bcm27xx: add linux 5.4 support

Tested on bcm2710 (Raspberry Pi 3B).

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 40 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0347-staging-vchiq_arm-Register-vcsm-cma-as-a-platform-dr.patch b/target/linux/bcm27xx/patches-5.4/950-0347-staging-vchiq_arm-Register-vcsm-cma-as-a-platform-dr.patch
new file mode 100644
index 0000000000..28641fd327
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0347-staging-vchiq_arm-Register-vcsm-cma-as-a-platform-dr.patch
@@ -0,0 +1,40 @@
+From efe24599e8996ef5844e73feae1ca1b27d8740ab Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 6 Nov 2019 13:57:48 +0000
+Subject: [PATCH] staging: vchiq_arm: Register vcsm-cma as a platform
+ driver
+
+Following the same pattern as bcm2835-camera and bcm2835-audio,
+register the vcsm-cma driver as a platform driver
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+@@ -140,6 +140,7 @@ static struct class  *vchiq_class;
+ static DEFINE_SPINLOCK(msg_queue_spinlock);
+ static struct platform_device *bcm2835_camera;
+ static struct platform_device *bcm2835_audio;
++static struct platform_device *vcsm_cma;
+ 
+ static struct vchiq_drvdata bcm2835_drvdata = {
+ 	.cache_line_size = 32,
+@@ -3250,6 +3251,7 @@ static int vchiq_probe(struct platform_d
+ 		VCHIQ_VERSION, VCHIQ_VERSION_MIN,
+ 		MAJOR(vchiq_devid), MINOR(vchiq_devid));
+ 
++	vcsm_cma = vchiq_register_child(pdev, "vcsm-cma");
+ 	bcm2835_camera = vchiq_register_child(pdev, "bcm2835-camera");
+ 	bcm2835_audio = vchiq_register_child(pdev, "bcm2835_audio");
+ 
+@@ -3266,6 +3268,7 @@ static int vchiq_remove(struct platform_
+ {
+ 	if (!IS_ERR(bcm2835_camera))
+ 		platform_device_unregister(bcm2835_camera);
++	platform_device_unregister(vcsm_cma);
+ 	vchiq_debugfs_deinit();
+ 	device_destroy(vchiq_class, vchiq_devid);
+ 	cdev_del(&vchiq_cdev);