[PATCH v4 1/4] Mailbox: Prepare to add PCC Mailbox support

[Ashwin Chaugule <ashwin.chaugule@linaro.org>]

Restructure code to allow extending the Mailbox
functionality for PCC (Platform Communication Channel)
as a Mailbox.

Signed-off-by: Ashwin Chaugule <ashwin.chaugule@linaro.org>
---
 drivers/mailbox/mailbox.c          | 10 +++-------
 include/linux/mailbox_controller.h |  4 ++++
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/mailbox/mailbox.c b/drivers/mailbox/mailbox.c
index 63ecc17..5866412 100644
--- a/drivers/mailbox/mailbox.c
+++ b/drivers/mailbox/mailbox.c
@@ -21,12 +21,8 @@
 #include <linux/mailbox_client.h>
 #include <linux/mailbox_controller.h>
 
-#define TXDONE_BY_IRQ	BIT(0) /* controller has remote RTR irq */
-#define TXDONE_BY_POLL	BIT(1) /* controller can read status of last TX */
-#define TXDONE_BY_ACK	BIT(2) /* S/W ACK recevied by Client ticks the TX */
-
-static LIST_HEAD(mbox_cons);
-static DEFINE_MUTEX(con_mutex);
+LIST_HEAD(mbox_cons);
+DEFINE_MUTEX(con_mutex);
 
 static int add_to_rbuf(struct mbox_chan *chan, void *mssg)
 {
@@ -107,7 +103,7 @@ static void tx_tick(struct mbox_chan *chan, int r)
 		complete(&chan->tx_complete);
 }
 
-static void poll_txdone(unsigned long data)
+void poll_txdone(unsigned long data)
 {
 	struct mbox_controller *mbox = (struct mbox_controller *)data;
 	bool txdone, resched = false;
diff --git a/include/linux/mailbox_controller.h b/include/linux/mailbox_controller.h
index 9ee195b..956cc06 100644
--- a/include/linux/mailbox_controller.h
+++ b/include/linux/mailbox_controller.h
@@ -15,6 +15,10 @@
 
 struct mbox_chan;
 
+#define TXDONE_BY_IRQ	BIT(0) /* controller has remote RTR irq */
+#define TXDONE_BY_POLL	BIT(1) /* controller can read status of last TX */
+#define TXDONE_BY_ACK	BIT(2) /* S/W ACK recevied by Client ticks the TX */
+
 /**
  * struct mbox_chan_ops - methods to control mailbox channels
  * @send_data:	The API asks the MBOX controller driver, in atomic
-- 
1.9.1