Commit 919096f7 authored by Linus Walleij's avatar Linus Walleij Committed by Rafael J. Wysocki
Browse files

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: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 836a1e25

arch/arm/mach-ux500/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -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

drivers/cpufreq/Kconfig.arm

+0 −9
Original line number Diff line number Diff line
@@ -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

drivers/cpufreq/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -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

drivers/cpufreq/dbx500-cpufreq.c

deleted100644 → 0
+0 −103
Original line number Diff line number Diff line 
/*

 * 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");