openwrt/target/linux/ipq40xx/patches-4.14/070-qcom-spm-fix-probe-order.patch

From 341844c7e06afccd64261719fa388339a589b0a4 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Sun, 22 Jul 2018 12:53:04 +0200
Subject: [PATCH] soc: qcom: spm: add SCM probe dependency

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>
---
 drivers/soc/qcom/spm.c | 3 +++
 1 file changed, 3 insertions(+)

--- 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)