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| author | Dmitry Osipenko <digetx@gmail.com> | 2018-05-18 22:06:40 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-05-21 13:44:24 +0200 |
| commit | a413d2cea1cf35eda1c2ac2aff85791b99937447 (patch) | |
| tree | a55427de032971425e80a2398d452c445d9aac5d /drivers/cpufreq | |
| parent | cpufreq: tegra20: Remove unneeded variable initialization (diff) | |
| download | linux-a413d2cea1cf35eda1c2ac2aff85791b99937447.tar.xz linux-a413d2cea1cf35eda1c2ac2aff85791b99937447.zip | |
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>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/tegra20-cpufreq.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/cpufreq/tegra20-cpufreq.c b/drivers/cpufreq/tegra20-cpufreq.c index 36075aee2ff2..7b425ebe81e7 100644 --- a/drivers/cpufreq/tegra20-cpufreq.c +++ b/drivers/cpufreq/tegra20-cpufreq.c @@ -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); |