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soc: qcom: spm: add SCM probe dependency

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Check for SCM availability before attempting to use SPM. SPM probe will
fail otherwise.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
This commit is contained in:
Felix Fietkau 2018-07-23 16:17:35 +02:00 committed by Andy Gross
parent ccfb464cd1
commit 61a3bd1008
1 changed files with 3 additions and 0 deletions
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3
drivers/soc/qcom/spm.c
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@ -219,6 +219,9 @@ static int __init qcom_cpuidle_init(struct device_node *cpu_node, int cpu)
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)