We are using generic cpufreq-cpu0 driver, so lets get rid of platform specific
tegra-cpufreq.c driver.

Signed-off-by: Viresh Kumar <viresh.ku...@linaro.org>
---
 drivers/cpufreq/Makefile        |   1 -
 drivers/cpufreq/tegra-cpufreq.c | 291 ----------------------------------------
 2 files changed, 292 deletions(-)
 delete mode 100644 drivers/cpufreq/tegra-cpufreq.c

diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index ad5866c..e74b3ee 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -76,7 +76,6 @@ obj-$(CONFIG_ARM_S5PV210_CPUFREQ)     += s5pv210-cpufreq.o
 obj-$(CONFIG_ARM_SA1100_CPUFREQ)       += sa1100-cpufreq.o
 obj-$(CONFIG_ARM_SA1110_CPUFREQ)       += sa1110-cpufreq.o
 obj-$(CONFIG_ARM_SPEAR_CPUFREQ)                += spear-cpufreq.o
-obj-$(CONFIG_ARM_TEGRA_CPUFREQ)                += tegra-cpufreq.o
 
 
##################################################################################
 # PowerPC platform drivers
diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
deleted file mode 100644
index cd66b85..0000000
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ /dev/null
@@ -1,291 +0,0 @@
-/*
- * Copyright (C) 2010 Google, Inc.
- *
- * Author:
- *     Colin Cross <ccr...@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>
-
-static struct cpufreq_frequency_table freq_table[] = {
-       { .frequency = 216000 },
-       { .frequency = 312000 },
-       { .frequency = 456000 },
-       { .frequency = 608000 },
-       { .frequency = 760000 },
-       { .frequency = 816000 },
-       { .frequency = 912000 },
-       { .frequency = 1000000 },
-       { .frequency = 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(struct cpufreq_policy *policy,
-               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 */
-
-       cpufreq_notify_transition(policy, &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);
-               freqs.new = freqs.old;
-       }
-
-       cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
-       return ret;
-}
-
-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(policy, 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) {
-               struct cpufreq_policy *policy = cpufreq_cpu_get(0);
-               is_suspended = true;
-               pr_info("Tegra cpufreq suspend: setting frequency to %d kHz\n",
-                       freq_table[0].frequency);
-               tegra_update_cpu_speed(policy, freq_table[0].frequency);
-               cpufreq_cpu_put(policy);
-       } 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 <ccr...@android.com>");
-MODULE_DESCRIPTION("cpufreq driver for Nvidia Tegra2");
-MODULE_LICENSE("GPL");
-module_init(tegra_cpufreq_init);
-module_exit(tegra_cpufreq_exit);
-- 
1.7.12.rc2.18.g61b472e

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to