-
-static int tegra_update_cpu_speed(unsigned long rate)
-{
-	int ret = 0;
-	struct cpufreq_freqs freqs;
-
-	freqs.old = tegra_getspeed(0);
-	freqs.new = rate;
-
-	if (freqs.old == freqs.new)
-		return ret;
-
-	/*
-	 * Vote on memory bus frequency based on cpu frequency
-	 * This sets the minimum frequency, display or avp may request higher
-	 */
-	if (rate >= 816000)
-		clk_set_rate(emc_clk, 600000000); /* cpu 816 MHz, emc max */
-	else if (rate >= 456000)
-		clk_set_rate(emc_clk, 300000000); /* cpu 456 MHz, emc 150Mhz */
-	else
-		clk_set_rate(emc_clk, 100000000);  /* emc 50Mhz */
-
-	for_each_online_cpu(freqs.cpu)
-		cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-
-#ifdef CONFIG_CPU_FREQ_DEBUG
-	printk(KERN_DEBUG "cpufreq-tegra: transition: %u --> %u\n",
-	       freqs.old, freqs.new);
-#endif
-
-	ret = tegra_cpu_clk_set_rate(freqs.new * 1000);
-	if (ret) {
-		pr_err("cpu-tegra: Failed to set cpu frequency to %d kHz\n",
-			freqs.new);
-		return ret;
-	}
-
-	for_each_online_cpu(freqs.cpu)
-		cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-
-	return 0;
-}
-
-static unsigned long tegra_cpu_highest_speed(void)
-{
-	unsigned long rate = 0;
-	int i;
-
-	for_each_online_cpu(i)
-		rate = max(rate, target_cpu_speed[i]);
-	return rate;
-}
-
-static int tegra_target(struct cpufreq_policy *policy,
-		       unsigned int target_freq,
-		       unsigned int relation)
-{
-	unsigned int idx;
-	unsigned int freq;
-	int ret = 0;
-
-	mutex_lock(&tegra_cpu_lock);
-
-	if (is_suspended) {
-		ret = -EBUSY;
-		goto out;
-	}
-
-	cpufreq_frequency_table_target(policy, freq_table, target_freq,
-		relation, &idx);
-
-	freq = freq_table[idx].frequency;
-
-	target_cpu_speed[policy->cpu] = freq;
-
-	ret = tegra_update_cpu_speed(tegra_cpu_highest_speed());
-
-out:
-	mutex_unlock(&tegra_cpu_lock);
-	return ret;
-}
-
-static int tegra_pm_notify(struct notifier_block *nb, unsigned long event,
-	void *dummy)
-{
-	mutex_lock(&tegra_cpu_lock);
-	if (event == PM_SUSPEND_PREPARE) {
-		is_suspended = true;
-		pr_info("Tegra cpufreq suspend: setting frequency to %d kHz\n",
-			freq_table[0].frequency);
-		tegra_update_cpu_speed(freq_table[0].frequency);
-	} else if (event == PM_POST_SUSPEND) {
-		is_suspended = false;
-	}
-	mutex_unlock(&tegra_cpu_lock);
-
-	return NOTIFY_OK;
-}
-
-static struct notifier_block tegra_cpu_pm_notifier = {
-	.notifier_call = tegra_pm_notify,
-};
-
-static int tegra_cpu_init(struct cpufreq_policy *policy)
-{
-	if (policy->cpu >= NUM_CPUS)
-		return -EINVAL;
-
-	clk_prepare_enable(emc_clk);
-	clk_prepare_enable(cpu_clk);
-
-	cpufreq_frequency_table_cpuinfo(policy, freq_table);
-	cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
-	policy->cur = tegra_getspeed(policy->cpu);
-	target_cpu_speed[policy->cpu] = policy->cur;
-
-	/* FIXME: what's the actual transition time? */
-	policy->cpuinfo.transition_latency = 300 * 1000;
-
-	cpumask_copy(policy->cpus, cpu_possible_mask);
-
-	if (policy->cpu == 0)
-		register_pm_notifier(&tegra_cpu_pm_notifier);
-
-	return 0;
-}
-
-static int tegra_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_cpuinfo(policy, freq_table);
-	clk_disable_unprepare(emc_clk);
-	return 0;
-}
-
-static struct freq_attr *tegra_cpufreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
-static struct cpufreq_driver tegra_cpufreq_driver = {
-	.verify		= tegra_verify_speed,
-	.target		= tegra_target,
-	.get		= tegra_getspeed,
-	.init		= tegra_cpu_init,
-	.exit		= tegra_cpu_exit,
-	.name		= "tegra",
-	.attr		= tegra_cpufreq_attr,
-};
-
-static int __init tegra_cpufreq_init(void)
-{
-	cpu_clk = clk_get_sys(NULL, "cpu");
-	if (IS_ERR(cpu_clk))
-		return PTR_ERR(cpu_clk);
-
-	pll_x_clk = clk_get_sys(NULL, "pll_x");
-	if (IS_ERR(pll_x_clk))
-		return PTR_ERR(pll_x_clk);
-
-	pll_p_clk = clk_get_sys(NULL, "pll_p_cclk");
-	if (IS_ERR(pll_p_clk))
-		return PTR_ERR(pll_p_clk);
-
-	emc_clk = clk_get_sys("cpu", "emc");
-	if (IS_ERR(emc_clk)) {
-		clk_put(cpu_clk);
-		return PTR_ERR(emc_clk);
-	}
-
-	return cpufreq_register_driver(&tegra_cpufreq_driver);
-}
-
-static void __exit tegra_cpufreq_exit(void)
-{
-        cpufreq_unregister_driver(&tegra_cpufreq_driver);
-	clk_put(emc_clk);
-	clk_put(cpu_clk);
-}
-
-
-MODULE_AUTHOR("Colin Cross <ccross@android.com>");
-MODULE_DESCRIPTION("cpufreq driver for Nvidia Tegra2");
-MODULE_LICENSE("GPL");
-module_init(tegra_cpufreq_init);
-module_exit(tegra_cpufreq_exit);
diff --git a/arch/arm/mach-tegra/cpuidle-tegra114.c b/arch/arm/mach-tegra/cpuidle-tegra114.c
index 0f4e8c483b3..1d1c6023f4a 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra114.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra114.c
@@ -23,39 +23,13 @@
 static struct cpuidle_driver tegra_idle_driver = {
 	.name = "tegra_idle",
 	.owner = THIS_MODULE,
-	.en_core_tk_irqen = 1,
 	.state_count = 1,
 	.states = {
 		[0] = ARM_CPUIDLE_WFI_STATE_PWR(600),
 	},
 };
 
-static DEFINE_PER_CPU(struct cpuidle_device, tegra_idle_device);
-
 int __init tegra114_cpuidle_init(void)
 {
-	int ret;
-	unsigned int cpu;
-	struct cpuidle_device *dev;
-	struct cpuidle_driver *drv = &tegra_idle_driver;
-
-	ret = cpuidle_register_driver(&tegra_idle_driver);
-	if (ret) {
-		pr_err("CPUidle driver registration failed\n");
-		return ret;
-	}
-
-	for_each_possible_cpu(cpu) {
-		dev = &per_cpu(tegra_idle_device, cpu);
-		dev->cpu = cpu;
-
-		dev->state_count = drv->state_count;
-		ret = cpuidle_register_device(dev);
-		if (ret) {
-			pr_err("CPU%u: CPUidle device registration failed\n",
-				cpu);
-			return ret;
-		}
-	}
-	return 0;
+	return cpuidle_register(&tegra_idle_driver, NULL);
 }
diff --git a/arch/arm/mach-tegra/cpuidle-tegra20.c b/arch/arm/mach-tegra/cpuidle-tegra20.c
index 8bbbdebed88..0cdba8de8c7 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra20.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra20.c
@@ -43,32 +43,33 @@ static atomic_t abort_barrier;
 static int tegra20_idle_lp2_coupled(struct cpuidle_device *dev,
 				    struct cpuidle_driver *drv,
 				    int index);
+#define TEGRA20_MAX_STATES 2
+#else
+#define TEGRA20_MAX_STATES 1
 #endif
 
-static struct cpuidle_state tegra_idle_states[] = {
-	[0] = ARM_CPUIDLE_WFI_STATE_PWR(600),
-#ifdef CONFIG_PM_SLEEP
-	[1] = {
-		.enter			= tegra20_idle_lp2_coupled,
-		.exit_latency		= 5000,
-		.target_residency	= 10000,
-		.power_usage		= 0,
-		.flags			= CPUIDLE_FLAG_TIME_VALID |
-					  CPUIDLE_FLAG_COUPLED,
-		.name			= "powered-down",
-		.desc			= "CPU power gated",
-	},
-#endif
-};
-
 static struct cpuidle_driver tegra_idle_driver = {
 	.name = "tegra_idle",
 	.owner = THIS_MODULE,
-	.en_core_tk_irqen = 1,
+	.states = {
+		ARM_CPUIDLE_WFI_STATE_PWR(600),
+#ifdef CONFIG_PM_SLEEP
+		{
+			.enter            = tegra20_idle_lp2_coupled,
+			.exit_latency     = 5000,
+			.target_residency = 10000,
+			.power_usage      = 0,
+			.flags            = CPUIDLE_FLAG_TIME_VALID |
+			CPUIDLE_FLAG_COUPLED,
+			.name             = "powered-down",
+			.desc             = "CPU power gated",
+		},
+#endif
+	},
+	.state_count = TEGRA20_MAX_STATES,
+	.safe_state_index = 0,
 };
 
-static DEFINE_PER_CPU(struct cpuidle_device, tegra_idle_device);
-
 #ifdef CONFIG_PM_SLEEP
 #ifdef CONFIG_SMP
 static void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
@@ -213,39 +214,8 @@ static int tegra20_idle_lp2_coupled(struct cpuidle_device *dev,
 
 int __init tegra20_cpuidle_init(void)
 {
-	int ret;
-	unsigned int cpu;
-	struct cpuidle_device *dev;
-	struct cpuidle_driver *drv = &tegra_idle_driver;
-
 #ifdef CONFIG_PM_SLEEP
 	tegra_tear_down_cpu = tegra20_tear_down_cpu;
 #endif
-
-	drv->state_count = ARRAY_SIZE(tegra_idle_states);
-	memcpy(drv->states, tegra_idle_states,
-			drv->state_count * sizeof(drv->states[0]));
-
-	ret = cpuidle_register_driver(&tegra_idle_driver);
-	if (ret) {
-		pr_err("CPUidle driver registration failed\n");
-		return ret;
-	}
-
-	for_each_possible_cpu(cpu) {
-		dev = &per_cpu(tegra_idle_device, cpu);
-		dev->cpu = cpu;
-#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED
-		dev->coupled_cpus = *cpu_possible_mask;
-#endif
-
-		dev->state_count = drv->state_count;
-		ret = cpuidle_register_device(dev);
-		if (ret) {
-			pr_err("CPU%u: CPUidle device registration failed\n",
-				cpu);
-			return ret;
-		}
-	}
-	return 0;
+	return cpuidle_register(&tegra_idle_driver, cpu_possible_mask);
 }
diff --git a/arch/arm/mach-tegra/cpuidle-tegra30.c b/arch/arm/mach-tegra/cpuidle-tegra30.c
index c0931c8bb3e..3cf9aca5f3e 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra30.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra30.c
@@ -43,7 +43,6 @@ static int tegra30_idle_lp2(struct cpuidle_device *dev,
 static struct cpuidle_driver tegra_idle_driver = {
 	.name = "tegra_idle",
 	.owner = THIS_MODULE,
-	.en_core_tk_irqen = 1,
 #ifdef CONFIG_PM_SLEEP
 	.state_count = 2,
 #else
@@ -65,8 +64,6 @@ static struct cpuidle_driver tegra_idle_driver = {
 	},
 };
 
-static DEFINE_PER_CPU(struct cpuidle_device, tegra_idle_device);
-
 #ifdef CONFIG_PM_SLEEP
 static bool tegra30_cpu_cluster_power_down(struct cpuidle_device *dev,
 					   struct cpuidle_driver *drv,
@@ -149,32 +146,8 @@ static int tegra30_idle_lp2(struct cpuidle_device *dev,
 
 int __init tegra30_cpuidle_init(void)
 {
-	int ret;
-	unsigned int cpu;
-	struct cpuidle_device *dev;
-	struct cpuidle_driver *drv = &tegra_idle_driver;
-
 #ifdef CONFIG_PM_SLEEP
 	tegra_tear_down_cpu = tegra30_tear_down_cpu;
 #endif
-
-	ret = cpuidle_register_driver(&tegra_idle_driver);
-	if (ret) {
-		pr_err("CPUidle driver registration failed\n");
-		return ret;
-	}
-
-	for_each_possible_cpu(cpu) {
-		dev = &per_cpu(tegra_idle_device, cpu);
-		dev->cpu = cpu;
-
-		dev->state_count = drv->state_count;
-		ret = cpuidle_register_device(dev);
-		if (ret) {
-			pr_err("CPU%u: CPUidle device registration failed\n",
-				cpu);
-			return ret;
-		}
-	}
-	return 0;
+	return cpuidle_register(&tegra_idle_driver, NULL);
 }
diff --git a/arch/arm/mach-tegra/pm.c b/arch/arm/mach-tegra/pm.c
index d647e9e0e19..45cf52c7e52 100644
--- a/arch/arm/mach-tegra/pm.c
+++ b/arch/arm/mach-tegra/pm.c
@@ -123,6 +123,11 @@ bool tegra_set_cpu_in_lp2(int phy_cpu_id)
 	return last_cpu;
 }
 
+int tegra_cpu_do_idle(void)
+{
+	return cpu_do_idle();
+}
+
 static int tegra_sleep_cpu(unsigned long v2p)
 {
 	setup_mm_for_reboot();
diff --git a/arch/arm/mach-tegra/powergate.c b/arch/arm/mach-tegra/powergate.c
index c6bc8f85759..af9067e2867 100644
--- a/arch/arm/mach-tegra/powergate.c
+++ b/arch/arm/mach-tegra/powergate.c
@@ -22,6 +22,7 @@
 #include <linux/debugfs.h>
 #include <linux/delay.h>
 #include <linux/err.h>
+#include <linux/export.h>
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/seq_file.h>
@@ -75,7 +76,7 @@ static int tegra_powergate_set(int id, bool new_state)
 
 	if (status == new_state) {
 		spin_unlock_irqrestore(&tegra_powergate_lock, flags);
-		return -EINVAL;
+		return 0;
 	}
 
 	pmc_write(PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE);
@@ -168,6 +169,7 @@ err_clk:
 err_power:
 	return ret;
 }
+EXPORT_SYMBOL(tegra_powergate_sequence_power_up);
 
 int tegra_cpu_powergate_id(int cpuid)
 {
diff --git a/arch/arm/mach-tegra/reset-handler.S b/arch/arm/mach-tegra/reset-handler.S
index 1676aba5e7b..e6de88a2ea0 100644
--- a/arch/arm/mach-tegra/reset-handler.S
+++ b/arch/arm/mach-tegra/reset-handler.S
@@ -44,6 +44,7 @@ ENTRY(tegra_resume)
 
 	cpu_id	r0
 	cmp	r0, #0				@ CPU0?
+ THUMB(	it	ne )
 	bne	cpu_resume			@ no
 
 #ifdef CONFIG_ARCH_TEGRA_3x_SOC
diff --git a/arch/arm/mach-tegra/sleep-tegra20.S b/arch/arm/mach-tegra/sleep-tegra20.S
index 9f6bfafdd51..e3f2417c420 100644
--- a/arch/arm/mach-tegra/sleep-tegra20.S
+++ b/arch/arm/mach-tegra/sleep-tegra20.S
@@ -197,7 +197,7 @@ ENTRY(tegra20_sleep_cpu_secondary_finish)
 	mov	r3, #CPU_RESETTABLE
 	str	r3, [r0]
 
-	bl	cpu_do_idle
+	bl	tegra_cpu_do_idle
 
 	/*
 	 * cpu may be reset while in wfi, which will return through
diff --git a/arch/arm/mach-tegra/sleep-tegra30.S b/arch/arm/mach-tegra/sleep-tegra30.S
index 63a15bd9b65..d29dfcce948 100644
--- a/arch/arm/mach-tegra/sleep-tegra30.S
+++ b/arch/arm/mach-tegra/sleep-tegra30.S
@@ -66,7 +66,9 @@ ENTRY(tegra30_cpu_shutdown)
 		FLOW_CTRL_CSR_INTR_FLAG | FLOW_CTRL_CSR_EVENT_FLAG | \
 		FLOW_CTRL_CSR_ENABLE
 	mov	r4, #(1 << 4)
-	orr	r12, r12, r4, lsl r3
+ ARM(	orr	r12, r12, r4, lsl r3	)
+ THUMB(	lsl	r4, r4, r3		)
+ THUMB(	orr	r12, r12, r4		)
 	str	r12, [r1]
 
 	/* Halt this CPU. */
diff --git a/arch/arm/mach-tegra/sleep.h b/arch/arm/mach-tegra/sleep.h
index 970ebd5138b..2080fb12ce2 100644
--- a/arch/arm/mach-tegra/sleep.h
+++ b/arch/arm/mach-tegra/sleep.h
@@ -92,7 +92,7 @@
 
 #ifdef CONFIG_CACHE_L2X0
 .macro l2_cache_resume, tmp1, tmp2, tmp3, phys_l2x0_saved_regs
-	adr	\tmp1, \phys_l2x0_saved_regs
+	W(adr)	\tmp1, \phys_l2x0_saved_regs
 	ldr	\tmp1, [\tmp1]
 	ldr	\tmp2, [\tmp1, #L2X0_R_PHY_BASE]
 	ldr	\tmp3, [\tmp2, #L2X0_CTRL]