soc: brcmstb: biuctrl: Move to early_initcall

Being called during early_initcall() is early enough that it occurs
before SMP initialization, which is all we care about for the Bus
Interface Unit configuration.

This solves lack of BIU initialization on ARM64 platforms where we do
not have an anchor where to put the BIU initialization (since there are
no machine descriptors).

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/soc/bcm/brcmstb/biuctrl.c b/drivers/soc/bcm/brcmstb/biuctrl.c
index dd45bbfe64dd..2b23ae7b5e9b 100644
--- a/drivers/soc/bcm/brcmstb/biuctrl.c
+++ b/drivers/soc/bcm/brcmstb/biuctrl.c
@@ -240,7 +240,7 @@ static struct syscore_ops brcmstb_cpu_credit_syscore_ops = {
 #endif
 
 
-void __init brcmstb_biuctrl_init(void)
+static int __init brcmstb_biuctrl_init(void)
 {
 	int ret;
 
@@ -249,11 +249,13 @@ void __init brcmstb_biuctrl_init(void)
 	ret = mcp_write_pairing_set();
 	if (ret) {
 		pr_err("MCP: Unable to disable write pairing!\n");
-		return;
+		return ret;
 	}
 
 	mcp_b53_set();
 #ifdef CONFIG_PM_SLEEP
 	register_syscore_ops(&brcmstb_cpu_credit_syscore_ops);
 #endif
+	return 0;
 }
+early_initcall(brcmstb_biuctrl_init);