[PATCH v1 07/11] cpufreq: tegra20: Check if this is Tegra20 machine

[Dmitry Osipenko]

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 <dig...@gmail.com>
---
 drivers/cpufreq/tegra20-cpufreq.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/cpufreq/tegra20-cpufreq.c 
b/drivers/cpufreq/tegra20-cpufreq.c
index 147ae3e14f18..797c61c74b65 100644
--- a/drivers/cpufreq/tegra20-cpufreq.c
+++ b/drivers/cpufreq/tegra20-cpufreq.c
@@ -19,6 +19,7 @@
 #include <linux/clk.h>
 #include <linux/cpufreq.h>
 #include <linux/module.h>
+#include <linux/of.h>
 
 static struct cpufreq_frequency_table freq_table[] = {
        { .frequency = 216000 },
@@ -155,6 +156,9 @@ 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);
-- 
2.17.0