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cpufreq: cpufreq-cpu0: remove device tree parsing for cpu nodes

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Now that the cpu device registration initialises the of_node(if available)
appropriately for all the cpus, parsing here is redundant.

This patch removes all DT parsing and uses cpu->of_node instead.

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
This commit is contained in:
Sudeep KarkadaNagesha 2013-06-17 15:04:19 +01:00
parent cdc58d602d
commit f837a9b5ab
1 changed files with 4 additions and 19 deletions
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23
drivers/cpufreq/cpufreq-cpu0.c
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@ -174,29 +174,17 @@ static struct cpufreq_driver cpu0_cpufreq_driver = {
static int cpu0_cpufreq_probe(struct platform_device *pdev) static int cpu0_cpufreq_probe(struct platform_device *pdev)
{ {
struct device_node *np, *parent; struct device_node *np;
int ret; int ret;
parent = of_find_node_by_path("/cpus"); cpu_dev = &pdev->dev;
if (!parent) {
pr_err("failed to find OF /cpus\n");
return -ENOENT;
}
for_each_child_of_node(parent, np) {
if (of_get_property(np, "operating-points", NULL))
break;
}
np = of_node_get(cpu_dev->of_node);
if (!np) { if (!np) {
pr_err("failed to find cpu0 node\n"); pr_err("failed to find cpu0 node\n");
ret = -ENOENT; return -ENOENT;
goto out_put_parent;
} }
cpu_dev = &pdev->dev;
cpu_dev->of_node = np;
cpu_reg = devm_regulator_get(cpu_dev, "cpu0"); cpu_reg = devm_regulator_get(cpu_dev, "cpu0");
if (IS_ERR(cpu_reg)) { if (IS_ERR(cpu_reg)) {
/* /*
@ -269,15 +257,12 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
} }
of_node_put(np); of_node_put(np);
of_node_put(parent);
return 0; return 0;
out_free_table: out_free_table:
opp_free_cpufreq_table(cpu_dev, &freq_table); opp_free_cpufreq_table(cpu_dev, &freq_table);
out_put_node: out_put_node:
of_node_put(np); of_node_put(np);
out_put_parent:
of_node_put(parent);
return ret; return ret;
} }