950-0110-raspberrypi-firmware-Export-the-general-transaction-.patch

From 79d09be78f74e3c81ff25f1f78fb17a2f112e3cd Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Wed, 14 Sep 2016 09:16:19 +0100
Subject: [PATCH 110/806] 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
@@ -45,7 +45,7 @@ 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);
@@ -66,6 +66,7 @@ rpi_firmware_transaction(struct rpi_firm
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(rpi_firmware_transaction);
 
 /**
  * rpi_firmware_property_list - Submit firmware property list