-Generic CPU0 cpufreq driver
+Generic cpufreq driver
-It is a generic cpufreq driver for CPU0 frequency management. It
-supports both uniprocessor (UP) and symmetric multiprocessor (SMP)
-systems which share clock and voltage across all CPUs.
+It is a generic DT based cpufreq driver for frequency management. It supports
+both uniprocessor (UP) and symmetric multiprocessor (SMP) systems which share
+clock and voltage across all CPUs.
Both required and optional properties listed below must be defined
under node /cpus/cpu@0.
CONFIG_CPU_IDLE=y
CONFIG_ARM_MVEBU_V7_CPUIDLE=y
CONFIG_CPU_FREQ=y
-CONFIG_CPUFREQ_GENERIC=y
+CONFIG_CPUFREQ_DT=y
CONFIG_VFP=y
CONFIG_NET=y
CONFIG_INET=y
static void __init imx27_dt_init(void)
{
- struct platform_device_info devinfo = { .name = "cpufreq-cpu0", };
+ struct platform_device_info devinfo = { .name = "cpufreq-dt", };
mxc_arch_reset_init_dt();
static void __init imx51_dt_init(void)
{
- struct platform_device_info devinfo = { .name = "cpufreq-cpu0", };
+ struct platform_device_info devinfo = { .name = "cpufreq-dt", };
mxc_arch_reset_init_dt();
imx51_ipu_mipi_setup();
}
}
- platform_device_register_simple("cpufreq-generic", -1, NULL, 0);
+ platform_device_register_simple("cpufreq-dt", -1, NULL, 0);
return 0;
}
if (!of_have_populated_dt())
devinfo.name = "omap-cpufreq";
else
- devinfo.name = "cpufreq-cpu0";
+ devinfo.name = "cpufreq-dt";
platform_device_register_full(&devinfo);
}
r8a73a4_add_dt_devices();
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
- platform_device_register_simple("cpufreq-cpu0", -1, NULL, 0);
+ platform_device_register_simple("cpufreq-dt", -1, NULL, 0);
}
static const char *ape6evm_boards_compat_dt[] __initdata = {
int __init shmobile_cpufreq_init(void)
{
- platform_device_register_simple("cpufreq-cpu0", -1, NULL, 0);
+ platform_device_register_simple("cpufreq-dt", -1, NULL, 0);
return 0;
}
void __init sh73a0_add_standard_devices_dt(void)
{
- struct platform_device_info devinfo = { .name = "cpufreq-cpu0", .id = -1, };
+ struct platform_device_info devinfo = { .name = "cpufreq-dt", .id = -1, };
/* clocks are setup late during boot in the case of DT */
sh73a0_clock_init();
ARRAY_SIZE(sh73a0_devices_dt));
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
- /* Instantiate cpufreq-cpu0 */
+ /* Instantiate cpufreq-dt */
platform_device_register_full(&devinfo);
}
*/
static void __init zynq_init_machine(void)
{
- struct platform_device_info devinfo = { .name = "cpufreq-cpu0", };
+ struct platform_device_info devinfo = { .name = "cpufreq-dt", };
struct soc_device_attribute *soc_dev_attr;
struct soc_device *soc_dev;
struct device *parent = NULL;
If in doubt, say N.
-config GENERIC_CPUFREQ_CPU0
- tristate "Generic CPU0 cpufreq driver"
+config CPUFREQ_DT
+ tristate "Generic DT based cpufreq driver"
depends on HAVE_CLK && OF
- # if CPU_THERMAL is on and THERMAL=m, CPU0 cannot be =y:
+ # if CPU_THERMAL is on and THERMAL=m, CPUFREQ_DT cannot be =y:
depends on !CPU_THERMAL || THERMAL
select PM_OPP
help
- This adds a generic cpufreq driver for CPU0 frequency management.
+ This adds a generic DT based cpufreq driver for frequency management.
It supports both uniprocessor (UP) and symmetric multiprocessor (SMP)
systems which share clock and voltage across all CPUs.
config ARM_HIGHBANK_CPUFREQ
tristate "Calxeda Highbank-based"
- depends on ARCH_HIGHBANK && GENERIC_CPUFREQ_CPU0 && REGULATOR
+ depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR
default m
help
This adds the CPUFreq driver for Calxeda Highbank SoC
obj-$(CONFIG_CPU_FREQ_GOV_CONSERVATIVE) += cpufreq_conservative.o
obj-$(CONFIG_CPU_FREQ_GOV_COMMON) += cpufreq_governor.o
-obj-$(CONFIG_GENERIC_CPUFREQ_CPU0) += cpufreq-cpu0.o
+obj-$(CONFIG_CPUFREQ_DT) += cpufreq-dt.o
##################################################################################
# x86 drivers.
* Copyright (C) 2014 Linaro.
* Viresh Kumar <viresh.kumar@linaro.org>
*
- * The OPP code in function cpu0_set_target() is reused from
+ * The OPP code in function set_target() is reused from
* drivers/cpufreq/omap-cpufreq.c
*
* This program is free software; you can redistribute it and/or modify
unsigned int voltage_tolerance; /* in percentage */
};
-static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index)
+static int set_target(struct cpufreq_policy *policy, unsigned int index)
{
struct dev_pm_opp *opp;
struct cpufreq_frequency_table *freq_table = policy->freq_table;
return ret;
}
-static int cpu0_cpufreq_init(struct cpufreq_policy *policy)
+static int cpufreq_init(struct cpufreq_policy *policy)
{
struct cpufreq_frequency_table *freq_table;
struct thermal_cooling_device *cdev;
return ret;
}
-static int cpu0_cpufreq_exit(struct cpufreq_policy *policy)
+static int cpufreq_exit(struct cpufreq_policy *policy)
{
struct private_data *priv = policy->driver_data;
return 0;
}
-static struct cpufreq_driver cpu0_cpufreq_driver = {
+static struct cpufreq_driver dt_cpufreq_driver = {
.flags = CPUFREQ_STICKY | CPUFREQ_NEED_INITIAL_FREQ_CHECK,
.verify = cpufreq_generic_frequency_table_verify,
- .target_index = cpu0_set_target,
+ .target_index = set_target,
.get = cpufreq_generic_get,
- .init = cpu0_cpufreq_init,
- .exit = cpu0_cpufreq_exit,
- .name = "generic_cpu0",
+ .init = cpufreq_init,
+ .exit = cpufreq_exit,
+ .name = "cpufreq-dt",
.attr = cpufreq_generic_attr,
};
-static int cpu0_cpufreq_probe(struct platform_device *pdev)
+static int dt_cpufreq_probe(struct platform_device *pdev)
{
struct device *cpu_dev;
struct regulator *cpu_reg;
if (!IS_ERR(cpu_reg))
regulator_put(cpu_reg);
- ret = cpufreq_register_driver(&cpu0_cpufreq_driver);
+ ret = cpufreq_register_driver(&dt_cpufreq_driver);
if (ret)
dev_err(cpu_dev, "failed register driver: %d\n", ret);
return ret;
}
-static int cpu0_cpufreq_remove(struct platform_device *pdev)
+static int dt_cpufreq_remove(struct platform_device *pdev)
{
- cpufreq_unregister_driver(&cpu0_cpufreq_driver);
+ cpufreq_unregister_driver(&dt_cpufreq_driver);
return 0;
}
-static struct platform_driver cpu0_cpufreq_platdrv = {
+static struct platform_driver dt_cpufreq_platdrv = {
.driver = {
- .name = "cpufreq-cpu0",
+ .name = "cpufreq-dt",
.owner = THIS_MODULE,
},
- .probe = cpu0_cpufreq_probe,
- .remove = cpu0_cpufreq_remove,
+ .probe = dt_cpufreq_probe,
+ .remove = dt_cpufreq_remove,
};
-module_platform_driver(cpu0_cpufreq_platdrv);
+module_platform_driver(dt_cpufreq_platdrv);
MODULE_AUTHOR("Viresh Kumar <viresh.kumar@linaro.org>");
MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>");
-MODULE_DESCRIPTION("Generic CPU0 cpufreq driver");
+MODULE_DESCRIPTION("Generic cpufreq driver");
MODULE_LICENSE("GPL");
* dependencies on platform headers. It is necessary to enable
* Exynos multi-platform support and will be removed together with
* this whole driver as soon as Exynos gets migrated to use
- * cpufreq-cpu0 driver.
+ * cpufreq-dt driver.
*/
np = of_find_compatible_node(NULL, NULL, "samsung,exynos4210-clock");
if (!np) {
* dependencies on platform headers. It is necessary to enable
* Exynos multi-platform support and will be removed together with
* this whole driver as soon as Exynos gets migrated to use
- * cpufreq-cpu0 driver.
+ * cpufreq-dt driver.
*/
np = of_find_compatible_node(NULL, NULL, "samsung,exynos4412-clock");
if (!np) {
* dependencies on platform headers. It is necessary to enable
* Exynos multi-platform support and will be removed together with
* this whole driver as soon as Exynos gets migrated to use
- * cpufreq-cpu0 driver.
+ * cpufreq-dt driver.
*/
np = of_find_compatible_node(NULL, NULL, "samsung,exynos5250-clock");
if (!np) {
* published by the Free Software Foundation.
*
* This driver provides the clk notifier callbacks that are used when
- * the cpufreq-cpu0 driver changes to frequency to alert the highbank
+ * the cpufreq-dt driver changes to frequency to alert the highbank
* EnergyCore Management Engine (ECME) about the need to change
* voltage. The ECME interfaces with the actual voltage regulators.
*/
static int hb_cpufreq_driver_init(void)
{
- struct platform_device_info devinfo = { .name = "cpufreq-cpu0", };
+ struct platform_device_info devinfo = { .name = "cpufreq-dt", };
struct device *cpu_dev;
struct clk *cpu_clk;
struct device_node *np;
goto out_put_node;
}
- /* Instantiate cpufreq-cpu0 */
+ /* Instantiate cpufreq-dt */
platform_device_register_full(&devinfo);
out_put_node:
* and dependencies on platform headers. It is necessary to enable
* S5PV210 multi-platform support and will be removed together with
* this whole driver as soon as S5PV210 gets migrated to use
- * cpufreq-cpu0 driver.
+ * cpufreq-dt driver.
*/
np = of_find_compatible_node(NULL, NULL, "samsung,s5pv210-clock");
if (!np) {
projects / users / hch / xfs.git / commitdiff