OpenWrt – Rev 4

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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)