From e8d812ff247c8d194bee2d353baf8cc3bbd52690 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Wed, 14 Sep 2016 09:16:19 +0100
Subject: [PATCH] raspberrypi-firmware: Export the general transaction
 function.

The vc4-firmware-kms module is going to be doing the MBOX FB call.

Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/firmware/raspberrypi.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/firmware/raspberrypi.c
+++ b/drivers/firmware/raspberrypi.c
@@ -43,7 +43,7 @@ static void response_callback(struct mbo
  * Sends a request to the firmware through the BCM2835 mailbox driver,
  * and synchronously waits for the reply.
  */
-static int
+int
 rpi_firmware_transaction(struct rpi_firmware *fw, u32 chan, u32 data)
 {
 	u32 message = MBOX_MSG(chan, data);
@@ -68,6 +68,7 @@ rpi_firmware_transaction(struct rpi_firm
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(rpi_firmware_transaction);
 
 /**
  * rpi_firmware_property_list - Submit firmware property list
