[PATCH 4/4] cpufreq: dbx500: Delete obsolete driver

Linus Walleij
2017-08-10T12:52:21Z

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.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
arch/arm/mach-ux500/Kconfig | 1 +
drivers/cpufreq/Kconfig.arm | 9 ----
drivers/cpufreq/Makefile | 1 -
drivers/cpufreq/dbx500-cpufreq.c | 103 ---------------------------------------
4 files changed, 1 insertion(+), 113 deletions(-)
delete mode 100644 drivers/cpufreq/dbx500-cpufreq.c

diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index 4740ac393297..2b56e4af5a27 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -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
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 2011fec2d6ad..74ed7e9a7f27 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -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
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index ab3a42cd29ef..a07c6efe4910 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -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
diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c
deleted file mode 100644
index 4ee0431579c1..000000000000
--- a/drivers/cpufreq/dbx500-cpufreq.c
+++ /dev/null
@@ -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");
--
2.9.4