diff options
author | Viresh Kumar <viresh.kumar@linaro.org> | 2016-04-27 06:22:27 +0300 |
---|---|---|
committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-04-28 16:22:43 +0300 |
commit | 9f123def55d3fd0d76d49e0009419bcb994f6f1f (patch) | |
tree | 2b803cf47fe9c8ae78bd92153c6abfbefe59ec38 /arch/arm/mach-mvebu/pmsu.c | |
parent | eb96924acddc709db58221c210ca05cd9effb1df (diff) | |
download | linux-9f123def55d3fd0d76d49e0009419bcb994f6f1f.tar.xz |
cpufreq: mvebu: Move cpufreq code into drivers/cpufreq/
Move cpufreq bits for mvebu into drivers/cpufreq/ directory, that's
where they really belong to.
Compiled tested only.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'arch/arm/mach-mvebu/pmsu.c')
-rw-r--r-- | arch/arm/mach-mvebu/pmsu.c | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/arch/arm/mach-mvebu/pmsu.c b/arch/arm/mach-mvebu/pmsu.c index 8928f7caaf70..b44442338e4e 100644 --- a/arch/arm/mach-mvebu/pmsu.c +++ b/arch/arm/mach-mvebu/pmsu.c @@ -28,7 +28,6 @@ #include <linux/of_address.h> #include <linux/of_device.h> #include <linux/platform_device.h> -#include <linux/pm_opp.h> #include <linux/resource.h> #include <linux/slab.h> #include <linux/smp.h> @@ -607,87 +606,3 @@ int mvebu_pmsu_dfs_request(int cpu) return 0; } - -static int __init armada_xp_pmsu_cpufreq_init(void) -{ - struct device_node *np; - struct resource res; - int ret, cpu; - - if (!of_machine_is_compatible("marvell,armadaxp")) - return 0; - - /* - * In order to have proper cpufreq handling, we need to ensure - * that the Device Tree description of the CPU clock includes - * the definition of the PMU DFS registers. If not, we do not - * register the clock notifier and the cpufreq driver. This - * piece of code is only for compatibility with old Device - * Trees. - */ - np = of_find_compatible_node(NULL, NULL, "marvell,armada-xp-cpu-clock"); - if (!np) - return 0; - - ret = of_address_to_resource(np, 1, &res); - if (ret) { - pr_warn(FW_WARN "not enabling cpufreq, deprecated armada-xp-cpu-clock binding\n"); - of_node_put(np); - return 0; - } - - of_node_put(np); - - /* - * For each CPU, this loop registers the operating points - * supported (which are the nominal CPU frequency and half of - * it), and registers the clock notifier that will take care - * of doing the PMSU part of a frequency transition. - */ - for_each_possible_cpu(cpu) { - struct device *cpu_dev; - struct clk *clk; - int ret; - - cpu_dev = get_cpu_device(cpu); - if (!cpu_dev) { - pr_err("Cannot get CPU %d\n", cpu); - continue; - } - - clk = clk_get(cpu_dev, 0); - if (IS_ERR(clk)) { - pr_err("Cannot get clock for CPU %d\n", cpu); - return PTR_ERR(clk); - } - - /* - * In case of a failure of dev_pm_opp_add(), we don't - * bother with cleaning up the registered OPP (there's - * no function to do so), and simply cancel the - * registration of the cpufreq device. - */ - ret = dev_pm_opp_add(cpu_dev, clk_get_rate(clk), 0); - if (ret) { - clk_put(clk); - return ret; - } - - ret = dev_pm_opp_add(cpu_dev, clk_get_rate(clk) / 2, 0); - if (ret) { - clk_put(clk); - return ret; - } - - ret = dev_pm_opp_set_sharing_cpus(cpu_dev, - cpumask_of(cpu_dev->id)); - if (ret) - dev_err(cpu_dev, "%s: failed to mark OPPs as shared: %d\n", - __func__, ret); - } - - platform_device_register_simple("cpufreq-dt", -1, NULL, 0); - return 0; -} - -device_initcall(armada_xp_pmsu_cpufreq_init); |