openwrtv3/target/linux/ipq806x/patches-4.9/0070-qcom-spm-fix-probe-order.patch
Felix Fietkau 2029167b56 ipq806x: fix crash on 4.9 if the rpm clock probe happens before cpuidle init
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2017-03-13 13:40:56 +01:00

16 lines
444 B
Diff

Check for SCM availability before attempting to use SPM
Signed-off-by: Felix Fietkau <nbd@nbd.name>
--- a/drivers/soc/qcom/spm.c
+++ b/drivers/soc/qcom/spm.c
@@ -219,6 +219,9 @@ static int __init qcom_cpuidle_init(stru
cpumask_t mask;
bool use_scm_power_down = false;
+ if (!qcom_scm_is_available())
+ return -EPROBE_DEFER;
+
for (i = 0; ; i++) {
state_node = of_parse_phandle(cpu_node, "cpu-idle-states", i);
if (!state_node)