Commit a413d2ce authored May 18, 2018 by Dmitry Osipenko Committed by Rafael J. Wysocki May 21, 2018

cpufreq: tegra20: Check if this is Tegra20 machine



Don't even try to request the clocks during of module initialization on
non-Tegra20 machines (this is the case for a multi-platform kernel) for
consistency.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent f39d4d5e

drivers/cpufreq/tegra20-cpufreq.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@
		#include <linux/err.h>
		#include <linux/init.h>
		#include <linux/module.h>
		#include <linux/of.h>
		#include <linux/types.h>

		static struct cpufreq_frequency_table freq_table[] = {
		@@ -158,6 +159,9 @@ static int __init tegra_cpufreq_init(void)
		{
		int err;

		if (!of_machine_is_compatible("nvidia,tegra20"))
		return -ENODEV;

		cpu_clk = clk_get_sys(NULL, "cclk");
		if (IS_ERR(cpu_clk))
		return PTR_ERR(cpu_clk);