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cpufreq: cpufreq-cpu0: assign cpu_dev correctly to cpu0 device

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Commit f837a9b5ab "cpufreq: cpufreq-cpu0:
remove device tree parsing for cpu nodes" assumed the pdev->dev is set to
cpu0 device in the platform code. But it actually points to the virtual
cpufreq-cpu0 platform device which is not present in the device tree.
Most of the information needed by cpufreq is stored in cpu0 DT node.
So cpu_dev must point to cpu0 device.

This patch fixes the wrong assignment to cpu_dev.

Reported-and-tested-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Sudeep KarkadaNagesha 2013-09-10 18:59:46 +01:00 committed by Rafael J. Wysocki
parent 8efd57657d
commit e1825b2530
1 changed files with 6 additions and 1 deletions
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7
drivers/cpufreq/cpufreq-cpu0.c
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@ -12,6 +12,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/clk.h>
#include <linux/cpu.h>
#include <linux/cpufreq.h>
#include <linux/err.h>
#include <linux/module.h>
@ -177,7 +178,11 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
struct device_node *np;
int ret;
cpu_dev = &pdev->dev;
cpu_dev = get_cpu_device(0);
if (!cpu_dev) {
pr_err("failed to get cpu0 device\n");
return -ENODEV;
}
np = of_node_get(cpu_dev->of_node);
if (!np) {