PCC: Initialize PCC Mailbox earlier at boot

This change initializes the PCC Mailbox earlier than the ACPI processor driver. This enables drivers introduced in follow up patches (e.g. CPPC) to be probed via the ACPI processor driver interface. The CPPC probe requires the PCC channel to be initialized for it to query each CPUs performance capabilities. Signed-off-by: Ashwin Chaugule <[email protected]> Reviewed-by: Al Stone <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
imesh · Aug 25, 2015 · d3c68f2 · d3c68f2
1 parent 8ce344c
commit d3c68f2
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
@@ -352,4 +352,10 @@ static int __init pcc_init(void)
 
 	return 0;
 }
-device_initcall(pcc_init);
+
+/*
+ * Make PCC init postcore so that users of this mailbox
+ * such as the ACPI Processor driver have it available
+ * at their init.
+ */
+postcore_initcall(pcc_init);