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-rw-r--r--target/linux/bcm27xx/patches-4.19/950-0103-raspberrypi-firmware-Export-the-general-transaction-.patch32
1 files changed, 32 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0103-raspberrypi-firmware-Export-the-general-transaction-.patch b/target/linux/bcm27xx/patches-4.19/950-0103-raspberrypi-firmware-Export-the-general-transaction-.patch
new file mode 100644
index 0000000000..8f574a3226
--- /dev/null
+++ b/target/linux/bcm27xx/patches-4.19/950-0103-raspberrypi-firmware-Export-the-general-transaction-.patch
@@ -0,0 +1,32 @@
+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] 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