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cpufreq: dbx500: Delete obsolete driver 

We have moved the Ux500 over to use the generic DT based
cpufreq driver, so delete the old custom driver.

At the same time select CPUFREQ_DT from the machine's
Kconfig in order to satisfy the "default ARCH_U8500"
selection on the old driver.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Linus Walleij 2017-08-16 10:19:14 +02:00 committed by Rafael J. Wysocki
parent 836a1e25df
commit 919096f7f3
4 changed files with 1 additions and 113 deletions
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1
arch/arm/mach-ux500/Kconfig
View File

@ -9,6 +9,7 @@ menuconfig ARCH_U8500
select ARM_GIC
select CACHE_L2X0
select CLKSRC_NOMADIK_MTU
select CPUFREQ_DT
select GPIOLIB
select HAVE_ARM_SCU if SMP
select HAVE_ARM_TWD if SMP

9
drivers/cpufreq/Kconfig.arm
View File

@ -71,15 +71,6 @@ config ARM_HIGHBANK_CPUFREQ
If in doubt, say N.
config ARM_DB8500_CPUFREQ
tristate "ST-Ericsson DB8500 cpufreq" if COMPILE_TEST && !ARCH_U8500
default ARCH_U8500
depends on HAS_IOMEM
depends on !CPU_THERMAL || THERMAL
help
This adds the CPUFreq driver for ST-Ericsson Ux500 (DB8500) SoC
series.
config ARM_IMX6Q_CPUFREQ
tristate "Freescale i.MX6 cpufreq support"
depends on ARCH_MXC

1
drivers/cpufreq/Makefile
View File

@ -53,7 +53,6 @@ obj-$(CONFIG_ARM_DT_BL_CPUFREQ) += arm_big_little_dt.o
obj-$(CONFIG_ARM_BRCMSTB_AVS_CPUFREQ) += brcmstb-avs-cpufreq.o
obj-$(CONFIG_ARCH_DAVINCI) += davinci-cpufreq.o
obj-$(CONFIG_ARM_DB8500_CPUFREQ) += dbx500-cpufreq.o
obj-$(CONFIG_ARM_EXYNOS5440_CPUFREQ) += exynos5440-cpufreq.o
obj-$(CONFIG_ARM_HIGHBANK_CPUFREQ) += highbank-cpufreq.o
obj-$(CONFIG_ARM_IMX6Q_CPUFREQ) += imx6q-cpufreq.o

103
drivers/cpufreq/dbx500-cpufreq.c
View File

@ -1,103 +0,0 @@
/*
* Copyright (C) STMicroelectronics 2009
* Copyright (C) ST-Ericsson SA 2010-2012
*
* License Terms: GNU General Public License v2
* Author: Sundar Iyer <sundar.iyer@stericsson.com>
* Author: Martin Persson <martin.persson@stericsson.com>
* Author: Jonas Aaberg <jonas.aberg@stericsson.com>
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/cpufreq.h>
#include <linux/cpu_cooling.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
static struct cpufreq_frequency_table *freq_table;
static struct clk *armss_clk;
static struct thermal_cooling_device *cdev;
static int dbx500_cpufreq_target(struct cpufreq_policy *policy,
unsigned int index)
{
/* update armss clk frequency */
return clk_set_rate(armss_clk, freq_table[index].frequency * 1000);
}
static int dbx500_cpufreq_init(struct cpufreq_policy *policy)
{
policy->clk = armss_clk;
return cpufreq_generic_init(policy, freq_table, 20 * 1000);
}
static int dbx500_cpufreq_exit(struct cpufreq_policy *policy)
{
if (!IS_ERR(cdev))
cpufreq_cooling_unregister(cdev);
return 0;
}
static void dbx500_cpufreq_ready(struct cpufreq_policy *policy)
{
cdev = cpufreq_cooling_register(policy);
if (IS_ERR(cdev))
pr_err("Failed to register cooling device %ld\n", PTR_ERR(cdev));
else
pr_info("Cooling device registered: %s\n", cdev->type);
}
static struct cpufreq_driver dbx500_cpufreq_driver = {
.flags = CPUFREQ_STICKY | CPUFREQ_CONST_LOOPS |
CPUFREQ_NEED_INITIAL_FREQ_CHECK,
.verify = cpufreq_generic_frequency_table_verify,
.target_index = dbx500_cpufreq_target,
.get = cpufreq_generic_get,
.init = dbx500_cpufreq_init,
.exit = dbx500_cpufreq_exit,
.ready = dbx500_cpufreq_ready,
.name = "DBX500",
.attr = cpufreq_generic_attr,
};
static int dbx500_cpufreq_probe(struct platform_device *pdev)
{
struct cpufreq_frequency_table *pos;
freq_table = dev_get_platdata(&pdev->dev);
if (!freq_table) {
pr_err("dbx500-cpufreq: Failed to fetch cpufreq table\n");
return -ENODEV;
}
armss_clk = clk_get(&pdev->dev, "armss");
if (IS_ERR(armss_clk)) {
pr_err("dbx500-cpufreq: Failed to get armss clk\n");
return PTR_ERR(armss_clk);
}
pr_info("dbx500-cpufreq: Available frequencies:\n");
cpufreq_for_each_entry(pos, freq_table)
pr_info(" %d Mhz\n", pos->frequency / 1000);
return cpufreq_register_driver(&dbx500_cpufreq_driver);
}
static struct platform_driver dbx500_cpufreq_plat_driver = {
.driver = {
.name = "cpufreq-ux500",
},
.probe = dbx500_cpufreq_probe,
};
static int __init dbx500_cpufreq_register(void)
{
return platform_driver_register(&dbx500_cpufreq_plat_driver);
}
device_initcall(dbx500_cpufreq_register);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("cpufreq driver for DBX500");