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authorViresh Kumar <viresh.kumar@linaro.org>2016-04-27 06:22:27 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-04-28 16:22:43 +0300
commit9f123def55d3fd0d76d49e0009419bcb994f6f1f (patch)
tree2b803cf47fe9c8ae78bd92153c6abfbefe59ec38 /arch/arm/mach-mvebu/pmsu.c
parenteb96924acddc709db58221c210ca05cd9effb1df (diff)
downloadlinux-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.c85
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);