cpufreq: remove at32ap-cpufreq

Since AVR32 arch was removed, at32ap-cpufreq is useless.
Remove this driver.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index d8addbc..608af20 100644 (file)
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -239,16 +239,6 @@ if PPC32 || PPC64
 source "drivers/cpufreq/Kconfig.powerpc"
 endif
 
-if AVR32
-config AVR32_AT32AP_CPUFREQ
-       bool "CPU frequency driver for AT32AP"
-       depends on PLATFORM_AT32AP
-       default n
-       help
-         This enables the CPU frequency driver for AT32AP processors.
-         If in doubt, say N.
-endif
-
 if IA64
 config IA64_ACPI_CPUFREQ
        tristate "ACPI Processor P-States driver"

diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index e07715c..c60c1e1 100644 (file)
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -100,7 +100,6 @@ obj-$(CONFIG_POWERNV_CPUFREQ)               += powernv-cpufreq.o
 
 ##################################################################################
 # Other platform drivers
-obj-$(CONFIG_AVR32_AT32AP_CPUFREQ)     += at32ap-cpufreq.o
 obj-$(CONFIG_BFIN_CPU_FREQ)            += blackfin-cpufreq.o
 obj-$(CONFIG_BMIPS_CPUFREQ)            += bmips-cpufreq.o
 obj-$(CONFIG_CRIS_MACH_ARTPEC3)                += cris-artpec3-cpufreq.o

diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c
deleted file mode 100644 (file)
index 7b612c8..0000000
--- a/drivers/cpufreq/at32ap-cpufreq.c
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * Copyright (C) 2004-2007 Atmel Corporation
- *
- * Based on MIPS implementation arch/mips/kernel/time.c
- *   Copyright 2001 MontaVista Software Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*#define DEBUG*/
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/cpufreq.h>
-#include <linux/io.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/export.h>
-#include <linux/slab.h>
-
-static struct cpufreq_frequency_table *freq_table;
-
-static unsigned int    ref_freq;
-static unsigned long   loops_per_jiffy_ref;
-
-static int at32_set_target(struct cpufreq_policy *policy, unsigned int index)
-{
-       unsigned int old_freq, new_freq;
-
-       old_freq = policy->cur;
-       new_freq = freq_table[index].frequency;
-
-       if (!ref_freq) {
-               ref_freq = old_freq;
-               loops_per_jiffy_ref = boot_cpu_data.loops_per_jiffy;
-       }
-
-       if (old_freq < new_freq)
-               boot_cpu_data.loops_per_jiffy = cpufreq_scale(
-                               loops_per_jiffy_ref, ref_freq, new_freq);
-       clk_set_rate(policy->clk, new_freq * 1000);
-       if (new_freq < old_freq)
-               boot_cpu_data.loops_per_jiffy = cpufreq_scale(
-                               loops_per_jiffy_ref, ref_freq, new_freq);
-
-       return 0;
-}
-
-static int at32_cpufreq_driver_init(struct cpufreq_policy *policy)
-{
-       unsigned int frequency, rate, min_freq;
-       struct clk *cpuclk;
-       int retval, steps, i;
-
-       if (policy->cpu != 0)
-               return -EINVAL;
-
-       cpuclk = clk_get(NULL, "cpu");
-       if (IS_ERR(cpuclk)) {
-               pr_debug("cpufreq: could not get CPU clk\n");
-               retval = PTR_ERR(cpuclk);
-               goto out_err;
-       }
-
-       min_freq = (clk_round_rate(cpuclk, 1) + 500) / 1000;
-       frequency = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000;
-       policy->cpuinfo.transition_latency = 0;
-
-       /*
-        * AVR32 CPU frequency rate scales in power of two between maximum and
-        * minimum, also add space for the table end marker.
-        *
-        * Further validate that the frequency is usable, and append it to the
-        * frequency table.
-        */
-       steps = fls(frequency / min_freq) + 1;
-       freq_table = kzalloc(steps * sizeof(struct cpufreq_frequency_table),
-                       GFP_KERNEL);
-       if (!freq_table) {
-               retval = -ENOMEM;
-               goto out_err_put_clk;
-       }
-
-       for (i = 0; i < (steps - 1); i++) {
-               rate = clk_round_rate(cpuclk, frequency * 1000) / 1000;
-
-               if (rate != frequency)
-                       freq_table[i].frequency = CPUFREQ_ENTRY_INVALID;
-               else
-                       freq_table[i].frequency = frequency;
-
-               frequency /= 2;
-       }
-
-       policy->clk = cpuclk;
-       freq_table[steps - 1].frequency = CPUFREQ_TABLE_END;
-
-       retval = cpufreq_table_validate_and_show(policy, freq_table);
-       if (!retval) {
-               printk("cpufreq: AT32AP CPU frequency driver\n");
-               return 0;
-       }
-
-       kfree(freq_table);
-out_err_put_clk:
-       clk_put(cpuclk);
-out_err:
-       return retval;
-}
-
-static struct cpufreq_driver at32_driver = {
-       .name           = "at32ap",
-       .init           = at32_cpufreq_driver_init,
-       .verify         = cpufreq_generic_frequency_table_verify,
-       .target_index   = at32_set_target,
-       .get            = cpufreq_generic_get,
-       .flags          = CPUFREQ_STICKY,
-};
-
-static int __init at32_cpufreq_init(void)
-{
-       return cpufreq_register_driver(&at32_driver);
-}
-late_initcall(at32_cpufreq_init);