bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)

1 files changed, 29 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0183-staging-mmal-vchiq-If-the-VPU-returns-an-error-don-t.patch b/target/linux/bcm27xx/patches-5.4/950-0183-staging-mmal-vchiq-If-the-VPU-returns-an-error-don-t.patch
new file mode 100644
index 0000000000..60550ede00
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0183-staging-mmal-vchiq-If-the-VPU-returns-an-error-don-t.patch
@@ -0,0 +1,29 @@
+From 8bf13b2aedef0e0ef2250dd612f453e1a923a2d7 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 13 Feb 2019 12:51:03 +0000
+Subject: [PATCH] staging: mmal-vchiq: If the VPU returns an error,
+ don't negate it
+
+There is an enum for the errors that the VPU can return.
+port_parameter_get was negating that value, but also using -EINVAL
+from the Linux error codes.
+Pass the VPU error code as positive values. Should the function
+need to pass a Linux failure, then return that as negative.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+@@ -1400,7 +1400,8 @@ static int port_parameter_get(struct vch
+ 		goto release_msg;
+ 	}
+ 
+-	ret = -rmsg->u.port_parameter_get_reply.status;
++	ret = rmsg->u.port_parameter_get_reply.status;
++
+ 	/* port_parameter_get_reply.size includes the header,
+ 	 * whilst *value_size doesn't.
+ 	 */