[v6,1/7] PCC: Initialize PCC Mailbox earlier at boot

Message ID e5f53a07775cfb896688051b31acb2261ec1d3a2.1434398373.git.ashwin.chaugule@linaro.org
State Superseded
Headers show

Commit Message

Ashwin Chaugule June 15, 2015, 8:09 p.m.
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 <ashwin.chaugule@linaro.org>
Reviewed-by: Al Stone <al.stone@linaro.org>
---
 drivers/mailbox/pcc.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

Patch

diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
index 7e91d68..fcda63e 100644
--- 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);