The cpufreq-dt driver allows cpufreq driver enabled without valid
regulator assigned, however, all i.MX platforms using cpufreq-dt
driver now require valid regulator, add "cpu-supply" property check
to avoid i.MX platforms' cpufreq enabled without valid regulator
and lead to system unstable.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
int speed_grade, mkt_segment;
int ret;
+ if (!of_find_property(cpu_dev->of_node, "cpu-supply", NULL))
+ return -ENODEV;
+
ret = nvmem_cell_read_u32(cpu_dev, "speed_grade", &cell_value);
if (ret)
return ret;