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-5.4/950-0926-drm-vc4-Remove-UIF-from-the-list-of-modifiers-return.patch b/target/linux/bcm27xx/patches-5.4/950-0926-drm-vc4-Remove-UIF-from-the-list-of-modifiers-return.patch
new file mode 100644
index 0000000000..7ae22a72fc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0926-drm-vc4-Remove-UIF-from-the-list-of-modifiers-return.patch
@@ -0,0 +1,29 @@
+From 132454781a30f57ccb393443209def76dc0b572a Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 28 Jul 2020 13:01:42 +0100
+Subject: [PATCH] drm/vc4: Remove UIF from the list of modifiers
+ returned by format_mod_supported
+
+FKMS was listing UIF in the supported modifiers from format_mod_supported
+when actually the pipeline doesn't support it. X was then choosing to
+use it, and that then failed to render.
+
+Remove references to UIF.
+
+https://github.com/raspberrypi/linux/issues/3665
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 1 -
+ 1 file changed, 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -718,7 +718,6 @@ static bool vc4_fkms_format_mod_supporte
+ 		switch (modifier) {
+ 		case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED:
+ 		case DRM_FORMAT_MOD_LINEAR:
+-		case DRM_FORMAT_MOD_BROADCOM_UIF:
+ 			return true;
+ 		default:
+ 			return false;