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    Subject[PATCH 07/22] cpufreq: remove the sh-cpufreq driver
    Date
    Now that arch/sh is removed this driver is dead code.

    Signed-off-by: Christoph Hellwig <hch@lst.de>
    ---
    drivers/cpufreq/Kconfig | 14 ---
    drivers/cpufreq/Makefile | 1 -
    drivers/cpufreq/sh-cpufreq.c | 175 -----------------------------------
    3 files changed, 190 deletions(-)
    delete mode 100644 drivers/cpufreq/sh-cpufreq.c

    diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
    index 2a84fc63371e2e..75a7a486308d8c 100644
    --- a/drivers/cpufreq/Kconfig
    +++ b/drivers/cpufreq/Kconfig
    @@ -298,20 +298,6 @@ config SPARC_US2E_CPUFREQ
    If in doubt, say N.
    endif

    -if SUPERH
    -config SH_CPU_FREQ
    - tristate "SuperH CPU Frequency driver"
    - help
    - This adds the cpufreq driver for SuperH. Any CPU that supports
    - clock rate rounding through the clock framework can use this
    - driver. While it will make the kernel slightly larger, this is
    - harmless for CPUs that don't support rate rounding. The driver
    - will also generate a notice in the boot log before disabling
    - itself if the CPU in question is not capable of rate rounding.
    -
    - If unsure, say N.
    -endif
    -
    config QORIQ_CPUFREQ
    tristate "CPU frequency scaling driver for Freescale QorIQ SoCs"
    depends on OF && COMMON_CLK
    diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
    index 32a7029e25ed81..9c16e77e3e87c0 100644
    --- a/drivers/cpufreq/Makefile
    +++ b/drivers/cpufreq/Makefile
    @@ -112,6 +112,5 @@ obj-$(CONFIG_BMIPS_CPUFREQ) += bmips-cpufreq.o
    obj-$(CONFIG_IA64_ACPI_CPUFREQ) += ia64-acpi-cpufreq.o
    obj-$(CONFIG_LOONGSON2_CPUFREQ) += loongson2_cpufreq.o
    obj-$(CONFIG_LOONGSON1_CPUFREQ) += loongson1-cpufreq.o
    -obj-$(CONFIG_SH_CPU_FREQ) += sh-cpufreq.o
    obj-$(CONFIG_SPARC_US2E_CPUFREQ) += sparc-us2e-cpufreq.o
    obj-$(CONFIG_SPARC_US3_CPUFREQ) += sparc-us3-cpufreq.o
    diff --git a/drivers/cpufreq/sh-cpufreq.c b/drivers/cpufreq/sh-cpufreq.c
    deleted file mode 100644
    index b8704232c27b24..00000000000000
    --- a/drivers/cpufreq/sh-cpufreq.c
    +++ /dev/null
    @@ -1,175 +0,0 @@
    -/*
    - * cpufreq driver for the SuperH processors.
    - *
    - * Copyright (C) 2002 - 2012 Paul Mundt
    - * Copyright (C) 2002 M. R. Brown
    - *
    - * Clock framework bits from arch/avr32/mach-at32ap/cpufreq.c
    - *
    - * Copyright (C) 2004-2007 Atmel Corporation
    - *
    - * This file is subject to the terms and conditions of the GNU General Public
    - * License. See the file "COPYING" in the main directory of this archive
    - * for more details.
    - */
    -#define pr_fmt(fmt) "cpufreq: " fmt
    -
    -#include <linux/types.h>
    -#include <linux/cpufreq.h>
    -#include <linux/kernel.h>
    -#include <linux/module.h>
    -#include <linux/init.h>
    -#include <linux/err.h>
    -#include <linux/cpumask.h>
    -#include <linux/cpu.h>
    -#include <linux/smp.h>
    -#include <linux/clk.h>
    -#include <linux/percpu.h>
    -#include <linux/sh_clk.h>
    -
    -static DEFINE_PER_CPU(struct clk, sh_cpuclk);
    -
    -struct cpufreq_target {
    - struct cpufreq_policy *policy;
    - unsigned int freq;
    -};
    -
    -static unsigned int sh_cpufreq_get(unsigned int cpu)
    -{
    - return (clk_get_rate(&per_cpu(sh_cpuclk, cpu)) + 500) / 1000;
    -}
    -
    -static long __sh_cpufreq_target(void *arg)
    -{
    - struct cpufreq_target *target = arg;
    - struct cpufreq_policy *policy = target->policy;
    - int cpu = policy->cpu;
    - struct clk *cpuclk = &per_cpu(sh_cpuclk, cpu);
    - struct cpufreq_freqs freqs;
    - struct device *dev;
    - long freq;
    -
    - if (smp_processor_id() != cpu)
    - return -ENODEV;
    -
    - dev = get_cpu_device(cpu);
    -
    - /* Convert target_freq from kHz to Hz */
    - freq = clk_round_rate(cpuclk, target->freq * 1000);
    -
    - if (freq < (policy->min * 1000) || freq > (policy->max * 1000))
    - return -EINVAL;
    -
    - dev_dbg(dev, "requested frequency %u Hz\n", target->freq * 1000);
    -
    - freqs.old = sh_cpufreq_get(cpu);
    - freqs.new = (freq + 500) / 1000;
    - freqs.flags = 0;
    -
    - cpufreq_freq_transition_begin(target->policy, &freqs);
    - clk_set_rate(cpuclk, freq);
    - cpufreq_freq_transition_end(target->policy, &freqs, 0);
    -
    - dev_dbg(dev, "set frequency %lu Hz\n", freq);
    - return 0;
    -}
    -
    -/*
    - * Here we notify other drivers of the proposed change and the final change.
    - */
    -static int sh_cpufreq_target(struct cpufreq_policy *policy,
    - unsigned int target_freq,
    - unsigned int relation)
    -{
    - struct cpufreq_target data = { .policy = policy, .freq = target_freq };
    -
    - return work_on_cpu(policy->cpu, __sh_cpufreq_target, &data);
    -}
    -
    -static int sh_cpufreq_verify(struct cpufreq_policy_data *policy)
    -{
    - struct clk *cpuclk = &per_cpu(sh_cpuclk, policy->cpu);
    - struct cpufreq_frequency_table *freq_table;
    -
    - freq_table = cpuclk->nr_freqs ? cpuclk->freq_table : NULL;
    - if (freq_table)
    - return cpufreq_frequency_table_verify(policy, freq_table);
    -
    - cpufreq_verify_within_cpu_limits(policy);
    -
    - policy->min = (clk_round_rate(cpuclk, 1) + 500) / 1000;
    - policy->max = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000;
    -
    - cpufreq_verify_within_cpu_limits(policy);
    - return 0;
    -}
    -
    -static int sh_cpufreq_cpu_init(struct cpufreq_policy *policy)
    -{
    - unsigned int cpu = policy->cpu;
    - struct clk *cpuclk = &per_cpu(sh_cpuclk, cpu);
    - struct cpufreq_frequency_table *freq_table;
    - struct device *dev;
    -
    - dev = get_cpu_device(cpu);
    -
    - cpuclk = clk_get(dev, "cpu_clk");
    - if (IS_ERR(cpuclk)) {
    - dev_err(dev, "couldn't get CPU clk\n");
    - return PTR_ERR(cpuclk);
    - }
    -
    - freq_table = cpuclk->nr_freqs ? cpuclk->freq_table : NULL;
    - if (freq_table) {
    - policy->freq_table = freq_table;
    - } else {
    - dev_notice(dev, "no frequency table found, falling back "
    - "to rate rounding.\n");
    -
    - policy->min = policy->cpuinfo.min_freq =
    - (clk_round_rate(cpuclk, 1) + 500) / 1000;
    - policy->max = policy->cpuinfo.max_freq =
    - (clk_round_rate(cpuclk, ~0UL) + 500) / 1000;
    - }
    -
    - return 0;
    -}
    -
    -static int sh_cpufreq_cpu_exit(struct cpufreq_policy *policy)
    -{
    - unsigned int cpu = policy->cpu;
    - struct clk *cpuclk = &per_cpu(sh_cpuclk, cpu);
    -
    - clk_put(cpuclk);
    -
    - return 0;
    -}
    -
    -static struct cpufreq_driver sh_cpufreq_driver = {
    - .name = "sh",
    - .flags = CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING,
    - .get = sh_cpufreq_get,
    - .target = sh_cpufreq_target,
    - .verify = sh_cpufreq_verify,
    - .init = sh_cpufreq_cpu_init,
    - .exit = sh_cpufreq_cpu_exit,
    - .attr = cpufreq_generic_attr,
    -};
    -
    -static int __init sh_cpufreq_module_init(void)
    -{
    - pr_notice("SuperH CPU frequency driver.\n");
    - return cpufreq_register_driver(&sh_cpufreq_driver);
    -}
    -
    -static void __exit sh_cpufreq_module_exit(void)
    -{
    - cpufreq_unregister_driver(&sh_cpufreq_driver);
    -}
    -
    -module_init(sh_cpufreq_module_init);
    -module_exit(sh_cpufreq_module_exit);
    -
    -MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>");
    -MODULE_DESCRIPTION("cpufreq driver for SuperH");
    -MODULE_LICENSE("GPL");
    --
    2.39.0
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