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Message-Id: <20180118200202.11883-1-clabbe.montjoie@gmail.com>
Date: Thu, 18 Jan 2018 21:02:02 +0100
From: Corentin Labbe <clabbe.montjoie@...il.com>
To: rjw@...ysocki.net, viresh.kumar@...aro.org
Cc: linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
Corentin Labbe <clabbe.montjoie@...il.com>
Subject: [PATCH] cpufreq: remove at32ap-cpufreq
Since AVR32 arch was removed, at32ap-cpufreq is useless.
Remove this driver.
Signed-off-by: Corentin Labbe <clabbe.montjoie@...il.com>
---
drivers/cpufreq/Kconfig | 10 ---
drivers/cpufreq/Makefile | 1 -
drivers/cpufreq/at32ap-cpufreq.c | 127 ---------------------------------------
3 files changed, 138 deletions(-)
delete mode 100644 drivers/cpufreq/at32ap-cpufreq.c
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index d8addbce40bc..608af20a3494 100644
--- 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 e07715ce8844..c60c1e141d9d 100644
--- 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
index 7b612c8bb09e..000000000000
--- 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);
--
2.13.6
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